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Source: Rosaceae of North America Update, database (version 2011)

ITIS records citing this source
 
 Kingdom Plantae
  Acaena Mutis ex L. -- accepted
  Acaena anserinifolia auct. non (J.R. Forst. & G. Forst.) Druce -- not accepted
  Acaena californica Bitter -- not accepted
  Acaena exigua A. Gray -- accepted -- liliwai
  Acaena exigua var. exigua A. Gray -- not accepted
  Acaena exigua var. glaberrima Bitter -- not accepted
  Acaena exigua var. glabriuscula Bitter -- not accepted
  Acaena exigua var. subtusstrigulosa Bitter -- not accepted
  Acaena myriophylla Lindl. -- accepted -- cadillo
  Acaena novae-zelandiae Kirk -- accepted -- biddy-biddy, bidgee-widgee, New Zealand bur, pirri-pirri bur
  Acaena novae-zelandiae var. pallida Kirk -- not accepted
  Acaena novae-zelandica Kirk -- not accepted -- biddy-biddy, bidgee-widgee, New Zealand bur, pale biddy-biddy, pirri-pirri bur
  Acaena pallida (Kirk) Allan -- accepted -- pale biddy-biddy
  Acaena pinnatifida Ruiz & Pav. -- accepted -- Argentinian biddy-biddy, sheepburr
  Acaena pinnatifida var. californica (Bitter) Jeps. -- accepted -- California sheepburr
  Acaena sanguisorbae auct. non (L. f.) Vahl -- not accepted
  Acomastylis Greene -- not accepted
  Acomastylis calthifolia (Menzies ex Sm.) Bolle -- not accepted
  Acomastylis macrantha (Kearney) Bolle -- not accepted
  Acomastylis peckii (Pursh) Bolle -- not accepted
  Acomastylis radiata (Michx.) Bolle -- not accepted
  Acomastylis rossii (R. Br.) Greene -- not accepted
  Acomastylis rossii ssp. turbinata (Rydb.) W.A. Weber -- not accepted
  Actaea dioica Walter -- not accepted
  Adenorachis atropurpurea (Britton) Nieuwl. -- not accepted
  Adenostoma Hook. & Arn. -- accepted -- chamise
  Adenostoma fasciculatum Hook. & Arn. -- accepted -- chamise
  Adenostoma fasciculatum var. fasciculatum Hook. & Arn. -- accepted -- chamise, common chamise
  Adenostoma fasciculatum var. obtusifolium S. Watson -- accepted -- chamise
  Adenostoma fasciculatum var. prostratum Dunkle -- accepted -- chamise
  Adenostoma sparsifolium Torr. -- accepted -- red shank, redshank
  Agrimonia L. -- accepted -- agrimony
  Agrimonia bicknellii (Kearney) Rydb. -- not accepted -- Bicknell's groovebur
  Agrimonia brittoniana E.P. Bicknell -- not accepted
  Agrimonia eupatoria L. -- accepted -- churchsteeples
  Agrimonia eupatoria var. mollis Torr. & A. Gray -- not accepted
  Agrimonia eupatoria var. parviflora Hook. -- not accepted
  Agrimonia gryposepala Wallr. -- accepted -- agrimony, tall hairy agrimony, tall hairy groovebur
  Agrimonia incisa Torr. & A. Gray -- accepted -- incised agrimony, incised groovebur
  Agrimonia macrocarpa (Focke) Rydb. -- not accepted
  Agrimonia microcarpa Wallr. -- accepted -- smallfruit agrimony
  Agrimonia mollis (Torr. & A. Gray) Britton -- not accepted
  Agrimonia mollis var. bicknellii Kearney -- not accepted
  Agrimonia odorata Mill. -- not accepted
  Agrimonia parviflora Aiton -- accepted -- harvestlice, manyflowered groovebur
  Agrimonia parviflora var. macrocarpa Focke -- not accepted
  Agrimonia platycarpa Wallr. -- not accepted
  Agrimonia polyphylla Urb. -- not accepted
  Agrimonia pubescens Wallr. -- accepted -- aigremoine pubescente, groovebur, roadside agrimony, soft agrimony, soft groovebur
  Agrimonia pubescens var. microcarpa (Wallr.) H.E. Ahles -- not accepted
  Agrimonia pumila Muhl. ex E.P. Bicknell -- not accepted
  Agrimonia repens L. -- accepted -- creeping agrimony, creeping grovebur
  Agrimonia rostellata Wallr. -- accepted -- beaked agrimony, woodland groovebur
  Agrimonia serrifolia Wallr. -- not accepted
  Agrimonia striata Michx. -- accepted -- roadside agrimony, woodland groovebur
  Agrimonia striata var. campanulata Fernald -- not accepted
  Agrimonia suaveolens Pursh -- not accepted
  Alchemilla L. -- accepted -- lady's mantle
  Alchemilla alpestris F.W. Schmidt -- not accepted
  Alchemilla alpina L. -- accepted -- alpine lady's mantle
  Alchemilla arvensis (L.) Scop. -- not accepted
  Alchemilla connivens var. wichurae Buser -- not accepted
  Alchemilla cuneifolia Nutt. -- not accepted
  Alchemilla filicaulis Buser -- accepted -- thinstem lady's mantle
  Alchemilla filicaulis f. vestita Buser -- not accepted
  Alchemilla filicaulis ssp. filicaulis Buser -- accepted -- thin-stem lady's mantle, thinstem lady's mantle
  Alchemilla filicaulis ssp. vestita (Buser) M.E. Bradshaw -- accepted -- thinstem lady's mantle
  Alchemilla filicaulis var. denudata Buser -- not accepted
  Alchemilla glabra Neygenf. -- accepted -- smooth lady's mantle
  Alchemilla glaucescens Wallr. -- accepted -- waxy lady's mantle
  Alchemilla glomerulans Buser -- accepted -- clustered lady's mantle, clustered lady's-mantle
  Alchemilla gracilis Opiz -- accepted
  Alchemilla lapeyrousii Buser -- not accepted -- Lapeyrous' lady's mantle
  Alchemilla microcarpa Boiss. & Reut. -- not accepted
  Alchemilla minor Huds. -- not accepted
  Alchemilla mollis (Buser) Rothm. -- accepted -- lady's-mantle
  Alchemilla monticola Opiz -- accepted -- hairy lady's mantle
  Alchemilla obtusa var. comosa Brenner -- not accepted
  Alchemilla occidentalis Nutt. -- not accepted
  Alchemilla pastoralis Buser -- not accepted
  Alchemilla pratensis auct. non F.W. Schmidt -- not accepted
  Alchemilla sericata Rchb. -- accepted
  Alchemilla subcrenata Buser -- accepted -- broadtooth lady's mantle
  Alchemilla venosa Juz. -- accepted -- clustered lady's-mantle
  Alchemilla venosula Buser -- accepted -- boreal lady's mantle
  Alchemilla vestita (Buser) Raunk. -- not accepted
  Alchemilla vulgaris auct. non L. -- not accepted
  Alchemilla vulgaris var. alpestris F.W. Schmidt -- not accepted
  Alchemilla vulgaris var. comosa (Brenner) Fernald & Wiegand -- not accepted
  Alchemilla vulgaris var. filicaulis (Buser) Fernald & Wiegand -- not accepted
  Alchemilla vulgaris var. grandis Blytt -- not accepted
  Alchemilla vulgaris var. pastoralis (Buser) B. Boivin -- not accepted
  Alchemilla vulgaris var. vestita (Buser) Fernald & Wiegand -- not accepted
  Alchemilla vulgaris var. vulgaris auct. non L. -- not accepted
  Alchemilla vulgaris var. wichurae (Buser) B. Boivin -- not accepted
  Alchemilla wichurae (Buser) Stefansson -- accepted -- grassland lady's mantle
  Alchemilla xanthochlora Rothm. -- accepted -- dewcup
  Alchimilla Mill. -- not accepted
  Amelanchier Medik. -- accepted -- serviceberry
  Amelanchier alabamensis Britton -- not accepted
  Amelanchier alnifolia (Nutt.) Nutt. ex M. Roem. -- accepted -- juneberry, Pacific serviceberry, Saskatoon serviceberry, western serviceberry, western shadbush
  Amelanchier alnifolia ssp. florida (Lindl.) Hultén -- not accepted
  Amelanchier alnifolia var. alnifolia (Nutt.) Nutt. ex M. Roem. -- accepted -- Saskatoon service-berry, Saskatoon serviceberry
  Amelanchier alnifolia var. cusickii (Fernald) C.L. Hitchc. -- not accepted -- Cusick's serviceberry
  Amelanchier alnifolia var. humptulipensis (G.N. Jones) C.L. Hitchc. -- not accepted -- Saskatoon serviceberry
  Amelanchier alnifolia var. oreophila (A. Nelson) R.J. Davis -- not accepted
  Amelanchier alnifolia var. pallida (Greene) Jeps. -- not accepted
  Amelanchier alnifolia var. pumila (Torr. & A. Gray) C.K. Schneid. -- accepted -- dwarf serviceberry
  Amelanchier alnifolia var. semiintegrifolia (Hook.) C.L. Hitchc. -- accepted -- Pacific serviceberry, Saskatoon serviceberry
  Amelanchier alnifolia var. utahensis (Koehne) M.E. Jones -- not accepted
  Amelanchier amabilis Wiegand -- accepted
  Amelanchier arborea (F. Michx.) Fernald -- accepted -- Allegheny serviceberry, apple shadbush, common serviceberry, downy serviceberry, shadblow
  Amelanchier arborea ssp. laevis (Wiegand) S. McKay ex P. Landry -- not accepted
  Amelanchier arborea var. alabamensis (Britton) G.N. Jones -- not accepted -- Alabama serviceberry
  Amelanchier arborea var. arborea (F. Michx.) Fernald -- not accepted -- common serviceberry
  Amelanchier arborea var. austromontana (Ashe) H.E. Ahles -- not accepted -- downy serviceberry
  Amelanchier arborea var. cordifolia (Ashe) B. Boivin -- not accepted
  Amelanchier arborea var. laevis (Wiegand) H.E. Ahles -- not accepted
  Amelanchier asiatica (Siebold & Zucc.) Endl. ex Walp. -- accepted
  Amelanchier australis Standl. -- not accepted
  Amelanchier austromontana Ashe -- not accepted
  Amelanchier bakeri Greene -- not accepted
  Amelanchier bartramiana (Tausch) M. Roem. -- accepted -- mountain serviceberry, oblongfruit serviceberry
  Amelanchier basalticola Piper -- not accepted
  Amelanchier canadensis (L.) Medik. -- accepted -- Canadian serviceberry
  Amelanchier canadensis ssp. obovalis (Michx.) P. Landry -- not accepted
  Amelanchier canadensis var. canadensis (L.) Medik. -- accepted -- Canadian serviceberry
  Amelanchier canadensis var. obovalis (Michx.) Britton, Sterns & Poggenb. -- accepted -- coastal serviceberry
  Amelanchier canadensis var. pumila Torr. & A. Gray -- not accepted -- Canadian serviceberry
  Amelanchier canadensis var. subintegra Fernald -- not accepted
  Amelanchier covillei Standl. -- not accepted
  Amelanchier cuneata Piper -- not accepted
  Amelanchier cusickii Fernald -- accepted -- Cusick's serviceberry
  Amelanchier denticulata (Kunth) W.D.J. Koch -- not accepted
  Amelanchier fernaldii Wiegand -- accepted -- Fernald's serviceberry, Fernald's shadbush
  Amelanchier florida Lindl. -- not accepted
  Amelanchier florida var. cusickii (Fernald) M. Peck -- not accepted
  Amelanchier florida var. gracilis (A. Heller) M. Peck -- not accepted
  Amelanchier florida var. humptulipensis G.N. Jones -- not accepted
  Amelanchier gaspensis (Wiegand) Fernald & Weath. -- accepted -- Gaspé serviceberry
  Amelanchier glabra Greene -- not accepted
  Amelanchier goldmanii Wooton & Standl. -- not accepted
  Amelanchier gracilis A. Heller -- not accepted
  Amelanchier grandiflora (Wiegand) Wiegand -- not accepted
  Amelanchier humilis Wiegand -- accepted -- low service-berry, low serviceberry
  Amelanchier humilis var. campestris E.L. Nielsen -- not accepted
  Amelanchier humilis var. compacta E.L. Nielsen -- not accepted
  Amelanchier humilis var. exserrata E.L. Nielsen -- not accepted
  Amelanchier huronensis Wiegand -- not accepted
  Amelanchier interior E.L. Nielsen -- accepted -- Pacific serviceberry
  Amelanchier intermedia Spach -- accepted
  Amelanchier laevis Wiegand -- accepted -- Allegheny serviceberry
  Amelanchier laevis var. nitida (Wiegand) Fernald -- not accepted
  Amelanchier lamarckii F.G. Schroed. -- accepted
  Amelanchier lucida Fernald -- not accepted
  Amelanchier mormonica C.K. Schneid. -- not accepted
  Amelanchier mucronata E.L. Nielsen -- not accepted
  Amelanchier nantucketensis E.P. Bicknell -- accepted -- Nantucket serviceberry
  Amelanchier oblongifolia (Torr. & A. Gray) M. Roem. -- not accepted
  Amelanchier oblongifolia var. micropetala B.L. Rob. -- not accepted
  Amelanchier obovalis (Michx.) Ashe -- not accepted -- coastal serviceberry
  Amelanchier oligocarpa (Michx.) M. Roem. -- not accepted
  Amelanchier oreophila A. Nelson -- not accepted
  Amelanchier ovalis Medik. -- accepted
  Amelanchier ovalis var. semiintegrifolia Hook. -- not accepted
  Amelanchier pallida Greene -- not accepted -- pale serviceberry
  Amelanchier polycarpa Greene -- not accepted
  Amelanchier prunifolia Greene -- not accepted
  Amelanchier pumila (Torr. & A. Gray) Nutt. ex M. Roem. -- not accepted -- dwarf serviceberry
  Amelanchier racemosa Lindl. -- not accepted
  Amelanchier sanguinea (Pursh) DC. -- accepted -- Huron serviceberry, roundleaf juneberry, roundleaf serviceberry, shore shadbush
  Amelanchier sanguinea f. grandiflora Wiegand -- not accepted -- roundleaf serviceberry
  Amelanchier sanguinea var. gaspensis Wiegand -- not accepted
  Amelanchier sanguinea var. grandiflora (Wiegand) Rehder -- not accepted -- roundleaf serviceberry
  Amelanchier sanguinea var. sanguinea (Pursh) DC. -- not accepted -- roundleaf serviceberry
  Amelanchier spicata (Lam.) K. Koch -- accepted -- thicket shadbush
  Amelanchier stolonifera Wiegand -- not accepted -- running serviceberry
  Amelanchier stolonifera Wiegand -- not accepted
  Amelanchier utahensis Koehne -- accepted -- Utah serviceberry, Utah shadberry, western serviceberry
  Amelanchier utahensis ssp. covillei (Standl.) Clokey -- not accepted -- Coville's serviceberry
  Amelanchier utahensis var. covillei (Standl.) N.H. Holmgren -- not accepted -- Coville's serviceberry
  Amelanchier utahensis var. utahensis Koehne -- not accepted -- Utah serviceberry
  Amelanchier vulgaris Moench -- not accepted
  Amelanchier wiegandii E.L. Nielsen -- not accepted
  Amelanchier X grandiflora Rehder -- accepted
  Amelanchier X intermedia Spach (pro sp.) -- not accepted -- intermediate serviceberry
  Amelanchier X neglecta Eggl. ex G.N. Jones (pro sp.) -- accepted -- neglected serviceberry
  Amelanchier X quinti-martii Louis-Marie (pro sp.) -- accepted -- Quint-Mart's serviceberry
  Ametron Raf. -- not accepted
  Ametron pedatum (Sm.) Raf. -- not accepted
  Amygdalus communis L. -- not accepted
  Amygdalus dulcis Mill. -- not accepted
  Amygdalus glandulosa Hook. -- not accepted
  Amygdalus havardii W. Wight -- not accepted
  Amygdalus nana L. -- not accepted
  Amygdalus persica L. -- not accepted
  Aphanes L. -- accepted -- parsley piert
  Aphanes arvensis L. -- accepted -- field parsley piert
  Aphanes australis Rydb. -- accepted
  Aphanes indivisa (Buser) Rothm. -- not accepted
  Aphanes inexspectata W. Lippert -- not accepted
  Aphanes microcarpa (Boiss. & Reut.) Rothm. -- accepted -- slender parsley piert
  Aphanes occidentalis (Nutt.) Rydb. -- accepted
  Argentina Hill -- not accepted -- silverweed
  Argentina anserina (L.) Rydb. -- not accepted -- silverweed cinquefoil
  Argentina anserina ssp. egedii (Wormsk.) Á. Löve & Ritchie -- not accepted
  Argentina anserina var. concolor (Ser.) Rydb. -- not accepted
  Argentina argentea (L.) Rydb. -- not accepted
  Argentina egedii (Wormsk.) Rydb. -- not accepted -- Pacific silverweed
  Argentina egedii ssp. egedii (Wormsk.) Rydb. -- not accepted -- Pacific silverweed
  Argentina egedii ssp. groenlandica (Tratt.) Á. Löve -- not accepted -- Pacific silverweed
  Argentina occidentalis Rydb. -- not accepted
  Argentina subarctica Rydb. -- not accepted
  Armeniaca vulgaris Lam. -- not accepted
  Aronia Medik. -- accepted -- chokeberry
  Aronia alnifolia Nutt. -- not accepted
  Aronia arbutifolia (L.) Pers. -- accepted -- red chokeberry
  Aronia arbutifolia var. atropurpurea (Britton) Seymour -- not accepted
  Aronia arbutifolia var. brilliantissima hort. -- not accepted
  Aronia arbutifolia var. glabra Elliott -- not accepted
  Aronia arbutifolia var. nigra (Willd.) Seymour -- not accepted
  Aronia atropurpurea Britton -- not accepted
  Aronia floribunda (Lindl.) Sweet -- not accepted
  Aronia glabrescens Spach -- not accepted
  Aronia hybrida (Moench) Zabel -- not accepted
  Aronia melanocarpa (Michx.) Elliott -- accepted -- black chokeberry
  Aronia nigra (Willd.) Koehne -- not accepted
  Aronia prunifolia (Marshall) Rehder -- not accepted -- hybrid chokeberry
  Aronia pubens Spach -- not accepted
  Aronia pumila M. Roem. -- not accepted
  Aronia pyrifolia (Lam.) Pers. -- not accepted
  Aronia sargentii (Dippel) Zabel -- not accepted
  Aronia watsoniana M. Roem. -- not accepted
  Aronia X prunifolia (Marshall) Rehder (pro sp.) -- accepted -- purple chokeberry
  Aruncus L. -- accepted
  Aruncus acuminatus Rydb. -- not accepted
  Aruncus allegheniensis Rydb. -- not accepted
  Aruncus allegheniensis var. pubescens (Rydb.) Fernald -- not accepted
  Aruncus aruncus (L.) Karst. -- not accepted
  Aruncus dioicus (Walter) Fernald -- accepted -- bride's feathers, goatsbeard
  Aruncus dioicus var. acuminatus (Rydb.) H. Hara -- accepted -- bride's feathers
  Aruncus dioicus var. dioicus (Walter) Fernald -- accepted -- bride's feathers
  Aruncus dioicus var. pubescens (Rydb.) Fernald -- accepted -- bride's feathers
  Aruncus dioicus var. vulgaris (Maxim.) H. Hara -- accepted -- bride's feathers
  Aruncus pubescens Rydb. -- not accepted
  Aruncus sylvester Kostel. ex Maxim. -- not accepted
  Aruncus sylvester ssp. acuminatus (Rydb.) Jeps. -- not accepted
  Aruncus vulgaris (Maxim.) Raf. ex H. Hara -- not accepted
  Aucuparia subvestita (Greene) Nieuwl. -- not accepted
  Aucuparia sylvestris Medik. -- not accepted
  Batidaea sandbergii Greene -- not accepted
  Batidea (Dumort.) Greene -- not accepted
  Batidea acalyphacea Greene -- not accepted
  Batidea amplissima Greene -- not accepted
  Batidea arizonica Greene -- not accepted
  Batidea cataphracta Greene -- not accepted
  Batidea dacotica Greene -- not accepted
  Batidea elegantula Greene -- not accepted
  Batidea filipendula Greene -- not accepted
  Batidea heterodoxa Greene -- not accepted
  Batidea itascica Greene -- not accepted
  Batidea laetissima Greene -- not accepted
  Batidea peramoena Greene -- not accepted
  Batidea strigosa (Michx.) Greene -- not accepted
  Batidea subarctica Greene -- not accepted
  Batidea subcordata Greene -- not accepted
  Batidea unicolor Greene -- not accepted
  Batidea viburnifolia Greene -- not accepted
  Bossekia Neck. ex Greene -- not accepted
  Bossekia odorata (L.) Greene -- not accepted
  Cardiobatus Greene -- not accepted
  Cardiobatus nivalis (Douglas ex Hook.) Greene -- not accepted
  Celastrus myrtifolius L. -- not accepted
  Cerasus avium (L.) Moench -- not accepted
  Cerasus demissa Nutt. -- not accepted
  Cerasus demissa var. melanocarpa A. Nelson -- not accepted
  Cerasus emarginata Douglas ex Hook. -- not accepted
  Cerasus fruticosa (Pall.) Pall. -- not accepted
  Cerasus ilicifolia Nutt. ex Hook. & Arn. -- not accepted
  Cerasus laurocerasus (L.) Dum. Cours. -- not accepted
  Cerasus mahaleb (L.) Mill. -- not accepted
  Cerasus pensylvanica (L. f.) Loisel. -- not accepted
  Cerasus pumila (L.) Michx. -- not accepted
  Cerasus pumila ssp. besseyi (L.H. Bailey) W.A. Weber -- not accepted
  Cerasus tomentosa (Thunb.) Wall. ex T.T. Yu & C.L. Li -- not accepted
  Cercocarpus Kunth -- accepted -- mountain-mahogany
  Cercocarpus alnifolius Rydb. -- not accepted
  Cercocarpus argenteus Rydb. -- not accepted
  Cercocarpus arizonicus M.E. Jones -- not accepted
  Cercocarpus betulifolius var. blancheae C.K. Schneid. -- not accepted
  Cercocarpus betuloides Nutt. -- accepted -- birch-leaf mountain-mahogany
  Cercocarpus betuloides ssp. blancheae (C.K. Schneid.) Thorne -- not accepted
  Cercocarpus betuloides ssp. macrourus (Rydb.) A.E. Murray -- not accepted
  Cercocarpus betuloides ssp. traskiae (Eastw.) A.E. Murray -- not accepted
  Cercocarpus betuloides var. betuloides Nutt. -- accepted -- birch-leaf mountain-mahogany
  Cercocarpus betuloides var. blancheae (C.K. Schneid.) Little -- accepted -- island mountain-mahogany
  Cercocarpus betuloides var. macrourus (Rydb.) Jeps. -- accepted -- Klamath mountain-mahogany
  Cercocarpus betuloides var. multiflorus Jeps. -- not accepted
  Cercocarpus betuloides var. traskiae (Eastw.) Dunkle -- not accepted
  Cercocarpus breviflorus A. Gray -- accepted -- hairy mountain-mahogany
  Cercocarpus breviflorus var. eximius C.K. Schneid. -- not accepted
  Cercocarpus douglasii Rydb. -- not accepted
  Cercocarpus eximius (C.K. Schneid.) Rydb. -- not accepted
  Cercocarpus hypoleucus Rydb. -- not accepted
  Cercocarpus intricatus S. Watson -- not accepted -- littleleaf mountain-mahogany
  Cercocarpus intricatus var. intricatus S. Watson -- not accepted -- littleleaf mountain-mahogany
  Cercocarpus intricatus var. villosus C.K. Schneid. -- not accepted -- littleleaf mountain-mahogany
  Cercocarpus ledifolius Nutt. -- accepted -- curl-leaf mountain-mahogany, curlleaf cercocarpus
  Cercocarpus ledifolius var. hypoleucus (Rydb.) M. Peck -- not accepted
  Cercocarpus ledifolius var. intercedens C.K. Schneid. -- not accepted -- curl-leaf mountain-mahogany
  Cercocarpus ledifolius var. intermontanus N.H. Holmgren -- accepted -- curl-leaf mountain-mahogany
  Cercocarpus ledifolius var. intricatus (S. Watson) M.E. Jones -- accepted -- littleleaf mountain-mahogany
  Cercocarpus ledifolius var. ledifolius Nutt. -- accepted -- curl-leaf mountain-mahogany
  Cercocarpus macrourus Rydb. -- not accepted
  Cercocarpus minutiflorus Abrams -- accepted -- smooth mountain-mahogany
  Cercocarpus montanus Raf. -- accepted -- alderleaf cercocarpus, alderleaf mountain-mahogany, birchleaf mountain-mahogany, mountain-mahogany, true mountain-mahogany
  Cercocarpus montanus ssp. blancheae (C.K. Schneid.) Thorne -- not accepted
  Cercocarpus montanus var. argenteus (Rydb.) F.L. Martin -- not accepted -- silver birchleaf mountain-mahogany, silver mountain-mahogany
  Cercocarpus montanus var. blancheae (C.K. Schneid.) F.L. Martin -- not accepted -- island mountain-mahogany
  Cercocarpus montanus var. flabellifolius (Rydb.) Kearney & Peebles -- not accepted
  Cercocarpus montanus var. glaber (S. Watson) F.L. Martin -- not accepted -- birchleaf mountain-mahogany
  Cercocarpus montanus var. macrourus (Rydb.) F.L. Martin -- not accepted -- Klamath mountain-mahogany
  Cercocarpus montanus var. minutiflorus (Abrams) F.L. Martin -- not accepted -- smooth mountain-mahogany
  Cercocarpus montanus var. montanus Raf. -- not accepted -- alderleaf mountain-mahogany, Arizona mountain-mahogany, birchleaf mountain-mahogany
  Cercocarpus montanus var. paucidentatus (S. Watson) F.L. Martin -- not accepted -- hairy mountain-mahogany
  Cercocarpus montanus var. traskiae (Eastw.) F.L. Martin -- not accepted
  Cercocarpus parvifolius Nutt. ex Hook. & Arn. -- not accepted
  Cercocarpus parvifolius var. glaber S. Watson -- not accepted
  Cercocarpus parvifolius var. hirsutissimus C.K. Schneid. -- not accepted
  Cercocarpus parvifolius var. minimus C.K. Schneid. -- not accepted
  Cercocarpus parvifolius var. paucidentatus S. Watson -- not accepted
  Cercocarpus rotundifolius Rydb. -- not accepted
  Cercocarpus traskiae Eastw. -- accepted -- Catalina cercocarpus, Catalina Island mountain-mahogany
  Chaenomeles Lindl. -- accepted -- flowering quince
  Chaenomeles japonica (Thunb.) Lindl. ex Spach -- accepted -- Japanese flowering quince, Maule's quince
  Chaenomeles lagenaria (Loisel.) Koidz. -- not accepted
  Chaenomeles sinensis (Thouin) Koehne -- accepted
  Chaenomeles speciosa (Sweet) Nakai -- accepted -- flowering quince
  Chaenomeles X superba (Frahm) Rehder -- accepted -- quince
  Chamaebatia Benth. -- accepted -- mountain misery
  Chamaebatia australis (Brandegee) Abrams -- accepted -- southern mountain misery
  Chamaebatia foliolosa Benth. -- accepted -- mountain misery
  Chamaebatia foliolosa var. australis Brandegee -- not accepted -- southern mountain misery
  Chamaebatiaria (Porter ex W.H. Brewer & S. Watson) Maxim. -- accepted -- desert sweet, fernbush
  Chamaebatiaria millefolium (Torr.) Maxim. -- accepted -- desert sweet, fernbush
  Chamaemorus Greene -- not accepted
  Chamaemorus anglica Greene -- not accepted
  Chamaemorus norvegica Greene -- not accepted
  Chamaerhodos Bunge -- accepted -- little rose
  Chamaerhodos erecta (L.) Bunge -- accepted -- little rose, little-rose
  Chamaerhodos erecta ssp. erecta (L.) Bunge -- not accepted -- little rose
  Chamaerhodos erecta ssp. nuttallii (Pickering ex Rydb.) Hultén -- not accepted -- chamaerhodos, little-rose, Nuttall's little rose
  Chamaerhodos erecta var. parviflora (Nutt.) C.L. Hitchc. -- not accepted
  Chamaerhodos nuttallii Pickering ex Rydb. -- not accepted
  Chamaerhodos nuttallii var. keweenawensis Fernald -- not accepted
  Choenomeles Lindl. -- not accepted -- flowering quince
  Choenomeles japonica (Thunb.) Lindl. ex Spach -- not accepted -- lesser flowering quince
  Choenomeles lagenaria (Loisel.) Koidz. -- not accepted
  Choenomeles speciosa (Sweet) Nakai -- not accepted -- Japanese flowering quince
  Coleogyne Torr. -- accepted -- blackbrush
  Coleogyne ramosissima Torr. -- accepted -- blackbrush
  Comarella multifoliolata (Torr.) Rydb. -- not accepted
  Comarella sabulosa (M.E. Jones) Rydb. -- not accepted
  Comarobatia Greene -- not accepted
  Comarobatia lasiococca (A. Gray) Greene -- not accepted
  Comaropsis pedata (Sm.) DC. -- not accepted
  Comarum L. -- accepted
  Comarum palustre L. -- accepted -- purple marshlocks
  Comarum palustre ssp. angustifolium (Raf.) Tzvelev -- not accepted
  Comarum palustre ssp. arcticum (Gand.) Tzvelev -- not accepted
  Corchorus japonicus (L.) Houtt. -- not accepted
  Corchorus scandens Thunb. -- not accepted
  Cotoneaster Medik. -- accepted
  Cotoneaster acuminatus Lindl. -- accepted
  Cotoneaster acutifolius Turcz. -- accepted -- Peking cotoneaster
  Cotoneaster acutifolius var. villosulus Rehder & E.H. Wilson -- not accepted
  Cotoneaster adpressus Bois -- accepted -- creeping cotoneaster
  Cotoneaster affinis Lindl. -- accepted
  Cotoneaster affinis var. bacillaris (Wall. ex Lindl.) C.K. Schneid. -- not accepted
  Cotoneaster allochrous Pojark. -- accepted
  Cotoneaster ambiguus Rehder & E.H. Wilson -- accepted
  Cotoneaster amoenus E.H. Wilson -- not accepted
  Cotoneaster angustifolius Franch. -- not accepted
  Cotoneaster apiculatus Rehder & E.H. Wilson -- accepted -- cranberry cotoneaster
  Cotoneaster atropurpureus Flinck & B. Hylmö -- accepted -- prostrate cotoneaster, purple-flowered cotoneaster
  Cotoneaster bacillaris Wall. ex Lindl. -- accepted
  Cotoneaster bullatus Bois -- accepted -- hollyberry cotoneaster
  Cotoneaster bullatus f. floribundus (Stapf) Rehder & E.H. Wilson -- not accepted
  Cotoneaster bullatus var. floribundus (Stapf) L.T. Lu & A.R. Brach -- accepted
  Cotoneaster bullatus var. macrophyllus Rehder & E.H. Wilson -- not accepted
  Cotoneaster buxifolius Wall. ex Lindl. -- accepted
  Cotoneaster buxifolius f. cochleatus Franch. -- not accepted
  Cotoneaster buxifolius f. vellaeus Franch. -- not accepted
  Cotoneaster calocarpus (Rehder & E.H. Wilson) Flinck & B. Hylmö -- not accepted
  Cotoneaster cochleatus (Franch.) G. Klotz -- accepted
  Cotoneaster congestus Baker -- not accepted
  Cotoneaster conspicuus (Messel) Messel -- accepted
  Cotoneaster conspicuus var. decorus P.G. Russel -- not accepted
  Cotoneaster conspicuus var. nanus G. Klotz -- not accepted
  Cotoneaster crenulatus (D. Don) K. Koch -- not accepted
  Cotoneaster crispii Exell (pro hybr.) -- accepted -- Crisp's cotoneaster
  Cotoneaster dammeri C.K. Schneid. -- accepted -- bearberry cotoneaster
  Cotoneaster dammeri var. radicans (Dammer ex C.K. Schneid.) C.K. Schneid. -- accepted
  Cotoneaster denticulatus Kunth -- not accepted
  Cotoneaster dielsianus E. Pritz. ex Diels -- accepted -- Diels' cotoneaster
  Cotoneaster dielsianus var. elegans Rehder & E.H. Wilson -- accepted
  Cotoneaster distichus var. tongolensis C.K. Schneid. -- not accepted
  Cotoneaster divaricatus Rehder & E.H. Wilson -- accepted -- spreading cotoneaster
  Cotoneaster fangianus T.T. Yu -- accepted -- Fang's cotoneaster
  Cotoneaster foveolatus Rehder & E.H. Wilson -- accepted
  Cotoneaster franchetii Bois -- accepted -- Franchet's cotoneaster, orange cotoneaster
  Cotoneaster franchetii var. sternianus Turrill -- not accepted
  Cotoneaster frigidus Wall. ex Lindl. -- accepted -- tree cotoneaster
  Cotoneaster gamblei G. Klotz -- accepted -- Gamble's cotoneaster
  Cotoneaster glaucophyllus Franch. -- accepted
  Cotoneaster glaucophyllus var. meiophyllus W.W. Sm. -- accepted
  Cotoneaster harrovianus E.H. Wilson -- accepted
  Cotoneaster harrysmithii Flinck & B. Hylmö -- accepted
  Cotoneaster hebephyllus Diels -- accepted
  Cotoneaster hebephyllus var. fulvidus W.W. Sm. -- accepted
  Cotoneaster hebephyllus var. monopyrenus W.W. Sm. -- not accepted
  Cotoneaster henryanus (C.K. Schneid.) Rehder & E.H. Wilson -- not accepted
  Cotoneaster hissaricus Pojark. -- accepted
  Cotoneaster hjelmqvistii Flinck & B. Hylmö -- accepted -- Hjelmqvist's cotoneaster
  Cotoneaster hodjingensis G. Klotz -- accepted -- earthquake cotoneaster
  Cotoneaster horizontalis Decne. -- accepted -- rock cotoneaster, rock-spray, rockspray cotoneaster
  Cotoneaster horizontalis var. wilsonii Havemeyer ex E.H. Wilson -- not accepted
  Cotoneaster hupehensis Rehder & E.H. Wilson -- not accepted -- Hupeh cotoneaster
  Cotoneaster ignavus E.L. Wolf -- accepted
  Cotoneaster insignis Pojark. -- accepted
  Cotoneaster integerrimus Medik. -- accepted
  Cotoneaster integrifolius (Roxb.) G. Klotz -- accepted -- entire-leaved cotoneaster
  Cotoneaster karatavicus Pojark. -- accepted
  Cotoneaster koidzumii Hayata -- not accepted
  Cotoneaster lacteus W.W. Sm. -- accepted -- milkflower cotoneaster
  Cotoneaster linearifolius (G. Klotz) G. Klotz -- not accepted
  Cotoneaster lucidus Schltdl. -- accepted -- shiny cotoneaster
  Cotoneaster magnificus J. Fryer & B. Hylmö -- accepted -- magnificent cotoneaster
  Cotoneaster melanocarpus Lodd., G. Lodd. & W. Lodd. -- accepted
  Cotoneaster melanocarpus var. laxiflorus (Jacq. ex Lindl.) C.K. Schneid. -- not accepted
  Cotoneaster microphyllus Wall. ex Lindl. -- accepted -- smallleaf cotoneaster
  Cotoneaster microphyllus var. cochleatus (Franch.) Rehder & E.H. Wilson -- not accepted
  Cotoneaster microphyllus var. conspicuus Messel -- not accepted
  Cotoneaster microphyllus var. glacialis Hook. f. ex Wenz. -- accepted
  Cotoneaster microphyllus var. melanotrichus (Franch.) Rehder -- not accepted
  Cotoneaster miniatus (Rehder & E.H. Wilson) Flinck & B. Hylmö -- accepted -- orange-drop cotoneaster
  Cotoneaster monopyrenus (W.W. Sm.) Flinck & B. Hylmö -- accepted -- one-stoned cotoneaster
  Cotoneaster moupinensis Franch. -- accepted
  Cotoneaster moupinensis f. floribundus Stapf -- not accepted
  Cotoneaster multiflora Bunge -- not accepted
  Cotoneaster multiflorus Bunge -- accepted
  Cotoneaster multiflorus var. calocarpus Rehder & E.H. Wilson -- accepted
  Cotoneaster nanus (G. Klotz) G. Klotz -- not accepted
  Cotoneaster nebrodensis (Guss.) K. Koch -- accepted
  Cotoneaster niger (Wahlb.) Fr. -- not accepted -- darkseed cotoneaster
  Cotoneaster niger var. laxiflorus (Jacq. ex Lindl.) Dippel -- not accepted
  Cotoneaster nitens Rehder & E.H. Wilson -- accepted -- few-flowered cotoneaster, Kokonor cotoneaster
  Cotoneaster nitidifolius C. Marquand -- accepted
  Cotoneaster nitidus Jacq. -- accepted
  Cotoneaster nummularius Fisch. & C.A. Mey. -- accepted
  Cotoneaster obovatus Wall. ex Dunn -- accepted
  Cotoneaster obscurus Rehder & E.H. Wilson -- accepted
  Cotoneaster oliganthus Pojark. -- accepted
  Cotoneaster pannosus Franch. -- accepted -- firethorn, silverleaf cotoneaster
  Cotoneaster permutatus G. Klotz -- not accepted
  Cotoneaster pyracantha (L.) Spach -- not accepted
  Cotoneaster qungbixiensis J. Fryer & B. Hylmö -- accepted -- Cangshan cotoneaster
  Cotoneaster racemiflorus (Desf.) K. Koch -- accepted
  Cotoneaster racemiflorus var. royleanus Dippel -- accepted
  Cotoneaster racemiflorus var. soongoricus (Regel) C.K. Schneid. -- not accepted
  Cotoneaster racemiflorus var. veitchii Rehder & E.H. Wilson -- not accepted
  Cotoneaster rehderi Pojark. -- accepted -- bullate cotoneaster
  Cotoneaster reticulatus Rehder & E.H. Wilson -- accepted
  Cotoneaster rhytidophyllus Rehder & E.H. Wilson -- accepted
  Cotoneaster roseus Edgew. -- accepted
  Cotoneaster rotundifolius Wall. ex Lindl. -- accepted
  Cotoneaster rubens W.W. Sm. -- accepted
  Cotoneaster rugosus E. Pritz. -- not accepted
  Cotoneaster salicifolius Franch. -- accepted
  Cotoneaster salicifolius var. floccosus Rehder & E.H. Wilson -- not accepted
  Cotoneaster salicifolius var. rugosus (E. Pritz.) Rehder & E.H. Wilson -- accepted
  Cotoneaster saxatilis Pojark. -- accepted
  Cotoneaster sikangensis Flinck & B. Hylmö -- not accepted
  Cotoneaster sikkimensis hort. ex Wien. -- accepted
  Cotoneaster silvestrii Pamp. -- accepted
  Cotoneaster simonsii Baker -- accepted -- Simons' cotoneaster
  Cotoneaster soongoricus (Regel & Herder) Popov -- accepted
  Cotoneaster splendens Flinck & B. Hylmö -- not accepted
  Cotoneaster sternianus (Turrill) Boom -- accepted -- Stern's cotoneaster
  Cotoneaster tengyuehensis J. Fryer & B. Hylmö -- accepted
  Cotoneaster thymifolius var. cochleatus (Franch.) Franch. -- not accepted
  Cotoneaster tomentosus (Aiton) Lindl. -- not accepted
  Cotoneaster transens G. Klotz -- accepted -- McLarens' cotoneaster
  Cotoneaster turbinatus Craib -- accepted
  Cotoneaster uniflorus Bunge -- accepted
  Cotoneaster vestitus (W.W. Sm.) Flinck & B. Hylmö -- accepted -- vested cotoneaster, woolly cotoneaster
  Cotoneaster villosulus (Rehder & E.H. Wilson) Flinck & B. Hylmö -- accepted -- Taiping cotoneaster
  Cotoneaster wardii W.W. Sm. -- accepted
  Cotoneaster X crispii Exell -- not accepted -- Crisp's cotoneaster
  Cotoneaster X suecicus G. Klotz -- accepted -- Swedish cotoneaster
  Cotoneaster X watereri Exell -- accepted -- Waterer's cotoneaster
  Cotoneaster zabelii C.K. Schneid. -- accepted
  Cotoneaster zabelii var. miniatus Rehder & E.H. Wilson -- not accepted
  Cotoneaster zeravschanicus Pojark. -- accepted
  Cowania D. Don -- not accepted
  Cowania alba Goodding -- not accepted
  Cowania ericifolia Torr. ex A. Gray -- not accepted
  Cowania mexicana D. Don -- not accepted
  Cowania mexicana var. dubia Brandegee -- not accepted
  Cowania mexicana var. stansburiana (Torr.) Jeps. -- not accepted
  Cowania mexicana var. stansburyana (Torr.) Jeps. -- not accepted
  Cowania stansburiana Torr. -- not accepted
  Cowania stansburyana Torr. -- not accepted
  Cowania subintegra Kearney -- not accepted
  Crataegus L. -- accepted -- aubépines, hawthorns
  Crataegus abbreviata Sarg. -- not accepted
  Crataegus aboriginum Sarg. -- not accepted
  Crataegus acanthacolonensis Laughlin -- not accepted
  Crataegus acutifolia Sarg. -- not accepted
  Crataegus acutifolia var. insignis (Sarg.) E.J. Palmer -- not accepted
  Crataegus acutiserrata Kruschke -- not accepted
  Crataegus aemula Beadle -- accepted -- Rome hawthorn
  Crataegus aestivalis (Walter) Torr. & A. Gray -- accepted -- may hawthorn
  Crataegus alabamensis Beadle -- accepted
  Crataegus albanthera Sarg. -- not accepted
  Crataegus albicans Ashe -- not accepted
  Crataegus algens Beadle -- not accepted
  Crataegus allegheniensis Beadle -- accepted
  Crataegus alma Beadle -- not accepted -- bountiful hawthorn
  Crataegus alnorum Sarg. -- not accepted
  Crataegus altaica (Loudon) Lange -- not accepted
  Crataegus ambigua C.A. Mey. ex A.K. Becker -- accepted
  Crataegus ambitiosa Sarg. -- accepted -- Grand Rapids hawthorn
  Crataegus ambrosia Sarg. -- not accepted
  Crataegus amicalis Sarg. -- not accepted
  Crataegus amnicola Beadle -- not accepted
  Crataegus anamesa Sarg. -- accepted -- Fort Bend hawthorn
  Crataegus ancisa Beadle -- accepted -- Mississippi hawthorn
  Crataegus annosa Beadle -- accepted -- Phoenix City hawthorn
  Crataegus antimina Sarg. -- accepted
  Crataegus antiplasta Sarg. -- not accepted
  Crataegus apiomorpha Sarg. -- not accepted -- Fort Sheridan hawthorn
  Crataegus apiomorpha var. cyanophylla (Sarg.) Kruschke -- not accepted
  Crataegus aprica Beadle -- accepted -- sunny hawthorn
  Crataegus aquacervensis J.B. Phipps & O'Kennon -- accepted -- Elkwater hawthorn
  Crataegus arborea Beadle -- not accepted -- Montgomery hawthorn
  Crataegus arborea var. ohioensis (Sarg.) Kruschke -- not accepted
  Crataegus arborescens Elliott -- accepted
  Crataegus arbutifolia W.T. Aiton -- not accepted
  Crataegus arcana Beadle -- accepted -- Carolina hawthorn
  Crataegus ardula Sarg. -- not accepted
  Crataegus arkansana Sarg. -- not accepted
  Crataegus arnoldiana Sarg. -- not accepted
  Crataegus arrogans Beadle -- not accepted -- Dixie hawthorn
  Crataegus ashei Beadle -- accepted -- Ashe's hawthorn
  Crataegus aspera Sarg. -- not accepted
  Crataegus asperifolia Sarg. -- not accepted
  Crataegus ater Ashe -- accepted -- Nashville hawthorn
  Crataegus atrorubens Ashe -- accepted
  Crataegus atrovirens J.B. Phipps & O'Kennon -- accepted
  Crataegus attrita Beadle -- accepted
  Crataegus aulica Sarg. -- not accepted
  Crataegus austromontana Beadle -- accepted -- valley head hawthorn
  Crataegus azarolus L. -- accepted -- azarole, Mediterranean-medlar
  Crataegus balkwillii Sarg. -- not accepted
  Crataegus barrettiana Sarg. -- not accepted
  Crataegus basilica Beadle -- not accepted
  Crataegus beadlei Ashe -- accepted -- Beadle's hawthorn
  Crataegus beata Sarg. -- accepted -- Dunbar's hawthorn
  Crataegus beata var. opulens (Sarg.) E.J. Palmer -- not accepted
  Crataegus beckwithiae Sarg. -- not accepted
  Crataegus berberifolia Torr. & A. Gray -- accepted -- barberry hawthorn, barberry-leaved hawthorn
  Crataegus berberifolia var. berberifolia Torr. & A. Gray -- accepted -- barberry hawthorn
  Crataegus berberifolia var. edita (Sarg.) E.J. Palmer -- not accepted
  Crataegus berberifolia var. engelmannii (Sarg.) Eggl. -- accepted -- barberry hawthorn
  Crataegus bicknellii Eggl. -- accepted
  Crataegus biltmoreana Beadle -- accepted
  Crataegus biltmoreana var. stonei (Sarg.) Kruschke -- not accepted
  Crataegus bisulcata Ashe -- not accepted
  Crataegus blanda Sarg. -- not accepted
  Crataegus blothra Laughlin -- not accepted
  Crataegus bona Sarg. -- not accepted -- Berks County hawthorn
  Crataegus boyntonii Beadle -- not accepted
  Crataegus brachyacantha Sarg. & Engelm. -- accepted -- blueberry hawthorn
  Crataegus brachyacantha f. leucocarpa Sarg. -- not accepted
  Crataegus brachyphylla Sarg. -- accepted
  Crataegus brainerdii Sarg. -- accepted -- aubépine de Brainerd, Brainerd's hawthorn
  Crataegus brainerdii var. asperifolia (Sarg.) Eggl. -- not accepted
  Crataegus brainerdii var. cyclophylla (Sarg.) E.J. Palmer -- not accepted
  Crataegus brainerdii var. egglestonii (Sarg.) B.L. Rob. -- not accepted
  Crataegus brainerdii var. scabrida (Sarg.) Eggl. -- not accepted
  Crataegus brazoria Sarg. -- accepted -- Brazos hawthorn
  Crataegus brazoria var. brazoria Sarg. -- accepted -- Brazos hawthorn
  Crataegus brazoria var. viburnifolia (Sarg.) J.B. Phipps -- accepted -- sawtooth hawthorn
  Crataegus brittonii Eggl. -- accepted -- Britton's hawthorn
  Crataegus brumalis Ashe -- not accepted
  Crataegus brunetiana Sarg. -- not accepted
  Crataegus brunetiana var. fernaldii (Sarg.) E.J. Palmer -- not accepted
  Crataegus buckleyi Beadle -- accepted
  Crataegus bullatus Boiss. -- accepted -- hawthorn
  Crataegus bushii Sarg. -- not accepted
  Crataegus caesa Ashe -- not accepted
  Crataegus caesariata Sarg. -- not accepted
  Crataegus caliciglabrata Schuette -- not accepted
  Crataegus calophylla Sarg. -- not accepted
  Crataegus calpodendron (Ehrh.) Medik. -- accepted -- pear hawthorn
  Crataegus calpodendron var. gigantea Kruschke -- not accepted
  Crataegus calpodendron var. globosa (Sarg.) E.J. Palmer -- not accepted
  Crataegus calpodendron var. hispida (Sarg.) E.J. Palmer -- not accepted
  Crataegus calpodendron var. hispidula (Sarg.) E.J. Palmer -- not accepted
  Crataegus calpodendron var. microcarpa (Chapm.) E.J. Palmer -- not accepted
  Crataegus calpodendron var. mollicula (Sarg.) E.J. Palmer -- not accepted
  Crataegus calpodendron var. obesa (Ashe) E.J. Palmer -- not accepted
  Crataegus canadensis Sarg. -- not accepted -- Canadian hawthorn
  Crataegus canbyi Sarg. -- not accepted
  Crataegus candens Sarg. -- not accepted
  Crataegus carrollensis Sarg. -- accepted -- Eureka Springs hawthorn
  Crataegus castlegarensis J.B. Phipps & O'Kennon -- accepted -- Castlegar hawthorn
  Crataegus cavaleriei H. Lév. & Vaniot -- not accepted
  Crataegus celsa Sarg. -- not accepted
  Crataegus cerronis A. Nelson -- not accepted
  Crataegus chadsfordiana Sarg. -- not accepted
  Crataegus champlainensis Sarg. -- not accepted
  Crataegus chapmanii (Beadle) Ashe -- not accepted
  Crataegus cherokeensis Sarg. -- not accepted
  Crataegus chlorocarpa Lenne & K. Koch -- not accepted
  Crataegus chlorosarca Maxim. -- accepted
  Crataegus chlorosarca var. atrocarpa (E.L. Wolf) Cinovskis -- accepted
  Crataegus choriophylla Sarg. -- not accepted
  Crataegus chrysocarpa Ashe -- accepted -- fireberry hawthorn
  Crataegus chrysocarpa var. aboriginum (Sarg.) Kruschke -- not accepted
  Crataegus chrysocarpa var. bicknellii (Eggl.) E.J. Palmer -- not accepted
  Crataegus chrysocarpa var. blanchardii (Sarg.) J.B. Phipps -- accepted
  Crataegus chrysocarpa var. caesariata (Sarg.) E.J. Palmer -- not accepted
  Crataegus chrysocarpa var. chrysocarpa Ashe -- accepted -- fireberry hawthorn, red haw, red-fruited hawthorn, scarlet hawthorn
  Crataegus chrysocarpa var. faxonii (Sarg.) Eggl. -- accepted
  Crataegus chrysocarpa var. longiacuminata Kruschke -- not accepted
  Crataegus chrysocarpa var. phoenicea E.J. Palmer -- accepted
  Crataegus chrysocarpa var. piperi (Britton) Kruschke -- accepted -- Piper's hawthorn
  Crataegus chrysocarpa var. praecox (Sarg.) J.B. Phipps -- accepted -- red haw
  Crataegus chrysocarpa var. rotundifolia (Moench) Sarg. -- not accepted
  Crataegus chrysocarpa var. subrotundifolia (Sarg.) J.B. Phipps -- accepted
  Crataegus chrysocarpa var. vernonensis J.B. Phipps & O'Kennon -- accepted
  Crataegus chrysocarpa var. vigintistamina J.B. Phipps -- accepted
  Crataegus cibaria Beadle -- not accepted
  Crataegus coccinata Sarg. -- not accepted
  Crataegus coccinea L. -- accepted -- red haw, red-fruited hawthorn, scarlet hawthorn
  Crataegus coccinea L. -- not accepted
  Crataegus coccinea var. coccinea L. -- accepted -- scarlet hawthorn
  Crataegus coccinea var. fulleriana (Sarg.) J.A. Macklin & J.B. Phipps -- accepted
  Crataegus coccinea var. pringlei (Sarg.) J.A. Macklin & J.B. Phipps -- accepted -- Pringle's hawthorn
  Crataegus coccinioides Ashe -- accepted -- Kansas hawthorn
  Crataegus coccinioides var. locuples (Sarg.) Kruschke -- not accepted
  Crataegus cocksii Sarg. -- not accepted
  Crataegus cognata Sarg. -- accepted
  Crataegus coleae Sarg. -- accepted -- Cole's hawthorn
  Crataegus collicola Ashe -- accepted
  Crataegus collina Chapm. -- accepted -- Hillside hawthorn
  Crataegus collina var. collicola (Ashe) E.J. Palmer -- not accepted
  Crataegus collina var. collina Chapm. -- accepted
  Crataegus collina var. hirtiflora (Sarg.) J.B. Phipps -- accepted
  Crataegus collina var. lettermanii (Sarg.) Eggl. -- accepted
  Crataegus collina var. secta (Sarg.) E.J. Palmer -- not accepted
  Crataegus collina var. sordida (Sarg.) Eggl. -- accepted
  Crataegus collina var. succincta (Sarg.) E.J. Palmer -- accepted
  Crataegus colonica Beadle -- accepted
  Crataegus columbiana Howell -- not accepted -- Columbia hawthorn
  Crataegus columbiana var. chrysocarpa (Ashe) Dorn -- not accepted
  Crataegus columbiana var. columbiana Howell -- not accepted -- Columbian hawthorn
  Crataegus columbiana var. occidentalis (Britton) Dorn -- not accepted
  Crataegus columbiana var. piperi (Britton) Eggl. -- not accepted
  Crataegus compacta Sarg. -- accepted -- clustered hawthorn
  Crataegus compta Sarg. -- not accepted -- adorned hawthorn
  Crataegus condigna Beadle -- accepted -- river junction hawthorn
  Crataegus confragosa Sarg. -- not accepted
  Crataegus congesta Sarg. -- not accepted
  Crataegus consanguinea Beadle -- not accepted -- Tallahassee hawthorn
  Crataegus conspecta Sarg. -- not accepted
  Crataegus consueta Sarg. -- not accepted
  Crataegus contrita Beadle -- accepted -- southern hawthorn
  Crataegus cordata (Mill.) Aiton -- not accepted
  Crataegus corusca Sarg. -- accepted -- shiningbranch hawthorn
  Crataegus corusca var. gigantea Kruschke -- not accepted
  Crataegus corusca var. hillii (Sarg.) Kruschke -- not accepted
  Crataegus crassifolia Sarg. -- not accepted
  Crataegus crawfordiana Sarg. -- not accepted
  Crataegus craytonii Beadle -- accepted -- Crayton's hawthorn
  Crataegus crenulata (D. Don) Roxb. -- not accepted
  Crataegus crocea Beadle -- accepted
  Crataegus crocina Beadle -- not accepted
  Crataegus crus-galli L. -- accepted -- aubépine ergot-de-coq, bush hawthorn, cockspur hawthorn
  Crataegus crus-galli var. barrettiana (Sarg.) E.J. Palmer -- not accepted -- cockspur hawthorn
  Crataegus crus-galli var. bellica (Sarg.) E.J. Palmer -- not accepted -- cockspur hawthorn
  Crataegus crus-galli var. capillata Sarg. -- not accepted -- cockspur hawthorn
  Crataegus crus-galli var. crus-galli L. -- accepted -- cockspur hawthorn
  Crataegus crus-galli var. exigua (Sarg.) Eggl. -- not accepted -- cockspur hawthorn
  Crataegus crus-galli var. leptophylla (Sarg.) E.J. Palmer -- not accepted -- cockspur hawthorn
  Crataegus crus-galli var. macra (Beadle) E.J. Palmer -- not accepted -- cockspur hawthorn
  Crataegus crus-galli var. oblongata Sarg. -- not accepted -- cockspur hawthorn
  Crataegus crus-galli var. pachyphylla (Sarg.) E.J. Palmer -- not accepted -- cockspur hawthorn
  Crataegus crus-galli var. pyracanthifolia Aiton -- accepted -- cockspur hawthorn
  Crataegus crus-galli var. regalis (Beadle) J.B. Phipps -- accepted -- cockspur hawthorn
  Crataegus cuneata Siebold & Zucc. -- accepted -- Chinese hawthorn, Nippon hawthorn
  Crataegus cuneiformis (Marshall) Eggl. -- not accepted
  Crataegus cupressocollina J.B. Phipps & O'Kennon -- accepted -- Cypress Hills hawthorn
  Crataegus curvisepala auct. non Lindm. -- not accepted -- English hawthorn
  Crataegus cyclophylla Sarg. -- not accepted
  Crataegus dahurica Koehne ex C.K. Schneid. -- accepted
  Crataegus dallasiana Sarg. -- accepted -- Dallas hawthorn
  Crataegus danielsii E.J. Palmer -- not accepted
  Crataegus delawarensis Sarg. -- accepted
  Crataegus delosii Sarg. -- not accepted
  Crataegus deltoides Ashe -- not accepted
  Crataegus denaria Beadle -- not accepted
  Crataegus densiflora Sarg. -- not accepted
  Crataegus desertorum Sarg. -- not accepted
  Crataegus desueta Sarg. -- accepted -- New York hawthorn
  Crataegus desueta var. wausaukiensis Kruschke -- not accepted
  Crataegus dilatata Sarg. -- not accepted -- black hawthorn, broadleaf hawthorn
  Crataegus discolor Sarg. -- not accepted
  Crataegus disjuncta Sarg. -- not accepted
  Crataegus dispar Beadle -- accepted -- Aiken hawthorn
  Crataegus disperma Ashe -- accepted -- spreading hawthorn
  Crataegus disperma var. peoriensis (Sarg.) Kruschke -- not accepted
  Crataegus dispessa Ashe -- accepted -- mink hawthorn
  Crataegus dissona Sarg. -- not accepted -- northern hawthorn
  Crataegus dissona var. bellula (Sarg.) Kruschke -- not accepted
  Crataegus distincta Kruschke -- accepted -- distinct hawthorn
  Crataegus divida Sarg. -- not accepted
  Crataegus divisa Sarg. -- not accepted
  Crataegus doddsii Ramaley -- not accepted
  Crataegus dodgei Ashe -- accepted -- Dodge's hawthorn
  Crataegus dodgei var. flavida (Sarg.) P.G. Sm. & Phipps -- not accepted
  Crataegus dodgei var. lumaria (Ashe) Sarg. -- not accepted
  Crataegus dodgei var. rotundata (Sarg.) Kruschke -- not accepted
  Crataegus douglasii Lindl. -- accepted -- black hawthorn, river hawthorn
  Crataegus douglasii var. douglasii Lindl. -- not accepted -- black hawthorn, Douglas' hawthorn
  Crataegus douglasii var. duchesnensis S.L. Welsh -- not accepted -- Duchesne black hawthorn
  Crataegus douglasii var. rivularis (Nutt.) Sarg. -- not accepted
  Crataegus douglasii var. suksdorfii Sarg. -- not accepted
  Crataegus dunbarii Sarg. -- not accepted
  Crataegus durobrivensis Sarg. -- not accepted
  Crataegus eatoniana Sarg. -- not accepted
  Crataegus edita Sarg. -- not accepted
  Crataegus edura Beadle -- not accepted
  Crataegus egens Beadle -- accepted
  Crataegus egglestonei Sarg. -- not accepted
  Crataegus egregia Beadle -- accepted
  Crataegus ellwangeriana Sarg. -- not accepted
  Crataegus enderbyensis J.B. Phipps & O'Kennon -- accepted
  Crataegus engelmannii Sarg. -- not accepted -- Engelmann's hawthorn
  Crataegus engelmannii var. sinistra (Beadle) E.J. Palmer -- not accepted
  Crataegus enuculata Sarg. -- not accepted
  Crataegus erythrocarpa Ashe -- accepted -- red hawthorn
  Crataegus erythropoda Ashe -- accepted -- cerro hawthorn
  Crataegus evansiana Sarg. -- not accepted
  Crataegus exilis Beadle -- accepted -- slender hawthorn
  Crataegus extraria Beadle -- accepted -- Marietta hawthorn
  Crataegus fastosa Sarg. -- not accepted
  Crataegus faxonii Sarg. -- not accepted
  Crataegus faxonii var. durifrucata Kruschke -- not accepted
  Crataegus faxonii var. praecoqua (Sarg.) Kruschke -- not accepted
  Crataegus faxonii var. praetermissa (Sarg.) E.J. Palmer -- not accepted
  Crataegus fecunda Sarg. -- accepted -- clair hawthorn, fecund hawthorn
  Crataegus fera Beadle -- not accepted
  Crataegus fernaldii Sarg. -- accepted
  Crataegus ferrissii Ashe -- not accepted
  Crataegus ferta Sarg. -- not accepted
  Crataegus filipes Ashe -- not accepted
  Crataegus flabellata (Bosc ex Spach) K. Koch -- accepted -- fanleaf hawthorn
  Crataegus flabellata var. densiflora (Sarg.) Kruschke -- not accepted
  Crataegus flabellata var. grayana (Eggl.) E.J. Palmer -- not accepted
  Crataegus flava Aiton -- accepted -- yellow hawthorn, yellowleaf hawthorn
  Crataegus flavida Sarg. -- not accepted
  Crataegus florens Beadle -- accepted
  Crataegus florentina Zuccagni -- not accepted
  Crataegus floridana Sarg. -- accepted
  Crataegus florifera Sarg. -- accepted
  Crataegus florifera var. celsa (Sarg.) Kruschke -- not accepted
  Crataegus florifera var. mortonis (Laughlin) Kruschke -- not accepted
  Crataegus florifera var. shirleyensis (Sarg.) Kruschke -- not accepted
  Crataegus florifera var. virilis (Sarg.) Kruschke -- not accepted
  Crataegus fluviatilis Sarg. -- accepted
  Crataegus foetida Ashe -- not accepted
  Crataegus fontanesiana (Spach) Steud. -- not accepted
  Crataegus fontanesiana auct. non (Spach) Steud. -- not accepted
  Crataegus formosa Sarg. -- accepted
  Crataegus fortunata Sarg. -- not accepted
  Crataegus fragilis Beadle -- accepted -- fragile hawthorn
  Crataegus franklinensis Sarg. -- not accepted
  Crataegus fretalis Sarg. -- accepted
  Crataegus frugiferens Beadle -- accepted
  Crataegus fulleriana Sarg. -- not accepted -- Fuller's hawthorn
  Crataegus fulleriana var. chippewaensis (Sarg.) Kruschke -- not accepted
  Crataegus fulleriana var. gigantea Kruschke -- not accepted
  Crataegus fulleriana var. miranda (Sarg.) Kruschke -- not accepted
  Crataegus furtiva Beadle -- accepted -- Albany hawthorn
  Crataegus galbana Beadle -- accepted
  Crataegus gattingeri Ashe -- accepted -- Gattinger's hawthorn
  Crataegus gattingeri var. rigida E.J. Palmer -- not accepted
  Crataegus gaudens Sarg. -- not accepted
  Crataegus gaylussacia A. Heller -- accepted -- Huckleberry hawthorn, Suksdorf's hawthorn
  Crataegus gemmosa Sarg. -- not accepted
  Crataegus georgiana Sarg. -- not accepted
  Crataegus glabra Thunb. -- not accepted
  Crataegus glabriuscula Sarg. -- not accepted
  Crataegus glareosa Ashe -- accepted -- Port Huron hawthorn
  Crataegus globosa Sarg. -- not accepted
  Crataegus grandis Ashe -- accepted -- grand hawthorn
  Crataegus gravida Beadle -- not accepted
  Crataegus gravis Ashe -- not accepted
  Crataegus grayana Eggl. -- not accepted
  Crataegus gregalis Beadle -- not accepted
  Crataegus greggiana Eggl. -- accepted -- Gregg's hawthorn
  Crataegus habereri Sarg. -- not accepted
  Crataegus hadleyana Sarg. -- not accepted
  Crataegus hamata Sarg. -- not accepted
  Crataegus hannibalensis E.J. Palmer -- not accepted
  Crataegus harbisonii Beadle -- accepted -- Harbison's hawthorn
  Crataegus harryi Sarg. -- not accepted
  Crataegus harveyana Sarg. -- not accepted -- Harvey's hawthorn
  Crataegus helvina Ashe -- accepted -- Clarkton hawthorn
  Crataegus hillii Sarg. -- not accepted
  Crataegus hirtiflora Sarg. -- not accepted
  Crataegus hispidula Sarg. -- not accepted -- Harvey's hawthorn
  Crataegus holmesiana Ashe -- accepted -- Holmes' hawthorn
  Crataegus holmesiana var. amicta (Ashe) E.J. Palmer -- not accepted
  Crataegus holmesiana var. chippewaensis (Sarg.) E.J. Palmer -- not accepted
  Crataegus holmesiana var. magniflora (Sarg.) E.J. Palmer -- not accepted
  Crataegus holmesiana var. villipes Ashe -- not accepted
  Crataegus honesta Sarg. -- not accepted
  Crataegus horseyi E.J. Palmer -- not accepted
  Crataegus ideae Sarg. -- accepted -- Concord hawthorn
  Crataegus ignava Beadle -- accepted -- Bedford Springs hawthorn
  Crataegus illecebrosa Sarg. -- not accepted
  Crataegus illuminata Sarg. -- not accepted
  Crataegus impar Beadle -- accepted -- redclay hawthorn
  Crataegus improvisa Sarg. -- not accepted
  Crataegus inanis Beadle -- accepted -- oldmaid hawthorn
  Crataegus incerta Sarg. -- not accepted
  Crataegus incisa Sarg. -- not accepted
  Crataegus indicens Ashe -- accepted -- Mansfield hawthorn
  Crataegus induta Sarg. -- not accepted
  Crataegus infera Sarg. -- not accepted
  Crataegus ingens Beadle -- not accepted
  Crataegus insidiosa Beadle -- not accepted -- Ozark hawthorn
  Crataegus insolens Sarg. -- not accepted
  Crataegus insperata Sarg. -- not accepted -- Harvey's hawthorn
  Crataegus integra Beadle -- accepted -- Lake Ella hawthorn
  Crataegus integrifolius Roxb. -- not accepted
  Crataegus integriloba Sarg. -- not accepted
  Crataegus interior Beadle -- not accepted
  Crataegus intricata Lange -- accepted -- Biltmore hawthorn, Copenhagen hawthorn
  Crataegus intricata var. boyntonii (Beadle) Kruschke -- not accepted
  Crataegus intricata var. neobushii (Sarg.) Kruschke -- not accepted
  Crataegus intricata var. rubella (Beadle) Kruschke -- not accepted
  Crataegus intricata var. straminea (Beadle) E.J. Palmer -- not accepted
  Crataegus invicta Beadle -- accepted -- Fulton hawthorn
  Crataegus invisa Sarg. -- not accepted
  Crataegus iracunda Beadle -- accepted -- stolonbearing hawthorn
  Crataegus iracunda var. brumalis (Ashe) Kruschke -- not accepted
  Crataegus iracunda var. diffusa (Sarg.) Kruschke -- not accepted
  Crataegus iracunda var. populnea (Ashe) Kruschke -- not accepted
  Crataegus iracunda var. silvicola (Beadle) E.J. Palmer -- not accepted
  Crataegus iracunda var. stolonifera (Sarg.) Kruschke -- not accepted
  Crataegus irrasa Sarg. -- accepted -- Blanchard's hawthorn
  Crataegus irrasa var. blanchardii (Sarg.) Eggl. -- not accepted
  Crataegus iterata Sarg. -- not accepted
  Crataegus jackii Sarg. -- not accepted
  Crataegus jesupii Sarg. -- accepted -- Jesup's hawthorn
  Crataegus jonesiae Sarg. -- accepted -- Miss Jones' hawthorn
  Crataegus jonesiae var. brownietta (Sarg.) Kruschke -- not accepted
  Crataegus jonesiae var. harryi (Sarg.) Kruschke -- not accepted
  Crataegus kansuensis E.H. Wilson -- accepted
  Crataegus kellermanii Sarg. -- not accepted
  Crataegus kelloggii Sarg. -- accepted -- Kellogg's hawthorn
  Crataegus kingstonensis Sarg. -- accepted -- Kingston's hawthorn
  Crataegus knieskerniana Sarg. -- accepted -- Knieskern's hawthorn
  Crataegus lacera Sarg. -- not accepted
  Crataegus lacrimata Small -- accepted -- Pensacola hawthorn
  Crataegus laetifica Sarg. -- not accepted
  Crataegus laevigata (Poir.) DC. -- accepted -- English hawthorn, smooth hawthorn, whitethorn, woodland hawthorn
  Crataegus lanata Beadle -- accepted -- hoary hawthorn
  Crataegus lancei J.B. Phipps -- accepted
  Crataegus lanceolata Sarg. -- not accepted
  Crataegus lanuginosa Sarg. -- accepted -- woolly hawthorn
  Crataegus lassa Beadle -- accepted -- Florida hawthorn
  Crataegus latebrosa Sarg. -- accepted -- densewoods hawthorn
  Crataegus laurentiana Sarg. -- accepted -- Laurentian hawthorn
  Crataegus laurentiana var. brunetiana (Sarg.) Kruschke -- not accepted
  Crataegus laurentiana var. dissimilifolia Kruschke -- not accepted
  Crataegus laxiflora Sarg. -- not accepted
  Crataegus lecta Sarg. -- not accepted
  Crataegus leiophylla Sarg. -- not accepted
  Crataegus lemingtonensis Sarg. -- not accepted -- Lemington hawthorn
  Crataegus leonensis E.J. Palmer -- accepted
  Crataegus lepida Beadle -- accepted -- dwarf hawthorn
  Crataegus leptophylla Sarg. -- not accepted
  Crataegus letchworthiana Sarg. -- not accepted
  Crataegus leucantha Laughlin -- not accepted
  Crataegus levis Sarg. -- accepted
  Crataegus limaria Sarg. -- not accepted
  Crataegus limata Beadle -- accepted -- Warm Springs hawthorn
  Crataegus limnophila Sarg. -- not accepted -- waterloving hawthorn
  Crataegus littoralis Sarg. -- not accepted
  Crataegus locuples Sarg. -- not accepted
  Crataegus lucorum Sarg. -- accepted -- grove hawthorn
  Crataegus luculenta Sarg. -- not accepted
  Crataegus ludoviciensis Sarg. -- not accepted
  Crataegus lumaria Ashe -- accepted -- roundleaf hawthorn
  Crataegus macauleyae Sarg. -- not accepted
  Crataegus mackenziei Sarg. -- not accepted
  Crataegus mackenziei var. aspera (Sarg.) E.J. Palmer -- not accepted
  Crataegus mackenziei var. bracteata (Sarg.) E.J. Palmer -- not accepted
  Crataegus macracantha Lodd. ex Louden -- accepted -- large-thorn hawthorn
  Crataegus macracantha var. colorado (Ashe) Kruschke -- not accepted
  Crataegus macracantha var. divida (Sarg.) Kruschke -- not accepted
  Crataegus macracantha var. integriloba (Sarg.) Kruschke -- not accepted
  Crataegus macracantha var. occidentalis (Britton) Eggl. -- not accepted
  Crataegus macracantha var. pertomentosa (Ashe) Kruschke -- not accepted
  Crataegus macropoda Sarg. -- not accepted
  Crataegus macrosperma Ashe -- accepted -- bigfruit hawthorn
  Crataegus macrosperma var. acutiloba (Sarg.) Eggl. -- not accepted
  Crataegus macrosperma var. demissa (Sarg.) Eggl. -- not accepted
  Crataegus macrosperma var. eganii (Ashe) Kruschke -- not accepted
  Crataegus macrosperma var. matura (Sarg.) Eggl. -- not accepted
  Crataegus macrosperma var. pastorum (Sarg.) Eggl. -- not accepted
  Crataegus macrosperma var. pentandra (Sarg.) Eggl. -- not accepted
  Crataegus macrosperma var. roanensis (Ashe) E.J. Palmer -- not accepted
  Crataegus magniflora Sarg. -- accepted
  Crataegus maloides Sarg. -- not accepted
  Crataegus mansfieldensis Sarg. -- not accepted
  Crataegus margarettae Ashe -- accepted -- Margarett's hawthorn
  Crataegus margarettae var. angustifolia E.J. Palmer -- accepted
  Crataegus margarettae var. brownii (Britton) Sarg. -- accepted
  Crataegus margarettae var. margarettae Ashe -- accepted -- Margarett's hawthorn
  Crataegus margarettae var. meiophylla (Sarg.) E.J. Palmer -- accepted
  Crataegus marshallii Eggl. -- accepted -- parsley hawthorn
  Crataegus maximowiczii C.K. Schneid. -- accepted
  Crataegus media Sarg. -- not accepted
  Crataegus membranacea Sarg. -- accepted -- tissueleaf hawthorn
  Crataegus menandiana Sarg. -- accepted -- Menand's hawthorn
  Crataegus mendosa Beadle -- accepted -- Albertville hawthorn
  Crataegus mercerensis Sarg. -- not accepted
  Crataegus meridiana Beadle -- accepted
  Crataegus meridionalis Sarg. -- not accepted -- gallion hawthorn
  Crataegus merita Sarg. -- not accepted
  Crataegus mexicana DC. -- accepted -- manzanita tejocotera, Mexican hawthorn, tejocote
  Crataegus michauxii Pers. -- not accepted
  Crataegus micrantha Sarg. -- not accepted
  Crataegus microcarpa Lindl. -- not accepted
  Crataegus milleri Sarg. -- not accepted
  Crataegus minutiflora Sarg. -- not accepted
  Crataegus mira Beadle -- accepted -- confederate hawthorn
  Crataegus mohrii Beadle -- not accepted
  Crataegus mollicula Sarg. -- not accepted -- Harvey's hawthorn
  Crataegus mollis (Torr. & A. Gray) Scheele -- accepted -- Arnold hawthorn, downy hawthorn, red hawthorn
  Crataegus mollis var. dumetosa (Sarg.) Kruschke -- accepted
  Crataegus mollis var. gigantea Kruschke -- not accepted
  Crataegus mollis var. incisifolia Kruschke -- not accepted
  Crataegus mollis var. incisifolia Kruschke ex J.B. Phipps -- accepted
  Crataegus mollis var. mollis (Torr. & A. Gray) Scheele -- accepted -- downy hawthorn
  Crataegus mollis var. sera (Sarg.) Eggl. -- not accepted
  Crataegus mollita Sarg. -- not accepted -- Harvey's hawthorn
  Crataegus monogyna Jacq. -- accepted -- oneseed hawthorn, singleseed hawthorn
  Crataegus monogyna var. monogyna Jacq. -- accepted -- oneseed hawthorn
  Crataegus monogyna var. rosea (Willd.) K. Koch -- not accepted
  Crataegus monosperma Sarg. -- not accepted
  Crataegus montivaga Sarg. -- not accepted
  Crataegus mortonis Laughlin -- not accepted
  Crataegus multiflora Bunge -- accepted -- inkberry hawthorn
  Crataegus munda Beadle -- accepted -- Batesburg hawthorn
  Crataegus nananixonii J.B. Phipps & O'Kennon -- accepted -- Nixon's hawthorn
  Crataegus neobaxteri Sarg. -- not accepted
  Crataegus neobushii Sarg. -- accepted -- Bush's hawthorn
  Crataegus neofluvialis Ashe -- not accepted
  Crataegus nigra Waldst. & Kit. -- accepted
  Crataegus nitens Sarg. -- not accepted
  Crataegus nitida (Engelm. ex Britton & A. Br.) Sarg. -- accepted -- glossy hawthorn
  Crataegus nitidula Sarg. -- accepted -- Ontario hawthorn
  Crataegus nitidula var. limatula (Sarg.) Kruschke -- not accepted
  Crataegus nitidula var. macrocarpa Kruschke -- not accepted
  Crataegus nitidula var. recedens (Sarg.) Kruschke -- not accepted
  Crataegus noelensis Sarg. -- not accepted
  Crataegus nuda Sarg. -- accepted -- nude hawthorn
  Crataegus nudiflora Nutt. ex Torr. & A. Gray -- not accepted
  Crataegus oakesiana Eggl. -- accepted
  Crataegus obscura Sarg. -- not accepted -- Harvey's hawthorn
  Crataegus occidentalis Britton -- not accepted
  Crataegus ohioensis Sarg. -- not accepted
  Crataegus okanaganensis J.B. Phipps & O'Kennon -- accepted -- Okanagan Valley hawthorn
  Crataegus okanaganensis var. okanaganensis J.B. Phipps & O'Kennon -- accepted -- Okanagan Valley hawthorn
  Crataegus okanaganensis var. wellsii J.B. Phipps & O'Kennon -- accepted -- Okanagan Valley hawthorn
  Crataegus okennonii J.B. Phipps -- accepted -- O'Kennon's hawthorn
  Crataegus opaca Hook. & Arn. -- accepted -- apple haw, riverflat hawthorn, western mayhaw
  Crataegus operta Ashe -- not accepted
  Crataegus opima Beadle -- accepted
  Crataegus opulens Sarg. -- accepted -- Rochester hawthorn
  Crataegus orbicularis J.B. Phipps & O'Kennon -- accepted
  Crataegus orientalis Pall. ex M. Bieb. -- accepted
  Crataegus ouachitensis E.J. Palmer -- accepted -- Ouachita hawthorn
  Crataegus ouachitensis var. minor E.J. Palmer -- not accepted
  Crataegus ovata Sarg. -- not accepted -- ovateleaf hawthorn
  Crataegus oxyacantha auct. non L. -- not accepted
  Crataegus oxyacantha var. paulii (Rehder) Rehder -- not accepted
  Crataegus oxyacanthoides Thuill. -- not accepted
  Crataegus pachyphylla Sarg. -- not accepted
  Crataegus padifolia Sarg. -- accepted -- bird-cherry hawthorn
  Crataegus padifolia var. incarnata Sarg. -- accepted
  Crataegus padifolia var. padifolia Sarg. -- accepted
  Crataegus pagensis Sarg. -- not accepted
  Crataegus pallens Beadle -- not accepted
  Crataegus palliata Sarg. -- not accepted
  Crataegus palmeri Sarg. -- not accepted
  Crataegus paludosa Sarg. -- accepted -- hawthorn
  Crataegus panda Beadle -- not accepted -- Florida hawthorn
  Crataegus paradoxa Sarg. -- not accepted
  Crataegus parkiae Sarg. -- not accepted
  Crataegus parvula Sarg. -- not accepted
  Crataegus pearsonii Ashe -- accepted -- Pearson's hawthorn
  Crataegus pedicellata Sarg. -- not accepted -- scarlet hawthorn
  Crataegus pedicellata var. albicans (Ashe) E.J. Palmer -- not accepted
  Crataegus pedicellata var. assurgens (Sarg.) E.J. Palmer -- not accepted
  Crataegus pedicellata var. caesa (Ashe) Kruschke -- not accepted
  Crataegus pedicellata var. ellwangeriana (Sarg.) Eggl. -- not accepted
  Crataegus pedicellata var. robesoniana (Sarg.) E.J. Palmer -- not accepted
  Crataegus pedicellata var. sertata (Sarg.) Kruschke -- not accepted
  Crataegus penita Beadle -- accepted -- Great Smoky Mountain hawthorn
  Crataegus pennsylvanica Ashe -- accepted -- Pennsylvania hawthorn
  Crataegus pentagyna Waldst. & Kit. ex Willd. -- accepted
  Crataegus peoriensis Sarg. -- not accepted
  Crataegus pequotorum Sarg. -- accepted -- Connecticut hawthorn
  Crataegus perjucunda Sarg. -- accepted -- pearthorn
  Crataegus permera Sarg. -- not accepted
  Crataegus permixta E.J. Palmer -- not accepted
  Crataegus persimilis Sarg. -- accepted -- plumleaf hawthorn
  Crataegus pertomentosa Ashe -- not accepted
  Crataegus pexa Beadle -- accepted
  Crataegus phaenopyrum (L. f.) Medik. -- accepted -- Washington hawthorn
  Crataegus phaneroneura Sarg. -- not accepted
  Crataegus phippsii O'Kennon -- accepted -- Phipps' hawthorn
  Crataegus pinetorum Beadle -- accepted -- pineland hawthorn
  Crataegus pinguis Sarg. -- not accepted
  Crataegus pinnatifida Bunge -- accepted -- Chinese haw, Chinese hawthorn
  Crataegus pinnatifida var. major N.E. Br. -- accepted -- Chinese haw, Chinese hawthorn
  Crataegus piperi Britton -- not accepted -- Piper's hawthorn
  Crataegus pisifera Sarg. -- not accepted
  Crataegus placens Sarg. -- not accepted
  Crataegus platycarpa Sarg. -- not accepted
  Crataegus poliophylla Sarg. -- not accepted -- elegant hawthorn
  Crataegus polyclada Sarg. -- not accepted
  Crataegus populifolia Walter -- not accepted
  Crataegus populnea Ashe -- accepted
  Crataegus porrecta Ashe -- accepted -- Pittsburgh hawthorn
  Crataegus porteri Britton -- not accepted
  Crataegus porteri var. caerulescens (Sarg.) E.J. Palmer -- not accepted
  Crataegus pratensis Sarg. -- accepted -- prairie hawthorn
  Crataegus pringlei Sarg. -- not accepted -- Pringle's hawthorn
  Crataegus pringlei var. exclusa (Sarg.) Eggl. -- not accepted
  Crataegus pringlei var. lobulata (Sarg.) Eggl. -- not accepted
  Crataegus prona Ashe -- accepted -- Illinois hawthorn
  Crataegus pruinosa (Wendl. f.) K. Koch -- accepted -- frosted hawthorn, waxyfruit hawthorn
  Crataegus pruinosa var. brachypoda (Sarg.) E.J. Palmer -- not accepted
  Crataegus pruinosa var. cognata (Sarg.) J.B. Phipps -- not accepted
  Crataegus pruinosa var. congesta (Sarg.) J.B. Phipps -- not accepted
  Crataegus pruinosa var. conjuncta (Sarg.) Eggl. -- not accepted
  Crataegus pruinosa var. delawarensis (Sarg.) E.J. Palmer -- not accepted
  Crataegus pruinosa var. dissona (Sarg.) Eggl. -- accepted
  Crataegus pruinosa var. grandiflora Kruschke -- not accepted
  Crataegus pruinosa var. latisepala (Sarg.) Eggl. -- not accepted
  Crataegus pruinosa var. leiophylla (Sarg.) J.B. Phipps -- not accepted
  Crataegus pruinosa var. magnifolia (Sarg.) J.B. Phipps -- accepted
  Crataegus pruinosa var. pachypoda (Sarg.) E.J. Palmer -- not accepted
  Crataegus pruinosa var. parvula (Sarg.) J.B. Phipps -- accepted
  Crataegus pruinosa var. porteri (Britton) Eggl. -- not accepted
  Crataegus pruinosa var. pruinosa (Wendl. f.) K. Koch -- accepted -- waxyfruit hawthorn
  Crataegus pruinosa var. rugosa (Ashe) Kruschke -- accepted
  Crataegus pruinosa var. virella (Ashe) Kruschke -- accepted
  Crataegus prunifolia Pers. -- not accepted
  Crataegus pulcherrima Ashe -- accepted -- beautiful hawthorn
  Crataegus punctata Jacq. -- accepted -- dotted hawthorn
  Crataegus punctata var. aurea Aiton -- not accepted
  Crataegus punctata var. canescens Britton -- not accepted
  Crataegus punctata var. microphylla Sarg. -- not accepted
  Crataegus punctata var. pausiaca (Ashe) E.J. Palmer -- not accepted
  Crataegus purpurella J.B. Phipps & O'Kennon -- accepted -- Loch Lomond hawthorn
  Crataegus putata Sarg. -- accepted -- Scranton hawthorn
  Crataegus putnamiana Sarg. -- not accepted
  Crataegus pyracantha var. crenulata (D. Don) Loudon -- not accepted
  Crataegus pyracanthifolia G. Don -- not accepted
  Crataegus pyracanthoides Beadle -- not accepted
  Crataegus pyracanthoides var. arborea (Beadle) E.J. Palmer -- not accepted
  Crataegus pyrifolia Lam. -- not accepted
  Crataegus quaesita Beadle -- accepted -- gulf hawthorn
  Crataegus raleighensis Ashe -- not accepted
  Crataegus randiana Sarg. -- not accepted
  Crataegus ravenelii Sarg. -- not accepted
  Crataegus ravida Ashe -- accepted -- jeweled hawthorn
  Crataegus recedens Sarg. -- not accepted
  Crataegus recurvata Beadle -- not accepted
  Crataegus regalis Beadle -- not accepted
  Crataegus regalis var. paradoxa (Sarg.) E.J. Palmer -- not accepted
  Crataegus relicta Sarg. -- not accepted
  Crataegus resima Beadle -- not accepted -- gulf hawthorn
  Crataegus reverchonii Sarg. -- accepted -- Reverchon's hawthorn
  Crataegus reverchonii var. discolor (Sarg.) E.J. Palmer -- not accepted
  Crataegus reverchonii var. mohrii (Beadle) J.B. Phipps -- accepted -- Reverchon's hawthorn
  Crataegus reverchonii var. palmeri (Sarg.) J.B. Phipps -- accepted -- Reverchon's hawthorn
  Crataegus reverchonii var. reverchonii Sarg. -- accepted -- Reverchon's hawthorn
  Crataegus reverchonii var. stevensiana (Sarg.) E.J. Palmer -- not accepted
  Crataegus rhipidophylla Gand. -- accepted
  Crataegus rhipidophylla var. lindmanii (Hrabetová) K.I. Chr. -- accepted
  Crataegus rhodella Ashe -- accepted -- Franklin's hawthorn
  Crataegus rigens Beadle -- accepted -- Gadsden hawthorn
  Crataegus rivularis Nutt. -- accepted -- river hawthorn
  Crataegus rivuloadamensis J.B. Phipps & O'Kennon -- accepted -- Adams Creek hawthorn
  Crataegus rivulopugnensis J.B. Phipps & O'Kennon -- accepted -- Battle Creek hawthorn
  Crataegus roanensis Ashe -- not accepted
  Crataegus roanensis var. fluviatilis (Sarg.) Kruschke -- not accepted
  Crataegus roanensis var. heidelbergensis (Sarg.) Kruschke -- not accepted
  Crataegus robinsonii Sarg. -- accepted -- Robinson's hawthorn
  Crataegus robur Beadle -- not accepted
  Crataegus roribacca Ashe -- accepted
  Crataegus rotundata Sarg. -- not accepted
  Crataegus rotundifolia Moench -- not accepted
  Crataegus rubella Beadle -- accepted
  Crataegus rubrifolia Sarg. -- not accepted
  Crataegus rudis Sarg. -- not accepted
  Crataegus rufula Sarg. -- accepted -- rusty hawthorn
  Crataegus rugosa Ashe -- not accepted
  Crataegus rupicola Sarg. -- not accepted
  Crataegus sabineana Ashe -- not accepted
  Crataegus saeva Sarg. -- not accepted
  Crataegus saligna Greene -- accepted -- willow hawthorn
  Crataegus sanguinea Pall. -- accepted
  Crataegus sargentii Beadle -- accepted -- Sargent's hawthorn
  Crataegus saundersiana Sarg. -- not accepted
  Crataegus scabera Sarg. -- not accepted -- Harvey's hawthorn
  Crataegus scabrida Sarg. -- accepted -- rough hawthorn
  Crataegus scabrida var. asperifolia (Sarg.) Kruschke -- accepted
  Crataegus scabrida var. balkwillii (Sarg.) Phipps -- not accepted
  Crataegus scabrida var. cyclophylla (Sarg.) Kruschke -- accepted
  Crataegus scabrida var. dunbarii (Sarg.) Kruschke -- not accepted
  Crataegus scabrida var. egglestonii (Sarg.) Kruschke -- accepted
  Crataegus scabrida var. hadleyana (Sarg.) Phipps -- not accepted
  Crataegus scabrida var. honesta (Sarg.) Kruschke -- not accepted
  Crataegus scabrida var. improvisa (Sarg.) Phipps -- not accepted
  Crataegus scabrida var. scabrida Sarg. -- accepted -- rough hawthorn
  Crataegus schizophylla Eggl. -- accepted
  Crataegus schuettei Ashe -- accepted -- Schuette's hawthorn
  Crataegus schuettei var. basilica (Beadle) Phipps -- not accepted
  Crataegus schuettei var. cuneata Kruschke -- accepted
  Crataegus schuettei var. ferrissii (Ashe) Kruschke ex J.B. Phipps -- accepted
  Crataegus schuettei var. gigantea Kruschke ex J.B. Phipps -- accepted
  Crataegus schuettei var. schuettei Ashe -- accepted -- Schuette's hawthorn
  Crataegus secreta Phipps -- not accepted
  Crataegus segnis Beadle -- accepted
  Crataegus senta Beadle -- accepted
  Crataegus serratifolia Desf. -- not accepted
  Crataegus severa Sarg. -- not accepted
  Crataegus shaferi Sarg. -- accepted -- Shafer's hawthorn
  Crataegus sheila-phippsiae J.B. Phipps & O'Kennon -- accepted
  Crataegus sheila-phippsiae var. saskatchewanensis J.B. Phipps & O'Kennon -- accepted
  Crataegus sheila-phippsiae var. sheila-phippsiae J.B. Phipps & O'Kennon -- accepted
  Crataegus sheridana A. Nelson -- accepted -- Great plains hawthorn
  Crataegus shinnersii Kruschke -- not accepted
  Crataegus shirleyensis Sarg. -- not accepted
  Crataegus shuswapensis J.B. Phipps & O'Kennon -- accepted
  Crataegus sicca Sarg. -- accepted
  Crataegus sicca var. glabrifolia (Sarg.) E.J. Palmer -- accepted
  Crataegus sicca var. sicca Sarg. -- accepted
  Crataegus signata Beadle -- not accepted
  Crataegus silvestris Sarg. -- not accepted
  Crataegus sordida Sarg. -- not accepted
  Crataegus sororia Beadle -- accepted
  Crataegus spathulata Michx. -- accepted -- littlehip hawthorn
  Crataegus spatiosa Sarg. -- accepted -- New London hawthorn
  Crataegus spicata Lam. -- not accepted
  Crataegus spinulosa Sarg. -- not accepted -- Harvey's hawthorn
  Crataegus spissa Sarg. -- accepted -- Essex hawthorn
  Crataegus stenosepala Sarg. -- accepted -- duke hawthorn
  Crataegus stevensiana Sarg. -- not accepted
  Crataegus stolonifera Sarg. -- accepted
  Crataegus stonei Sarg. -- accepted -- Stone's hawthorn
  Crataegus straminea Beadle -- not accepted
  Crataegus strigosa Sarg. -- not accepted
  Crataegus strongylophylla Sarg. -- not accepted
  Crataegus sublobulata Sarg. -- not accepted
  Crataegus submollis Sarg. -- accepted -- Quebec hawthorn
  Crataegus suborbiculata Sarg. -- accepted -- Caughuawaga hawthorn
  Crataegus suborbiculata var. saundersiana (Sarg.) Kruschke -- not accepted
  Crataegus subpilosa Sarg. -- not accepted
  Crataegus subrotundifolia Sarg. -- not accepted
  Crataegus succincta Sarg. -- not accepted
  Crataegus succulenta Schrad. ex Link -- accepted -- fleshy hawthorn
  Crataegus succulenta var. gemmosa (Sarg.) Kruschke -- accepted
  Crataegus succulenta var. laxiflora (Sarg.) Kruschke -- not accepted
  Crataegus succulenta var. macracantha (Lodd. ex Louden) Eggl. -- not accepted
  Crataegus succulenta var. michiganensis (Ashe) E.J. Palmer -- accepted
  Crataegus succulenta var. neofluvialis (Ashe) E.J. Palmer -- accepted
  Crataegus succulenta var. occidentalis Britton -- not accepted
  Crataegus succulenta var. pertomentosa (Ashe) E.J. Palmer -- not accepted
  Crataegus succulenta var. pisifera (Sarg.) Kruschke -- accepted
  Crataegus succulenta var. rutila (Sarg.) Kruschke -- not accepted
  Crataegus succulenta var. succulenta Schrad. ex Link -- accepted -- fleshy hawthorn
  Crataegus suksdorfii (Sarg.) Kruschke -- not accepted -- Suksdorf's hawthorn
  Crataegus sutherlandensis Sarg. -- not accepted -- Sutherland hawthorn
  Crataegus sylvestris Sarg. -- not accepted
  Crataegus tanacetifolia (Poir.) Pers. -- accepted
  Crataegus tantula Sarg. -- not accepted
  Crataegus tanuphylla Sarg. -- accepted -- keystone hawthorn
  Crataegus taquetii H. Lév. -- not accepted
  Crataegus tatnalliana Sarg. -- not accepted
  Crataegus tenax Ashe -- not accepted
  Crataegus tenuispina Sarg. -- not accepted
  Crataegus teres Beadle -- accepted
  Crataegus tersa Beadle -- not accepted
  Crataegus texana Buckley -- accepted -- Texas hawthorn
  Crataegus thermopegaea E.J. Palmer -- accepted -- graceful hawthorn
  Crataegus tinctoria Ashe -- accepted -- dyed hawthorn
  Crataegus tomentosa var. microcarpa Chapm. -- not accepted -- Harvey's hawthorn
  Crataegus torminalis L. -- not accepted
  Crataegus tortilis Ashe -- not accepted
  Crataegus torva Beadle -- not accepted
  Crataegus tracyi Ashe ex Eggl. -- accepted -- mountain hawthorn, Tracy's hawthorn
  Crataegus triflora Chapm. -- accepted -- threeflower hawthorn
  Crataegus tripartita Sarg. -- not accepted -- cutleaf hawthorn
  Crataegus tristis Beadle -- not accepted -- minute hawthorn
  Crataegus triumphalis Sarg. -- not accepted
  Crataegus truncata Sarg. -- not accepted
  Crataegus turnerorum Enquist -- accepted -- Turner's hawthorn
  Crataegus uniflora Münchh. -- accepted -- dwarf hawthorn, oneflower hawthorn
  Crataegus uniqua Sarg. -- not accepted
  Crataegus ursopedensis J.B. Phipps & O'Kennon -- accepted -- Bears Paw hawthorn
  Crataegus uvaldensis Sarg. -- not accepted -- lonestar hawthorn
  Crataegus vailiae Britton -- accepted -- Miss Vail's hawthorn
  Crataegus valida Beadle -- accepted -- Rockmart hawthorn
  Crataegus vallicola Sarg. -- not accepted
  Crataegus velutina Sarg. -- not accepted
  Crataegus venulosa Sarg. -- not accepted
  Crataegus venusta Beadle -- accepted
  Crataegus verruculosa Sarg. -- not accepted
  Crataegus versuta Beadle -- not accepted -- Johnny Reb hawthorn
  Crataegus viburnifolia Sarg. -- not accepted -- sawtooth hawthorn
  Crataegus vicinalis Beadle -- not accepted
  Crataegus villipes (Ashe) Ashe -- not accepted
  Crataegus villosa Thunb. -- not accepted
  Crataegus virella Ashe -- not accepted
  Crataegus viridis L. -- accepted -- green hawthorn
  Crataegus viridis var. desertorum (Sarg.) Keeney & Enquist -- not accepted -- desert hawthorn
  Crataegus viridis var. glabriuscula (Sarg.) J.B. Phipps -- accepted
  Crataegus viridis var. interior (Beadle) E.J. Palmer -- not accepted
  Crataegus viridis var. lanceolata (Sarg.) E.J. Palmer -- accepted
  Crataegus viridis var. lutensis (Sarg.) E.J. Palmer -- not accepted
  Crataegus viridis var. lutescens (Sarg.) E.J. Palmer -- not accepted
  Crataegus viridis var. nitens (Sarg.) J.B. Phipps -- accepted
  Crataegus viridis var. nitida Engelm. ex Britton & A. Br. -- not accepted
  Crataegus viridis var. ovata (Sarg.) E.J. Palmer -- accepted
  Crataegus viridis var. velutina (Sarg.) E.J. Palmer -- accepted
  Crataegus viridis var. viridis L. -- accepted -- green hawthorn
  Crataegus virilis Sarg. -- not accepted
  Crataegus visenda Beadle -- accepted
  Crataegus vittata Ashe -- not accepted
  Crataegus vulsa Beadle -- accepted -- Alabama hawthorn
  Crataegus warneri Sarg. -- not accepted -- Warner hawthorn, Warner's hawthorn
  Crataegus wattiana Hemsl. & Lace -- accepted
  Crataegus wattiana var. wattiana Hemsl. & Lace -- accepted -- Altai hawthorn
  Crataegus williamsii Eggl. -- accepted -- Williams' hawthorn
  Crataegus wisconsinensis Kruschke -- not accepted
  Crataegus wootoniana Eggl. -- accepted -- Wooton's hawthorn
  Crataegus X anomala Sarg. (pro sp.) -- not accepted -- anomalous hawthorn, Arnold hawthorn
  Crataegus X brevipes Peck (pro sp.) -- accepted -- hawthorn
  Crataegus X collicola Ashe (pro sp.) -- not accepted
  Crataegus X densiflora Sarg. (pro sp.) -- not accepted -- denseflower hawthorn
  Crataegus X grignonensis Mouill. -- accepted
  Crataegus X haemacarpa Ashe (pro sp.) -- accepted -- hawthorn
  Crataegus X hudsonica Sarg. (pro sp.) -- accepted -- Hudson hawthorn
  Crataegus X immanis Ashe (pro sp.) -- accepted -- hawthorn
  Crataegus X incaedua Sarg. (pro sp.) -- accepted -- hawthorn
  Crataegus X kennedyi Sarg. (pro sp.) -- accepted -- Kennedy's hawthorn
  Crataegus X kingstonensis Sarg. (pro sp.) -- not accepted -- Kingston's hawthorn
  Crataegus X laneyi Sarg. (pro sp.) -- accepted -- Laney's hawthorn
  Crataegus X lauta Sarg. (pro sp.) -- accepted
  Crataegus X lavallei Hérincq ex Lavallée -- accepted
  Crataegus X lettermanii Sarg. (pro sp.) -- not accepted -- Letterman's hawthorn
  Crataegus X maligna Sarg. (pro sp.) -- accepted -- hawthorn
  Crataegus X media Bechst. -- accepted
  Crataegus X mordenensis Boom -- accepted
  Crataegus X notha Sarg. (pro hybr.) -- accepted -- hawthorn
  Crataegus X pausiaca Ashe -- not accepted
  Crataegus X peckietta Sarg. (pro sp.) -- accepted -- Peck's hawthorn
  Crataegus X pilosa Sarg. (pro sp.) -- accepted -- pilose hawthorn
  Crataegus X puberis Sarg. (pro sp.) -- accepted -- hawthorn
  Crataegus X rubrocarnea Sarg. (pro sp.) -- accepted -- hawthorn
  Crataegus X simulata Sarg. -- accepted -- hawthorn
  Crataegus X websteri Sarg. -- accepted -- Webster's hawthorn
  Crataegus X whitakeri Sarg. (pro hybr.) -- accepted
  Crataegus xanthophylla Sarg. -- accepted -- buffalo hawthorn
  Crataegus youngii Sarg. -- not accepted
  Cyclactis Raf. -- not accepted
  Cydonia Mill. -- accepted
  Cydonia japonica (Thunb.) Pers. -- not accepted
  Cydonia oblonga Mill. -- accepted -- quince
  Cydonia sinensis Thouin -- not accepted
  Cydonia speciosa Sweet -- not accepted
  Cydonia vulgaris Pers. -- not accepted
  Cylactis arcticus ssp. acaulis (Michx.) W.A. Weber -- not accepted
  Cylactis lyncemontana Raf. -- not accepted
  Cylactis montana Raf. -- not accepted
  Cylactis pubescens (Raf.) W.A. Weber -- not accepted
  Dalibarda L. -- accepted
  Dalibarda lobata Baldwin -- not accepted
  Dalibarda pedata (Sm.) Stephan -- not accepted
  Dalibarda repens L. -- not accepted -- robin runaway
  Dasiphora Raf. -- accepted -- shrubby cinquefoil
  Dasiphora floribunda (Pursh) Raf. -- not accepted -- shrubby cinquefoil
  Dasiphora fruticosa auct. non (L.) Rydb. -- not accepted
  Dasiphora fruticosa (L.) Rydb. -- accepted -- shrubby cinquefoil
  Dasiphora fruticosa ssp. floribunda (Pursh) Kartesz -- not accepted -- bush cinquefoil, golden hardhack, shrubby cinquefoil, widdy
  Dasiphora fruticosa ssp. tenuifolia (Willd. ex Schltdl.) Rydb. -- not accepted
  Dryas L. -- accepted -- mountain-avens
  Dryas ajanensis Juz. -- accepted -- white dryad
  Dryas ajanensis ssp. beringensis Jurtzev -- accepted -- white dryad
  Dryas alaskensis A.E. Porsild -- accepted -- Alaskan mountain-avens
  Dryas chamissonis Spreng. -- not accepted
  Dryas crenulata Juz. -- accepted
  Dryas drummondii Richardson ex Hook. -- accepted -- Drummond's mountain-avens
  Dryas drummondii var. drummondii Richardson ex Hook. -- not accepted -- Drummond's mountain-avens
  Dryas drummondii var. eglandulosa A.E. Porsild -- not accepted -- yellow mountain-avens
  Dryas drummondii var. tomentosa (Farr) L.O. Williams -- not accepted -- tomentose mountain-avens
  Dryas hookeriana Juz. -- accepted
  Dryas incisa Juz. -- accepted
  Dryas integrifolia Vahl -- accepted -- entireleaf mountain-avens
  Dryas integrifolia ssp. chamissonis (Spreng.) Scoggan -- not accepted -- white mountain-avens
  Dryas integrifolia ssp. crenulata (Juz.) J. Kozhevn -- not accepted -- crenulate mountain-avens
  Dryas integrifolia ssp. integrifolia Vahl -- accepted -- entireleaf mountain-avens
  Dryas integrifolia ssp. sylvatica (Hultén) Hultén -- accepted -- entireleaf mountain-avens
  Dryas integrifolia var. canescens Simmons -- not accepted
  Dryas integrifolia var. subintegrifolia Hultén -- not accepted
  Dryas integrifolia var. sylvatica Hultén -- not accepted
  Dryas octopetala L. -- accepted -- eightpetal mountain-avens
  Dryas octopetala f. argentea (Blytt) Hultén -- accepted
  Dryas octopetala ssp. alaskensis (A.E. Porsild) Hultén -- not accepted -- Alaskan mountain-avens
  Dryas octopetala ssp. hookeriana (Juz.) Hultén -- not accepted -- Hooker's mountain-avens
  Dryas octopetala ssp. octopetala L. -- not accepted -- eightpetal mountain-avens
  Dryas octopetala ssp. octopetala var. angustifolia C.L. Hitchc. -- not accepted -- eightpetal mountain-avens
  Dryas octopetala ssp. octopetala var. kamtschatica (Juz.) Hultén -- not accepted
  Dryas octopetala ssp. octopetala var. octopetala L. -- not accepted -- eightpetal mountain-avens
  Dryas octopetala ssp. punctata (Juz.) Hultén -- not accepted -- eightpetal mountain-avens
  Dryas octopetala ssp. punctata var. glabrata Hultén -- not accepted
  Dryas octopetala ssp. punctata var. punctata L. -- not accepted
  Dryas octopetala ssp. punctata var. viscida Hultén -- not accepted
  Dryas octopetala var. angustifolia C.L. Hitchc. -- not accepted -- eightpetal mountain-avens
  Dryas octopetala var. argentea Blytt -- not accepted
  Dryas octopetala var. drummondii (Richardson ex Hook.) S. Watson -- not accepted
  Dryas octopetala var. glabrata Hultén -- not accepted
  Dryas octopetala var. hookeriana (Juz.) Breitung -- not accepted
  Dryas octopetala var. integrifolia (Vahl) Hook. f. -- not accepted
  Dryas octopetala var. kamtschatica (Juz.) Hultén -- not accepted -- Kamtschatka mountain-avens
  Dryas octopetala var. luteola Hultén -- not accepted
  Dryas octopetala var. octopetala L. -- not accepted -- eightpetal mountain-avens
  Dryas octopetala var. viscida Hultén -- not accepted
  Dryas pentapetala L. -- not accepted
  Dryas punctata Juz. -- accepted
  Dryas punctata ssp. alaskensis (A.E. Porsild) Jurtzev -- not accepted
  Dryas sylvatica (Hultén) A.E. Porsild -- not accepted
  Dryas tomentosa Farr -- not accepted
  Dryas X lewinii Rouleau -- accepted
  Dryas X sundermannii Kellerer ex Sundermann -- accepted
  Dryas X wyssiana Beauverd -- not accepted
  Drymocallis Fourr. ex Rydb. -- accepted
  Drymocallis agrimonioides (Pursh) Rydb. -- not accepted
  Drymocallis arguta (Pursh) Rydb. -- accepted -- tall cinquefoil
  Drymocallis arizonica Rydb. -- accepted -- Arizona cinquefoil
  Drymocallis ashlandica (Greene) Rydb. -- accepted -- Ashland cinquefoil
  Drymocallis campanulata (C.L. Hitchc.) Ertter -- accepted -- John Day drymocallis
  Drymocallis convallaria (Rydb.) Rydb. -- accepted -- cream cinquefoil
  Drymocallis cuneifolia Rydb. -- accepted
  Drymocallis cuneifolia var. cuneifolia Rydb. -- accepted
  Drymocallis cuneifolia var. ewanii (D.D. Keck) Ertter -- accepted -- Ewan's drymocallis
  Drymocallis deseretica Ertter -- accepted
  Drymocallis fissa (Nutt.) Rydb. -- accepted -- bigflower cinquefoil
  Drymocallis glabrata Rydb. -- accepted -- Idaho drymocallis
  Drymocallis glandulosa (Lindl.) Rydb. -- accepted -- sticky cinquefoil
  Drymocallis glandulosa var. glandulosa (Lindl.) Rydb. -- accepted -- sticky cinquefoil
  Drymocallis glandulosa var. reflexa (Greene) Ertter -- accepted -- sticky cinquefoil
  Drymocallis glandulosa var. viscida (Parish) Ertter -- accepted -- Parish's drymocallis
  Drymocallis glandulosa var. wrangelliana (Fisch. & Avé-Lall.) Ertter -- accepted
  Drymocallis hansenii (Greene) Rydb. -- accepted -- Hansen's cinquefoil
  Drymocallis lactea (Greene) Rydb. -- accepted
  Drymocallis lactea var. austinae (Jeps.) Ertter -- accepted -- Austin's drymocallis
  Drymocallis lactea var. lactea (Greene) Rydb. -- accepted -- Sierran drymocallis, wood beauty
  Drymocallis micropetala Rydb. -- accepted -- smallpetal cinquefoil
  Drymocallis pseudorupestris (Rydb.) Rydb. -- accepted -- sticky cinquefoil
  Drymocallis pseudorupestris var. crumiana Ertter -- accepted -- Crum's drymocallis
  Drymocallis pseudorupestris var. pseudorupestris (Rydb.) Rydb. -- accepted -- sticky cinquefoil
  Drymocallis pseudorupestris var. saxicola Ertter -- accepted -- Cliff drymocallis
  Drymocallis rhomboidea (Rydb.) Rydb. -- accepted -- globose drymocallis, Siskiyou drymocallis
  Duchesnea Sm. -- accepted
  Duchesnea indica (Andrews) Focke -- accepted -- India mockstrawberry, Indian strawberry
  Duchesnea indica var. indica (Andrews) Focke -- accepted -- Indian strawberry
  Dyctisperma Raf. -- not accepted
  Emplectocladus fasciculatus Torr. -- not accepted
  Eriobotrya Lindl. -- accepted -- loquat
  Eriobotrya japonica (Thunb.) Lindl. -- accepted -- loquat
  Eriogynia Hook. -- not accepted
  Eriogynia caespitosa (Nutt.) S. Watson -- not accepted
  Eriogynia hendersonii Canby -- not accepted
  Eriogynia pectinata (Pursh) Hook. -- not accepted
  Eriogynia uniflora S. Watson -- not accepted
  Erythrocoma campanulata Greene -- not accepted
  Erythrocoma canescens Greene -- not accepted
  Erythrocoma ciliata (Pursh) Greene -- not accepted
  Erythrocoma triflora (Pursh) Greene -- not accepted
  Exochorda Lindl. -- accepted -- pearlbrush
  Exochorda grandiflora Lindl. -- not accepted
  Exochorda racemosa (Lindl.) Rehder -- accepted -- common pearlbrush
  Fallugia Endl. -- accepted -- Apache plume
  Fallugia micrantha Cockerell -- not accepted
  Fallugia paradoxa (D. Don) Endl. ex Torr. -- accepted -- Apache plume
  Fallugia paradoxa var. acuminata Wooton -- not accepted
  Ficus pyrifolia Burm. f. -- not accepted
  Filipendula Mill. -- accepted -- queen
  Filipendula denudata (J. Presl & C. Presl) Rydb. -- not accepted
  Filipendula denudata (J. Presl & C. Presl) Fritsch -- not accepted
  Filipendula hexapetala Gilib. ex Maxim. -- not accepted
  Filipendula lobata (Gronov. ex Jacq.) Maxim. -- not accepted
  Filipendula occidentalis (S. Watson) Howell -- accepted -- queen of the forest, queen-of-the-forest
  Filipendula rubra (Hill) B.L. Rob. -- accepted -- queen of the prairie
  Filipendula ulmaria (L.) Maxim. -- accepted -- queen of the meadow
  Filipendula ulmaria ssp. denudata (J. Presl & C. Presl) Hayek -- not accepted -- queen of the meadow
  Filipendula ulmaria ssp. ulmaria (L.) Maxim. -- not accepted -- queen of the meadow
  Filipendula ulmaria var. denudata (J. Presl & C. Presl) Hayne ex Maxim. -- not accepted
  Filipendula vulgaris Moench -- accepted -- dropwort
  Fragaria L. -- accepted -- strawberry
  Fragaria americana (Porter) Britton -- not accepted
  Fragaria australis (Rydb.) Rydb. -- not accepted
  Fragaria bracteata A. Heller -- not accepted
  Fragaria californica Cham. & Schltdl. -- not accepted
  Fragaria californica var. franciscana Rydb. -- not accepted
  Fragaria canadensis Michx. -- not accepted
  Fragaria chiloensis (L.) Mill. -- accepted -- beach strawberry
  Fragaria chiloensis ssp. chiloensis (L.) Mill. -- accepted -- beach strawberry
  Fragaria chiloensis ssp. lucida (E. Vilm. ex J. Gay) Staudt -- accepted -- beach strawberry
  Fragaria chiloensis ssp. pacifica Staudt -- accepted -- Pacific beach strawberry
  Fragaria chiloensis ssp. sandwicensis (Decne.) Staudt -- accepted -- Sandwich beach strawberry
  Fragaria chiloensis var. ananassa Weston -- not accepted
  Fragaria chiloensis var. sandwicensis (Decne.) O. Deg. & I. Deg. -- not accepted
  Fragaria chiloensis var. scouleri Hook. -- not accepted
  Fragaria crantzii Crantz -- not accepted
  Fragaria crinita Rydb. -- not accepted -- Pacific strawberry
  Fragaria cuneifolia Nutt. ex Howell -- not accepted
  Fragaria glauca (S. Watson) Rydb. -- not accepted
  Fragaria grandiflora Ehrh. -- not accepted
  Fragaria grayana Vilm. ex J. Gay -- not accepted
  Fragaria helleri Holz. -- not accepted
  Fragaria indica Andrews -- not accepted
  Fragaria multicipita Fernald -- not accepted
  Fragaria ovalis (Lehm.) Rydb. -- not accepted
  Fragaria palustris (L.) Crantz -- not accepted
  Fragaria pauciflora Rydb. -- not accepted
  Fragaria platypetala Rydb. -- not accepted
  Fragaria platypetala var. sibbaldifolia (Rydb.) Jeps. -- not accepted
  Fragaria sandwicensis Decne. -- not accepted
  Fragaria sibbaldifolia Rydb. -- not accepted
  Fragaria sterilis L. -- not accepted
  Fragaria suksdorfii Rydb. -- not accepted
  Fragaria truncata Rydb. -- not accepted
  Fragaria vesca L. -- accepted -- woodland strawberry
  Fragaria vesca ssp. americana (Porter) Staudt -- accepted -- wild strawberry, woodland strawberry
  Fragaria vesca ssp. bracteata (A. Heller) Staudt -- accepted -- woodland strawberry
  Fragaria vesca ssp. californica (Cham. & Schltdl.) Staudt -- accepted -- California strawberry
  Fragaria vesca ssp. vesca L. -- accepted -- woodland strawberry
  Fragaria vesca var. alba (Ehrh.) Rydb. -- not accepted
  Fragaria vesca var. americana Porter -- not accepted
  Fragaria vesca var. bracteata (A. Heller) R.J. Davis -- not accepted
  Fragaria vesca var. crinita (Rydb.) C.L. Hitchc. -- not accepted
  Fragaria virginiana Duchesne -- accepted -- thickleaved wild strawberry, Virginia strawberry, wild strawberry
  Fragaria virginiana ssp. glauca (S. Watson) Staudt -- accepted -- blueleaf strawberry, Virginia strawberry
  Fragaria virginiana ssp. grayana (Vilm. ex J. Gay) Staudt -- accepted -- Virginia strawberry
  Fragaria virginiana ssp. platypetala (Rydb.) Staudt -- accepted -- Virginia strawberry
  Fragaria virginiana ssp. virginiana Duchesne -- accepted -- Virginia strawberry
  Fragaria virginiana var. australis Rydb. -- not accepted
  Fragaria virginiana var. canadensis (Michx.) Farw. -- not accepted
  Fragaria virginiana var. glauca S. Watson -- not accepted
  Fragaria virginiana var. illinoensis A. Gray -- not accepted
  Fragaria virginiana var. ovalis (Lehm.) R.J. Davis -- not accepted
  Fragaria virginiana var. platypetala (Rydb.) H.M. Hall -- not accepted
  Fragaria virginiana var. terrae-novae (Rydb.) Fernald & Wiegand -- not accepted
  Fragaria X ananassa (Weston) Duchesne ex Rozier (pro sp.) -- accepted -- hybrid strawberry
  Fragaria X ananassa ssp. ananassa (Weston) Duchesne ex Rozier -- accepted
  Fragaria X ananassa ssp. cuneifolia (Nutt. ex Howell) Staudt (pro nm.) -- accepted
  Fragaria X ananassa var. ananassa (Weston) Duchesne ex Rozier -- not accepted -- hybrid strawberry
  Fragaria X ananassa var. cuneifolia (Nutt. ex Howell) Staudt -- not accepted -- hybrid strawberry
  Fragaria X bringhurstii Staudt -- accepted
  Fragaria X magna auct. non Thuill. -- not accepted
  Geum L. -- accepted -- avens
  Geum agrimonioides Pursh -- not accepted
  Geum album J.F. Gmel. -- not accepted
  Geum aleppicum Jacq. -- accepted -- yellow avens
  Geum aleppicum ssp. strictum (Aiton) R.T. Clausen -- not accepted
  Geum aleppicum var. strictum (Aiton) Fernald -- not accepted
  Geum calthifolium Menzies ex Sm. -- accepted -- calthaleaf avens
  Geum campanulatum (Greene) G.N. Jones -- not accepted
  Geum camporum Rydb. -- not accepted
  Geum canadense Jacq. -- accepted -- white avens
  Geum canadense var. brevipes Fernald -- not accepted -- white avens
  Geum canadense var. camporum (Rydb.) Fernald & Weath. -- not accepted -- white avens
  Geum canadense var. canadense Jacq. -- not accepted -- white avens
  Geum canadense var. grimesii Fernald & Weath. -- not accepted -- grand birch, Grimes' avens
  Geum canadense var. texanum Fernald & Weath. -- not accepted -- Texan avens
  Geum canescens (Greene) Munz -- not accepted
  Geum ciliatum Pursh -- not accepted
  Geum ciliatum var. griseum (Greene) Kearney & Peebles -- not accepted
  Geum decurrens Rydb. -- not accepted
  Geum flavum (Porter) E.P. Bicknell -- not accepted
  Geum geniculatum Michx. -- accepted -- bent avens
  Geum glaciale Adams ex Fisch. & C.A. Mey. -- accepted -- glacier avens
  Geum gracilipes (Piper) M. Peck -- not accepted
  Geum hirsutum Muhl. ex Link -- not accepted
  Geum idahoense (Piper) Smedmark -- not accepted
  Geum laciniatum Murray -- accepted -- rough avens
  Geum laciniatum var. laciniatum Murray -- not accepted -- rough avens
  Geum laciniatum var. trichocarpum Fernald -- not accepted -- rough avens
  Geum lobatum (Baldwin) Smedmark -- not accepted
  Geum macrophyllum Willd. -- accepted -- large-leaf avens, largeleaf avens
  Geum macrophyllum ssp. perincisum (Rydb.) Hultén -- not accepted
  Geum macrophyllum var. macrophyllum Willd. -- accepted -- largeleaf avens
  Geum macrophyllum var. perincisum (Rydb.) Raup -- accepted -- large-leaf avens, largeleaf avens
  Geum macrophyllum var. rydbergii Farw. -- not accepted
  Geum oregonense (Scheutz) Rydb. -- not accepted
  Geum peckii Pursh -- accepted -- mountain avens
  Geum pentapetalum (L.) Makino -- not accepted -- Aleutian avens
  Geum perincisum Rydb. -- not accepted
  Geum perincisum var. intermedium B. Boivin -- not accepted
  Geum radiatum Michx. -- accepted -- Appalachian avens, spreading avens
  Geum rivale L. -- accepted -- purple avens, water avens
  Geum rossii (R. Br.) Ser. -- accepted -- alpine avens, Ross' avens
  Geum rossii var. depressum (Greene) C.L. Hitchc. -- not accepted -- Ross' avens
  Geum rossii var. rossii (R. Br.) Ser. -- not accepted -- Ross' avens
  Geum rossii var. turbinatum (Rydb.) C.L. Hitchc. -- not accepted -- Ross' avens
  Geum schofieldii Calder & Roy L. Taylor -- accepted -- Queen Charlotte avens
  Geum strictum Aiton -- not accepted
  Geum strictum var. decurrens (Rydb.) Kearney & Peebles -- not accepted
  Geum triflorum Pursh -- accepted -- old man's whiskers, prairie smoke, prairiesmoke
  Geum triflorum var. campanulatum (Greene) C.L. Hitchc. -- not accepted -- old man's whiskers
  Geum triflorum var. canescens (Greene) Kartesz & Gandhi -- not accepted -- alpine old man's whiskers, old man's whiskers, old-man's-whiskers
  Geum triflorum var. ciliatum (Pursh) Fassett -- accepted -- old man's whiskers
  Geum triflorum var. triflorum Pursh -- accepted -- old man's whiskers, old-man's-whiskers
  Geum turbinatum Rydb. -- not accepted
  Geum urbanum L. -- accepted -- herb bennet
  Geum vernum (Raf.) Torr. & A. Gray -- accepted -- heartleaf avens, spring avens
  Geum virginianum L. -- accepted -- cream avens
  Geum X aurantiacum Fr. -- accepted -- avens
  Geum X catlingii J.-P. Bernard & R. Gauthier -- accepted -- Catling's avens
  Geum X macneillii J.-P. Bernard & R. Gauthier -- accepted
  Geum X macranthum (Kearney) B. Boivin -- accepted -- avens
  Geum X pervale B. Boivin -- accepted
  Geum X pulchrum Fernald (pro sp.) -- accepted -- avens
  Gillenia Moench -- accepted
  Gillenia stipulata (Muhl. ex Willd.) Nutt. -- accepted -- American ipecac, Indian physic
  Gillenia trifoliata (L.) Moench -- accepted -- Bowman's root
  Halmia tomentosa var. pyrifolia (Lam.) M. Roem. -- not accepted
  Hesperhodos minutifolia ssp. mirifica (Greene) Hurst -- not accepted
  Hesperhodos minutifolius (Engelm.) Hurst -- not accepted
  Hesperhodos mirificus (Greene) Boulenger -- not accepted
  Heteromeles M. Roem. -- accepted -- toyon
  Heteromeles arbutifolia (Lindl.) M. Roem. -- accepted -- toyon
  Heteromeles arbutifolia var. arbutifolia (Lindl.) M. Roem. -- not accepted -- toyon
  Heteromeles arbutifolia var. cerina (Jeps.) E. Murray -- not accepted -- toyon
  Heteromeles arbutifolia var. macrocarpa (Munz) Munz -- not accepted -- toyon
  Heteromeles fremontiana Decne. -- not accepted
  Heteromeles salicifolia (C. Presl) Abrams -- not accepted
  Holodiscus (K. Koch) Maxim. -- accepted -- oceanspray
  Holodiscus australis A. Heller -- not accepted
  Holodiscus boursieri (Carrière) Rehder -- not accepted
  Holodiscus discolor (Pursh) Maxim. -- accepted -- creambush, creambush oceanspray, hillside oceanspray, oceanspray
  Holodiscus discolor ssp. franciscanus (Rydb.) Roy L. Taylor & MacBryde -- not accepted
  Holodiscus discolor ssp. microphyllus (Rydb.) A.E. Murray -- not accepted
  Holodiscus discolor var. ariaefolius (Sm.) Asch. & Graebn. -- not accepted
  Holodiscus discolor var. delnortensis F.A. Ley -- not accepted
  Holodiscus discolor var. discolor (Pursh) Maxim. -- accepted -- creambush, oceanspray
  Holodiscus discolor var. dumosus (S. Watson) Maxim. ex J.M. Coult. -- accepted -- rockspirea
  Holodiscus discolor var. franciscanus (Rydb.) Jeps. -- not accepted
  Holodiscus discolor var. glabrescens (Greenm.) Jeps. -- not accepted
  Holodiscus discolor var. microphyllus (Rydb.) Jeps. -- not accepted
  Holodiscus dumosus (Nutt. ex Hook.) A. Heller -- not accepted -- bush oceanspray, rockspirea
  Holodiscus dumosus ssp. saxicola (A. Heller) Abrams -- not accepted
  Holodiscus dumosus var. australis (A. Heller) F.A. Ley -- not accepted
  Holodiscus dumosus var. glabrescens (Greenm.) C.L. Hitchc. -- not accepted
  Holodiscus dumosus var. typicus F.A. Ley -- not accepted
  Holodiscus glabrescens (Greenm.) A. Heller -- not accepted
  Holodiscus microphyllus Rydb. -- accepted
  Holodiscus microphyllus var. glabrescens (Greenm.) F.A. Ley -- accepted
  Holodiscus microphyllus var. microphyllus Rydb. -- accepted -- rock spiraea
  Holodiscus microphyllus var. sericeus F.A. Ley -- accepted
  Holodiscus microphyllus var. typicus F.A. Ley -- not accepted
  Holodiscus saxicola A. Heller -- not accepted
  Horckelia scandularis Rydb. -- not accepted
  Horkelia Cham. & Schltdl. -- accepted
  Horkelia argyrocoma Rydb. -- not accepted
  Horkelia baileyi (S. Watson) Rydb. -- not accepted
  Horkelia beneolens A. Nelson & J.F. Macbr. -- not accepted
  Horkelia bernardiana Rydb. -- not accepted
  Horkelia bolanderi A. Gray -- accepted -- Bolander's horkelia, border horkelia
  Horkelia bolanderi ssp. bolanderi A. Gray -- not accepted -- Bolanders horkelia
  Horkelia bolanderi ssp. clevelandii (Greene) D.D. Keck -- not accepted
  Horkelia bolanderi ssp. parryi (S. Watson) D.D. Keck -- not accepted
  Horkelia bolanderi var. marinensis Elmer -- not accepted
  Horkelia brownii Rydb. -- not accepted
  Horkelia californica Cham. & Schltdl. -- accepted -- California horkelia
  Horkelia californica ssp. californica Cham. & Schltdl. -- not accepted -- California horkelia
  Horkelia californica ssp. dissita (Crum ex Jeps.) Ertter -- not accepted -- California horkelia
  Horkelia californica ssp. frondosa (Greene) Ertter -- not accepted -- California horkelia
  Horkelia californica var. californica Cham. & Schltdl. -- accepted -- California horkelia
  Horkelia californica var. elata (Greene) Ertter & Reveal -- accepted -- California horkelia
  Horkelia californica var. frondosa (Greene) Ertter & Reveal -- accepted -- California horkelia
  Horkelia californica var. sericea A. Gray -- not accepted
  Horkelia capitata Lindl. -- not accepted
  Horkelia caruifolia Rydb. ex Howell -- not accepted
  Horkelia clevelandii (Greene) Rydb. -- accepted -- Cleveland's horkelia
  Horkelia clevelandii var. clevelandii (Greene) Rydb. -- accepted -- Cleveland's horkelia
  Horkelia congdonis Rydb. -- not accepted
  Horkelia congesta Douglas ex Hook. -- accepted -- Sierra horkelia
  Horkelia congesta ssp. congesta Douglas ex Hook. -- not accepted -- Sierra horkelia
  Horkelia congesta ssp. nemorosa D.D. Keck -- not accepted -- Sierra horkelia
  Horkelia congesta var. congesta Douglas ex Hook. -- accepted -- Sierra horkelia
  Horkelia congesta var. nemorosa (D.D. Keck) M. Peck -- accepted -- Sierra horkelia
  Horkelia cuneata Lindl. -- accepted -- wedgeleaf horkelia
  Horkelia cuneata ssp. cuneata Lindl. -- not accepted -- wedgeleaf horkelia
  Horkelia cuneata ssp. puberula (Rydb.) D.D. Keck -- not accepted -- wedgeleaf horkelia
  Horkelia cuneata ssp. sericea (A. Gray) D.D. Keck -- not accepted -- wedge-leaved horkelia, wedgeleaf horkelia
  Horkelia cuneata var. cuneata Lindl. -- accepted -- wedgeleaf horkelia
  Horkelia cuneata var. puberula (Rydb.) Ertter & Reveal -- accepted -- wedgeleaf horkelia
  Horkelia cuneata var. sericea (A. Gray) Ertter & Reveal -- accepted -- wedgeleaf horkelia
  Horkelia daucifolia (Greene) Rydb. -- accepted -- carrotleaf horkelia
  Horkelia daucifolia ssp. daucifolia (Greene) Rydb. -- not accepted -- carrotleaf horkelia
  Horkelia daucifolia ssp. latior D.D. Keck -- not accepted -- carrotleaf horkelia
  Horkelia daucifolia var. caruifolia (Rydb. ex Howell) Ertter & Reveal -- accepted -- carrotleaf horkelia
  Horkelia daucifolia var. daucifolia (Greene) Rydb. -- accepted -- carrotleaf horkelia
  Horkelia daucifolia var. indicta (Jeps.) Ertter & Reveal -- accepted -- carrotleaf horkelia
  Horkelia elata (Greene) Rydb. -- not accepted
  Horkelia flavescens Rydb. -- not accepted
  Horkelia frondosa (Greene) Rydb. -- not accepted
  Horkelia fusca Lindl. -- accepted -- dusky horkelia, pinewoods horkelia
  Horkelia fusca ssp. capitata (Lindl.) D.D. Keck -- not accepted -- bighead horkelia
  Horkelia fusca ssp. filicoides (Crum) D.D. Keck -- not accepted -- pinewoods horkelia
  Horkelia fusca ssp. fusca Lindl. -- not accepted -- pinewoods horkelia
  Horkelia fusca ssp. parviflora (Nutt. ex Hook. & Arn.) D.D. Keck -- not accepted -- smallflower horkelia
  Horkelia fusca ssp. pseudocapitata (Rydb. ex Howell) D.D. Keck -- not accepted -- littlehead horkelia
  Horkelia fusca ssp. tenella (S. Watson) D.D. Keck -- not accepted -- pinewoods horkelia
  Horkelia fusca var. brownii (Rydb.) Ertter & Reveal -- accepted -- bighead horkelia
  Horkelia fusca var. capitata (Lindl.) M. Peck -- accepted
  Horkelia fusca var. filicoides (Crum) M. Peck -- accepted -- pinewoods horkelia
  Horkelia fusca var. fusca Lindl. -- accepted -- pinewoods horkelia
  Horkelia fusca var. parviflora (Nutt. ex Hook. & Arn.) Wawra -- accepted
  Horkelia fusca var. pseudocapitata (Rydb. ex Howell) M. Peck -- accepted
  Horkelia fusca var. tenella S. Watson -- accepted -- pinewoods horkelia
  Horkelia fusca var. tenuiloba Torr. -- not accepted
  Horkelia glandulosa Eastw. -- not accepted
  Horkelia gordonii Hook. -- not accepted
  Horkelia gordonii var. alpicola (Rydb. ex Howell) Rydb. -- not accepted
  Horkelia gordonii var. megalopetala Rydb. -- not accepted
  Horkelia hendersonii Howell -- accepted -- Henderson's horkelia
  Horkelia hispidula Rydb. -- accepted -- White Mountain horkelia
  Horkelia howellii (Greene) Rydb. -- accepted
  Horkelia kelloggii Greene -- not accepted
  Horkelia marinensis (Elmer) Crum ex D.D. Keck -- accepted -- Point Reyes horkelia
  Horkelia multifoliolata Torr. -- not accepted
  Horkelia parryi Greene -- accepted -- Parry's horkelia
  Horkelia parviflora Nutt. ex Hook. & Arn. -- not accepted
  Horkelia pseudocapitata Rydb. ex Howell -- not accepted
  Horkelia puberula Rydb. -- not accepted
  Horkelia purpurascens S. Watson -- not accepted
  Horkelia purpurascens ssp. congdonis (Rydb.) Abrams -- not accepted
  Horkelia rydbergii Elmer -- accepted -- Rydberg's horkelia
  Horkelia sericata S. Watson -- accepted -- silky horkelia
  Horkelia sericea (A. Gray) Rydb. -- not accepted
  Horkelia sericoleuca Rydb. -- not accepted
  Horkelia tenuiloba (Torr.) A. Gray -- accepted -- Santa Rosa horkelia
  Horkelia tridentata Torr. -- accepted -- threetooth horkelia
  Horkelia tridentata ssp. flavescens (Rydb.) D.D. Keck -- not accepted -- threetooth honeydew, threetooth horkelia
  Horkelia tridentata ssp. tridentata Torr. -- not accepted -- threetooth horkelia
  Horkelia tridentata var. flavescens (Rydb.) Ertter & Reveal -- accepted -- threetooth horkelia
  Horkelia tridentata var. tridentata Torr. -- accepted -- threetooth horkelia
  Horkelia truncata Rydb. -- accepted -- Ramona horkelia
  Horkelia tularensis (J.T. Howell) Munz -- accepted -- Kern Plateau horkelia, Tulare horkelia
  Horkelia wilderae Parish -- accepted -- Barton Flats horkelia
  Horkelia yadonii Ertter -- accepted -- Santa Lucia horkelia
  Horkeliella (Rydb.) Rydb. -- accepted -- false horkelia
  Horkeliella congdonis (Rydb.) Rydb. -- accepted -- Congdon's false horkelia
  Horkeliella purpurascens (S. Watson) Rydb. -- accepted -- purple false horkelia
  Ivesia Torr. & A. Gray -- accepted -- mousetail
  Ivesia aperta (J.T. Howell) Munz -- accepted -- Sierra Valley ivesia, Sierra Valley mousetail
  Ivesia aperta var. aperta (J.T. Howell) Munz -- accepted -- Sierra Valley ivesia, Sierra Valley mousetail
  Ivesia aperta var. canina Ertter -- accepted -- Dog Valley ivesia, Sierra Valley mousetail
  Ivesia argyrocoma (Rydb.) Rydb. -- accepted -- silver-haired ivesia, silverhair mousetail
  Ivesia argyrocoma var. argyrocoma (Rydb.) Rydb. -- accepted -- silverhair mousetail
  Ivesia arizonica (Eastw. ex J.T. Howell) Ertter -- accepted -- rock whitefeather, rock-whitefeather
  Ivesia arizonica var. arizonica (Eastw. ex J.T. Howell) Ertter -- accepted -- Arizona whitefeather
  Ivesia arizonica var. saxosa (Brandegee) Ertter -- accepted -- rock whitefeather, whitefeather ivesia
  Ivesia baileyi S. Watson -- accepted -- Bailey's ivesia
  Ivesia baileyi ssp. setosa (S. Watson) D.D. Keck -- not accepted
  Ivesia baileyi ssp. typica D.D. Keck -- not accepted
  Ivesia baileyi var. baileyi S. Watson -- accepted -- Bailey's ivesia
  Ivesia baileyi var. beneolens (A. Nelson & J.F. Macbr.) Ertter -- accepted -- Bailey's ivesia
  Ivesia baileyi var. setosa S. Watson -- not accepted -- Bailey's ivesia
  Ivesia callida (H.M. Hall) Rydb. -- accepted -- Tahquitz ivesia, Tahquitz mousetail
  Ivesia campestris (M.E. Jones) Rydb. -- accepted -- field mousetail
  Ivesia cryptocaulis (Clokey) D.D. Keck -- accepted -- Charleston Peak mousetail, hidden ivesia
  Ivesia eremica (Coville) Rydb. -- not accepted
  Ivesia gordonii (Hook.) Torr. & A. Gray -- accepted -- Gordon's ivesia
  Ivesia gordonii var. alpicola (Rydb. ex Howell) Ertter & Reveal -- accepted -- Gordon's ivesia
  Ivesia gordonii var. gordonii (Hook.) Torr. & A. Gray -- accepted -- Gordon's ivesia
  Ivesia gordonii var. pygmea (A. Gray) S. Watson -- not accepted -- Gordon's ivesia
  Ivesia gordonii var. ursinorum (Jeps.) Ertter & Reveal -- accepted -- Gordon's ivesia
  Ivesia gordonii var. wasatchensis N.H. Holmgren ex Ertter & Reveal -- accepted -- Gordon's ivesia
  Ivesia gracilis Torr. & A. Gray -- not accepted
  Ivesia jaegeri Munz & I.M. Johnst. -- accepted -- Jaeger's ivesia, Jaeger's mousetail
  Ivesia kingii S. Watson -- accepted -- Ash Meadows ivesia, King's ivesia, King's mousetail
  Ivesia kingii var. eremica (Coville) Ertter -- accepted -- Ash Meadows ivesia
  Ivesia kingii var. kingii S. Watson -- accepted -- alkali ivesia
  Ivesia lemmonii S. Watson -- not accepted
  Ivesia longibracteata Ertter -- accepted -- Castle Crags ivesia, longbract mousetail
  Ivesia lycopodioides A. Gray -- accepted -- clubmoss ivesia, clubmoss mousetail
  Ivesia lycopodioides ssp. lycopodioides A. Gray -- not accepted -- clubmoss ivesia, clubmoss mousetail
  Ivesia lycopodioides ssp. megalopetala (Rydb.) D.D. Keck -- not accepted -- clubmoss mousetail
  Ivesia lycopodioides ssp. scandularis (Rydb.) D.D. Keck -- not accepted -- clubmoss mousetail
  Ivesia lycopodioides ssp. typica D.D. Keck -- not accepted
  Ivesia lycopodioides var. lycopodioides A. Gray -- accepted -- clubmoss mousetail
  Ivesia lycopodioides var. megalopetala (Rydb.) Ertter & Reveal -- accepted -- clubmoss mousetail
  Ivesia lycopodioides var. scandularis (Rydb.) Ertter & Reveal -- accepted -- clubmoss mousetail
  Ivesia muirii A. Gray -- accepted -- granite mousetail
  Ivesia multifoliolata (Torr.) D.D. Keck -- accepted -- manyleaf mousetail
  Ivesia paniculata T.W. Nelson & J.P. Nelson -- accepted -- Ash Creek ivesia, Ash Creek mousetail
  Ivesia patellifera (J.T. Howell) Ertter -- accepted -- Kingston Mountain mousetail, Kingston Mountains cinquefoil
  Ivesia pickeringii Torr. ex A. Gray -- accepted -- Pickering ivesia, silky mousetail
  Ivesia pinnatifida S. Watson -- not accepted
  Ivesia pityocharis Ertter -- accepted -- Pine Nut Mountain mousetail, Pine Nut Mountains ivesia
  Ivesia purpurascens (S. Watson) D.D. Keck -- not accepted
  Ivesia purpurascens ssp. congdonis (Rydb.) D.D. Keck -- not accepted
  Ivesia purpurascens ssp. purpurascens (S. Watson) D.D. Keck -- not accepted -- summit mousetail
  Ivesia pygmaea A. Gray -- accepted -- dwarf ivesia, dwarf mousetail
  Ivesia rhypara Ertter & Reveal -- accepted -- grimy ivesia, grimy mousetail
  Ivesia rhypara var. rhypara Ertter & Reveal -- accepted -- grimy ivesia, grimy mousetail
  Ivesia rhypara var. shellyi Ertter -- accepted -- Shelly's mousetail
  Ivesia sabulosa (M.E. Jones) D.D. Keck -- accepted -- intermountain ivesia, Intermountain mousetail
  Ivesia santolinoides A. Gray -- accepted -- Sierra mousetail
  Ivesia saxosa (Lemmon ex Greene) Ertter -- accepted -- rock mousetail
  Ivesia sericoleuca (Rydb.) Rydb. -- accepted -- Plumas ivesia, Plumas mousetail
  Ivesia setosa (S. Watson) Rydb. -- accepted
  Ivesia shockleyi S. Watson -- accepted -- Shockley's ivesia, sky mousetail
  Ivesia shockleyi var. ostleri Ertter -- accepted -- Ostler's mousetail
  Ivesia shockleyi var. shockleyi S. Watson -- accepted -- Shockley's ivesia, sky mousetail
  Ivesia tweedyi Rydb. -- accepted -- Tweedy's ivesia
  Ivesia unguiculata A. Gray -- accepted -- Yosemite mousetail
  Ivesia utahensis S. Watson -- accepted -- Utah mousetail
  Ivesia webberi A. Gray -- accepted -- Webber ivesia, Webber's ivesia, wire mousetail
  Kelseya Rydb. -- accepted
  Kelseya uniflora (S. Watson) Rydb. -- accepted -- oneflower kelseya
  Kerria DC. -- accepted
  Kerria japonica (L.) DC. -- accepted -- Japanese rose
  Kerria tetrapetala Siebold -- not accepted
  Lauro-cerasus caroliniana (Mill.) M. Roem. -- not accepted
  Lauro-cerasus myrtifolia (L.) Britton -- not accepted
  Lauro-cerasus occidentalis (Sw.) M. Roem. -- not accepted
  Lauro-cerasus officinalis M. Roem. -- not accepted
  Laurocerasus caroliniana (Mill.) M. Roem. -- not accepted
  Laurocerasus myrtifolia (L.) Britton -- not accepted
  Laurocerasus occidentalis (Sw.) M. Roem. -- not accepted
  Laurocerasus officinalis M. Roem. -- not accepted
  Leutkea Bong. -- not accepted
  Leutkea pectinata (Pursh) Kuntze -- not accepted
  Louiseania triloba (Lindl.) Pachom. -- not accepted
  Luetkea Bong. -- accepted
  Luetkea caespitosa (Nutt.) Britton -- not accepted
  Luetkea caespitosa var. elatior (S. Watson) Britton -- not accepted
  Luetkea cinerascens (Piper) A. Heller -- not accepted
  Luetkea hendersonii (Canby) Greene -- not accepted
  Luetkea pectinata (Pursh) Kuntze -- accepted -- partridgefoot
  Luetkea sibbaldioides Bong. -- not accepted
  Lyonothamnus A. Gray -- accepted -- Catalina ironwood
  Lyonothamnus aspleniifolius Greene -- not accepted
  Lyonothamnus floribundus A. Gray -- accepted -- Catalina ironwood
  Lyonothamnus floribundus ssp. aspleniifolius (Greene) P.H. Raven -- not accepted -- Catalina ironwood, fern-leaf Catalina ironwood, Santa Cruz Island ironwood
  Lyonothamnus floribundus ssp. floribundus A. Gray -- not accepted -- Catalina ironwood
  Lyonothamnus floribundus var. aspleniifolius (Greene) Brandegee -- not accepted
  Malacomeles (Decne.) Engl. -- accepted -- false serviceberry
  Malacomeles denticulata (Kunth) G.N. Jones -- accepted -- big bend serviceberry, Big Bend serviceberry, southern false serviceberry
  Malus Mill. -- accepted -- apple
  Malus angustifolia (Aiton) Michx. -- accepted -- southern crab apple, southern crabapple
  Malus angustifolia var. angustifolia (Aiton) Michx. -- not accepted -- southern crab apple, southern crabapple
  Malus angustifolia var. puberula (Rehder) Rehder -- not accepted -- southern crab apple, southern crabapple
  Malus angustifolia var. spinosa (Rehder) C.F. Reed -- not accepted
  Malus bacata ssp. mandshurica (Maxim.) Likhonos -- not accepted
  Malus baccata (L.) Borkh. -- accepted -- Siberian crab apple, Siberian crabapple
  Malus baccata f. gracilis Rehder -- not accepted
  Malus baccata ssp. mandshurica (Maxim.) Likhonos -- not accepted
  Malus baccata var. baccata (L.) Borkh. -- not accepted -- Chinese crab apple, manzano, Siberian crab apple
  Malus baccata var. himalaica (Maxim.) C.K. Schneid. -- not accepted -- Siberian crab apple
  Malus baccata var. sibirica C.K. Schneid. -- not accepted
  Malus baccata var. toringo (K. Koch) Koidz. -- not accepted
  Malus bracteata Rehder -- not accepted
  Malus carolinensis Ashe -- not accepted
  Malus communis Poir. -- not accepted
  Malus coronaria (L.) Mill. -- accepted -- sweet crab apple, sweet crabapple
  Malus coronaria ssp. ioensis (Alph. Wood) Likhonos -- not accepted
  Malus coronaria var. angustifolia (Aiton) Likhonos -- not accepted -- sweet crab apple
  Malus coronaria var. bracteata (Rehder) Likhonos -- not accepted
  Malus coronaria var. coronaria (L.) Mill. -- not accepted -- sweet crab apple, sweet crabapple
  Malus coronaria var. dasycalyx Rehder -- not accepted -- sweet crab apple, sweet crabapple
  Malus coronaria var. elongata (Rehder) Rehder -- not accepted
  Malus coronaria var. glaucescens (Rehder) Likhonos -- not accepted
  Malus coronaria var. hoopesii Rehder -- not accepted
  Malus coronaria var. ioensis (Alph. Wood) C.K. Schneid. -- not accepted
  Malus coronaria var. lancifolia (Rehder) C.F. Reed -- not accepted
  Malus coronaria var. platycarpa (Rehder) Likhonos -- not accepted
  Malus coronaria var. plena C.K. Schneid. -- not accepted
  Malus coronaria var. puberula Rehder -- not accepted
  Malus diversifolia (Bong.) M. Roem. -- not accepted
  Malus domestica Borkh. -- not accepted
  Malus domestica var. halliana (Koehne) Likhonos -- not accepted
  Malus domestica var. hupehensis (Pamp.) Likhonos -- not accepted
  Malus elongata (Rehder) Ashe -- not accepted
  Malus florentina (Zuccagni) C.K. Schneid. -- accepted -- Florentine crab apple, hawthorn-leaf crab apple
  Malus floribunda Siebold ex Van Houtte -- accepted -- Japanese flowering crab apple, Japanese flowering crabapple
  Malus fragrans Rehder -- not accepted
  Malus fusca (Raf.) C.K. Schneid. -- accepted -- Oregon crab apple, Oregon crabapple
  Malus fusca var. diversifolia (Bong.) C.K. Schneid. -- not accepted
  Malus fusca var. levipes (Nutt.) C.K. Schneid. -- not accepted
  Malus glabrata Rehder -- not accepted -- Biltmore crab apple, Biltmore crabapple
  Malus glaucescens Rehder -- not accepted -- Dunbar crab apple, Dunbar crabapple
  Malus halliana Koehne -- accepted -- Hall crab apple
  Malus hupehensis (Pamp.) Rehder -- accepted -- Chinese crab apple, tea crab apple
  Malus ioensis (Alph. Wood) Britton -- accepted -- prairie crab apple, prairie crabapple
  Malus ioensis var. bushii Rehder -- not accepted
  Malus ioensis var. creniserrata Rehder -- not accepted
  Malus ioensis var. ioensis (Alph. Wood) Britton -- not accepted -- prairie crab apple, prairie crabapple
  Malus ioensis var. palmeri Rehder -- not accepted
  Malus ioensis var. spinosa Rehder -- not accepted
  Malus ioensis var. texana Rehder -- not accepted -- Texas crab apple, Texas crabapple
  Malus lancifolia Rehder -- not accepted
  Malus macounii Greene -- not accepted
  Malus malus (L.) Britton -- not accepted
  Malus mandshurica (Maxim.) Kom. -- accepted -- Manchurian crab apple, Siberian crabapple
  Malus mandshurica var. sachalinensis (Juz.) Ponomar. -- not accepted -- Manchurian crab apple
  Malus orientalis Uglitzk. -- accepted
  Malus platycarpa Rehder -- not accepted -- bigfruit crab
  Malus praecox (Pall.) Borkh. -- not accepted
  Malus prattii (Hemsl.) C.K. Schneid. -- accepted -- Pratt apple
  Malus prunifolia (Willd.) Borkh. -- accepted -- plumleaf crab apple, plumleaf crabapple
  Malus prunifolia var. rinkii (Koidz.) Rehder -- not accepted
  Malus pulcherrima (Siebold) Makino -- not accepted
  Malus pumila Mill. -- accepted -- paradise apple
  Malus pumila var. niedzwetzkyana (Dieck) C.K. Schneid. -- not accepted
  Malus rivularis (Douglas) M. Roem. -- not accepted
  Malus sachalinensis Juz. -- not accepted
  Malus sargentii Rehder -- not accepted -- Sargent's apple, Sargent's crab apple
  Malus sieboldii (Regel) Rehder -- accepted -- toringa crab apple, toringa crabapple
  Malus sieboldii var. sieboldii (Regel) Rehder -- not accepted -- toringa crab apple, toringa crabapple
  Malus sieboldii var. toringo (K. Koch) Sielbold ex C.K. Schneid. -- not accepted
  Malus sieboldii var. zumi (Matsum.) Asami -- not accepted -- toringa crab apple, toringa crabapple
  Malus sieversii (Ledeb.) M. Roem. -- accepted
  Malus sikkimensis (Wenz.) Koehne ex C.K. Schneid. -- accepted
  Malus spectabilis (Aiton) Borkh. -- accepted -- Asiatic apple, Chinese crab, Chinese flowering apple
  Malus sylvestris (L.) Mill. -- not accepted -- European crab apple, European crabapple
  Malus sylvestris auct. non (L.) Mill. -- not accepted
  Malus sylvestris var. praecox (Pall.) Ponomar. -- not accepted -- European crab apple
  Malus theifera Rehder -- not accepted
  Malus toringo (K. Koch) Carrière -- not accepted -- toringa crab apple, toringo crab
  Malus toringo (Siebold) de Vriese -- not accepted -- toringa crab apple, toringo crab
  Malus toringoides (Rehder) Hughes -- accepted -- cutleaf crab apple
  Malus transitoria (Batalin) C.K. Schneid. -- accepted
  Malus tschonoskii (Maxim.) C.K. Schneid. -- accepted -- pillar apple
  Malus X arnoldiana (Rehder) Sarg. ex Rehder -- accepted -- Arnold's apple
  Malus X asiatica Nakai -- accepted
  Malus X dawsoniana Rehder -- accepted
  Malus X hartwigii Koehne -- accepted
  Malus X magdeburgensis Hartwig -- accepted -- malus
  Malus X micromalus Makino -- accepted -- Kaido crab apple, malus
  Malus X platycarpa Redher (pro sp.) -- not accepted -- bigfruit crab
  Malus X purpurea (A. Barbier) Rehder -- accepted
  Malus X purpurea f. eleyi (Bean) Rehder -- not accepted
  Malus X robusta (Carrière) Rehder -- accepted -- Siberian crab apple
  Malus X scheideckeri Spath ex Zabel -- accepted
  Malus X soulardii (L.H. Bailey) Britton (pro sp.) -- accepted -- Soulard crab
  Malus X zumi (Matsum.) Rehder (pro sp.) -- accepted -- o-zumi
  Malus X zumi var. calocarpa (Rehder) Rehder -- not accepted
  Malus yunnanensis (Franch.) C.K. Schneid. -- accepted
  Malus yunnanensis var. veitchii (Osborn) Rehder -- accepted
  Malus zumi (Matsum.) Rehder -- not accepted
  Manteia Raf. -- not accepted
  Melanobatus Greene -- not accepted
  Melanobatus bernardinus Greene -- not accepted
  Melanobatus glaucifolius (Kellogg) Greene -- not accepted
  Melanobatus leucodermis (Douglas ex Torr. & A. Gray) Greene -- not accepted
  Mespilus L. -- not accepted
  Mespilus arborea F. Michx. -- not accepted
  Mespilus arbutifolia L. -- not accepted
  Mespilus arbutifolia var. melanocarpa Michx. -- not accepted
  Mespilus calpodendron Ehrh. -- not accepted
  Mespilus canadensis L. -- not accepted
  Mespilus canadensis var. obovalis Michx. -- not accepted
  Mespilus canescens J.B. Phipps -- not accepted -- Stern's medlar
  Mespilus cordata Mill. -- not accepted
  Mespilus crenulata D. Don -- not accepted
  Mespilus germanica L. -- not accepted -- common medlar, medlar
  Mespilus japonica Thunb. -- not accepted
  Mespilus laevigata Poir. -- not accepted
  Mespilus phaenopyrum L. f. -- not accepted
  Mespilus prunifolia Marshall -- not accepted
  Mespilus pyracantha L. -- not accepted
  Neillia D. Don -- accepted
  Neillia incisa (Thunb.) S.H. Oh -- accepted -- laceshrub
  Neillia monogyna var. alternans M.E. Jones -- not accepted
  Neviusia A. Gray -- accepted -- snow-wreath
  Neviusia alabamensis A. Gray -- accepted -- Alabama snow-wreath
  Neviusia cliftonii Shevock, Ertter & D.W. Taylor -- accepted -- Shasta snow-wreath
  Novosieversia glacialis (Adams ex Fisch. & C.A. Mey.) F. Bolle -- not accepted
  Nuttallia cerasiformis Torr. & A. Gray ex Hook. & Arn. -- not accepted
  Oemleria Rchb. -- accepted
  Oemleria cerasiformis (Torr. & A. Gray ex Hook. & Arn.) J.W. Landon -- accepted -- Indian plum
  Opulaster alabamensis Rydb. -- not accepted
  Opulaster australis Rydb. -- not accepted
  Opulaster intermedius Rydb. -- not accepted
  Opulaster opulifolius (L.) Kuntze -- not accepted
  Opulaster pauciflorus (Torr. & A. Gray) A. Heller -- not accepted
  Opulaster stellatus Rydb. -- not accepted
  Oreobatus Rydb. -- not accepted
  Oreobatus deliciosus (Torr.) Rydb. -- not accepted
  Oreobatus deliciosus ssp. neomexicanus (A. Gray) W.A. Weber -- not accepted
  Oreobatus neomexicanus (A. Gray) Rydb. -- not accepted
  Oreobatus rubicundus Wooton & Standl. -- not accepted
  Osmaronia cerasiformis (Torr. & A. Gray ex Hook. & Arn.) Greene -- not accepted
  Osmaronia cerasiformis var. lancifolia Greene -- not accepted
  Osteomeles Lindl. -- accepted
  Osteomeles anthyllidifolia (Sm.) Lindl. -- accepted -- Hawai'i hawthorn
  Osteomeles schwerinae C.K. Schneid. -- accepted
  Padus alabamensis (C. Mohr) Small -- not accepted
  Padus australis (Beadle) Beadle -- not accepted
  Padus caroliniana Mill. -- not accepted
  Padus cuthbertii (Small) Small -- not accepted
  Padus melanocarpa (A. Nelson) Shafer -- not accepted
  Padus nana (Du Roi) Borkh. -- not accepted
  Padus rufula Wooton & Standl. -- not accepted
  Padus virginiana (L.) Mill. -- not accepted
  Padus virginiana (L.) M. Roem. -- not accepted
  Padus virginiana ssp. melanocarpa (A. Nelson) W.A. Weber -- not accepted
  Parmena Greene -- not accepted
  Pentaphylloides Duhamel -- not accepted -- cinquefoil
  Pentaphylloides floribunda (Pursh) Á. Löve -- not accepted -- shrubby cinquefoil
  Pentaphylloides fruticosa (L.) O. Schwarz -- not accepted
  Peraphyllum Nutt. -- accepted
  Peraphyllum ramosissimum Nutt. -- accepted -- squaw apple, squawapple, wild crab apple
  Persica vulgaris Mill. -- not accepted
  Petrophyton Rydb. -- not accepted -- rock spirea, rockmat, rockspirea
  Petrophyton acuminatum Rydb. -- not accepted -- big arroyo rockmat
  Petrophyton caespitosum (Nutt.) Rydb. -- not accepted -- mat rockspirea, rockspirea, tufted rockmat
  Petrophyton caespitosum ssp. acuminatum (Rydb.) Munz -- not accepted
  Petrophyton caespitosum var. caespitosum (Nutt.) Rydb. -- not accepted -- mat rockspirea, Rocky Mountain rockmat, Rocky Mountain rockspirea
  Petrophyton caespitosum var. elatius (S. Watson) Tidestr. -- not accepted -- mat rockspirea, Rocky Mountain rockspirea
  Petrophyton cinerascens (Piper) Rydb. -- not accepted -- halfshrub rockmat
  Petrophyton hendersonii (Canby) Rydb. -- not accepted -- Olympic Mountain rockmat
  Petrophytum (Nutt. ex Torr. & A. Gray) Rydb. -- accepted -- rockspirea
  Petrophytum acuminatum Rydb. -- not accepted -- big arroyo rockmat
  Petrophytum caespitosum (Nutt.) Rydb. -- accepted -- mat rockspirea
  Petrophytum caespitosum ssp. acuminatum (Rydb.) Munz -- accepted
  Petrophytum caespitosum ssp. caespitosum (Nutt.) Rydb. -- accepted -- rock spiraea
  Petrophytum caespitosum var. caespitosum (Nutt.) Rydb. -- not accepted -- mat rockspirea
  Petrophytum caespitosum var. elatius (S. Watson) Tidestr. -- not accepted -- mat rockspirea
  Petrophytum cinerascens (Piper) Rydb. -- accepted -- chelan rockmat, halfshrub rockmat
  Petrophytum hendersonii (Canby) Rydb. -- accepted -- Olympic Mountain rockmat
  Photinia Lindl. -- accepted -- chokeberry
  Photinia arbutifolia Lindl. -- not accepted
  Photinia arbutifolia var. cerina Jeps. -- not accepted
  Photinia davidiana (Decne.) Cardot -- not accepted -- Chinese photinia
  Photinia floribunda (Lindl.) K.R. Robertson & J.B. Phipps -- not accepted -- purple chokeberry
  Photinia fortuneana Maxim. -- not accepted
  Photinia glabra (Thunb.) Maxim. -- accepted -- Japanese photinia
  Photinia melanocarpa (Michx.) K.R. Robertson & J.B. Phipps -- not accepted -- black chokeberry
  Photinia niitakayamensis Hayata -- accepted
  Photinia pyrifolia (Lam.) K.R. Robertson & J.B. Phipps -- not accepted -- red chokeberry
  Photinia rubrolutea H. Lév. -- not accepted
  Photinia salicifolia C. Presl -- not accepted
  Photinia serratifolia (Desf.) Kalkm. -- accepted -- Taiwanese photinia
  Photinia serrulata Lindl. -- not accepted
  Photinia villosa (Thunb.) DC. -- accepted -- oriental photinia, Oriental photinia
  Photinia villosa var. laevis (Thunb.) Dippel -- accepted
  Photinia villosa var. sinica Rehder & E.H. Wilson -- accepted
  Photinia X fraseri Dress -- accepted -- Fraser's photinia
  Physocarpus (Camb.) Raf. -- accepted -- ninebark
  Physocarpus alternans (M.E. Jones) J.T. Howell -- accepted -- dwarf ninebark
  Physocarpus alternans ssp. alternans (M.E. Jones) J.T. Howell -- not accepted -- dwarf ninebark
  Physocarpus alternans ssp. annulatus J.T. Howell -- not accepted -- dwarf ninebark
  Physocarpus alternans ssp. panamintensis J.T. Howell -- not accepted -- dwarf ninebark
  Physocarpus amurensis (Maxim.) Maxim. -- accepted
  Physocarpus bracteatus (Rydb.) Rehder -- accepted
  Physocarpus capitatus (Pursh) Kuntze -- accepted -- Pacific ninebark
  Physocarpus intermedius (Rydb.) C.K. Schneid. -- accepted -- Atlantic ninebark
  Physocarpus malvaceus (Greene) Kuntze -- accepted -- mallow ninebark
  Physocarpus monogynus (Torr.) J.M. Coult. -- accepted -- mountain ninebark
  Physocarpus opulifolius (L.) Maxim. -- accepted -- Atlantic ninebark, common ninebark, ninebark
  Physocarpus opulifolius f. nanus (G. Kirchn.) Zabel -- not accepted
  Physocarpus opulifolius var. intermedius (Rydb.) B.L. Rob. -- not accepted -- Atlantic ninebark
  Physocarpus opulifolius var. opulifolius (L.) Maxim. -- not accepted -- common ninebark
  Physocarpus opulifolius var. tomentellus (Ser.) B. Boivin -- not accepted
  Physocarpus pauciflorus (Torr. & A. Gray) Piper -- not accepted
  Physocarpus torreyi (S. Watson) Maxim. -- not accepted
  Porteranthus Britton -- not accepted -- porteranthus
  Porteranthus stipulatus (Muhl. ex Willd.) Britton -- not accepted -- Indian physic
  Porteranthus trifoliatus (L.) Britton -- not accepted -- Bowman's root
  Potentilla L. -- accepted -- cinquefoil, Potentilles
  Potentilla acuminata H.M. Hall -- not accepted -- tapertip cinquefoil
  Potentilla alaskana Rydb. -- not accepted
  Potentilla alba L. -- accepted -- white cinquefoil
  Potentilla albiflora L.O. Williams -- accepted -- Pinaleno cinquefoil, white-flower cinquefoil, whiteflower cinquefoil
  Potentilla alpestris Hallier f. -- not accepted
  Potentilla altaica Bunge -- not accepted
  Potentilla ambigens Greene -- accepted -- silkyleaf cinquefoil
  Potentilla anachoretica Soják -- accepted
  Potentilla angelliae N.H. Holmgren -- accepted -- Angell cinquefoil, Boulder Mountain cinquefoil
  Potentilla anglica Laichard. -- accepted -- English cinquefoil
  Potentilla angustata Rydb. -- not accepted
  Potentilla anomalifolia M. Peck -- not accepted
  Potentilla anomalofolia M. Peck -- not accepted
  Potentilla anserina L. -- accepted -- silverweed cinquefoil
  Potentilla anserina ssp. anserina L. -- accepted -- silverweed cinquefoil
  Potentilla anserina ssp. egedii (Wormsk.) Hiitonen -- accepted
  Potentilla anserina ssp. pacifica (Howell) Rousi -- accepted -- Pacific silverweed
  Potentilla anserina ssp. yukonensis (Hultén) Soják ex Elven & D.F. Murray -- accepted -- Yukon silverweed
  Potentilla anserina var. anserina L. -- not accepted
  Potentilla anserina var. concolor Ser. -- not accepted
  Potentilla anserina var. grandis Torr. & A. Gray -- not accepted
  Potentilla anserina var. groenlandica Tratt. -- not accepted
  Potentilla anserina var. lanata B. Boivin -- not accepted
  Potentilla anserina var. rolandii (B. Boivin) B. Boivin -- not accepted
  Potentilla anserina var. sericea Hayne -- not accepted
  Potentilla anserina var. yukonensis (Hultén) B. Boivin -- not accepted
  Potentilla aperta J.T. Howell -- not accepted
  Potentilla arenosa (Turcz.) Juz. -- accepted
  Potentilla arenosa ssp. arenosa (Turcz.) Juz. -- accepted -- Bluff cinquefoil
  Potentilla arenosa ssp. chamissonis (Hultén) Elven & D.F. Murray -- accepted -- Bluff cinquefoil
  Potentilla argentea L. -- accepted -- silver cinquefoil, silver-leaf cinquefoil
  Potentilla argentea var. argentea L. -- not accepted -- silver cinquefoil, silver-leaf cinquefoil
  Potentilla argentea var. pseudocalabra Th. Wolf -- not accepted -- silver cinquefoil
  Potentilla arguta Pursh -- not accepted -- tall cinquefoil
  Potentilla arguta ssp. arguta Pursh -- not accepted -- tall cinquefoil
  Potentilla arguta ssp. convallaria (Rydb.) D.D. Keck -- not accepted -- cream cinquefoil
  Potentilla arguta var. convallaria (Rydb.) Th. Wolf -- not accepted
  Potentilla argyrea Rydb. -- not accepted
  Potentilla argyrocoma (Rydb.) Jeps. -- not accepted
  Potentilla arizonica Greene -- accepted -- Garland Prairie cinquefoil
  Potentilla ashlandica Greene -- not accepted
  Potentilla atrorubens Rydb. -- not accepted
  Potentilla atrosanguinea Lodd., G. Lodd. & W. Lodd. -- accepted -- Himalayan cinquefoil, ruby cinquefoil
  Potentilla atrovirens Rydb. -- not accepted
  Potentilla baileyi (S. Watson) Greene -- not accepted
  Potentilla baileyi var. setosa (S. Watson) J.T. Howell -- not accepted
  Potentilla bakeri Rydb. -- not accepted
  Potentilla basaltica Tiehm & Ertter -- accepted -- Soldier Meadow cinquefoil
  Potentilla beanii Clokey -- not accepted
  Potentilla bicrenata Rydb. -- accepted
  Potentilla biennis Greene -- accepted -- biennial cinquefoil
  Potentilla biflora Willd. ex Schltdl. -- accepted -- twoflower cinquefoil
  Potentilla bimundorum Soják -- accepted -- staghorn cinquefoil
  Potentilla bipinnatifida Douglas ex Hook. -- accepted -- tansy cinquefoil
  Potentilla bipinnatifida var. bipinnatifida Douglas ex Hook. -- not accepted -- tansy cinquefoil
  Potentilla bipinnatifida var. glabrata (Lehm. ex Hook.) Kohli & Packer -- not accepted -- tansy cinquefoil
  Potentilla blasckeana Turcz. ex Lehm. -- not accepted
  Potentilla blasckeana var. permollis (Rydb.) Th. Wolf -- not accepted
  Potentilla bolanderi (A. Gray) Greene -- not accepted
  Potentilla bolanderi var. clevelandii (Greene) Jeps. -- not accepted
  Potentilla bolanderi var. parryi (S. Watson) Munz & I.M. Johnst. -- not accepted
  Potentilla brevifolia Nutt. -- accepted -- sparseleaf cinquefoil
  Potentilla breweri S. Watson -- accepted
  Potentilla breweri var. expansa S. Watson -- not accepted
  Potentilla brooksensis Jurtzev -- not accepted
  Potentilla bruceae Rydb. -- accepted -- Bruce's cinquefoil
  Potentilla brunnescens Rydb. -- not accepted
  Potentilla buccoana Clementi -- accepted
  Potentilla californica (Cham. & Schltdl.) Greene -- not accepted
  Potentilla californica var. elata Greene -- not accepted
  Potentilla californica var. frondosa Greene -- not accepted
  Potentilla callida H.M. Hall -- not accepted
  Potentilla campestris (M.E. Jones) Jeps. -- not accepted
  Potentilla camporum Rydb. -- not accepted
  Potentilla canadensis L. -- accepted -- dwarf cinquefoil
  Potentilla canadensis var. canadensis L. -- not accepted -- dwarf cinquefoil
  Potentilla canadensis var. pumila (Poir.) Torr. & A. Gray -- not accepted
  Potentilla canadensis var. simplex (Michx.) Torr. & A. Gray -- not accepted
  Potentilla canadensis var. villosissima Fernald -- not accepted -- dwarf cinquefoil
  Potentilla canescens Besser -- not accepted
  Potentilla caroliniana Poir. -- not accepted
  Potentilla caruifolia (Rydb. ex Howell) Crum -- not accepted
  Potentilla caruifolia var. divergens Crum -- not accepted
  Potentilla chamissonis Hultén -- not accepted
  Potentilla chrysantha ssp. thuringiaca (Bernhardi ex Link) Simonk. -- not accepted
  Potentilla ciliata Howell -- not accepted
  Potentilla clevelandii Greene -- not accepted
  Potentilla collina Wibel -- accepted -- palmleaf cinquefoil
  Potentilla concinna Richardson -- accepted -- elegant cinquefoil, red cinquefoil
  Potentilla concinna var. bicrenata (Rydb.) S.L. Welsh & B.C. Johnst. -- not accepted -- elegant cinquefoil, red cinquefoil
  Potentilla concinna var. concinna Richardson -- accepted -- elegant cinquefoil, red cinquefoil
  Potentilla concinna var. dissecta (S. Watson) B. Boivin -- not accepted
  Potentilla concinna var. divisa Rydb. -- accepted
  Potentilla concinna var. macounii (Rydb.) C.L. Hitchc. -- not accepted
  Potentilla concinna var. modesta (Rydb.) S.L. Welsh & B.C. Johnst. -- not accepted -- red cinquefoil
  Potentilla concinna var. proxima (Rydb.) S.L. Welsh & B.C. Johnst. -- accepted -- elegant cinquefoil, red cinquefoil
  Potentilla concinna var. rubripes (Rydb.) C.L. Hitchc. -- not accepted
  Potentilla congesta (Douglas ex Hook.) Baill. -- not accepted
  Potentilla congesta var. nemorosa (D.D. Keck) J.T. Howell -- not accepted
  Potentilla convallaria Rydb. -- not accepted
  Potentilla cottamii N.H. Holmgren -- accepted -- Cottam's cinquefoil, Pilot Range cinquefoil
  Potentilla crantzii (Crantz) G. Beck ex Fritsch -- accepted -- alpine cinquefoil
  Potentilla crantzii var. hirta Lange -- not accepted
  Potentilla crebridens Juz. -- accepted
  Potentilla crebridens ssp. hemicryophila Jurtzev -- accepted
  Potentilla crinata A. Gray -- not accepted
  Potentilla crinita A. Gray -- accepted -- bearded cinquefoil
  Potentilla crinita var. crinita A. Gray -- not accepted -- bearded cinquefoil
  Potentilla crinita var. lemmonii (S. Watson) Kearney & Peebles -- not accepted -- Lemmon's cinquefoil
  Potentilla cristae Ferlatte & Strother -- accepted -- crested cinquefoil
  Potentilla cryptocaulis Clokey -- not accepted
  Potentilla daucifolia Greene -- not accepted
  Potentilla daucifolia var. indicta Jeps. -- not accepted
  Potentilla decurrens (S. Watson) Rydb. -- not accepted
  Potentilla demotica Ertter -- accepted -- Hualapai cinquefoil
  Potentilla dissecta var. decurrens S. Watson -- not accepted
  Potentilla diversifolia Lehm. -- not accepted -- mountain-meadow cinquefoil, varileaf cinquefoil
  Potentilla diversifolia ssp. glaucophylla (Lehm.) Lehm. -- not accepted
  Potentilla diversifolia ssp. ranunculus (Lange) A.E. Porsild -- not accepted
  Potentilla diversifolia var. decurrens (S. Watson) Th. Wolf -- not accepted
  Potentilla diversifolia var. diversifolia Lehm. -- not accepted -- mountain-meadow cinquefoil, varileaf cinquefoil
  Potentilla diversifolia var. glaucophylla (Lehm.) S. Watson -- not accepted
  Potentilla diversifolia var. multisecta S. Watson -- not accepted
  Potentilla diversifolia var. perdissecta (Rydb.) C.L. Hitchc. -- not accepted -- mountain-meadow cinquefoil, mountainmeadow cinquefoil
  Potentilla diversifolia var. ranunculus (Lange) B. Boivin -- not accepted -- mountainmeadow cinquefoil
  Potentilla divisa (Rydb.) Rydb. -- not accepted
  Potentilla douglasii Greene -- not accepted
  Potentilla douglasii var. filicoides Crum -- not accepted -- pinewoods horkelia
  Potentilla douglasii var. parviflora (Nutt. ex Hook. & Arn.) J.T. Howell -- not accepted -- pinewoods horkelia
  Potentilla douglasii var. pseudocapitata (Rydb. ex Howell) Jeps. -- not accepted -- pinewoods horkelia
  Potentilla douglasii var. tenella (S. Watson) Greene -- not accepted -- pinewoods horkelia
  Potentilla drummondii Lehm. -- accepted -- Drummond's cinquefoil
  Potentilla drummondii ssp. breweri (S. Watson) Ertter -- not accepted -- Brewer's cinquefoil, Drummond's cinquefoil
  Potentilla drummondii ssp. bruceae (Rydb.) D.D. Keck -- not accepted -- Drummond's cinquefoil
  Potentilla drummondii ssp. drummondii Lehm. -- not accepted -- Drummond's cinquefoil
  Potentilla drummondii var. breweri (S. Watson) N.H. Holmgren -- not accepted
  Potentilla drummondii var. bruceae (Rydb.) N.H. Holmgren -- not accepted
  Potentilla effusa Douglas ex Lehm. -- accepted -- branched cinquefoil
  Potentilla effusa var. effusa Douglas ex Lehm. -- accepted -- branched cinquefoil
  Potentilla effusa var. filicaulis Nutt. -- not accepted
  Potentilla effusa var. gossypina Nutt. ex Torr. & A. Gray -- not accepted
  Potentilla effusa var. rupincola (Osterh.) Th. Wolf -- accepted -- branched cinquefoil, Front Range cinquefoil, rock cinquefoil, rockloving cinquefoil
  Potentilla egedii Wormsk. -- not accepted
  Potentilla egedii ssp. grandis (Torr. & A. Gray) Hultén -- not accepted
  Potentilla egedii ssp. pacifica (Howell) L.A. Sergienko -- not accepted
  Potentilla egedii ssp. yukonensis (Hultén) Hultén -- not accepted
  Potentilla egedii var. grandis (Torr. & A. Gray) J.T. Howell -- not accepted
  Potentilla egedii var. groenlandica (Tratt.) Polunin -- not accepted
  Potentilla elegans Cham. & Schltdl. -- accepted -- silverweed
  Potentilla elmeri Rydb. -- not accepted
  Potentilla emarginata Pursh -- not accepted
  Potentilla emarginata ssp. nana (Willd. ex Schltdl.) Hultén -- not accepted
  Potentilla erecta (L.) Raeusch. -- accepted -- erect cinquefoil
  Potentilla eremica Coville -- not accepted
  Potentilla etomentosa Rydb. -- not accepted
  Potentilla etomentosa var. hallii (Rydb.) Abrams -- not accepted
  Potentilla fastigiata Nutt. -- not accepted
  Potentilla fastigiata var. jucunda (A. Nelson) Soják -- not accepted
  Potentilla fastigiata var. permollis (Rydb.) Soják -- not accepted
  Potentilla finitima Kohli & Packer -- not accepted
  Potentilla fissa Nutt. -- not accepted -- bigflower cinquefoil
  Potentilla flabellifolia Hook. ex Torr. & A. Gray -- accepted -- high mountain cinquefoil, Mount Rainier cinquefoil
  Potentilla flabellifolia var. emarginata (Pursh) B. Boivin -- not accepted
  Potentilla flabellifolia var. grayi (S. Watson) Jeps. -- not accepted
  Potentilla flabellifolia var. hirta (Lange) B. Boivin -- not accepted
  Potentilla flabelliformis Lehm. -- not accepted
  Potentilla flabelliformis var. ctenophora Rydb. -- not accepted
  Potentilla flabelliformis var. inyoensis Jeps. -- not accepted
  Potentilla floribunda Pursh -- not accepted
  Potentilla fragiformis Willd. ex Schltdl. -- accepted -- strawberry cinquefoil
  Potentilla frondosa Greene -- not accepted
  Potentilla fruticosa auct. non L. -- not accepted -- bush cinquefoil, golden hardhack, shrubby cinquefoil, widdy
  Potentilla fruticosa ssp. floribunda (Pursh) Elkington -- not accepted
  Potentilla fruticosa var. farreri Besant -- not accepted
  Potentilla fruticosa var. fruticosa auct. non L. -- not accepted
  Potentilla fruticosa var. tenuifolia (Willd. ex Schltdl.) Lehm. -- not accepted
  Potentilla fruticosa var. villosissima Fernald -- not accepted
  Potentilla furcata A.E. Porsild -- accepted -- forked cinquefoil
  Potentilla glabella Rydb. -- not accepted
  Potentilla glabrella Rydb. -- not accepted
  Potentilla glandulosa Lindl. -- not accepted -- gland cinquefoil, sticky cinquefoil
  Potentilla glandulosa ssp. arizonica (Rydb.) D.D. Keck -- not accepted -- Arizona cinquefoil
  Potentilla glandulosa ssp. ashlandica (Greene) D.D. Keck -- not accepted -- Ashland cinquefoil
  Potentilla glandulosa ssp. ewanii D.D. Keck -- not accepted -- Ewan's cinquefoil
  Potentilla glandulosa ssp. glabrata (Rydb.) D.D. Keck -- not accepted -- sticky cinquefoil
  Potentilla glandulosa ssp. glandulosa Lindl. -- not accepted -- sticky cinquefoil
  Potentilla glandulosa ssp. globosa D.D. Keck -- not accepted -- sticky cinquefoil
  Potentilla glandulosa ssp. hansenii (Greene) D.D. Keck -- not accepted -- Hansen's cinquefoil
  Potentilla glandulosa ssp. micropetala (Rydb.) D.D. Keck -- not accepted -- smallpetal cinquefoil
  Potentilla glandulosa ssp. nevadensis (S. Watson) D.D. Keck -- not accepted -- Nevada cinquefoil
  Potentilla glandulosa ssp. pseudorupestris (Rydb.) D.D. Keck -- not accepted -- sticky cinquefoil
  Potentilla glandulosa ssp. reflexa (Greene) D.D. Keck -- not accepted -- sticky cinquefoil
  Potentilla glandulosa ssp. typica D.D. Keck -- not accepted
  Potentilla glandulosa var. austinae Jeps. -- not accepted
  Potentilla glandulosa var. campanulata C.L. Hitchc. -- not accepted
  Potentilla glandulosa var. incisa Lindl. -- not accepted
  Potentilla glandulosa var. intermedia (Rydb.) C.L. Hitchc. -- not accepted
  Potentilla glandulosa var. lactea Greene -- not accepted
  Potentilla glandulosa var. micropetala (Rydb.) S.L. Welsh & B.C. Johnst. -- not accepted
  Potentilla glandulosa var. nevadensis S. Watson -- not accepted
  Potentilla glandulosa var. pseudorupestris (Rydb.) Breitung -- not accepted
  Potentilla glandulosa var. reflexa Greene -- not accepted
  Potentilla glandulosa var. wrangelliana (Fisch. & Avé-Lall.) Th. Wolf -- not accepted
  Potentilla glaucophylla Lehm. -- accepted
  Potentilla glaucophylla var. glaucophylla Lehm. -- accepted
  Potentilla glaucophylla var. perdissecta (Rydb.) Soják -- accepted -- mountainmeadow cinquefoil
  Potentilla glomerata A. Nelson -- not accepted
  Potentilla goldbachii Rupr. -- not accepted
  Potentilla gordonii (Hook.) Greene -- not accepted
  Potentilla gordonii var. chaetophora (Rydb.) Jeps. -- not accepted
  Potentilla gracilis Douglas ex Hook. -- accepted -- graceful cinquefoil, northwest cinquefoil, slender cinquefoil
  Potentilla gracilis ssp. nuttallii (Lehm.) D.D. Keck -- not accepted
  Potentilla gracilis var. blasckeana (Turcz. ex Lehm.) Jeps. -- not accepted
  Potentilla gracilis var. brunnescens (Rydb.) C.L. Hitchc. -- not accepted -- sagebrush cinquefoil, slender cinquefoil
  Potentilla gracilis var. ctenophora (Rydb.) B. Boivin -- not accepted
  Potentilla gracilis var. elmeri (Rydb.) Jeps. -- accepted
  Potentilla gracilis var. fastigiata (Nutt.) S. Watson -- accepted -- northwest cinquefoil, Nuttall's cinquefoil, slender cinquefoil
  Potentilla gracilis var. filipes (Rydb.) B. Boivin -- not accepted
  Potentilla gracilis var. flabelliformis (Lehm.) Nutt. ex Torr. & A. Gray -- accepted -- fanleaf cinquefoil, slender cinquefoil
  Potentilla gracilis var. glabrata (Lehm.) C.L. Hitchc. -- not accepted
  Potentilla gracilis var. gracilis Douglas ex Hook. -- accepted -- graceful cinquefoil
  Potentilla gracilis var. hallii (Rydb.) Th. Wolf -- not accepted
  Potentilla gracilis var. nuttallii (Lehm.) Sheldon -- not accepted
  Potentilla gracilis var. owyheensis Ertter & D.H. Mansfield -- accepted -- Owyhee cinquefoil
  Potentilla gracilis var. permollis (Rydb.) C.L. Hitchc. -- not accepted
  Potentilla gracilis var. pulcherrima (Lehm.) Fernald -- not accepted
  Potentilla gracilis var. rigida S. Watson -- not accepted
  Potentilla grayi S. Watson -- accepted -- Gray's cinquefoil
  Potentilla hansenii Greene -- not accepted
  Potentilla heidenreichii Zimm. -- not accepted
  Potentilla hendersonii (J.T. Howell) J.T. Howell -- not accepted
  Potentilla hickmanii Eastw. -- accepted -- Hickman's cinquefoil, Hickman's potentilla
  Potentilla hippiana Lehm. -- accepted -- horse cinquefoil, woolly cinquefoil
  Potentilla hippiana ssp. effusa (Douglas ex Lehm.) Dorn -- not accepted
  Potentilla hippiana var. argyrea (Rydb.) B. Boivin -- not accepted -- woolly cinquefoil
  Potentilla hippiana var. diffusa A. Gray ex Lehm. -- not accepted
  Potentilla hippiana var. filicaulis (Nutt.) B. Boivin -- not accepted
  Potentilla hippiana var. hippiana Lehm. -- not accepted -- woolly cinquefoil
  Potentilla hispidula (Rydb.) Jeps. -- not accepted
  Potentilla holmgrenii D.F. Murray & Elven -- accepted -- Holmgren's cinquefoil
  Potentilla hookeriana Lehm. -- not accepted -- Hooker's cinquefoil
  Potentilla hookeriana ssp. chamissonis (Hultén) Hultén -- not accepted -- Hooker's cinquefoil
  Potentilla hookeriana ssp. hookeriana Lehm. -- not accepted -- Hooker's cinquefoil
  Potentilla hookeriana ssp. hookeriana var. furcata (A.E. Porsild) Hultén -- not accepted -- Hooker's cinquefoil
  Potentilla hookeriana ssp. hookeriana var. hookeriana Lehm. -- not accepted -- Hooker's cinquefoil
  Potentilla hookeriana ssp. hookeriana var. umanakensis Hultén -- not accepted -- Hooker's cinquefoil
  Potentilla hookeriana var. furcata (A.E. Porsild) Hultén -- not accepted
  Potentilla hookeriana var. hookerana Lehm. -- not accepted
  Potentilla hookeriana var. umanakensis Hultén -- not accepted
  Potentilla howellii Greene -- not accepted
  Potentilla hyparctica Malte -- accepted
  Potentilla hyparctica ssp. elatior (Abrom.) Elven & D.F. Murray -- accepted
  Potentilla hyparctica ssp. hyparctica Malte -- accepted
  Potentilla hyparctica ssp. nana (Willd. ex Schltdl.) Hultén -- not accepted
  Potentilla hyparctica ssp. robbinsiana (Lehm.) Á. Löve & D. Löve -- not accepted
  Potentilla hyparctica var. elatior (Abrom.) Fernald -- not accepted
  Potentilla hyparctica var. hyparctica Malte -- not accepted
  Potentilla inclinata Vill. -- accepted -- ashy cinquefoil
  Potentilla indiges M. Peck -- not accepted
  Potentilla intermedia L. -- accepted -- downy cinquefoil
  Potentilla intermedia var. canescens (Besser) Wahlenb. -- not accepted
  Potentilla jaegeri (Munz & I.M. Johnst.) L.C. Wheeler -- not accepted
  Potentilla jepsonii Ertter -- accepted
  Potentilla johnstonii Soják -- accepted -- sagebrush cinquefoil
  Potentilla jucunda A. Nelson -- not accepted
  Potentilla kelloggii (Greene) Greene -- not accepted
  Potentilla kelloggii var. cuneata (Lindl.) Hoover -- not accepted
  Potentilla kelloggii var. marinensis (Elmer) Jeps. -- not accepted
  Potentilla kelloggii var. puberula (Rydb.) Hoover -- not accepted
  Potentilla kingii (S. Watson) Greene -- not accepted
  Potentilla klamathensis Rydb. -- not accepted
  Potentilla kuznetzovii (Govor.) Juz. -- not accepted
  Potentilla kuznetzowii (Govor.) Juz. -- not accepted
  Potentilla langeana Rydb. -- not accepted
  Potentilla lasiodonta Rydb. -- accepted -- Sandhills cinquefoil
  Potentilla ledebouriana A.E. Porsild -- not accepted
  Potentilla lemmonii (S. Watson) Greene -- not accepted
  Potentilla leneophylla Torr. & James ex Eaton -- not accepted
  Potentilla leucocarpa Rydb. -- not accepted
  Potentilla leucophylla Torr. -- not accepted
  Potentilla lindleyi Greene -- not accepted
  Potentilla lindleyi var. puberula (Rydb.) J.T. Howell -- not accepted
  Potentilla lindleyi var. sericea (A. Gray) J.T. Howell -- not accepted
  Potentilla litoralis Rydb. -- accepted -- Pennsylvania cinquefoil
  Potentilla litoralis var. ovium (Jeps.) Soják -- not accepted
  Potentilla longipedunculata Rydb. -- not accepted
  Potentilla lycopodioides (A. Gray) Baill. ex J.T. Howell -- not accepted
  Potentilla lycopodioides var. megalopetala (Rydb.) J.T. Howell -- not accepted
  Potentilla lycopodioides var. scandularis (Rydb.) J.T. Howell -- not accepted
  Potentilla macdougalii Tidestr. -- not accepted
  Potentilla macounii Rydb. -- accepted -- Macoun's cinquefoil
  Potentilla macropetala Rydb. -- not accepted
  Potentilla maculata Pourr. -- not accepted
  Potentilla marinensis (Elmer) J.T. Howell -- not accepted
  Potentilla matsuokana Makino -- accepted -- arctic cinquefoil
  Potentilla matsuokana ssp. hemicryophila (Jurtzev) Soják -- not accepted
  Potentilla micheneri Greene -- not accepted
  Potentilla millefolia Rydb. -- accepted -- cutleaf cinquefoil, manyleaf cinquefoil
  Potentilla millefolia var. klamathensis (Rydb.) Jeps. -- not accepted -- Klamath cinquefoil
  Potentilla millefolia var. millefolia Rydb. -- not accepted -- cutleaf cinquefoil
  Potentilla millegrana Engelm. ex Lehm. -- not accepted
  Potentilla minima var. robbinsiana Lehm. -- not accepted
  Potentilla minutifolia Rydb. -- not accepted
  Potentilla modesta Rydb. -- accepted -- Uintah cinquefoil
  Potentilla monidensis A. Nelson -- not accepted
  Potentilla monspeliensis L. -- not accepted
  Potentilla morefieldii Ertter -- accepted -- Morefield's cinquefoil
  Potentilla muirii (A. Gray) Greene -- not accepted
  Potentilla multifida auct. non L. -- not accepted -- staghorn cinquefoil
  Potentilla multifoliolata (Torr.) Kearney & Peebles -- not accepted
  Potentilla multijuga Lehm. -- accepted -- Ballona cinquefoil
  Potentilla multisecta (S. Watson) Rydb. -- accepted -- alpine cinquefoil, featherleaf cinquefoil
  Potentilla nana Willd. ex Schltdl. -- accepted -- arctic cinquefoil
  Potentilla nelsoniana Rydb. -- not accepted
  Potentilla nestleriana Tratt. -- not accepted
  Potentilla neumanniana Rchb. -- not accepted -- spring cinquefoil
  Potentilla newberryi A. Gray -- accepted -- Newberry's cinquefoil
  Potentilla nicolletii (S. Watson) Sheldon -- not accepted
  Potentilla nipharga Rydb. -- not accepted
  Potentilla nivea L. -- accepted -- snow cinquefoil, snowy cinquefoil
  Potentilla nivea ssp. chamissonis (Hultén) Hiitonen -- not accepted
  Potentilla nivea ssp. chionodes Hiitonen -- not accepted
  Potentilla nivea ssp. fallax A.E. Porsild -- not accepted
  Potentilla nivea ssp. hookeriana (Lehm.) Hiitonen -- not accepted
  Potentilla nivea ssp. subquinata (Lange) Hultén -- not accepted
  Potentilla nivea var. dissecta S. Watson -- not accepted
  Potentilla nivea var. macrophylla Ser. -- not accepted
  Potentilla nivea var. nivea L. -- not accepted -- snow cinquefoil
  Potentilla nivea var. pentaphylla Lehm. -- not accepted -- fiveleaf cinquefoil
  Potentilla nivea var. pulchella (R. Br.) Durand -- not accepted
  Potentilla nivea var. subquinata Lange -- not accepted
  Potentilla nivea var. tomentosa Nilsson-Ehle ex Hultén -- not accepted
  Potentilla nivea var. villosa (Pall. ex Pursh) Regel & Tiling -- not accepted
  Potentilla norvegica L. -- accepted -- Norwegian cinquefoil
  Potentilla norvegica ssp. hirsuta (Michx.) Hyl. -- not accepted -- Norwegian cinquefoil
  Potentilla norvegica ssp. monspeliensis (L.) Asch. & Graebn. -- not accepted -- Norwegian cinquefoil
  Potentilla norvegica ssp. norvegica L. -- not accepted -- Norwegian cinquefoil
  Potentilla norvegica var. hirsuta (Michx.) Lehm. -- not accepted
  Potentilla norvegica var. labradorica (Lehm.) Fernald -- not accepted
  Potentilla nubigena Greene -- not accepted
  Potentilla nuttallii Lehm. -- not accepted
  Potentilla oblanceolata Rydb. -- accepted -- New Mexico cinquefoil
  Potentilla osterhoutiana Th. Wolf -- not accepted
  Potentilla osterhoutii (A. Nelson) J.T. Howell -- not accepted
  Potentilla osterhoutii var. saxosa (Brandegee) J.T. Howell -- not accepted
  Potentilla ovina Macoun ex J.M. Macoun -- accepted -- sheep cinquefoil
  Potentilla ovina var. decurrens (S. Watson) S.L. Welsh & B.C. Johnst. -- accepted -- sheep cinquefoil
  Potentilla ovina var. ovina Macoun ex J.M. Macoun -- accepted -- sheep cinquefoil
  Potentilla ovina var. pinnatisecta S. Watson -- not accepted
  Potentilla pacifica Howell -- not accepted
  Potentilla palustris (L.) Scop. -- not accepted
  Potentilla palustris var. parvifolia (Raf.) Fernald & Long -- not accepted
  Potentilla palustris var. villosa (Pers.) Lehm. -- not accepted
  Potentilla paradoxa Nutt. -- not accepted -- bushy cinquefoil, Paradox cinquefoil
  Potentilla parryi (Greene) Greene -- not accepted
  Potentilla parryi var. wilderae (Parish) Jeps. -- not accepted
  Potentilla patellifera J.T. Howell -- not accepted
  Potentilla paucijuga Rydb. -- accepted -- La Sal cinquefoil
  Potentilla pectinata Raf. -- not accepted
  Potentilla pectinisecta Rydb. -- not accepted -- coilleaf cinquefoil, comb-leaf cinquefoil, combleaf cinquefoil
  Potentilla pectinisecta var. comosa (Rydb.) Soják -- not accepted
  Potentilla pedersenii (Rydb.) Rydb. -- accepted
  Potentilla peirsonii Munz -- not accepted
  Potentilla pensylvanica L. -- accepted -- Pennsylvania cinquefoil, prairie cinquefoil
  Potentilla pensylvanica var. arida B. Boivin -- not accepted
  Potentilla pensylvanica var. atrovirens (Rydb.) Th. Wolf -- not accepted -- Pennsylvania cinquefoil
  Potentilla pensylvanica var. bipinnatifida (Douglas ex Hook.) Torr. & A. Gray -- not accepted
  Potentilla pensylvanica var. brevipila Soják -- not accepted
  Potentilla pensylvanica var. glabrata (Lehm. ex Hook.) S. Watson -- not accepted
  Potentilla pensylvanica var. litoralis (Rydb.) B. Boivin -- not accepted -- Pennsylvania cinquefoil
  Potentilla pensylvanica var. ovium Jeps. -- not accepted -- Pennsylvania cinquefoil
  Potentilla pensylvanica var. paucijuga (Rydb.) S.L. Welsh & B.C. Johnst. -- not accepted -- Pennsylvania cinquefoil
  Potentilla pensylvanica var. pectinata Lepage -- not accepted -- Pennsylvania cinquefoil
  Potentilla pensylvanica var. pensylvanica L. -- not accepted -- Pennsylvania cinquefoil
  Potentilla pensylvanica var. strigosa Pursh -- not accepted -- Pennsylvania cinquefoil
  Potentilla pensylvanica var. virgulata (A. Nelson) Th. Wolf -- not accepted -- Pennsylvania cinquefoil
  Potentilla pentandra Engelm. ex Torr. & A. Gray -- not accepted
  Potentilla perdissecta Rydb. -- not accepted
  Potentilla permollis Rydb. -- not accepted
  Potentilla pickeringii (Torr. ex A. Gray) Greene -- not accepted
  Potentilla plattensis Nutt. -- accepted -- Platte cinquefoil, Platte River cinquefoil
  Potentilla plattensis var. klamathensis (Rydb.) Jeps. -- not accepted
  Potentilla plattensis var. leucophylla Greene -- not accepted
  Potentilla plattensis var. millefolia (Rydb.) Jeps. -- not accepted
  Potentilla plattensis var. pedicellata A. Nelson -- not accepted
  Potentilla platyloba Rydb. -- not accepted
  Potentilla procumbens Sibth. -- not accepted
  Potentilla propinqua (Rydb.) Rydb. -- not accepted
  Potentilla prostrata Rottb. -- not accepted
  Potentilla prostrata ssp. floccosa Soják -- not accepted
  Potentilla proxima Rydb. -- not accepted
  Potentilla pseudorupestris Rydb. -- not accepted
  Potentilla pseudosericea auct. non Rydb. -- not accepted
  Potentilla pseudosericea Rydb. -- accepted -- silky cinquefoil
  Potentilla puberula Greene -- not accepted
  Potentilla pulchella R. Br. -- accepted -- pretty cinquefoil
  Potentilla pulchella ssp. gracilicaulis (A.E. Porsild) Jurtzev -- not accepted
  Potentilla pulchella var. elatior Lange -- not accepted -- pretty cinquefoil
  Potentilla pulchella var. gracilicaulis A.E. Porsild -- not accepted -- pretty cinquefoil
  Potentilla pulchella var. pulchella R. Br. -- not accepted -- pretty cinquefoil
  Potentilla pulcherrima Lehm. -- accepted -- beautiful cinquefoil, soft cinquefoil, whiteleaf cinquefoil
  Potentilla pumila Poir. -- not accepted
  Potentilla purpurascens (S. Watson) Greene -- not accepted
  Potentilla purpurascens var. congdonis (Rydb.) Jeps. -- not accepted
  Potentilla quinquefolia (Rydb.) Rydb. -- not accepted
  Potentilla ramulosa Rydb. -- not accepted
  Potentilla ranunculus Lange -- not accepted
  Potentilla recta L. -- accepted -- erect cinquefoil, roughfruit cinquefoil, sulphur cinquefoil
  Potentilla recta var. obscura (Nestler) W.D.J. Koch -- not accepted
  Potentilla recta var. pilosa (Willd.) Ledeb. -- not accepted
  Potentilla recta var. sulphurea (Lam. & DC.) Peyr. -- not accepted
  Potentilla rectiformis Rydb. -- not accepted
  Potentilla reflexa (Greene) Greene -- not accepted
  Potentilla reptans L. -- accepted -- creeping cinquefoil
  Potentilla rhomboidea Rydb. -- not accepted
  Potentilla rhyolitica Ertter -- accepted
  Potentilla rhyolitica var. chiricahuensis Ertter -- accepted -- Chiricahua cinquefoil
  Potentilla rhyolitica var. rhyolitica Ertter -- accepted -- Huachuca cinquefoil
  Potentilla rimicola (Munz & I.M. Johnst.) Ertter -- accepted -- cliff cinquefoil
  Potentilla rivalis Nutt. -- accepted -- brook cinquefoil, river cinquefoil
  Potentilla rivalis var. millegrana (Engelm. ex Lehm.) S. Watson -- not accepted -- brook cinquefoil
  Potentilla rivalis var. pentandra (Engelm. ex Torr. & A. Gray) S. Watson -- not accepted -- brook cinquefoil, cinquefoil
  Potentilla rivalis var. rivalis Nutt. -- not accepted -- brook cinquefoil
  Potentilla robbinsiana (Lehm.) Oakes ex Rydb. -- accepted -- dwarf mountain cinquefoil, Robbins' cinquefoil
  Potentilla robbinsiana ssp. hyparctica (Malte) D. Löve -- not accepted
  Potentilla rolandii B. Boivin -- not accepted
  Potentilla rubella T.J. Sørensen -- accepted -- reddish cinquefoil
  Potentilla rubelloides V.V. Petrovsky -- not accepted
  Potentilla rubida L.O. Williams -- not accepted -- Chihuahuan cinquefoil
  Potentilla rubricaulis Lehm. -- accepted -- Rocky Mountain cinquefoil
  Potentilla rubricaulis var. dasyphylla Ledeb. -- not accepted
  Potentilla rubricaulis var. furcata (A.E. Porsild) Soják -- not accepted
  Potentilla rubricaulis var. paucijuga (Rydb.) Soják -- not accepted
  Potentilla rubricaulis var. pedersenii Rydb. -- not accepted
  Potentilla rubripes Rydb. -- not accepted
  Potentilla rubripes var. saximontana (Rydb.) Th. Wolf -- not accepted
  Potentilla rupestris L. -- accepted
  Potentilla rupestris var. americana Th. Wolf -- not accepted
  Potentilla rupincola Osterh. -- not accepted -- rock cinquefoil
  Potentilla sabulosa M.E. Jones -- not accepted
  Potentilla sanguinea Rydb. -- accepted -- scarlet cinquefoil
  Potentilla santolinoides (A. Gray) Greene -- not accepted
  Potentilla saximontana Rydb. -- accepted
  Potentilla saxosa Lemmon ex Greene -- not accepted
  Potentilla saxosa ssp. sierrae Munz -- not accepted
  Potentilla scopulorum Greene -- not accepted
  Potentilla sericata (S. Watson) Greene -- not accepted
  Potentilla sericoleuca (Rydb.) J.T. Howell -- not accepted
  Potentilla shockleyi (S. Watson) Jeps. -- not accepted
  Potentilla sibbaldi Haller f. -- not accepted
  Potentilla sibbaldii Haller f. -- not accepted
  Potentilla sibirica Th. Wolf -- not accepted
  Potentilla sierrae-blancae Wooton & Rydb. -- accepted -- Sierra Blanca cinquefoil
  Potentilla simplex Michx. -- accepted -- common cinquefoil, oldfield cinquefoil, oldfield fivefingers, spreading cinquefoil
  Potentilla simplex var. argyrisma Fernald -- not accepted
  Potentilla simplex var. calvescens Fernald -- not accepted
  Potentilla simplex var. typica Fernald -- not accepted
  Potentilla sterilis (L.) Garcke -- accepted -- strawberryleaf cinquefoil
  Potentilla stipularis L. -- accepted -- stipulated cinquefoil
  Potentilla stipularis var. groenlandica T.J. Sørensen -- not accepted -- Greenland cinquefoil
  Potentilla strigosa (Pursh) Pall. ex Tratt. -- not accepted
  Potentilla subgorodkovii Jurtzev -- accepted
  Potentilla subjuga Rydb. -- accepted -- Colorado cinquefoil
  Potentilla subvahliana Jurtzev -- accepted
  Potentilla subvillosa Rydb. -- not accepted
  Potentilla subviscosa Greene -- accepted -- Navajo cinquefoil
  Potentilla subviscosa var. ramulosa (Rydb.) Kearney & Peebles -- accepted -- Navajo cinquefoil
  Potentilla subviscosa var. subviscosa Greene -- accepted -- Navajo cinquefoil
  Potentilla sulphurea Lam. -- not accepted
  Potentilla supina L. -- accepted -- bushy cinquefoil, spreading cinquefoil
  Potentilla supina ssp. paradoxa (Nutt.) Soják -- accepted -- bushy cinquefoil
  Potentilla supina var. nicollettii S. Watson -- not accepted
  Potentilla supina var. paradoxa (Nutt.) Th. Wolf -- not accepted
  Potentilla tabernaemontani Asch. -- not accepted
  Potentilla tenuifolia Willd. ex Schltdl. -- not accepted
  Potentilla thurberi A. Gray -- accepted -- scarlet cinquefoil
  Potentilla thurberi var. atrorubens (Rydb.) Kearney & Peebles -- accepted -- scarlet cinquefoil
  Potentilla thurberi var. sanguinea (Rydb.) Kearney & Peebles -- not accepted -- scarlet cinquefoil
  Potentilla thurberi var. thurberi A. Gray -- accepted -- scarlet cinquefoil, Thurber's cinquefoil
  Potentilla thuringiaca Bernhardi ex Link -- accepted -- European cinquefoil
  Potentilla tikhomirovii Jurtzev -- accepted -- Tikhomirov's cinquefoil
  Potentilla tilingii (Regel) Greene -- not accepted
  Potentilla tilingii var. flavescens (Rydb.) J.T. Howell -- not accepted
  Potentilla townsendii Rydb. -- accepted -- Townsend's cinquefoil
  Potentilla tridentata Aiton -- not accepted
  Potentilla truncata (Rydb.) Jeps. -- not accepted
  Potentilla tularensis J.T. Howell -- not accepted
  Potentilla tweedyi (Rydb.) J.T. Howell -- not accepted
  Potentilla unguiculata (A. Gray) Hook. f. -- not accepted
  Potentilla uniflora Ledeb. -- accepted -- oneflower cinquefoil
  Potentilla uschakovii Jurtzev -- accepted
  Potentilla usticapensis Fernald -- not accepted
  Potentilla utahensis (S. Watson) Greene -- not accepted
  Potentilla utahensis var. campestris M.E. Jones -- not accepted
  Potentilla vahliana Lehm. -- accepted -- potentille de Vahl, Vahl's cinquefoil
  Potentilla vallicola Greene -- not accepted
  Potentilla verna L. -- accepted -- spring cinquefoil
  Potentilla versicolor Rydb. -- accepted -- Steens Mountain cinquefoil
  Potentilla villosa Pall. ex Pursh -- accepted -- villous cinquefoil
  Potentilla villosa var. parviflora C.L. Hitchc. -- not accepted
  Potentilla villosula Jurtzev -- accepted
  Potentilla villosula ssp. congesta Jurtzev -- not accepted
  Potentilla virgulata A. Nelson -- not accepted
  Potentilla viridescens Rydb. -- not accepted
  Potentilla viscida Parish -- not accepted
  Potentilla viscidula (Rydb.) Rydb. -- not accepted
  Potentilla vulcanicola Juz. -- accepted -- Kamtchatka cinquefoil
  Potentilla webberi (A. Gray) Greene -- not accepted
  Potentilla wheeleri S. Watson -- accepted -- Kern cinquefoil
  Potentilla wheeleri var. rimicola Munz & I.M. Johnst. -- not accepted
  Potentilla wheeleri var. wheeleri S. Watson -- not accepted -- Wheeler's cinquefoil
  Potentilla wilderae (Parish) Munz & I.M. Johnst. -- not accepted
  Potentilla wrangelliana Fisch. & Avé-Lall. -- not accepted
  Potentilla wyomingensis A. Nelson -- not accepted
  Potentilla X diversifolia Lehm. (pro sp.) -- accepted -- varileaf cinquefoil
  Potentilla X nubilans Soják -- accepted
  Potentilla X tundricola Soják -- accepted
  Potentilla yukonensis Hultén -- not accepted
  Poteridium Spach -- accepted
  Poteridium annuum (Nutt.) Spach -- accepted -- prairie burnet
  Poteridium occidentale Rydb. -- accepted
  Poterium L. -- not accepted
  Poterium annuum Nutt. -- not accepted
  Poterium officinale (L.) A. Gray -- not accepted
  Poterium polygamum Waldst. & Kit. -- not accepted
  Poterium sanguisorba L. -- not accepted -- burnet bloodwort, fodder burnet, salad burnet
  Poterium sanguisorba var. polygamum (Waldst. & Kit.) Vis. -- not accepted -- burnet bloodwort, fodder burnet, salad burnet
  Pourthiaea villosa (Thunb.) Decne. -- not accepted
  Prinsepia Royle -- accepted
  Prinsepia sinensis (Oliv.) Oliv. ex Bean -- accepted -- cherry prinsepia
  Prunus L. -- accepted -- chokecherry, plum
  Prunus alabamensis C. Mohr -- not accepted -- Alabama cherry
  Prunus alleghaniensis Porter -- not accepted -- Allegheny plum
  Prunus alleghaniensis var. alleghaniensis Porter -- not accepted -- Allegheny plum
  Prunus alleghaniensis var. davisii (W. Wight) Sarg. -- not accepted -- Davis' plum
  Prunus americana Marshall -- accepted -- American plum
  Prunus americana var. lanata Sudw. -- not accepted
  Prunus americana var. mollis (Torr.) Torr. & A. Gray -- not accepted
  Prunus americana var. nigra (Aiton) Waugh -- not accepted
  Prunus amygdalus Batsch -- not accepted
  Prunus andersonii A. Gray -- accepted -- Anderson's peachbrush, desert peach
  Prunus angustifolia Marshall -- accepted -- Chickasaw plum
  Prunus angustifolia var. angustifolia Marshall -- not accepted -- Chickasaw plum
  Prunus angustifolia var. varians W. Wight & Hedrick -- not accepted
  Prunus angustifolia var. watsonii (Sarg.) Waugh -- not accepted -- sand plum, Watson's plum, Watson's sand plum
  Prunus armeniaca L. -- accepted -- albaricoque, apricot, damasco, Siberian apricot
  Prunus armeniaca var. vulgaris Zabel -- not accepted
  Prunus avium (L.) L. -- accepted -- sweet cherry
  Prunus besseyi L.H. Bailey -- not accepted
  Prunus caroliniana (Mill.) Aiton -- accepted -- Carolina laurelcherry
  Prunus cerasifera Ehrh. -- accepted -- cherry plum, ciruela chabacana, myrobalan plum
  Prunus cerasifera var. divaricata (Ledeb.) L.H. Bailey -- not accepted
  Prunus cerasifera var. pissardii (Carrière) L.H. Bailey -- not accepted
  Prunus cerasus L. -- accepted -- sour cherry
  Prunus cerasus var. avium L. -- not accepted
  Prunus communis (L.) Arcang. -- not accepted
  Prunus corymbulosa Rydb. -- not accepted
  Prunus cuneata Raf. -- not accepted
  Prunus demissa (Nutt.) Walp. -- not accepted
  Prunus demissa (Nutt.) D. Dietr. -- not accepted
  Prunus demissa var. melanocarpa (A. Nelson) A. Nelson -- not accepted
  Prunus depressa Pursh -- not accepted
  Prunus divaricata ssp. nairica Kovalev -- not accepted
  Prunus domestica L. -- accepted -- European plum
  Prunus domestica ssp. domestica L. -- not accepted -- garden plum
  Prunus domestica ssp. insititia (L.) C.K. Schneid. -- not accepted
  Prunus domestica var. domestica L. -- not accepted -- European plum
  Prunus domestica var. insititia (L.) Fiori & Paoletti -- not accepted -- European plum
  Prunus dulcis (Mill.) D.A. Webb -- accepted -- almendro, almond, sweet almond
  Prunus dulcis var. amara (DC.) Buchheim -- not accepted
  Prunus emarginata (Douglas) Eaton -- accepted -- bitter cherry, bittercherry
  Prunus emarginata var. crenulata (Greene) Kearney & Peebles -- not accepted
  Prunus emarginata var. emarginata (Douglas) Eaton -- not accepted -- bitter cherry, bittercherry
  Prunus emarginata var. mollis (Douglas ex Hook.) W.H. Brewer -- not accepted -- bitter cherry
  Prunus eremophila Prigge -- accepted
  Prunus eriogyna S.C. Mason -- not accepted
  Prunus fasciculata (Torr.) A. Gray -- accepted -- desert almond, desert peach
  Prunus fasciculata var. fasciculata (Torr.) A. Gray -- accepted -- desert almond
  Prunus fasciculata var. punctata Jeps. -- accepted -- desert almond
  Prunus fremontii S. Watson -- accepted -- desert apricot
  Prunus fruticosa Pall. -- accepted -- European dwarf cherry
  Prunus geniculata R.M. Harper -- accepted -- scrub plum
  Prunus glandulosa Thunb. -- accepted -- flowering almond
  Prunus glandulosa (Hook.) Torr. & A. Gray -- not accepted
  Prunus gracilis Engelm. & A. Gray -- accepted -- Oklahoma plum
  Prunus gravesii Small -- not accepted
  Prunus havardii (W. Wight) S.C. Mason -- accepted -- Havard's plum
  Prunus hortulana L.H. Bailey -- accepted -- hortulan plum
  Prunus hortulana var. mineri L.H. Bailey -- not accepted
  Prunus ilicifolia (Nutt. ex Hook. & Arn.) D. Dietr. -- accepted -- hollyleaf cherry
  Prunus ilicifolia ssp. ilicifolia (Nutt. ex Hook. & Arn.) D. Dietr. -- not accepted -- hollyleaf cherry
  Prunus ilicifolia ssp. lyonii (Eastw.) P.H. Raven -- not accepted -- hollyleaf cherry
  Prunus ilicifolia var. ilicifolia (Nutt. ex Hook. & Arn.) D. Dietr. -- accepted -- hollyleaf cherry
  Prunus ilicifolia var. integrifolia Sudw. -- accepted -- hollyleaf cherry
  Prunus injuncunda Small -- not accepted
  Prunus insititia L. -- accepted
  Prunus jamasakura var. speciosa Koidz. -- not accepted
  Prunus japonica Thunb. -- accepted -- Japanese bush cherry
  Prunus lanata (Sudw.) Mack. & Bush -- not accepted
  Prunus lannesiana f. albida (Makino) E.H. Wilson -- not accepted
  Prunus laurocerasus L. -- accepted -- cherry laurel
  Prunus lusitanica L. -- accepted -- Portugal laurel, Portuguese laurel, Portuguese laurel cherry
  Prunus lusitanica f. myrtifolia (Mouill.) hort. ex Zabel -- not accepted
  Prunus lyonii (Eastw.) Sarg. -- not accepted
  Prunus maackii Rupr. -- accepted -- Amur chokecherry
  Prunus mahaleb L. -- accepted -- Mahaleb cherry, perfumed cherry
  Prunus maritima Marshall -- accepted -- beach plum
  Prunus maritima var. gravesii (Small) G.J. Anderson -- not accepted -- Graves' plum
  Prunus maritima var. maritima Marshall -- not accepted -- beach plum
  Prunus maximowiczii Rupr. -- accepted -- Korean cherry
  Prunus melanocarpa (A. Nelson) Rydb. -- not accepted
  Prunus mexicana S. Watson -- accepted -- Mexican plum
  Prunus mexicana var. flutonensis (Sarg.) Sarg. -- not accepted
  Prunus mexicana var. polyandra (Sarg.) Sarg. -- not accepted
  Prunus minutiflora Engelm. ex A. Gray -- accepted -- smallflower peachbrush, Texas almond
  Prunus mitis Beadle -- not accepted
  Prunus mollis Torr. -- not accepted
  Prunus mume Siebold & Zucc. -- accepted -- Japanese apricot
  Prunus munsoniana W. Wight & Hedrick -- not accepted -- wild goose plum, wildgrove plum
  Prunus murrayana E.J. Palmer -- accepted -- Murray's plum
  Prunus myrtifolia (L.) Urb. -- accepted -- West Indian cherry
  Prunus nigra Aiton -- accepted -- black plum, Canadian plum
  Prunus occidentalis Sw. -- accepted -- western cherry laurel
  Prunus padus L. -- accepted -- European bird cherry
  Prunus pedunculata (Pall.) Maxim. -- accepted
  Prunus pensylvanica L. f. -- accepted -- fire cherry, pin cherry
  Prunus pensylvanica ssp. corymbulosa (Rydb.) W. Wight -- not accepted
  Prunus pensylvanica var. corymbulosa (Rydb.) W. Wight -- not accepted
  Prunus pensylvanica var. mollis (Douglas ex Hook.) B. Boivin -- not accepted
  Prunus pensylvanica var. pensylvanica L. f. -- not accepted -- pin cherry
  Prunus pensylvanica var. saximontana Rehder -- not accepted -- pin cherry
  Prunus persica (L.) Batsch -- accepted -- peach
  Prunus persica var. nectarina (Aiton) Maxim. -- not accepted
  Prunus persica var. nucipersica (Suckow) C.K. Schneid. -- not accepted -- nectarine
  Prunus persica var. persica (L.) Batsch -- not accepted -- peach
  Prunus pleuradenia Griseb. -- accepted -- Antilles cherry
  Prunus pumila L. -- accepted -- sand cherry, sandcherry
  Prunus pumila ssp. besseyi (L.H. Bailey) Nizhnikev -- not accepted
  Prunus pumila ssp. susquehanae (Willd.) R.T. Clausen -- not accepted
  Prunus pumila var. besseyi (L.H. Bailey) Gleason -- accepted -- Great Lakes sand cherry, western sandcherry
  Prunus pumila var. cuneata (Raf.) L.H. Bailey -- not accepted
  Prunus pumila var. depressa (Pursh) Gleason -- not accepted -- eastern sandcherry
  Prunus pumila var. depressa (Pursh) Bean -- accepted -- eastern sandcherry
  Prunus pumila var. pumila L. -- accepted -- Great Lakes sandcherry
  Prunus pumila var. susquehanae (Willd.) H. Jaeger -- accepted -- Sesquehana sandcherry
  Prunus reverchonii Sarg. -- not accepted
  Prunus rivularis Scheele -- accepted -- creek plum
  Prunus rivularis var. pubescens Enquist -- not accepted
  Prunus salicina Lindl. -- accepted -- Japanese plum
  Prunus salicina var. mandshurica (Skvortsov) Skvortsov & A.I. Baranov -- accepted
  Prunus serotina Ehrh. -- accepted -- black cherry, black chokecherry
  Prunus serotina ssp. capuli (Cav.) McVaugh -- not accepted -- capulí
  Prunus serotina ssp. eximia (Small) McVaugh -- not accepted
  Prunus serotina ssp. hirsuta (Elliott) McVaugh -- not accepted
  Prunus serotina ssp. virens (Wooton & Standl.) McVaugh -- not accepted
  Prunus serotina var. alabamensis (C. Mohr) Little -- accepted
  Prunus serotina var. eximia (Small) Little -- not accepted -- black cherry, escarpment cherry
  Prunus serotina var. rufula (Wooton & Standl.) McVaugh -- accepted -- black cherry, southwestern chokecherry
  Prunus serotina var. salicifolia (Kunth) Koehne -- accepted
  Prunus serotina var. serotina Ehrh. -- accepted -- black cherry
  Prunus serotina var. virens (Wooton & Standl.) McVaugh -- not accepted -- black cherry
  Prunus serrulata Lindl. -- accepted -- Japanese flowering cherry
  Prunus serrulata f. albida Makino -- not accepted
  Prunus serrulata f. lannesiana (Carrière) Makino -- not accepted
  Prunus speciosa (Koidz.) Nakai -- accepted
  Prunus spinosa L. -- accepted -- blackthorn
  Prunus subcordata Benth. -- accepted -- Klamath plum
  Prunus subcordata var. kelloggii Lemmon -- not accepted -- Kellogg's Klamath plum
  Prunus subcordata var. oregana (Greene) M. Peck -- not accepted -- Oregon Klamath plum
  Prunus subcordata var. rubicunda Jeps. -- not accepted -- Klamath plum
  Prunus subcordata var. subcordata Benth. -- not accepted -- Klamath plum
  Prunus subhirtella Miq. -- accepted -- winter-flowering cherry
  Prunus susquehanae Willd. -- not accepted -- Sesquehana sandcherry
  Prunus tenella Batsch -- accepted -- dwarf Russian almond, prunus, Russian almond
  Prunus texana D. Dietr. -- accepted -- peachbush, Texas peachbrush
  Prunus tomentosa Thunb. -- accepted -- Nanking cherry
  Prunus triflora Roxb. -- not accepted
  Prunus triloba Lindl. -- accepted -- flowering plum
  Prunus umbellata Elliott -- accepted -- flatwood plum, hog plum
  Prunus umbellata var. injuncunda (Small) Sarg. -- not accepted -- hog plum
  Prunus umbellata var. tarda (Sarg.) W. Wight -- not accepted
  Prunus umbellata var. umbellata Elliott -- not accepted -- hog plum
  Prunus ussuriensis Kovalev & Kostina -- not accepted
  Prunus virens (Wooton & Standl.) Shreve ex Sarg. -- not accepted
  Prunus virens var. rufula (Wooton & Standl.) Sarg. -- not accepted
  Prunus virginiana L. -- accepted -- chokecherry, common chokecherry, Virginia chokecherry
  Prunus virginiana ssp. demissa (Nutt.) Roy L. Taylor & MacBryde -- not accepted
  Prunus virginiana ssp. melanocarpa (A. Nelson) Roy L. Taylor & MacBryde -- not accepted
  Prunus virginiana var. demissa (Nutt.) Torr. -- accepted -- western chokecherry
  Prunus virginiana var. melanocarpa (A. Nelson) Sarg. -- not accepted -- black chokecherry, choke cherry
  Prunus virginiana var. virginiana L. -- accepted -- chokecherry
  Prunus watsonii Sarg. -- not accepted
  Prunus X domestica var. insititia (L.) B. Boivin (pro nm.) -- not accepted
  Prunus X orthosepala Koehne (pro sp.) -- accepted -- prunus
  Prunus X palmeri Sarg. (pro sp.) -- accepted -- Palmer's prunus
  Prunus X pugetensis Jacobson & Zika (pro hybr.) -- accepted
  Prunus X slavinii Palmer ex Rehder (pro hybr.) -- accepted -- Slavin's prunus
  Prunus X utahensis Koehne -- accepted
  Prunus yedoensis Matsum. -- accepted -- Yoshino cherry
  Pseudocydonia C.K. Schneid. -- not accepted -- Chinese-quince
  Pseudocydonia sinensis (Thouin) C.K. Schneid. -- not accepted -- Chinese-quince
  Psychrobatia Greene -- not accepted
  Purpusia Brandegee -- not accepted
  Purpusia arizonica Eastw. ex J.T. Howell -- not accepted
  Purpusia osterhoutii A. Nelson -- not accepted
  Purpusia saxosa Brandegee -- not accepted
  Purshia DC. ex Poir. -- accepted -- bitterbrush, cliffrose
  Purshia ericifolia (Torr. ex A. Gray) Henrickson -- accepted -- heath cliffrose
  Purshia glandulosa Curran -- not accepted -- antelope brush, desert bitterbrush
  Purshia mexicana (D. Don) Henrickson -- not accepted -- Mexican cliffrose
  Purshia mexicana (D. Don) S.L. Welsh -- accepted -- Mexican cliffrose
  Purshia mexicana var. stansburiana (Torr.) S.L. Welsh -- not accepted
  Purshia mexicana var. stansburyana (Torr.) S.L. Welsh -- accepted
  Purshia pinkavae Schaack -- not accepted -- Pinkava's cliffrose
  Purshia stansburiana (Torr.) Henrickson -- not accepted -- Stansbury's cliffrose
  Purshia stansburyana (Torr.) Henrickson -- not accepted -- Stansbury's cliffrose
  Purshia tridentata (Pursh) DC. -- accepted -- antelope bitterbrush
  Purshia tridentata var. glandulosa (Curran) M.E. Jones -- accepted -- desert bitterbrush
  Purshia tridentata var. tridentata (Pursh) DC. -- accepted -- antelope bush
  Purshia X subintegra (Kearney) Henrickson (pro sp.) -- accepted -- Arizona cliffrose, subintegra bitterbrush
  Pyracantha M. Roem. -- accepted -- firethorn
  Pyracantha angustifolia (Franch.) C.K. Schneid. -- accepted -- narrowleaf firethorn
  Pyracantha atalantioides (Hance) Stapf -- accepted
  Pyracantha chinensis M. Roem. -- not accepted
  Pyracantha coccinea M. Roem. -- accepted -- scarlet firethorn
  Pyracantha crenatiserrata (Hance) Rehder -- not accepted
  Pyracantha crenatoserrata (Hance) Rehder -- accepted
  Pyracantha crenulata (D. Don) Roem. -- accepted -- Nepalese firethorn
  Pyracantha crenulata var. kansuensis Rehder -- not accepted
  Pyracantha crenulata var. rogersiana A.B. Jacks. -- not accepted
  Pyracantha fortuneana (Maxim.) H.L. Li -- accepted -- Chinese firethorn
  Pyracantha koidzumii (Hayata) Rehder -- accepted -- Formosa firethorn
  Pyracantha rogersiana A.B. Jacks. -- not accepted
  Pyracantha yunnanensis (M. Vilm. ex Mottet) Chitt. -- not accepted
  Pyrus L. -- accepted -- pear
  Pyrus alpina Willd. -- not accepted
  Pyrus americana (Marshall) DC. -- not accepted
  Pyrus americana (Marshall) Spreng. -- not accepted
  Pyrus americana var. decora Sarg. -- not accepted
  Pyrus angustifolia Aiton -- not accepted
  Pyrus angustifolia var. spinosa (Rehder) L.H. Bailey -- not accepted
  Pyrus arbutifolia (L.) L. f. -- not accepted
  Pyrus arbutifolia var. atropurpurea (Britton) B.L. Rob. -- not accepted
  Pyrus arbutifolia var. glabra Cronquist -- not accepted
  Pyrus arbutifolia var. nigra Willd. -- not accepted
  Pyrus aucuparia (L.) Gaertn. -- not accepted
  Pyrus austriaca A. Kern. -- not accepted
  Pyrus baccata L. -- not accepted
  Pyrus bartramiana Tausch -- not accepted
  Pyrus boissieriana Buhse -- not accepted
  Pyrus bracteata (Redher) L.H. Bailey -- not accepted
  Pyrus calleryana Decne. -- accepted -- Callery pear
  Pyrus calleryana var. calleryana Decne. -- not accepted -- Callery pear
  Pyrus calleryana var. integrifolia T.T. Yu -- not accepted -- Callery pear
  Pyrus calleryana var. koehnei (C.K. Schneid.) T.T. Yu -- not accepted -- Callery pear
  Pyrus calleryana var. lanceata Rehder -- not accepted -- Callery pear
  Pyrus caucasica Fed. -- not accepted
  Pyrus communis L. -- accepted -- common pear, pear
  Pyrus cordata Desv. -- accepted -- Plymouth pear
  Pyrus coronaria L. -- not accepted
  Pyrus coronaria var. angustifolia (Aiton) Wenz. -- not accepted -- sweet crab apple
  Pyrus coronaria var. dasycalyx (Rehder) Fernald -- not accepted
  Pyrus coronaria var. elongata (Rehder) L.H. Bailey -- not accepted
  Pyrus coronaria var. ioensis Alph. Wood -- not accepted
  Pyrus coronaria var. lancifolia (Rehder) Fernald -- not accepted
  Pyrus cydonia L. -- not accepted
  Pyrus decora (Sarg.) Hyl. -- not accepted
  Pyrus decora var. groenlandica (C.K. Schneid.) Fernald -- not accepted
  Pyrus diversifolia Bong. -- not accepted
  Pyrus eriopleura Rchb. -- not accepted
  Pyrus esquirolii H. Lév. -- not accepted
  Pyrus floribunda Lindl. -- not accepted
  Pyrus fusca Raf. -- not accepted
  Pyrus glaucescens (Rehder) L.H. Bailey -- not accepted
  Pyrus halliana (Koehne) Voss -- not accepted
  Pyrus hupehensis Pamp. -- not accepted
  Pyrus hybrida Moench -- not accepted
  Pyrus intermedia Ehrh. -- not accepted
  Pyrus ioensis (Alph. Wood) L.H. Bailey -- not accepted
  Pyrus ioensis var. texana (Rehder) L.H. Bailey -- not accepted
  Pyrus japonica Thunb. -- not accepted
  Pyrus kawakamii Hayata -- not accepted -- Callery pear
  Pyrus koehnei C.K. Schneid. -- not accepted -- Callery pear
  Pyrus lancifolia (Rehder) L.H. Bailey -- not accepted
  Pyrus malus L. -- not accepted
  Pyrus malus var. paradisiaca L. -- not accepted
  Pyrus melanocarpa (Michx.) Willd. -- not accepted
  Pyrus microcarpa (Pursh) Spreng. -- not accepted
  Pyrus mixta Fernald -- not accepted
  Pyrus nivalis Jacq. -- accepted -- snow pear
  Pyrus occidentalis S. Watson -- not accepted
  Pyrus pinnatifida Ehrh. -- not accepted
  Pyrus prunifolia Willd. -- not accepted
  Pyrus pumila (Mill.) K. Koch -- not accepted
  Pyrus pyraster (L.) Du Roi -- not accepted
  Pyrus pyrifolia (Burm. f.) Nakai -- accepted -- Chinese pear
  Pyrus rivularis Douglas -- not accepted
  Pyrus salviifolia DC. -- not accepted
  Pyrus sambucifolia Cham. & Schltdl. -- not accepted
  Pyrus sambucifolia var. pumila (Raf.) Sarg. -- not accepted
  Pyrus sanguinea Pursh -- not accepted
  Pyrus sativa DC. -- not accepted
  Pyrus serotina Rehder -- not accepted
  Pyrus serrulata Rehder -- accepted -- serrulate pear
  Pyrus sieboldii Regel -- not accepted
  Pyrus sitchensis (M. Roem.) Piper -- not accepted
  Pyrus sitchensis var. californica (Greene) Smiley -- not accepted
  Pyrus subcrataegifolia H. Lév. -- not accepted
  Pyrus toringo (K. Koch) Miq. -- not accepted
  Pyrus torminalis (L.) Ehrh. -- not accepted
  Pyrus ussuriensis Maxim. -- accepted -- Chinese pear
  Pyrus X alpina Willd. -- not accepted
  Pyrus X amphigenea Domin ex Dostalek -- not accepted
  Pyrus X arnoldiana (Rehder) Bean -- not accepted
  Pyrus X fallax (C.K. Schneid.) Fernald -- not accepted
  Pyrus X jackii (Rehder) Fernald -- not accepted
  Pyrus X magdeburgensis hort. -- not accepted
  Pyrus X micromalus (Makino) L.H. Bailey -- not accepted
  Pyrus X platycarpa (Rehder) L.H. Bailey -- not accepted
  Pyrus X soulardii L.H. Bailey -- not accepted
  Pyrus zumi Matsum. -- not accepted
  Rhaphiolepis Lindl. -- accepted
  Rhaphiolepis indica (L.) Lindl. -- accepted
  Rhodotypos Siebold & Zucc. -- accepted
  Rhodotypos kerrioides Siebold & Zucc. -- not accepted
  Rhodotypos scandens (Thunb.) Makino -- accepted -- jetbead
  Rhodotypos tetrapetalus (Siebold) Makino -- not accepted
  Rosa L. -- accepted -- rose, wildrose
  Rosa abietorum Greene -- not accepted
  Rosa abyssinica R. Br. ex Lindl. -- accepted
  Rosa acicularioides Schuette -- not accepted
  Rosa acicularis Lindl. -- accepted -- prickly rose
  Rosa acicularis ssp. acicularis Lindl. -- accepted -- prickly rose
  Rosa acicularis ssp. sayi (Schwein.) W.H. Lewis -- accepted -- prickly rose
  Rosa acicularis var. bourgeauiana (Crép.) Crép. -- not accepted
  Rosa acicularis var. cucurbiformis Raup -- not accepted
  Rosa acicularis var. lacuum Erlanson -- not accepted
  Rosa acicularis var. nipponensis (Crép.) Koehne -- accepted
  Rosa acicularis var. rotunda Erlanson -- not accepted
  Rosa acicularis var. sayana Erlanson -- not accepted
  Rosa adenosepala Wooton & Standl. -- not accepted
  Rosa afzeliana Fr. -- not accepted
  Rosa agrestis Savi -- accepted -- fieldbriar
  Rosa alberti Regel -- accepted
  Rosa alcea Greene -- not accepted
  Rosa aldersonii Greene -- not accepted
  Rosa aleutensis Crép. -- not accepted
  Rosa amygdalifolia Ser. -- not accepted
  Rosa anatonensis H. St. John -- not accepted
  Rosa andegavensis Bastard -- not accepted
  Rosa arizonica Rydb. -- not accepted
  Rosa arizonica var. granulifera (Rydb.) Kearney & Peebles -- not accepted
  Rosa arkansana Porter -- accepted -- Arkansas rose, prairie rose, prairie wildrose, wild rose
  Rosa arkansana var. arkansana Porter -- not accepted -- Arkansas rose, prairie rose
  Rosa arkansana var. depressa Cockerell -- not accepted
  Rosa arkansana var. suffulta (Greene) Cockerell -- not accepted -- prairie rose
  Rosa arkansanoides C.K. Schneid. -- not accepted
  Rosa arvensis Huds. -- accepted -- field rose, musk rose
  Rosa aucuparia Rydb. -- not accepted
  Rosa austriaca Crantz -- not accepted
  Rosa beggeriana Schrenk -- accepted
  Rosa bella Rehder & E.H. Wilson -- accepted
  Rosa blanda Aiton -- accepted -- smooth rose
  Rosa blanda var. arkansana (Porter) Best -- not accepted
  Rosa blanda var. blanda Aiton -- not accepted -- smooth rose
  Rosa blanda var. carpohispida Schuette -- not accepted
  Rosa blanda var. glabra Crép. -- not accepted -- smooth rose
  Rosa blanda var. glandulosa Schuette -- not accepted -- smooth rose
  Rosa blanda var. hispida Farw. -- not accepted -- hispid rose
  Rosa blanda var. setigera Crép. -- not accepted
  Rosa blondaeana Déségl. -- not accepted
  Rosa borckhausenii Tratt. -- not accepted
  Rosa borreri Woods -- not accepted
  Rosa bourgeauiana Crép. -- not accepted
  Rosa bracteata J.C. Wendl. -- accepted -- Macartney rose
  Rosa bridgesii Crép. -- accepted -- pygmy rose
  Rosa brunonii Lindl. -- accepted -- Himalayan musk rose
  Rosa bushii Rydb. -- not accepted
  Rosa butleri Rydb. -- not accepted
  Rosa caeruleimontana H. St. John -- not accepted
  Rosa caesia Sm. -- not accepted
  Rosa californica Cham. & Schltdl. -- accepted -- California wildrose
  Rosa canina L. -- accepted -- dog rose
  Rosa canina var. dumetorum (Thuill.) Poir. -- not accepted
  Rosa carolina L. -- accepted -- Carolina rose
  Rosa carolina ssp. carolina L. -- accepted
  Rosa carolina ssp. subserrulata (Rydb.) W.H. Lewis -- accepted
  Rosa carolina var. aculeata Schuette -- not accepted
  Rosa carolina var. carolina L. -- not accepted -- Carolina rose
  Rosa carolina var. deamii (Erlanson) Deam -- not accepted -- Deam's rose
  Rosa carolina var. glandulosa (Crép.) Farw. -- not accepted
  Rosa carolina var. grandiflora (Baker) Rehder -- not accepted
  Rosa carolina var. lyonii (Pursh) E.J. Palmer & Steyerm. -- not accepted
  Rosa carolina var. obovata (Raf.) Deam -- not accepted
  Rosa carolina var. sabulosa Erlanson -- not accepted -- Carolina rose
  Rosa carolina var. setigera Crép. -- not accepted -- Carolina rose
  Rosa carolina var. villosa (Best) Rehder -- not accepted -- Carolina rose
  Rosa caroliniana Michx. -- not accepted
  Rosa cathayensis (Rehder & E.H. Wilson) L.H. Bailey -- not accepted
  Rosa caudata Baker -- accepted
  Rosa centifolia L. -- not accepted -- cabbage rose
  Rosa centifolia var. centifolia L. -- not accepted -- cabbage rose
  Rosa centifolia var. cristata Prev. -- not accepted
  Rosa centifolia var. muscosa (Aiton) Ser. -- not accepted
  Rosa cherokeensis Donn -- not accepted
  Rosa chinensis Jacq. -- accepted -- Chinese rose
  Rosa cinnamomea L. sensu 1759, non 1753 -- not accepted -- cinnamon rose
  Rosa cinnamomea L. -- accepted -- cinnamon rose
  Rosa collaris Rydb. -- not accepted
  Rosa conjuncta Rydb. -- not accepted
  Rosa coriifolia Fr. -- not accepted
  Rosa corymbifera Borkh. -- not accepted
  Rosa corymbosa Ehrh. -- not accepted
  Rosa covillei Greene -- not accepted
  Rosa cucumerina Tratt. -- not accepted
  Rosa cuspidata M. Bieb. -- not accepted
  Rosa dasistema Raf. -- not accepted
  Rosa davidii Crép. -- accepted
  Rosa davurica Pall. -- accepted -- Amur rose
  Rosa demareei E.J. Palmer -- not accepted
  Rosa deseglisei Boreau -- not accepted
  Rosa dumalis Bechst. -- not accepted
  Rosa dumetorum Thuill. -- not accepted -- corymb rose
  Rosa durandii Crép. -- not accepted
  Rosa ecae Aitch. -- accepted
  Rosa eglanteria L. -- not accepted -- sweetbriar rose
  Rosa elegans Raf. -- not accepted
  Rosa elongata Rossig ex Steud. -- not accepted
  Rosa engelmannii S. Watson -- not accepted
  Rosa enneaphylla Raf. -- not accepted
  Rosa evanida (Christ) Almq. -- not accepted
  Rosa fedtschenkoana Regel -- accepted
  Rosa fendleri Crép. -- not accepted
  Rosa ferruginea Vill. -- not accepted -- redleaf rose
  Rosa floridana Rydb. -- not accepted
  Rosa foetida Herrm. -- accepted -- Austrian copper rose, Austrian yellow rose, Austrian-briar, Persian yellow rose
  Rosa foliolosa Nutt. ex Torr. & A. Gray -- accepted -- white prairie rose
  Rosa forrestiana Boulenger -- accepted
  Rosa fragrans Salisb. -- not accepted
  Rosa fraxinifolia Borkh. -- not accepted
  Rosa gallica L. -- accepted -- apothecary rose, French rose, Hungarian rose, officinal rose
  Rosa gallica var. gallica L. -- not accepted -- French rose
  Rosa gallica var. officinalis Thory -- not accepted -- French rose
  Rosa gallica var. versicolor L. -- not accepted
  Rosa gemella Willd. -- not accepted
  Rosa giraldii Crép. -- accepted
  Rosa glandulosa Raf. -- not accepted
  Rosa glauca Pourr. -- accepted
  Rosa glaucophylla Winch -- not accepted
  Rosa globosa Raf. -- not accepted
  Rosa glutinosa Sm. -- not accepted
  Rosa gmelini Bunge ex Ledeb. -- not accepted
  Rosa granulata Greene -- not accepted
  Rosa granulifera Rydb. -- not accepted
  Rosa gratissima Greene -- not accepted
  Rosa gymnocarpa Nutt. -- accepted -- dwarf rose
  Rosa gymnocarpa var. gymnocarpa Nutt. -- accepted -- dwarf rose, wood rose
  Rosa gymnocarpa var. pinetorum (A. Heller) Jeps. -- not accepted
  Rosa gymnocarpa var. pubescens S. Watson -- not accepted
  Rosa gymnocarpa var. serpentina Ertter & W.H. Lewis -- accepted -- dwarf rose
  Rosa helenae Rehder & E.H. Wilson -- accepted
  Rosa heliophila Greene -- not accepted
  Rosa helleri Greene -- not accepted
  Rosa hemisphaerica Herrm. -- accepted -- sulphur rose
  Rosa hemsleyana Tackh. -- accepted
  Rosa hirtula (Regel) Nakai -- not accepted
  Rosa hispidocarpa Chabert -- not accepted
  Rosa hudsoniana Thory -- not accepted
  Rosa hudsoniana var. salicifolia Thory -- not accepted
  Rosa hugonis Hemsl. -- not accepted -- rose
  Rosa humilis Marshall -- not accepted
  Rosa hypoleuca Wooton & Standl. -- not accepted
  Rosa hystrix Lindl. -- not accepted
  Rosa ignota Shinners -- not accepted
  Rosa iliensis Chrshan. -- not accepted
  Rosa illinoiensis Baker -- not accepted
  Rosa inconspicua Déségl. -- not accepted
  Rosa indica L. -- accepted -- cyme rose
  Rosa insidiosa Gren. -- not accepted
  Rosa japonica Rossig -- not accepted
  Rosa johannensis Fernald -- not accepted
  Rosa jonesii H. St. John -- not accepted
  Rosa jundzillii Besser -- accepted
  Rosa kokanica Regel ex Juz. -- accepted
  Rosa laevigata Michx. -- accepted -- Cherokee rose
  Rosa lancifolia Small -- not accepted
  Rosa lapwaiensis H. St. John -- not accepted
  Rosa laxa Retz. -- accepted
  Rosa leucopsis Greene -- not accepted
  Rosa lindleyi Spreng. -- not accepted
  Rosa lucida Willd. -- not accepted
  Rosa lucida var. lamprophylla (Rehder) P.V. Heath -- not accepted
  Rosa lucieae Franch. & Rochebr. ex Crép. -- accepted -- memorial rose, Wichura's rose
  Rosa lunellii Greene -- not accepted
  Rosa lutescens Pursh -- not accepted
  Rosa lyonii Pursh -- not accepted
  Rosa macartnea Dum. Cours. -- not accepted
  Rosa macdougalii Holz. -- not accepted
  Rosa macounii Greene -- not accepted
  Rosa majalis J. Herrm. -- accepted -- double cinnamon rose
  Rosa manca Greene -- not accepted -- Mancos rose
  Rosa maracandica Bunge -- accepted
  Rosa marretii H. Lév. -- accepted
  Rosa maximowicziana Regel -- accepted
  Rosa megalantha G.N. Jones -- not accepted
  Rosa melina Greene -- not accepted
  Rosa michiganensis Erlanson -- not accepted
  Rosa micrantha Borrer -- not accepted -- smallflower rose, smallflower sweetbriar
  Rosa minutifolia Engelm. -- accepted -- Baja rose, small-leaved rose
  Rosa mirifica Greene -- not accepted
  Rosa missouriensis hort. ex Steud. -- accepted -- Missouri rose
  Rosa mohavensis Parish -- not accepted
  Rosa mollis Sm. -- accepted
  Rosa montana Chaix -- accepted
  Rosa montezumae Humb. & Bonpl. ex Thory -- not accepted
  Rosa moschata Herrm. -- accepted -- musk rose
  Rosa moyesii Hemsl. & E.H. Wilson -- accepted
  Rosa moyesii var. fargesii Rolfe -- not accepted
  Rosa multibracteata Hemsl. & E.H. Wilson -- accepted
  Rosa multiflora Thunb. -- accepted -- multiflora rose
  Rosa multiflora f. watsoniana (Crép.) Matsum. -- not accepted
  Rosa muriculata Greene -- not accepted
  Rosa myriacantha DC. -- not accepted
  Rosa myriadenia Greene -- not accepted -- glandular rose
  Rosa nanella Rydb. -- not accepted
  Rosa neomexicana Cockerell -- not accepted
  Rosa nitida Willd. -- accepted -- shining rose
  Rosa nitidula Besser -- accepted
  Rosa nivea DC. -- not accepted
  Rosa nutkana C. Presl -- accepted -- Nootka rose
  Rosa nutkana ssp. macdougalii (Holz.) Piper -- accepted -- Nootka rose
  Rosa nutkana ssp. melina (Greene) W.H. Lewis & Ertter -- accepted -- Nootka rose
  Rosa nutkana ssp. nutkana C. Presl -- accepted -- Nootka rose
  Rosa nutkana var. hispida Fernald -- not accepted -- bristly Nootka rose
  Rosa nutkana var. muriculata (Greene) G.N. Jones -- not accepted -- Nootka rose
  Rosa nutkana var. nutkana C. Presl -- not accepted -- Nootka rose
  Rosa nutkana var. setosa G.N. Jones -- not accepted -- Nootka rose
  Rosa nuttalliana (Rehder) C. Schneid. -- not accepted
  Rosa obtusiuscula Rydb. -- not accepted -- Appalachian Valley rose
  Rosa odorata (Andrews) Sweet -- not accepted -- tea rose
  Rosa omeiensis Rolfe -- not accepted
  Rosa oreophila Rydb. -- not accepted
  Rosa palmeri Rydb. -- not accepted
  Rosa palustris Marshall -- accepted -- swamp rose
  Rosa palustris var. aculeata (Schuette) Erlanson -- not accepted
  Rosa palustris var. dasistema (Raf.) E.J. Palmer & Steyerm. -- not accepted
  Rosa palustris var. sepalorelevata (Schuette) Erlanson -- not accepted
  Rosa pandorana Greene -- not accepted
  Rosa parviflora Ehrh. -- not accepted
  Rosa pecosensis Cockerell -- not accepted
  Rosa pendulina L. -- accepted -- alpine rose, mountain rose
  Rosa pensylvanica Michx. -- not accepted
  Rosa petiolata Rydb. -- not accepted
  Rosa pimpinellifolia L. -- not accepted
  Rosa pinetorum A. Heller -- accepted -- pine rose
  Rosa pisocarpa A. Gray -- accepted -- cluster rose
  Rosa pisocarpa ssp. ahartii Ertter & W.H. Lewis -- accepted -- cluster rose
  Rosa pisocarpa ssp. pisocarpa A. Gray -- accepted -- cluster rose
  Rosa pisocarpa var. gratissima (Greene) Jeps. -- not accepted
  Rosa pisocarpa var. rivalis (Eastw.) Jeps. -- not accepted
  Rosa pistacoria Greene -- not accepted
  Rosa polyanthema Lunell -- not accepted
  Rosa polyanthus Rossig -- not accepted
  Rosa pomifera Herrm. -- not accepted
  Rosa pouzinii Tratt. -- accepted
  Rosa pratincola Greene -- not accepted
  Rosa prattii Hemsl. -- accepted
  Rosa puberulenta Rydb. -- not accepted
  Rosa pulverulenta M. Bieb. -- accepted
  Rosa pusilla Raf. -- not accepted
  Rosa rainierensis G.N. Jones -- not accepted
  Rosa ratonensis Erlanson -- not accepted
  Rosa relicta Erlanson -- not accepted
  Rosa rivalis Eastw. -- not accepted
  Rosa rousseauiorum B. Boivin -- not accepted -- rosier de Rousseau
  Rosa roxburghii Tratt. -- accepted -- chestnut rose, Chinquapin rose
  Rosa roxburghii var. hirtula (Regel) Rehder & E.H. Wilson -- accepted
  Rosa rubifolia R. Br. -- not accepted
  Rosa rubiginosa L. -- accepted -- sweetbriar rose
  Rosa rubiginosa var. nemoralis (Léman) Thory -- accepted -- sweetbriar rose
  Rosa rubiginosa var. rubiginosa L. -- accepted -- sweetbriar rose
  Rosa rubrifolia Vill. -- not accepted -- redleaf rose
  Rosa rubrispina Bosc ex Poir. -- not accepted
  Rosa rugosa Thunb. -- accepted -- Japanese rose, rugosa rose, rugose rose, Turkestan rose
  Rosa rugosa f. alba Rehder -- not accepted
  Rosa rugosa var. albiflora Koidz. -- not accepted
  Rosa rydbergii Greene -- not accepted
  Rosa sancti-andreae Degen & Trautm. -- not accepted
  Rosa sarmentacea Woods -- not accepted
  Rosa sayi Schwein. -- not accepted
  Rosa schuetteana Erlanson -- not accepted
  Rosa sempervirens L. -- accepted -- evergreen rose
  Rosa serafinii Viv. -- not accepted -- Mediterranean rose
  Rosa sericea Lindl. -- accepted
  Rosa sericea ssp. omeiensis (Rolfe) A.V. Roberts -- accepted
  Rosa seringeana Godr. -- not accepted
  Rosa serrulata Raf. -- not accepted
  Rosa setigera Michx. -- accepted -- climbing rose, Prairie rose
  Rosa setigera var. glabra Torr. & A. Gray -- not accepted
  Rosa setigera var. serena E.J. Palmer & Steyerm. -- not accepted
  Rosa setigera var. setigera Michx. -- not accepted -- climbing rose
  Rosa setigera var. tomentosa Torr. & A. Gray -- not accepted -- climbing rose
  Rosa setipoda Hemsl. & E.H. Wilson -- accepted
  Rosa sherardii Davies -- accepted
  Rosa sibirica Tratt. -- not accepted
  Rosa sicula Tratt. -- accepted -- Mediterranean rose
  Rosa sinowilsonii Hemsl. -- accepted
  Rosa solandri Tratt. -- not accepted
  Rosa sonomensis Greene -- not accepted
  Rosa soulieana Crép. -- accepted
  Rosa spaldingii Crép. -- not accepted
  Rosa spaldingii var. alta (Suksd.) G.N. Jones -- not accepted
  Rosa spaldingii var. hispida (Fernald) G.N. Jones -- not accepted
  Rosa spaldingii var. parkeri (S. Watson) H. St. John -- not accepted
  Rosa spinosissima L. -- accepted -- Burnet rose, Scotch rose, Scotchbriar
  Rosa spithamea S. Watson -- accepted -- ground rose
  Rosa spithamea var. solitaria L.F. Hend. -- not accepted
  Rosa spithamea var. sonomensis (Greene) Jeps. -- not accepted -- Sonoma ground rose
  Rosa spithamea var. spithamea S. Watson -- not accepted -- ground rose
  Rosa sprengeliana Tratt. -- not accepted
  Rosa standleyi Rydb. -- not accepted
  Rosa stellata Wooton -- accepted -- desert rose, star rose
  Rosa stellata ssp. abyssa A.M. Phillips -- accepted -- desert rose, Grand Cayon rose
  Rosa stellata ssp. mirifica (Greene) W.H. Lewis -- accepted -- desert rose, wonder rose
  Rosa stellata ssp. mirifica var. erlansoniae W.H. Lewis -- not accepted -- desert rose
  Rosa stellata ssp. mirifica var. mirifica (Greene) Cockerell -- not accepted -- desert rose
  Rosa stellata ssp. stellata Wooton -- accepted -- desert rose
  Rosa stellata var. abyssa (A.M. Phillips) N.H. Holmgren -- not accepted
  Rosa stellata var. erlansoniae W.H. Lewis -- not accepted -- desert rose
  Rosa stellata var. mirifica (Greene) Cockerell -- not accepted -- desert rose
  Rosa suaveolens Pursh -- not accepted
  Rosa subblanda Rydb. -- not accepted
  Rosa subcanina (Christ) Crép. -- not accepted
  Rosa subglauca Rydb. -- not accepted
  Rosa subserrulata Rydb. -- not accepted
  Rosa suffulta Greene -- not accepted
  Rosa suffulta var. relicta (Erlanson) Deam -- not accepted
  Rosa sweginzowii Koehne -- accepted -- Sweginzow's rose
  Rosa ternata Poir. -- not accepted
  Rosa terrens Lunell -- not accepted
  Rosa texarkana Rydb. -- not accepted
  Rosa thunbergii Tratt. -- not accepted
  Rosa tomentosa Sm. -- accepted -- whitewoolly rose
  Rosa tomentosa var. globulosa Rouy -- not accepted
  Rosa treleasei Rydb. -- not accepted
  Rosa trifoliata Bosc -- not accepted
  Rosa triphylla Roxb. ex Lindl. -- not accepted
  Rosa tuschetica Boiss. -- accepted
  Rosa ultramontana (S. Watson) A. Heller -- not accepted
  Rosa underwoodii Rydb. -- not accepted
  Rosa vernonii Greene -- not accepted
  Rosa villosa L. -- accepted -- apple rose
  Rosa villosa ssp. mollis (Sm.) Crép. -- not accepted
  Rosa virginiana Mill. -- accepted -- Virginia rose
  Rosa virginiana var. arkansana (Porter) MacMill. -- not accepted
  Rosa virginiana var. lamprophylla (Rydb.) Fernald -- not accepted -- Virginia rose
  Rosa virginiana var. virginiana Mill. -- not accepted -- Virginia rose
  Rosa vosagiaca N.H.F. Desp. -- not accepted
  Rosa watsoniana Crép. -- not accepted
  Rosa webbiana Wall. ex Royle -- accepted
  Rosa wichuraiana Crép. -- not accepted -- memorial rose, Wichura's rose
  Rosa wichurana Crép. -- not accepted -- memorial rose, Wichura's rose
  Rosa williamsii Fernald -- not accepted -- rosier de Williams
  Rosa willmottiae Hemsl. -- accepted -- Willmott's rose
  Rosa woodsii Lindl. -- accepted -- Woods' rose
  Rosa woodsii ssp. arizonica (Rydb.) W.H. Lewis & Ertter -- accepted -- Woods' Arizona rose
  Rosa woodsii ssp. gratissima (Greene) W.H. Lewis & Ertter -- accepted -- Tehachapi rose
  Rosa woodsii ssp. manca (Greene) W.H. Lewis & Ertter -- accepted -- Mancos rose
  Rosa woodsii ssp. puberulenta Ertter -- accepted -- Plateau rose
  Rosa woodsii ssp. ultramontana (S. Watson) Roy L. Taylor & MacBryde -- accepted -- Woods' rose
  Rosa woodsii ssp. woodsii Lindl. -- accepted -- Woods' rose
  Rosa woodsii var. adenosepala (Wooton & Standl.) W.C. Martin & C.R. Hutchins -- not accepted
  Rosa woodsii var. arizonica (Rydb.) W.C. Martin & C.R. Hutchins -- not accepted
  Rosa woodsii var. fendleri (Crép.) Rydb. -- not accepted -- Fendler rose
  Rosa woodsii var. glabrata (Parish) Cole -- not accepted -- Woods' rose
  Rosa woodsii var. granulifera (Rydb.) W.C. Martin & C.R. Hutchins -- not accepted
  Rosa woodsii var. gratissima (Greene) Cole -- not accepted -- Tehachapi rose
  Rosa woodsii var. hypoleuca (Wooton & Standl.) W.C. Martin & C.R. Hutchins -- not accepted
  Rosa woodsii var. macounii (Greene) W.C. Martin & C.R. Hutchins -- not accepted
  Rosa woodsii var. mohavensis (Parish) Jeps. -- not accepted
  Rosa woodsii var. terrens (Lunell) Breitung -- not accepted
  Rosa woodsii var. ultramontana (S. Watson) Jeps. -- not accepted -- Woods' rose
  Rosa woodsii var. woodsii Lindl. -- not accepted -- Woods' rose
  Rosa X alba L. (pro sp.) -- accepted -- white rose of York
  Rosa X alba var. semiplena hort. -- not accepted
  Rosa X anemonoides Rehder (pro sp.) -- not accepted -- rose
  Rosa X bifera (Poir.) Pers. -- not accepted
  Rosa X borboniana N.H.F. Desp. (pro sp.) -- accepted -- Bourbon rose
  Rosa X centifolia L. (pro sp.) -- accepted -- cabbage rose
  Rosa X collaris Rydb. (pro sp.) -- accepted
  Rosa X damascena Mill. (pro sp.) -- accepted -- damask rose
  Rosa X dulcissima Lunell (pro sp.) -- accepted -- rose
  Rosa X dumetorum Thuill. (pro sp.) -- not accepted -- corymb rose
  Rosa X dupontii Déségl. -- accepted
  Rosa X engelmannii S. Watson (pro sp.) -- accepted
  Rosa X harisonii Rivers -- accepted
  Rosa X housei Erlanson (pro sp.) -- accepted -- House's rose
  Rosa X iwara Sieber ex Regel -- accepted
  Rosa X kamtchatica Vent. -- accepted
  Rosa X novae-angliae W.H. Lewis -- accepted
  Rosa X odorata (Andrews) Sweet (pro sp.) -- accepted -- tea rose
  Rosa X palustriformis (Rydb.) Voss -- accepted -- rose
  Rosa X rehderiana Blackburn -- accepted -- polyantha rose
  Rosa X rudiuscula Greene (pro sp.) -- not accepted -- rose
  Rosa X waitziana Tratt. -- accepted
  Rosa xanthina Lindl. -- accepted -- rose, yellow rose
  Rosa yainacensis Greene -- not accepted -- Cascade rose
  Rosaceae -- accepted -- roses
  Rubacer Rydb. -- not accepted
  Rubacer columbianum (Millsp.) Rydb. -- not accepted
  Rubacer odoratum (L.) Rydb. -- not accepted
  Rubacer odoratus (L.) Rydb. -- not accepted
  Rubacer parviflorum (Nutt.) Rydb. -- not accepted
  Rubacer tomentosum Rydb. -- not accepted
  Rubacer velutinum (W.H. Brewer) A. Heller -- not accepted
  Rubus L. -- accepted -- blackberry, brambles, framboises, ronces
  Rubus abactus L.H. Bailey -- not accepted
  Rubus abbrevians Blanch. -- not accepted
  Rubus ablatus L.H. Bailey -- not accepted
  Rubus aboriginum Rydb. -- not accepted -- garden dewberry
  Rubus abundiflorus L.H. Bailey -- not accepted
  Rubus acadiensis L.H. Bailey -- not accepted
  Rubus acalyphaceus (Greene) Rydb. -- not accepted
  Rubus acaulis Michx. -- not accepted
  Rubus acer L.H. Bailey -- not accepted
  Rubus acridens L.H. Bailey -- not accepted
  Rubus aculiferus Fernald -- not accepted -- thorny dewberry
  Rubus adenocaulis Fernald -- not accepted -- glandstem dewberry
  Rubus adirondackensis L.H. Bailey -- not accepted
  Rubus adjacens Fernald -- not accepted -- peaty dewberry
  Rubus aegopodioides Ser. -- not accepted
  Rubus agilis L.H. Bailey -- not accepted
  Rubus akermanii Fernald -- not accepted
  Rubus alacer L.H. Bailey -- not accepted
  Rubus alaskensis L.H. Bailey -- not accepted -- Alaska blackberry
  Rubus albescens Roxb. -- not accepted
  Rubus aliceae L.H. Bailey -- not accepted -- roadside raspberry
  Rubus alius L.H. Bailey -- not accepted
  Rubus allegheniensis Porter -- accepted -- Allegheny blackberry
  Rubus allegheniensis var. allegheniensis Porter -- not accepted -- Allegheny blackberry
  Rubus allegheniensis var. gravesii Fernald -- not accepted -- Graves' blackberry
  Rubus allegheniensis var. neoscoticus (Fernald) L.H. Bailey -- not accepted
  Rubus allegheniensis var. plausus L.H. Bailey -- not accepted
  Rubus allegheniensis var. populifolius Fernald -- not accepted
  Rubus almus (L.H. Bailey) L.H. Bailey -- not accepted
  Rubus alter L.H. Bailey -- not accepted -- Maine dewberry
  Rubus alumnus L.H. Bailey -- not accepted -- oldfield blackberry
  Rubus amabilis Blanch. -- not accepted
  Rubus ambigens Fernald -- not accepted
  Rubus americanus (Pers.) Britton -- not accepted
  Rubus amicalis Blanch. -- not accepted
  Rubus amnicola Blanch. -- not accepted
  Rubus amnicolus Blanch. -- not accepted
  Rubus amplificatus Lees -- accepted
  Rubus andrewsianus Blanch. -- not accepted -- Andrews' blackberry
  Rubus angustifoliatus L.H. Bailey -- not accepted
  Rubus angustus L.H. Bailey -- not accepted
  Rubus apianus L.H. Bailey -- not accepted
  Rubus apogaeus L.H. Bailey -- not accepted -- falling dewberry
  Rubus apparatus L.H. Bailey -- not accepted
  Rubus aptatus L.H. Bailey -- not accepted -- drybank dewberry
  Rubus arcticus L. -- accepted -- arctic blackberry
  Rubus arcticus ssp. acaulis (Michx.) Focke -- accepted -- dwarf raspberry
  Rubus arcticus ssp. arcticus L. -- accepted -- arctic blackberry
  Rubus arcticus ssp. stellatus (Sm.) B. Boivin -- accepted -- arctic blackberry
  Rubus arcticus var. acaulis (Michx.) B. Boivin -- not accepted
  Rubus arcticus var. pentaphylloides Hultén -- not accepted
  Rubus arcticus var. stellatus (Sm.) B. Boivin -- not accepted
  Rubus arcuans Fernald & H. St. John -- not accepted -- wand dewberry
  Rubus arenicola Blanch. -- not accepted -- sanddwelling dewberry
  Rubus arenicolus Blanch. -- not accepted
  Rubus argutinus L.H. Bailey -- not accepted
  Rubus argutus Link -- accepted -- prickly Florida blackberry, sawtooth blackberry
  Rubus argutus var. randii (L.H. Bailey) L.H. Bailey -- not accepted
  Rubus argutus var. scissus L.H. Bailey -- not accepted -- sawtooth blackberry
  Rubus arizonensis Focke -- not accepted -- Arizona blackberry, Arizona dewberry
  Rubus arizonicus (Greene) Rydb. -- not accepted
  Rubus armatus (Fernald) L.H. Bailey -- not accepted
  Rubus armeniacus Focke -- not accepted -- Himalayan blackberry
  Rubus arrectus L.H. Bailey -- not accepted
  Rubus arundelanus Blanch. -- not accepted
  Rubus arundelanus var. jeckylanus (Blanch.) L.H. Bailey -- not accepted
  Rubus arvensis L.H. Bailey -- not accepted -- field blackberry
  Rubus ascendens Blanch. -- not accepted
  Rubus ashei L.H. Bailey -- not accepted
  Rubus associus Hanes -- not accepted
  Rubus attractus L.H. Bailey -- not accepted
  Rubus atwoodii L.H. Bailey -- not accepted
  Rubus audax L.H. Bailey -- not accepted -- Tampa blackberry
  Rubus auroralis L.H. Bailey -- not accepted
  Rubus austrinus L.H. Bailey -- not accepted
  Rubus avipes L.H. Bailey -- not accepted
  Rubus baileyanus Britton -- not accepted -- Bailey's dewberry
  Rubus balkei L.H. Bailey -- not accepted -- sawtooth blackberry
  Rubus barbarus L.H. Bailey -- not accepted
  Rubus bartonianus M. Peck -- accepted -- Barton's raspberry
  Rubus beadlei L.H. Bailey -- not accepted
  Rubus beatus L.H. Bailey -- not accepted
  Rubus bellobatus L.H. Bailey -- not accepted -- Kittatinny blackberry
  Rubus benneri L.H. Bailey -- not accepted
  Rubus bernardinus (Greene) Fedde -- not accepted
  Rubus besseyi L.H. Bailey -- not accepted
  Rubus betulifolius Small -- not accepted
  Rubus bicknellii L.H. Bailey -- not accepted -- Nantucket blackberry
  Rubus biformispinus Blanch. -- not accepted -- pasture dewberry
  Rubus bifrons Vest -- accepted -- Himalayan berry
  Rubus bigelovianus L.H. Bailey -- not accepted -- lowland blackberry
  Rubus blakei L.H. Bailey -- not accepted
  Rubus blanchardianus (L.H. Bailey) L.H. Bailey -- not accepted -- Blanchard's dewberry
  Rubus bollianus L.H. Bailey -- not accepted
  Rubus bonus L.H. Bailey -- not accepted
  Rubus boottianus L.H. Bailey -- not accepted
  Rubus botruosus L.H. Bailey -- not accepted
  Rubus boyntonii Ashe -- not accepted -- Boynton's dewberry
  Rubus bractealis L.H. Bailey -- not accepted
  Rubus bracteolifer Fernald -- not accepted
  Rubus bracteoliferus Fernald -- not accepted
  Rubus brainerdii Rydb. -- not accepted
  Rubus bretonis L.H. Bailey -- not accepted
  Rubus brevipedalis L.H. Bailey -- not accepted
  Rubus burnhamii L.H. Bailey -- not accepted -- Burnham's blackberry
  Rubus bushii L.H. Bailey -- not accepted -- Bush's blackberry
  Rubus cacaponensis H.A. Davis & T. Davis -- not accepted
  Rubus caesius L. -- accepted -- European dewberry
  Rubus calycinoides Hayata ex Koidz. -- not accepted
  Rubus campester L.H. Bailey -- not accepted
  Rubus campestris L.H. Bailey -- not accepted
  Rubus camurus L.H. Bailey -- not accepted
  Rubus canaanensis H.A. Davis & T. Davis -- not accepted
  Rubus canadensis L. -- accepted -- smooth blackberry
  Rubus canadensis var. elegantulus (Blanch.) Farw. -- not accepted
  Rubus canadensis var. imus L.H. Bailey -- not accepted
  Rubus cardianus L.H. Bailey -- not accepted
  Rubus carolinianus Rydb. -- not accepted
  Rubus carpinifolius Rydb. -- not accepted
  Rubus cathartium Fernald -- not accepted
  Rubus cauliflorus L.H. Bailey -- not accepted
  Rubus celer L.H. Bailey -- not accepted
  Rubus census L.H. Bailey -- not accepted
  Rubus centralis L.H. Bailey -- not accepted -- Illinois dewberry
  Rubus chamaemorus L. -- accepted -- cloudberry
  Rubus chapmanii L.H. Bailey -- not accepted
  Rubus clairbrownii L.H. Bailey -- not accepted
  Rubus clandestinus L.H. Bailey -- not accepted
  Rubus clarus L.H. Bailey -- not accepted -- Mt. Vernon dewberry
  Rubus clausenii L.H. Bailey -- not accepted
  Rubus cockburnianus Hemsl. -- accepted
  Rubus coloniatus L.H. Bailey -- not accepted
  Rubus columbianus (Millsp.) Rydb. -- not accepted
  Rubus complex L.H. Bailey -- not accepted
  Rubus compos L.H. Bailey -- not accepted
  Rubus conabilis L.H. Bailey -- not accepted
  Rubus conanictuensis L.H. Bailey -- not accepted
  Rubus conanicutensis L.H. Bailey -- not accepted -- Conanicut Island blackberry
  Rubus concameratus H.A. Davis & T. Davis -- not accepted -- West Virginia blackberry
  Rubus condensiflorus L.H. Bailey -- not accepted
  Rubus condignus L.H. Bailey -- not accepted
  Rubus congruus L.H. Bailey -- not accepted
  Rubus connixus L.H. Bailey -- not accepted
  Rubus continentalis (Focke) L.H. Bailey -- not accepted
  Rubus cordialis L.H. Bailey -- not accepted
  Rubus cordifrons (L.H. Bailey) L.H. Bailey -- not accepted
  Rubus corei L.H. Bailey -- not accepted
  Rubus coronarius (Sims) Sweet -- accepted -- cultivated raspberry
  Rubus crataegifolius Bunge -- accepted
  Rubus cubitans Blanch. -- not accepted -- sprawling dewberry
  Rubus cuneifolius Pursh -- accepted -- sand blackberry
  Rubus cuneifolius var. angustior L.H. Bailey -- not accepted
  Rubus cuneifolius var. austrifer L.H. Bailey -- not accepted
  Rubus cuneifolius var. spiniceps L.H. Bailey -- not accepted
  Rubus cuneifolius var. subellipticus Fernald -- not accepted
  Rubus cupressorum Fernald -- not accepted
  Rubus currulis L.H. Bailey -- not accepted
  Rubus curtipes L.H. Bailey -- not accepted -- shortstalk dewberry
  Rubus dalibarda L. -- not accepted
  Rubus darlingtonii L.H. Bailey -- not accepted -- Porcupine Mountain blackberry
  Rubus davisiorum L.H. Bailey -- not accepted
  Rubus deamii L.H. Bailey -- not accepted -- Deam's dewberry
  Rubus deaneanus L.H. Bailey -- not accepted
  Rubus decor L.H. Bailey -- not accepted
  Rubus defectionis Fernald -- not accepted -- eclipse blackberry
  Rubus deliciosus Torr. -- accepted -- delicious raspberry
  Rubus deliciosus var. neomexicanus (A. Gray) Kearney -- not accepted
  Rubus demareanus L.H. Bailey -- not accepted
  Rubus densipubens L.H. Bailey -- not accepted
  Rubus densissimus H.A. Davis & T. Davis -- not accepted -- Morgantown blackberry
  Rubus depavitus L.H. Bailey -- not accepted -- Aberdeen dewberry
  Rubus difformis L.H. Bailey -- not accepted
  Rubus discolor Weihe & Nees -- not accepted -- Himalaya blackberry, Himalayan blackberry
  Rubus discretus L.H. Bailey -- not accepted
  Rubus dissensus L.H. Bailey -- not accepted
  Rubus dissimilis L.H. Bailey -- not accepted -- bristly Oswego blackberry
  Rubus dissitiflorus Fernald -- not accepted
  Rubus distinctus L.H. Bailey -- not accepted
  Rubus dives L.H. Bailey -- not accepted
  Rubus dixiensis H.A. Davis, A.M. Fuller & T. Davis -- not accepted
  Rubus duplaris Shinners -- not accepted
  Rubus eastwoodianus Rydb. -- not accepted
  Rubus eflagellaris L.H. Bailey -- not accepted
  Rubus egglestonii Blanch. -- not accepted
  Rubus electus L.H. Bailey -- not accepted
  Rubus elegantulus Blanch. -- not accepted -- showy blackberry
  Rubus ellipticus Sm. -- accepted -- yellow Himalayan raspberry
  Rubus ellipticus var. ellipticus Sm. -- accepted -- yellow Himalayan raspberry
  Rubus ellipticus var. obcordatus Focke -- accepted -- yellow Himalayan raspberry
  Rubus elongatus Brainerd & Peitersen -- not accepted
  Rubus emeritus L.H. Bailey -- not accepted -- bitterfruit dewberry
  Rubus enslenii Tratt. -- not accepted
  Rubus eriensis L.H. Bailey -- not accepted
  Rubus escatilis L.H. Bailey -- not accepted
  Rubus exemptus L.H. Bailey -- not accepted
  Rubus exeter L.H. Bailey -- not accepted
  Rubus exlex L.H. Bailey -- not accepted
  Rubus exrubicundus L.H. Bailey -- not accepted
  Rubus exsularis L.H. Bailey -- not accepted -- fenceline dewberry
  Rubus exter L.H. Bailey -- not accepted -- Baton Rouge blackberry
  Rubus exutus L.H. Bailey -- not accepted
  Rubus facetus L.H. Bailey -- not accepted
  Rubus fandus L.H. Bailey -- not accepted
  Rubus fassettii L.H. Bailey -- not accepted
  Rubus fatuus L.H. Bailey -- not accepted
  Rubus fecundus L.H. Bailey -- not accepted -- DC dewberry
  Rubus felix L.H. Bailey -- not accepted -- woodland dewberry
  Rubus fernaldianus L.H. Bailey -- not accepted
  Rubus ferrofluvius H.A. Davis, A.M. Fuller & T. Davis -- not accepted
  Rubus fissidens L.H. Bailey -- not accepted
  Rubus flagellaris Willd. -- accepted -- northern dewberry, whiplash dewberry
  Rubus flagellaris var. almus L.H. Bailey -- not accepted
  Rubus flagellaris var. humifusus (Torr. & A. Gray) B. Boivin -- not accepted
  Rubus flagellaris var. occidualis L.H. Bailey -- not accepted
  Rubus flavinanus Blanch. -- not accepted -- Windham County blackberry
  Rubus florenceae L.H. Bailey -- not accepted
  Rubus floricomus Blanch. -- not accepted -- manyflower blackberry
  Rubus floridensis L.H. Bailey -- not accepted
  Rubus floridus Tratt. -- not accepted
  Rubus floriger L.H. Bailey -- not accepted
  Rubus florulentus Focke -- accepted -- big blackberry
  Rubus foliaceus L.H. Bailey -- not accepted
  Rubus folioflorus L.H. Bailey -- not accepted
  Rubus forestalis L.H. Bailey -- not accepted
  Rubus franciscanus Rydb. -- not accepted
  Rubus fraternalis L.H. Bailey -- not accepted -- northeastern dewberry
  Rubus fraternus Brainerd & Peitersen -- not accepted
  Rubus frondisentis Blanch. -- not accepted -- leafy blackberry
  Rubus frondosus Bigelow -- not accepted -- yankee blackberry
  Rubus fructifer L.H. Bailey -- not accepted
  Rubus frustratus L.H. Bailey -- not accepted
  Rubus fruticosus L. -- not accepted -- bramble blackberry, shrubby blackberry, wild blackberry complex
  Rubus fryei H.A. Davis & T. Davis -- accepted -- Cacapon River blackberry
  Rubus fulleri L.H. Bailey -- not accepted
  Rubus furtivus L.H. Bailey -- not accepted -- openground dewberry
  Rubus fuscus Weihe & Nees ex Bluff & Fingerh. -- not accepted
  Rubus ganderi L.H. Bailey -- not accepted
  Rubus gattingeri L.H. Bailey -- not accepted
  Rubus geniculatus Kaltenb. -- accepted -- false Himalayan berry
  Rubus geophilus Blanch. -- not accepted
  Rubus georgianus L.H. Bailey -- not accepted
  Rubus georgiensis L.H. Bailey -- not accepted
  Rubus glandicaulis Blanch. -- not accepted -- glandstem blackberry
  Rubus glaucifolius Kellogg -- accepted -- San Diego raspberry
  Rubus glaucifolius ssp. ganderi (L.H. Bailey) R.M. Beauch. -- not accepted
  Rubus glaucifolius var. ganderi (L.H. Bailey) Munz -- not accepted -- Cuyamaca raspberry
  Rubus glaucifolius var. glaucifolius Kellogg -- not accepted -- San Diego raspberry
  Rubus glaucus Benth. -- accepted -- Andes berry, raspberry
  Rubus gnarus L.H. Bailey -- not accepted -- Pollock's Mill blackberry
  Rubus gordonii L.H. Bailey ex Core -- not accepted
  Rubus grandidens L.H. Bailey -- not accepted
  Rubus greeneanus L.H. Bailey -- not accepted
  Rubus grimesii L.H. Bailey -- not accepted -- Grimes' dewberry
  Rubus griseus L.H. Bailey -- not accepted -- Loogootee blackberry
  Rubus groutianus Blanch. -- not accepted
  Rubus gulosus L.H. Bailey -- not accepted -- New Brunswick blackberry
  Rubus hancinianus L.H. Bailey -- not accepted -- windswept prairie dewberry
  Rubus hanesii L.H. Bailey -- not accepted -- Hanes' blackberry
  Rubus harmonicus L.H. Bailey -- not accepted -- Kennebunkport dewberry
  Rubus harperi L.H. Bailey -- not accepted
  Rubus hawaiensis A. Gray -- accepted -- Hawai'i blackberry
  Rubus hawaiensis var. inermis Wawra -- not accepted
  Rubus hayata-koidzumii Naruh. -- accepted -- yü-shan raspberry
  Rubus hesperius Piper -- not accepted
  Rubus heterogeneous L.H. Bailey -- not accepted
  Rubus heterophyllus Willd. -- accepted -- ecotone blackberry
  Rubus hispidoides L.H. Bailey -- not accepted -- bog dewberry
  Rubus hispidus L. -- accepted -- bristly dewberry
  Rubus hispidus var. blanchardianus L.H. Bailey -- not accepted
  Rubus hispidus var. cupulifer L.H. Bailey -- not accepted
  Rubus hispidus var. obovalis (Michx.) Fernald -- not accepted
  Rubus hispidus var. suberectus Peck -- not accepted
  Rubus honorus L.H. Bailey -- not accepted
  Rubus housei L.H. Bailey -- not accepted
  Rubus humei L.H. Bailey -- not accepted
  Rubus humilior L.H. Bailey -- not accepted
  Rubus huttonii L.H. Bailey -- not accepted -- Hutton's dewberry
  Rubus hypolasius Fernald -- not accepted -- pineland dewberry
  Rubus ictus L.H. Bailey -- not accepted -- savannah dewberry
  Rubus idaeus L. -- accepted -- American red raspberry, common red raspberry, western red raspberry
  Rubus idaeus ssp. idaeus L. -- not accepted -- American red raspberry
  Rubus idaeus ssp. melanolasius (Dieck) Focke -- not accepted
  Rubus idaeus ssp. melanotrachys Focke -- not accepted
  Rubus idaeus ssp. sachalinensis (H. Lév.) Focke -- not accepted
  Rubus idaeus ssp. strigosus (Michx.) Focke -- not accepted -- common red raspberry, grayleaf raspberry, grayleaf red raspberry, red raspberry
  Rubus idaeus var. aculeatissimus Regel & Tiling -- not accepted
  Rubus idaeus var. americanus Torr. -- not accepted
  Rubus idaeus var. arizonicus (Greene) Fernald -- not accepted
  Rubus idaeus var. canadensis Richardson ex Fernald -- not accepted
  Rubus idaeus var. caudatus (B.L. Rob. & Schrenk) Fernald & B.G. Schub. -- not accepted
  Rubus idaeus var. egglestonii (Blanch.) Fernald -- not accepted
  Rubus idaeus var. eucyclus Fernald & Weath. -- not accepted
  Rubus idaeus var. gracilipes M.E. Jones -- not accepted
  Rubus idaeus var. heterolasius Fernald -- not accepted
  Rubus idaeus var. idaeus L. -- accepted -- European red raspberry
  Rubus idaeus var. melanolasius (Dieck) R.J. Davis -- not accepted
  Rubus idaeus var. melanotrachys (Focke) Fernald -- not accepted
  Rubus idaeus var. peramoenus (Greene) Fernald -- not accepted
  Rubus idaeus var. strigosus (Michx.) Maxim. -- not accepted
  Rubus idaeus var. viburnifolius (Greene) Greene ex A. Berger -- not accepted
  Rubus ignarus L.H. Bailey -- not accepted
  Rubus illecebrosus Focke -- accepted -- strawberry raspberry
  Rubus illustris L.H. Bailey -- not accepted
  Rubus immanis Ashe -- not accepted -- Watauga River blackberry
  Rubus impar L.H. Bailey -- not accepted -- Posey County blackberry
  Rubus imperiorum Fernald -- not accepted
  Rubus impos L.H. Bailey -- not accepted
  Rubus incisifrons L.H. Bailey -- not accepted
  Rubus inclinis L.H. Bailey -- not accepted -- marshland blackberry
  Rubus independens L.H. Bailey -- not accepted
  Rubus indianensis L.H. Bailey -- not accepted
  Rubus inferior L.H. Bailey -- not accepted -- Ocala blackberry
  Rubus iniens L.H. Bailey -- not accepted -- sandyfield dewberry
  Rubus injunctus L.H. Bailey -- not accepted
  Rubus inobvius L.H. Bailey -- not accepted
  Rubus insons L.H. Bailey -- not accepted -- New England blackberry
  Rubus insulanus L.H. Bailey -- not accepted -- island blackberry
  Rubus interioris L.H. Bailey -- not accepted
  Rubus invisus (L.H. Bailey) Britton -- not accepted -- upland dewberry
  Rubus irregularis L.H. Bailey -- not accepted
  Rubus ithacanus L.H. Bailey -- not accepted -- Ithaca blackberry
  Rubus jacens Blanch. -- not accepted -- spreading dewberry
  Rubus jactus L.H. Bailey -- not accepted
  Rubus janssonii L.H. Bailey -- not accepted
  Rubus japonicus L. -- not accepted
  Rubus jaysmithii L.H. Bailey -- not accepted
  Rubus jaysmithii var. angustior L.H. Bailey -- not accepted
  Rubus jejunus L.H. Bailey -- not accepted
  Rubus jennisonii L.H. Bailey -- not accepted
  Rubus jugosus L.H. Bailey -- not accepted
  Rubus junceus Blanch. -- not accepted -- herbaceous blackberry
  Rubus junior L.H. Bailey -- not accepted
  Rubus kalamazoensis L.H. Bailey -- not accepted
  Rubus kansanus L.H. Bailey -- not accepted
  Rubus kelloggii L.H. Bailey -- not accepted -- Kellogg's blackberry
  Rubus kennedyanus Fernald -- not accepted -- Kennedy's blackberry
  Rubus kentuckiensis L.H. Bailey -- not accepted
  Rubus laciniatus Willd. -- accepted -- cut-leaved blackberry, cutleaf blackberry
  Rubus laetabilis L.H. Bailey -- not accepted
  Rubus laevior (L.H. Bailey) Fernald -- not accepted
  Rubus largus L.H. Bailey -- not accepted -- abundant blackberry, oakwoods dewberry
  Rubus lasiococcus A. Gray -- accepted -- roughfruit berry
  Rubus lassus L.H. Bailey -- not accepted
  Rubus latens L.H. Bailey -- not accepted -- Massachusetts blackberry
  Rubus latifoliolus L.H. Bailey -- not accepted
  Rubus laudatus A. Berger -- not accepted -- plains blackberry
  Rubus lawrencei L.H. Bailey -- not accepted -- Adirondack blackberry
  Rubus leggii H.A. Davis & T. Davis -- not accepted
  Rubus lemurum S.W. Br. -- not accepted
  Rubus lepagei L.H. Bailey -- not accepted
  Rubus leucodermis Douglas ex Torr. & A. Gray -- accepted -- western raspberry, whitebark raspberry
  Rubus leucodermis ssp. bernardinus (Greene) Thorne -- not accepted
  Rubus leucodermis var. bernardinus (Greene) Jeps. -- not accepted -- whitebark raspberry
  Rubus leucodermis var. glaucifolius (Kellogg) Jeps. -- not accepted
  Rubus leucodermis var. leucodermis Douglas ex Torr. & A. Gray -- not accepted -- whitebark raspberry
  Rubus leucodermis var. nigerrimus (Greene) H. St. John -- not accepted
  Rubus leucodermis var. trinitatis A. Berger -- not accepted -- whitebark raspberry
  Rubus leviculus L.H. Bailey -- not accepted -- bottomland dewberry
  Rubus libratus L.H. Bailey -- not accepted
  Rubus licens L.H. Bailey -- not accepted
  Rubus licitus L.H. Bailey -- not accepted
  Rubus limulus L.H. Bailey -- not accepted
  Rubus linkianus Ser. -- not accepted -- Link's blackberry
  Rubus litoreus L.H. Bailey -- not accepted
  Rubus localis L.H. Bailey -- not accepted
  Rubus loganobaccus L.H. Bailey -- accepted -- loganberry
  Rubus longii Fernald -- not accepted -- Long's blackberry
  Rubus longipes Fernald -- not accepted
  Rubus longissimus L.H. Bailey -- not accepted
  Rubus louisianus A. Berger -- not accepted
  Rubus lucidus Rydb. -- not accepted -- manatee dewberry, shiny dewberry
  Rubus lundelliorum L.H. Bailey -- not accepted
  Rubus macdanielsii L.H. Bailey -- not accepted
  Rubus macraei A. Gray -- accepted -- 'akala
  Rubus macropetalus Douglas ex Hook. -- not accepted
  Rubus macrophyllus Weihe & Nees -- accepted -- largeleaf blackberry
  Rubus macvaughii L.H. Bailey -- accepted -- MacVaugh's dewberry
  Rubus magniflorus L.H. Bailey -- not accepted
  Rubus mainensis L.H. Bailey -- not accepted
  Rubus maltei L.H. Bailey -- not accepted
  Rubus malus L.H. Bailey -- not accepted
  Rubus mananensis L.H. Bailey ex Weath. & J. Adams -- accepted -- Grand Manan dewberry
  Rubus maniseesensis L.H. Bailey -- accepted -- Mohican Trail dewberry
  Rubus marilandicus L.H. Bailey -- not accepted
  Rubus masseyi L.H. Bailey -- not accepted
  Rubus mediocris L.H. Bailey -- not accepted
  Rubus medius Kuntze -- not accepted
  Rubus melanolasius Dieck -- not accepted
  Rubus melanotrachys (Focke) Rydb. -- not accepted
  Rubus meracus L.H. Bailey -- not accepted -- dryslope dewberry
  Rubus michiganensis (Card ex L.H. Bailey) L.H. Bailey -- not accepted -- Michigan dewberry
  Rubus millspaughii L.H. Bailey -- not accepted
  Rubus minnesotanus L.H. Bailey -- not accepted
  Rubus miriflorus L.H. Bailey -- not accepted
  Rubus mirus L.H. Bailey -- not accepted -- marvel dewberry
  Rubus miscix L.H. Bailey -- not accepted
  Rubus mississippianus L.H. Bailey -- not accepted
  Rubus missouricus L.H. Bailey -- not accepted -- Missouri dewberry
  Rubus mollior L.H. Bailey -- not accepted -- softleaf blackberry
  Rubus moluccanus L. -- accepted -- eelkek, kohkihl, Molucca bramble, Molucca raspberry, soni, wa ngandrongandro, wild blackberry, wild raspberry
  Rubus monongaliensis L.H. Bailey -- not accepted
  Rubus montensis L.H. Bailey -- not accepted -- mountaintop blackberry
  Rubus montensis var. superior L.H. Bailey -- not accepted
  Rubus montpelierensis Blanch. ex L.H. Bailey -- not accepted
  Rubus mucronatus Ser. -- not accepted
  Rubus multifer L.H. Bailey -- not accepted -- kinnickinnick dewberry
  Rubus multiformis Blanch. -- not accepted -- variable blackberry
  Rubus multilicius L.H. Bailey -- not accepted
  Rubus multispinus Blanch. -- not accepted -- devil's blackberry
  Rubus mundus L.H. Bailey -- not accepted -- oldfield dewberry
  Rubus navus L.H. Bailey -- not accepted -- Grand Lake blackberry
  Rubus nefrens L.H. Bailey -- not accepted -- prickless dewberry
  Rubus neglectus Peck -- not accepted
  Rubus neomexicanus A. Gray -- accepted -- New Mexico raspberry
  Rubus neonefrens L.H. Bailey -- not accepted
  Rubus nescius L.H. Bailey -- not accepted
  Rubus nessianus L.H. Bailey -- not accepted
  Rubus nigerrimus (Greene) Rydb. -- not accepted -- dark raspberry
  Rubus nigricans Rydb. -- not accepted
  Rubus nigrobaccus L.H. Bailey -- not accepted
  Rubus nivalis Douglas ex Hook. -- accepted -- snow raspberry
  Rubus niveus Thunb. -- accepted -- hill raspberry, Mysore raspberry, snowpeaks raspberry
  Rubus nocivus L.H. Bailey -- not accepted
  Rubus notatus L.H. Bailey -- not accepted -- bristle berry
  Rubus notatus var. boreus L.H. Bailey -- not accepted
  Rubus notatus var. notatus L.H. Bailey -- not accepted -- bristle berry
  Rubus notatus var. ortus L.H. Bailey -- not accepted
  Rubus novanglicus L.H. Bailey -- not accepted -- New England dewberry
  Rubus noveboracus L.H. Bailey -- not accepted -- New York blackberry
  Rubus novocaesarius L.H. Bailey -- accepted -- Tuckahoe dewberry
  Rubus nuperus L.H. Bailey -- not accepted
  Rubus nutkanus Moc. ex Ser. -- not accepted
  Rubus nutkanus var. velutinus W.H. Brewer -- not accepted
  Rubus obsessus L.H. Bailey -- not accepted -- New York dewberry
  Rubus obsessus var. unilaris L.H. Bailey -- not accepted
  Rubus obvius L.H. Bailey -- not accepted -- woodborder dewberry
  Rubus occidentalis L. -- accepted -- black raspberry
  Rubus occidentalis var. flavobaccus Blanch. -- not accepted
  Rubus occidentalis var. leucodermis (Douglas ex Torr. & A. Gray) Focke -- not accepted
  Rubus occidentalis var. pallidus L.H. Bailey -- not accepted
  Rubus occidualis (L.H. Bailey) L.H. Bailey -- not accepted
  Rubus occultus L.H. Bailey -- not accepted
  Rubus odoratus L. -- accepted -- purpleflowering raspberry
  Rubus odoratus var. columbianus Millsp. -- not accepted -- purpleflowering raspberry
  Rubus odoratus var. malachophyllus Fernald -- not accepted -- purpleflowering raspberry
  Rubus odoratus var. odoratus L. -- not accepted -- purpleflowering raspberry
  Rubus offectus L.H. Bailey -- not accepted
  Rubus okeechobeus L.H. Bailey -- not accepted
  Rubus oklahomus L.H. Bailey -- not accepted -- Oklahoma blackberry, Oklahoma dewberry, Oklahoma rose
  Rubus onustus L.H. Bailey -- not accepted
  Rubus oppositus L.H. Bailey -- not accepted
  Rubus orarius Blanch. -- not accepted
  Rubus orbicularis H.A. Davis & T. Davis -- not accepted
  Rubus oriens L.H. Bailey -- not accepted
  Rubus originalis L.H. Bailey -- not accepted -- Cold Spring blackberry
  Rubus ortivus (L.H. Bailey) L.H. Bailey -- not accepted -- Mt. Desert Island blackberry
  Rubus ostryifolius Rydb. -- not accepted -- highbush blackberry
  Rubus ozarkensis L.H. Bailey -- not accepted
  Rubus paganus L.H. Bailey -- not accepted -- St. Lawrence dewberry
  Rubus paludivagus Fernald -- not accepted -- Cape Cod blackberry
  Rubus par L.H. Bailey -- not accepted
  Rubus parcifrondifer L.H. Bailey -- not accepted -- Silver Creek blackberry
  Rubus parlinii L.H. Bailey -- not accepted -- Parlin's dewberry
  Rubus particeps L.H. Bailey -- not accepted -- Kingston dewberry
  Rubus particularis L.H. Bailey -- not accepted -- West Virginia dewberry
  Rubus parviflorus Nutt. -- accepted -- thimbleberry, western thimbleberry
  Rubus parviflorus ssp. velutinus (Hook. & Arn.) Roy L. Taylor & MacBryde -- not accepted
  Rubus parviflorus var. bifarius Fernald -- not accepted
  Rubus parviflorus var. grandiflorus Farw. -- not accepted
  Rubus parviflorus var. heteradenius Fernald -- not accepted
  Rubus parviflorus var. hypomalacus Fernald -- not accepted
  Rubus parviflorus var. parviflorus Nutt. -- not accepted -- thimbleberry, western thimbleberry
  Rubus parviflorus var. parvifolius (A. Gray) Fernald -- not accepted
  Rubus parviflorus var. velutinus (Hook. & Arn.) Greene -- not accepted -- thimbleberry
  Rubus parvifolius L. -- accepted -- threeleaf blackberry
  Rubus pascuus L.H. Bailey -- not accepted -- Chesapeake blackberry
  Rubus pauciflorus Baker -- not accepted
  Rubus paulus L.H. Bailey -- not accepted
  Rubus pauper L.H. Bailey -- not accepted
  Rubus pauperrimus L.H. Bailey -- not accepted
  Rubus pauxillus L.H. Bailey -- not accepted
  Rubus peculiaris Blanch. -- not accepted
  Rubus pedatus Sm. -- accepted -- strawberryleaf raspberry
  Rubus penetrans L.H. Bailey -- not accepted
  Rubus pennus L.H. Bailey -- not accepted
  Rubus pensilvanicus Poir. -- accepted -- Pennsylvania blackberry
  Rubus pensilvanicus var. frondosus (Bigelow) B. Boivin -- not accepted
  Rubus pensylvanicus Poir -- not accepted
  Rubus peracer L.H. Bailey -- not accepted
  Rubus peramoenus (Greene) Rydb. -- not accepted
  Rubus perdebilis L.H. Bailey -- not accepted
  Rubus perfoliosus L.H. Bailey -- not accepted
  Rubus pergratus Blanch. -- not accepted -- upland blackberry
  Rubus pergratus var. pergratus Blanch. -- not accepted -- upland blackberry
  Rubus pergratus var. terrae-novae L.H. Bailey -- not accepted
  Rubus perinvisus L.H. Bailey -- not accepted
  Rubus permixtus Blanch. -- not accepted -- thicket dewberry
  Rubus pernagaeus Fernald -- not accepted -- Smithfield blackberry
  Rubus perpauper L.H. Bailey -- not accepted
  Rubus persistens Rydb. -- not accepted -- persistent blackberry
  Rubus perspicuus L.H. Bailey -- not accepted -- Great Lakes dewberry
  Rubus pervarius (L.H. Bailey) L.H. Bailey -- accepted -- Westminster dewberry
  Rubus philadelphicus Blanch. -- not accepted -- Philadelphia blackberry
  Rubus phoenicolasius Maxim. -- accepted -- Japanese wineberry, wine raspberry, wineberry
  Rubus pityophilus S.J. Sm. -- not accepted
  Rubus plexus Fernald -- not accepted -- tangled dewberry
  Rubus plicatifolius Blanch. -- not accepted -- plaitleaf dewberry
  Rubus pluralis L.H. Bailey -- not accepted
  Rubus plus L.H. Bailey -- not accepted -- hairyleaf dewberry
  Rubus pohlii L.H. Bailey -- not accepted
  Rubus polulus L.H. Bailey -- not accepted
  Rubus polybotrys L.H. Bailey -- not accepted
  Rubus porteri L.H. Bailey -- not accepted -- Pocono Plateau dewberry
  Rubus positivus L.H. Bailey -- accepted -- New London dewberry
  Rubus potis L.H. Bailey -- not accepted
  Rubus praepes L.H. Bailey -- not accepted
  Rubus pratensis L.H. Bailey -- not accepted
  Rubus prestonensis H.A. Davis & T. Davis -- not accepted -- Terra Alta blackberry
  Rubus prior L.H. Bailey -- not accepted
  Rubus probabilis L.H. Bailey -- not accepted -- tree blackberry
  Rubus probativus L.H. Bailey -- not accepted -- Birmingham blackberry
  Rubus problematicus L.H. Bailey -- not accepted
  Rubus probus L.H. Bailey -- accepted -- Queensland raspberry
  Rubus procerus auct. non P.J. Müll. ex Genev. -- not accepted
  Rubus procumbens Muhl. -- not accepted
  Rubus profusiflorus L.H. Bailey -- not accepted
  Rubus pronus L.H. Bailey -- not accepted
  Rubus proprius L.H. Bailey -- not accepted
  Rubus prosper L.H. Bailey -- accepted -- Rhode Island dewberry
  Rubus provincialis L.H. Bailey -- not accepted -- groundberry
  Rubus pubescens Raf. -- accepted -- dwarf red blackberry, dwarf red raspberry
  Rubus pubescens var. alaskensis (L.H. Bailey) B. Boivin -- not accepted
  Rubus pubescens var. paracaulis (L.H. Bailey) B. Boivin -- not accepted
  Rubus pubescens var. pilosifolius A.F. Hill -- not accepted -- dwarf red blackberry
  Rubus pubescens var. pubescens Raf. -- not accepted -- dwarf red blackberry, dwarf red raspberry
  Rubus pubescens var. scius L.H. Bailey -- not accepted -- dwarf red blackberry
  Rubus pubifolius L.H. Bailey -- not accepted -- Eagle Rock blackberry
  Rubus pudens L.H. Bailey -- not accepted
  Rubus pugnax L.H. Bailey -- not accepted -- pugnacious blackberry
  Rubus pulchriflorus L.H. Bailey -- not accepted
  Rubus putus L.H. Bailey -- not accepted
  Rubus quaesitus L.H. Bailey -- accepted -- Prince Edward Island blackberry
  Rubus quebecensis L.H. Bailey -- not accepted
  Rubus quinquelobus Stokes -- not accepted
  Rubus racemiger L.H. Bailey -- not accepted -- racemed dewberry
  Rubus ramifer L.H. Bailey -- not accepted
  Rubus randii (L.H. Bailey) Rydb. -- not accepted
  Rubus randolphiorum L.H. Bailey -- not accepted -- Plymouth blackberry
  Rubus rappii L.H. Bailey -- not accepted
  Rubus ravus L.H. Bailey -- not accepted -- leafy blackberry
  Rubus recurvans Blanch. -- accepted -- recurved blackberry
  Rubus recurvans var. subrecurvans Blanch. -- not accepted
  Rubus recurvicaulis Blanch. -- not accepted -- arching dewberry
  Rubus recurvicaulis var. armatus Fernald -- not accepted
  Rubus recurvicaulis var. inarmatus Blanch. -- not accepted
  Rubus redundans L.H. Bailey -- not accepted
  Rubus regionalis (L.H. Bailey) L.H. Bailey -- not accepted -- Wisconsin dewberry
  Rubus repens (L.) Kuntze -- accepted
  Rubus reravus L.H. Bailey -- not accepted
  Rubus rhodinsulanus L.H. Bailey -- not accepted
  Rubus rhodophyllus Rydb. -- not accepted
  Rubus ribes L.H. Bailey -- not accepted
  Rubus ricei L.H. Bailey -- not accepted
  Rubus riograndis L.H. Bailey -- not accepted -- Rio Grande dewberry
  Rubus rixosus L.H. Bailey -- not accepted -- harsh dewberry
  Rubus roezlii Regel -- not accepted
  Rubus roribaccus (L.H. Bailey) Rydb. -- not accepted -- Lucretia dewberry
  Rubus rosa L.H. Bailey -- not accepted -- rose blackberry
  Rubus rosaefolius Sm. -- not accepted
  Rubus rosagnetis L.H. Bailey -- not accepted
  Rubus rosarius L.H. Bailey -- not accepted -- James River blackberry
  Rubus rosendahlii L.H. Bailey -- not accepted
  Rubus rosifolius Sm. -- accepted -- ola'a, roseleaf raspberry, thimbleberry, West Indian raspberry
  Rubus rossbergianus Blanch. -- not accepted -- Connecticut blackberry
  Rubus rotundior (L.H. Bailey) L.H. Bailey -- not accepted
  Rubus rowleei L.H. Bailey -- not accepted
  Rubus rubrisetus Rydb. -- not accepted
  Rubus rudis Weihe -- accepted
  Rubus russeus L.H. Bailey -- not accepted -- Halifax blackberry
  Rubus rydbergianus L.H. Bailey -- not accepted -- Rydberg's blackberry
  Rubus saepescandens L.H. Bailey -- not accepted
  Rubus sailori L.H. Bailey -- not accepted
  Rubus saltuensis L.H. Bailey -- not accepted -- Tolland County blackberry
  Rubus sanfordii L.H. Bailey -- not accepted
  Rubus satis L.H. Bailey -- not accepted
  Rubus sativus Brainerd -- not accepted
  Rubus saxatilis L. -- accepted -- Greenland thornless blackberry
  Rubus saxatilis var. americanus Pers. -- not accepted
  Rubus saxatilis var. canadensis Michx. -- not accepted
  Rubus scambens L.H. Bailey -- not accepted -- springtime dewberry
  Rubus sceleratus Brainerd ex Fernald -- not accepted -- Androscoggin River blackberry
  Rubus schneckii L.H. Bailey -- not accepted
  Rubus schneideri L.H. Bailey -- not accepted
  Rubus schoolcraftianus L.H. Bailey -- not accepted -- Schoolcraft's dewberry
  Rubus scibilis L.H. Bailey -- not accepted
  Rubus segnis L.H. Bailey -- not accepted -- Nova Scotia dewberry
  Rubus sejunctus L.H. Bailey -- not accepted
  Rubus semierectus Blanch. -- not accepted
  Rubus semisetosus Blanch. -- not accepted -- swamp blackberry
  Rubus semisetosus var. wheeleri L.H. Bailey -- not accepted
  Rubus sempervirens Bigelow -- not accepted
  Rubus senilis L.H. Bailey -- not accepted
  Rubus separ L.H. Bailey -- not accepted
  Rubus serenus L.H. Bailey -- not accepted
  Rubus serissimus L.H. Bailey -- not accepted
  Rubus sertatus L.H. Bailey -- not accepted
  Rubus setosissimus Focke -- not accepted
  Rubus setospinosus L.H. Bailey -- not accepted
  Rubus setosus Bigelow -- accepted -- setose blackberry
  Rubus severus Brainerd ex Fernald -- not accepted -- harsh dewberry
  Rubus sewardianus Fernald -- not accepted -- Seward's blackberry
  Rubus sharpii L.H. Bailey -- not accepted
  Rubus sieboldii Blume -- accepted -- Molucca raspberry, palmleaf dewberry
  Rubus signatus L.H. Bailey -- not accepted -- sphagnum dewberry
  Rubus significans L.H. Bailey -- not accepted
  Rubus singulus L.H. Bailey -- not accepted
  Rubus sirbenus L.H. Bailey -- not accepted
  Rubus sons L.H. Bailey -- not accepted -- New Orleans dewberry
  Rubus spectabilis Pursh -- accepted -- salmonberry
  Rubus spectabilis var. franciscanus (Rydb.) J.T. Howell -- not accepted -- salmonberry
  Rubus spectabilis var. menziesii (Hook.) S. Watson -- not accepted
  Rubus spectabilis var. spectabilis Pursh -- not accepted -- salmonberry
  Rubus spectatus L.H. Bailey -- not accepted -- sphagnum blackberry
  Rubus spiculosus Fernald -- not accepted -- domeshape dewberry
  Rubus steelei L.H. Bailey -- not accepted -- Steele's dewberry
  Rubus stellatus Sm. -- not accepted
  Rubus stenopetalus Cham. -- not accepted
  Rubus stipulatus L.H. Bailey -- not accepted -- Big Horseshoe Lake dewberry
  Rubus strigosus Michx. -- not accepted
  Rubus strigosus var. acalyphaceus (Greene) L.H. Bailey -- not accepted
  Rubus strigosus var. albus Fuller ex L.H. Bailey -- not accepted
  Rubus strigosus var. arizonicus (Greene) Kearney & Peebles -- not accepted
  Rubus strigosus var. canadensis (Richardson) House -- not accepted
  Rubus strigosus var. caudatus B.L. Rob. & H. Schrenk -- not accepted
  Rubus strigosus var. tonsus (Fernald) L.H. Bailey -- not accepted
  Rubus subarcticus (Greene) Rydb. -- not accepted
  Rubus subinnoxius Fernald -- not accepted
  Rubus subsolanus L.H. Bailey -- not accepted
  Rubus subtentus L.H. Bailey -- not accepted
  Rubus subtractus L.H. Bailey -- not accepted
  Rubus subuniflorus Rydb. -- not accepted
  Rubus summotus L.H. Bailey -- not accepted
  Rubus superioris L.H. Bailey -- not accepted
  Rubus suppar L.H. Bailey -- accepted -- New Glasgow dewberry
  Rubus suus L.H. Bailey -- not accepted -- branched blackberry
  Rubus tallahasseanus L.H. Bailey -- not accepted
  Rubus tantulus L.H. Bailey -- not accepted
  Rubus tardatus Blanch. -- not accepted -- wet thicket dewberry
  Rubus tectus L.H. Bailey -- not accepted
  Rubus temerarius L.H. Bailey -- not accepted
  Rubus tennesseeanus L.H. Bailey -- not accepted
  Rubus tenuicaulis L.H. Bailey -- not accepted
  Rubus terraltanus L.H. Bailey -- not accepted
  Rubus tetricus L.H. Bailey -- not accepted
  Rubus texanus L.H. Bailey -- not accepted
  Rubus tholiformis Fernald -- not accepted -- domeshape dewberry
  Rubus thyrsoides Wimm. -- accepted -- Great Britain blackberry
  Rubus titanus L.H. Bailey -- not accepted
  Rubus tomentosus Borkh. -- not accepted -- blackcherry, woolly blackberry
  Rubus tomentosus var. canescens Wirtg. -- not accepted -- woolly blackberry
  Rubus tomentosus var. tomentosus Borkh. -- not accepted -- woolly blackberry
  Rubus tracyi L.H. Bailey -- not accepted
  Rubus transmontanus Focke -- not accepted
  Rubus triflorus Richardson -- not accepted
  Rubus trifrons Blanch. -- not accepted -- threeleaflet dewberry
  Rubus trifrons var. pudens (L.H. Bailey) Fernald -- not accepted
  Rubus trinitatis (A. Berger) L.H. Bailey -- not accepted
  Rubus triphyllus Thunb. -- not accepted -- threeleaf blackberry
  Rubus trivialis Michx. -- accepted -- southern dewberry
  Rubus trivialis var. duplaris (Shinners) Mahler -- not accepted
  Rubus trivialis var. serosus L.H. Bailey -- not accepted
  Rubus trux Ashe -- not accepted -- Lookout Mountain blackberry
  Rubus tumularis L.H. Bailey -- not accepted
  Rubus tygartensis H.A. Davis & T. Davis -- not accepted -- Taylor County blackberry
  Rubus uber L.H. Bailey -- not accepted
  Rubus ucetanus L.H. Bailey -- not accepted -- Hillsborough blackberry
  Rubus udus L.H. Bailey -- not accepted
  Rubus uliginosus Fernald -- not accepted
  Rubus ulmifolis Schott -- not accepted
  Rubus ulmifolius Schott -- accepted -- elmleaf blackberry
  Rubus ulmifolius var. anoplothyrsus Sudre -- not accepted
  Rubus ulmifolius var. inermis (Willd.) Focke -- not accepted -- elmleaf blackberry
  Rubus ulmifolius var. ulmifolius Schott -- not accepted -- elmleaf blackberry
  Rubus ulterior L.H. Bailey -- not accepted
  Rubus unanimus L.H. Bailey -- not accepted
  Rubus uncus L.H. Bailey -- not accepted
  Rubus uniflorifer L.H. Bailey -- not accepted
  Rubus uniformis L.H. Bailey -- not accepted -- thornless dewberry
  Rubus uniquus L.H. Bailey -- not accepted
  Rubus univocus L.H. Bailey -- not accepted
  Rubus urbanianus L.H. Bailey -- not accepted
  Rubus ursinus Cham. & Schltdl. -- accepted -- California blackberry
  Rubus ursinus ssp. macropetalus (Douglas ex Hook.) Roy L. Taylor & MacBryde -- not accepted -- California blackberry
  Rubus ursinus ssp. ursinus Cham. & Schltdl. -- not accepted -- California blackberry
  Rubus ursinus ssp. ursinus var. sirbenus (L.H. Bailey) J.T. Howell -- not accepted -- California blackberry
  Rubus ursinus ssp. ursinus var. ursinus Cham. & Schltdl. -- not accepted -- California blackberry
  Rubus ursinus var. eastwoodianus (Rydb.) J.T. Howell -- not accepted
  Rubus ursinus var. loganobaccus (L.H. Bailey) L.H. Bailey -- not accepted
  Rubus ursinus var. macropetalus (Douglas ex Hook.) S.W. Br. -- not accepted
  Rubus ursinus var. medusae S.W. Br. -- not accepted
  Rubus ursinus var. pentaphyllus S.W. Br. -- not accepted
  Rubus ursinus var. sirbenus (L.H. Bailey) J.T. Howell -- not accepted -- California blackberry
  Rubus ursinus var. ursinus Cham. & Schltdl. -- not accepted -- California blackberry
  Rubus ursinus var. ursinus Cham. & Schltdl. -- not accepted
  Rubus ursinus var. vitifolius (Cham. & Schltdl.) Focke -- not accepted
  Rubus usus L.H. Bailey -- not accepted
  Rubus uvidus L.H. Bailey -- not accepted -- Kalamazoo dewberry
  Rubus vagulus L.H. Bailey -- not accepted
  Rubus vagus L.H. Bailey -- accepted -- rambling dewberry
  Rubus valentulus L.H. Bailey -- not accepted
  Rubus variispinus L.H. Bailey -- not accepted -- Vicksburg blackberry
  Rubus varus L.H. Bailey -- not accepted
  Rubus vegrandis L.H. Bailey -- not accepted
  Rubus velox L.H. Bailey -- accepted -- fuzzy dewberry
  Rubus vermontanus Blanch. -- not accepted -- Vermont blackberry
  Rubus vermontanus var. ortivus (L.H. Bailey) B. Boivin -- not accepted
  Rubus vermontanus var. viridiflorus Blanch. -- not accepted
  Rubus vestitus Weihe -- accepted -- European blackberry
  Rubus viburnifolius (Greene) Rydb. -- not accepted
  Rubus victorinii L.H. Bailey -- not accepted
  Rubus vigil L.H. Bailey -- not accepted -- Missouri blackberry
  Rubus vigoratus L.H. Bailey -- not accepted -- Essex dewberry
  Rubus villosus Aiton -- not accepted
  Rubus villosus var. montanus Porter -- not accepted
  Rubus virginianus L.H. Bailey -- not accepted
  Rubus viridifrons L.H. Bailey -- not accepted
  Rubus virilis L.H. Bailey -- not accepted
  Rubus vitifolius Cham. & Schltdl. -- not accepted -- Pacific dewberry
  Rubus vitifolius ssp. ursinus (Cham. & Schltdl.) Abrams -- not accepted
  Rubus vitifolius var. eastwoodianus (Rydb.) Munz -- not accepted -- Pacific dewberry
  Rubus vitifolius var. titanus (L.H. Bailey) L.H. Bailey -- not accepted -- Pacific dewberry
  Rubus vitifolius var. vitifolius Cham. & Schltdl. -- not accepted -- Pacific dewberry
  Rubus vixalacer L.H. Bailey -- not accepted
  Rubus vixargutus L.H. Bailey -- not accepted
  Rubus vulgaris Weihe & Nees -- accepted
  Rubus wahlii L.H. Bailey -- not accepted
  Rubus weatherbyi L.H. Bailey -- not accepted -- Bay of Fundy dewberry
  Rubus whartoniae L.H. Bailey -- not accepted -- Wharton's dewberry
  Rubus wheeleri (L.H. Bailey) L.H. Bailey -- not accepted -- Wheeler's blackberry
  Rubus wiegandii L.H. Bailey -- not accepted
  Rubus wisconsinensis L.H. Bailey -- not accepted -- Wisconsin blackberry
  Rubus X abbrevians Blanch. (pro sp.) -- accepted
  Rubus X acer L.H. Bailey (pro sp.) -- accepted
  Rubus X acer var. subacer L.H. Bailey -- accepted
  Rubus X aculifer Fernald (pro sp.) -- accepted -- thorny dewberry
  Rubus X adenocaulis Fernald (pro sp.) -- accepted
  Rubus X adjacens Fernald (pro sp.) -- accepted -- peaty dewberry
  Rubus X akermanii Fernald (pro sp.) -- accepted
  Rubus X alter L.H. Bailey (pro sp.) -- accepted -- Maine dewberry
  Rubus X amabilis Blanch. (pro sp.) -- accepted
  Rubus X ambigens Fernald (pro sp.) -- accepted
  Rubus X amicalis Blanch. (pro sp.) -- accepted
  Rubus X angustifoliatus L.H. Bailey (pro sp.) -- accepted
  Rubus X arcuans Fernald & H. St. John (pro sp.) -- accepted -- wand dewberry
  Rubus X argutinus L.H. Bailey (pro sp.) -- accepted
  Rubus X ascendens Blanch. (pro sp.) -- accepted
  Rubus X atwoodii L.H. Bailey (pro sp.) -- accepted
  Rubus X avipes L.H. Bailey (pro sp.) -- accepted
  Rubus X biformispinus Blanch. (pro sp.) -- accepted -- pasture dewberry
  Rubus X bigelovianus L.H. Bailey (pro sp.) -- accepted -- lowland blackberry
  Rubus X boyntonii Ashe (pro sp.) -- accepted -- Boynton's dewberry
  Rubus X bracteolifer Fernald (pro sp.) -- accepted
  Rubus X clausenii L.H. Bailey (pro sp.) -- accepted
  Rubus X darlingtonii L.H. Bailey (pro sp.) -- accepted
  Rubus X distinctus L.H. Bailey (pro sp.) -- accepted
  Rubus X elegantulus Blanch. (pro sp.) -- accepted -- showy blackberry
  Rubus X elongatus Brainerd & Peitersen -- accepted
  Rubus X emeritus L.H. Bailey (pro sp.) -- accepted
  Rubus X flavinanus Blanch. (pro sp.) -- accepted -- Windham County blackberry
  Rubus X floricomus Blanch. (pro sp.) -- accepted -- manyflower blackberry
  Rubus X floridensis L.H. Bailey (pro sp.) -- accepted
  Rubus X forestalis L.H. Bailey (pro sp.) -- accepted
  Rubus X fraseri Rehder -- accepted -- Fraser's blackberry
  Rubus X fraternalis L.H. Bailey (pro sp.) -- accepted -- northeastern dewberry
  Rubus X frondisentis Blanch. (pro sp.) -- accepted -- leafy blackberry
  Rubus X furtivus L.H. Bailey (pro sp.) -- accepted -- openground dewberry
  Rubus X gnarus L.H. Bailey (pro sp.) -- accepted -- Pollock's Mill blackberry
  Rubus X grandidens L.H. Bailey (pro sp.) -- accepted
  Rubus X harmonicus L.H. Bailey (pro sp.) -- accepted -- Kennebunkport dewberry
  Rubus X hypolasius Fernald (pro sp.) -- accepted -- pineland dewberry
  Rubus X immanis Ashe (pro sp.) -- accepted -- Watauga River blackberry
  Rubus X inferior L.H. Bailey (pro sp.) -- accepted -- Ocala blackberry
  Rubus X jacens Blanch. (pro sp.) -- accepted -- spreading dewberry
  Rubus X jacens var. specialis L.H. Bailey -- accepted -- harsh dewberry
  Rubus X janssonii L.H. Bailey (pro sp.) -- accepted
  Rubus X kalamazoensis L.H. Bailey (pro sp.) -- accepted
  Rubus X laevior (L.H. Bailey) Fernald (pro sp.) -- accepted
  Rubus X largus L.H. Bailey (pro sp.) -- accepted -- oakwoods dewberry
  Rubus X lepagei L.H. Bailey (pro sp.) -- accepted
  Rubus X licens L.H. Bailey (pro sp.) -- accepted
  Rubus X miscix L.H. Bailey (pro sp.) -- accepted
  Rubus X multiformis Blanch. (pro sp.) -- accepted -- variable blackberry
  Rubus X multilicius L.H. Bailey (pro sp.) -- accepted
  Rubus X neglectus Peck (pro sp.) -- accepted
  Rubus X novanglicus L.H. Bailey (pro sp.) -- accepted -- New England dewberry
  Rubus X noveboracus L.H. Bailey (pro sp.) -- accepted -- New York blackberry
  Rubus X orarius Blanch. (pro sp.) -- accepted
  Rubus X ostryifolius Rydb. (pro sp.) -- accepted -- highbush blackberry
  Rubus X paracaulis L.H. Bailey (pro sp.) -- accepted -- blackberry
  Rubus X parlinii L.H. Bailey (pro sp.) -- accepted -- Parlin's dewberry
  Rubus X pergratus Blanch. (pro sp.) -- accepted -- upland blackberry
  Rubus X permixtus Blanch. (pro sp.) -- accepted -- thicket dewberry
  Rubus X ravus L.H. Bailey (pro sp.) -- accepted -- leafy blackberry
  Rubus X recurvicaulis Blanch. (pro sp.) -- accepted -- arching dewberry
  Rubus X rixosus L.H. Bailey (pro sp.) -- accepted -- harsh dewberry
  Rubus X rosendahlii L.H. Bailey (pro sp.) -- accepted
  Rubus X segnis L.H. Bailey (pro sp.) -- accepted -- Nova Scotia dewberry
  Rubus X setospinosus L.H. Bailey (pro sp.) -- accepted
  Rubus X severus Brainerd ex Fernald (pro sp.) -- accepted -- harsh dewberry
  Rubus X spiculosus Fernald (pro sp.) -- accepted -- domeshape dewberry
  Rubus X tardatus Blanch. (pro sp.) -- accepted -- wet thicket dewberry
  Rubus X tholiformis Fernald (pro sp.) -- accepted -- domeshape dewberry
  Rubus X trifrons Blanch. (pro sp.) -- accepted -- threeleaflet dewberry
  Rubus X varus L.H. Bailey (pro sp.) -- accepted
  Rubus X vigoratus L.H. Bailey (pro sp.) -- accepted -- Essex dewberry
  Rubus X zaplutus L.H. Bailey (pro sp.) -- accepted
  Rubus xanthocarpus Bureau & Franch. -- accepted
  Rubus zaplutus L.H. Bailey -- not accepted
  Rubus zoae L.H. Bailey -- not accepted
  Sanguisorba L. -- accepted -- burnet
  Sanguisorba agrimonoides Ces. -- not accepted
  Sanguisorba albanica András. & Jáv. -- accepted
  Sanguisorba annua (Nutt.) Nutt. -- not accepted -- prairie burnet
  Sanguisorba canadensis L. -- accepted -- Canadian burnet
  Sanguisorba canadensis ssp. latifolia (Hook.) Calder & Roy L. Taylor -- not accepted
  Sanguisorba canadensis var. latifolia Hook. -- not accepted
  Sanguisorba canadensis var. sitchensis (C.A. Mey.) Koidz. -- not accepted
  Sanguisorba hybrida (L.) Nordborg -- accepted
  Sanguisorba menziesii Rydb. -- accepted -- Menzies' burnet
  Sanguisorba microcephala C. Presl -- not accepted
  Sanguisorba minor Scop. -- accepted -- salad burnet, small burnet
  Sanguisorba minor ssp. balearica (Bourg. ex Nyman) M. Garm. & C. Navarro -- not accepted -- small burnet
  Sanguisorba minor ssp. magnolii (Spach) Briq. -- accepted
  Sanguisorba minor ssp. muricata (Spach ex Bonnier & Layens) Briq. -- accepted -- small burnet
  Sanguisorba minor var. minor Scop. -- not accepted
  Sanguisorba occidentalis Nutt. -- not accepted -- western burnet
  Sanguisorba officinalis L. -- accepted -- official burnet
  Sanguisorba officinalis ssp. microcephala (C. Presl) Calder & Roy L. Taylor -- not accepted
  Sanguisorba officinalis var. polygama (F. Nyl.) Mela & A. Caj. -- not accepted
  Sanguisorba sitchensis C.A. Mey. -- not accepted
  Sanguisorba stipulata Raf. -- accepted -- Sitka burnet
  Sanguisorba tenuifolia Fisch. ex Link -- accepted
  Sanguisorba tenuifolia var. alba Trautv. & C.A. Mey. -- not accepted
  Saxifraga pectinata Pursh -- not accepted
  Schizonotus sorbifolius (L.) Lindl. -- not accepted
  Selnorition Raf. -- not accepted
  Sericotheca discolor (Pursh) Rydb. -- not accepted
  Sericotheca franciscana Rydb. -- not accepted
  Sericotheca obovata Rydb. -- not accepted
  Sericotheca pachydisca Rydb. -- not accepted
  Sericotheca schaffneri Rydb. -- not accepted
  Sibbaldia L. -- accepted
  Sibbaldia erecta L. -- not accepted
  Sibbaldia procumbens L. -- accepted -- creeping sibbaldia, creeping-glow-wort, prostrate sibbaldia
  Sibbaldiopsis Rydb. -- accepted
  Sibbaldiopsis tridentata (Aiton) Rydb. -- accepted -- shrubby fivefingers, shrubby-fivefingers
  Sieversia Willd. -- accepted
  Sieversia campanulata (Greene) Rydb. -- not accepted
  Sieversia canescens (Greene) Rydb. -- not accepted
  Sieversia ciliata (Pursh) G. Don -- not accepted
  Sieversia glacialis (Adams ex Fisch. & C.A. Mey.) R. Br. -- not accepted
  Sieversia gracilipes (Piper) Greene -- not accepted
  Sieversia paradoxa D. Don -- not accepted
  Sieversia peckii (Pursh) Rydb. -- not accepted
  Sieversia pentapetala (L.) Greene -- accepted
  Sieversia radiata (Michx.) G. Don -- not accepted
  Sieversia rossii R. Br. -- not accepted
  Sieversia triflora (Pursh) R. Br. -- not accepted
  Sieversia X macrantha Kearney -- not accepted
  Sorbaria (Ser.) A. Braun -- accepted -- false spiraea
  Sorbaria arborea C.K. Schneid. -- not accepted -- giant false spiraea
  Sorbaria kirilowii (Regel & Tiling) Maxim. -- accepted -- giant false spiraea
  Sorbaria sorbifolia (L.) A. Braun -- accepted -- false spiraea
  Sorbaria sorbifolia var. stellipila Maxim. -- not accepted
  Sorbaria stellipila (Maxim.) C.K. Schneid. -- not accepted
  Sorbaria tomentosa (Lindl.) Rehder -- accepted
  Sorbus L. -- accepted -- mountain-ash
  Sorbus alnifolia (Siebold & Zucc.) K. Koch -- accepted
  Sorbus alpina (Willd.) Heynh. -- not accepted
  Sorbus americana Marshall -- accepted -- American mountain-ash
  Sorbus americana var. groenlandica (Sarg.) Sarg. -- not accepted
  Sorbus americanus var. sitchensis (M. Roem.) Sudw. -- not accepted
  Sorbus amurensis Koehne -- not accepted
  Sorbus andersonii G.N. Jones -- not accepted
  Sorbus angustifolia Rydb. -- not accepted
  Sorbus arbutifolia (L.) Heynh. -- not accepted
  Sorbus arbutifolia var. atropurpurea (Britton) C.K. Schneid. -- not accepted
  Sorbus aria (L.) Crantz -- accepted -- chess-apple, whitebeam
  Sorbus aucuparia L. -- accepted -- European mountain-ash, rowan, rowan-berry
  Sorbus aucuparia var. xanthocarpa Hartwig & Rümpler -- not accepted
  Sorbus californica Greene -- accepted -- California mountain-ash
  Sorbus cascadensis G.N. Jones -- not accepted
  Sorbus commixta Hedl. -- accepted
  Sorbus decora (Sarg.) C.K. Schneid. -- accepted -- northern mountain-ash
  Sorbus decora var. groenlandica (C.K. Schneid.) G.N. Jones -- not accepted
  Sorbus domestica L. -- accepted -- servicetree
  Sorbus dumosa Greene -- not accepted -- Arizona mountain-ash
  Sorbus groenlandica (C.K. Schneid.) Á. Löve & D. Löve -- not accepted -- Greenland mountain-ash
  Sorbus hybrida L. -- accepted -- oakleaf mountain-ash
  Sorbus intermedia (Ehrh.) Pers. -- accepted -- Swedish whitebeam
  Sorbus melanocarpa (Michx.) Heynh. -- not accepted
  Sorbus micrantha Dum. Cours. -- not accepted
  Sorbus microcarpa Pursh -- not accepted
  Sorbus occidentalis (S. Watson) Greene -- not accepted
  Sorbus pinnatifida (Ehrh.) Bean -- not accepted
  Sorbus pohuashanensis (Hance) Hedl. -- not accepted
  Sorbus pumilus Raf. -- not accepted
  Sorbus riparia Raf. -- not accepted
  Sorbus sambucifolia (Cham. & Schltdl.) M. Roem. -- accepted -- Siberian mountain-ash
  Sorbus sambucifolia var. grayi Wenz. -- not accepted
  Sorbus sambucifolia var. pumila (Raf.) Koehne -- not accepted
  Sorbus sargentii Dippel -- not accepted
  Sorbus scopulina Greene -- accepted -- Cascade mountain-ash, Greene's mountain-ash
  Sorbus scopulina var. cascadensis (G.N. Jones) C.L. Hitchc. -- not accepted -- Cascade mountain-ash
  Sorbus scopulina var. scopulina Greene -- not accepted -- Cascade mountain-ash, Greene's mountain-ash
  Sorbus sibirica Hedl. -- not accepted
  Sorbus sitchensis M. Roem. -- accepted -- western mountain-ash
  Sorbus sitchensis ssp. californica (Greene) Abrams -- not accepted
  Sorbus sitchensis ssp. grayi (Wenzig) Calder & Roy L. Taylor -- not accepted
  Sorbus sitchensis var. grayi (Wenzig) C.L. Hitchc. -- accepted -- western mountain-ash
  Sorbus sitchensis var. sitchensis M. Roem. -- accepted -- Sitka mountain-ash
  Sorbus sorbifolia (Poir.) Hedl. -- not accepted
  Sorbus spuria Pers. -- not accepted
  Sorbus tianschanica Rupr. -- accepted
  Sorbus tilingii Gand. -- not accepted
  Sorbus toringo K. Koch -- not accepted
  Sorbus torminalis (L.) Crantz -- accepted -- checkertree, chequers, wild servicetree
  Sorbus X alpina (Willd.) Heynh. (pro sp.) -- not accepted
  Sorbus X thuringiaca (Ilse) Fritsch -- accepted -- mountain-ash
  Spiraea L. -- accepted
  Spiraea alba Du Roi -- accepted -- spirea, white meadowsweet
  Spiraea alba var. alba Du Roi -- accepted -- white meadowsweet
  Spiraea alba var. latifolia (Aiton) H.E. Ahles -- accepted -- white meadowsweet
  Spiraea alba var. septentrionalis (Fernald) Seymour -- not accepted
  Spiraea albiflora (Miq.) Zabel -- accepted
  Spiraea arbuscula Greene -- not accepted
  Spiraea aruncus L. -- not accepted
  Spiraea beauverdiana auct. non C.K. Schneid. -- not accepted
  Spiraea beauverdiana var. stevenii C.K. Schneid. -- not accepted
  Spiraea betulifolia Pall. -- accepted -- white spirea
  Spiraea betulifolia ssp. corymbosa (Raf.) Roy L. Taylor & MacBryde -- not accepted
  Spiraea betulifolia ssp. lucida (Douglas ex Greene) Roy L. Taylor & MacBryde -- not accepted
  Spiraea betulifolia var. corymbosa (Raf.) Maxim. -- accepted -- shinyleaf meadowsweet
  Spiraea betulifolia var. lucida (Douglas ex Greene) C.L. Hitchc. -- accepted -- shinyleaf spirea
  Spiraea betulifolia var. rosea A. Gray -- not accepted
  Spiraea bullata Maxim. -- not accepted
  Spiraea caespitosa Nutt. -- not accepted
  Spiraea caespitosa var. elatior S. Watson -- not accepted
  Spiraea californica Torr. -- not accepted
  Spiraea camtschatica var. occidentalis (S. Watson) Wenz. -- not accepted
  Spiraea cantoniensis Lour. -- accepted -- Reeves' meadowsweet
  Spiraea capitata Pursh -- not accepted
  Spiraea chamaedryfolia L. -- accepted -- Germander meadowsweet
  Spiraea chamaedryfolia var. chamaedryfolia L. -- accepted -- Germander meadowsweet
  Spiraea chamaedryfolia var. ulmifolia (Scop.) Maxim. -- accepted -- Germander meadowsweet
  Spiraea cinerascens Piper -- not accepted
  Spiraea corymbosa Raf. -- not accepted
  Spiraea densiflora Nutt. ex Greenm. -- not accepted
  Spiraea densiflora ssp. splendens (Baumann ex K. Koch) Abrams -- not accepted
  Spiraea densiflora var. splendens (Baumann ex K. Koch) C.L. Hitchc. -- not accepted
  Spiraea denudata J. Presl & C. Presl -- not accepted
  Spiraea discolor Pursh -- not accepted
  Spiraea discolor var. glabrescens Greenm. -- not accepted
  Spiraea douglasii Hook. -- accepted -- rose spirea
  Spiraea douglasii ssp. menziesii (Hook.) Calder & Roy L. Taylor -- not accepted
  Spiraea douglasii var. douglasii Hook. -- accepted -- rose spirea
  Spiraea douglasii var. menziesii (Hook.) C. Presl -- accepted -- Menzies' spirea
  Spiraea douglasii var. roseata (Rydb.) C.L. Hitchc. -- not accepted
  Spiraea dumosa Nutt. ex Hook. -- not accepted
  Spiraea filipendula L. -- not accepted
  Spiraea flexuosa Fisch. ex Cambess. -- accepted
  Spiraea gemmata Zabel -- accepted
  Spiraea hendersonii (Canby) Piper -- not accepted
  Spiraea hypericifolia L. -- accepted -- Iberian spirea
  Spiraea incisa Thunb. -- not accepted -- laceshrub
  Spiraea japonica L. f. -- accepted -- Japanese meadowsweet, Japanese spiraea
  Spiraea japonica var. alpina Maxim. -- not accepted
  Spiraea japonica var. bullata (Maxim.) Makino -- accepted
  Spiraea japonica var. fortunei (Planch.) Rehder -- accepted -- fortune meadowsweet
  Spiraea kirilowii Regel -- not accepted -- giant false spiraea
  Spiraea latifolia (Aiton) Borkh. -- not accepted
  Spiraea latifolia var. septentrionalis Fernald -- not accepted
  Spiraea lucida Douglas ex Greene -- not accepted
  Spiraea media Schmidt -- accepted
  Spiraea menziesii Hook. -- not accepted
  Spiraea millefolium Torr. -- not accepted
  Spiraea monogyna Torr. -- not accepted
  Spiraea nipponica Maxim. -- accepted
  Spiraea nipponica f. rotundifolia (G. Nicholson) Makino -- accepted
  Spiraea occidentalis S. Watson -- not accepted
  Spiraea opulifolia L. -- not accepted
  Spiraea pectinata (Pursh) Torr. & A. Gray -- not accepted
  Spiraea prunifolia Siebold & Zucc. -- accepted -- bridalwreath spirea
  Spiraea prunifolia var. plena C.K. Schneid. -- not accepted
  Spiraea rubra (Hill) Britton -- not accepted
  Spiraea salicifolia L. -- accepted -- willowleaf meadowsweet
  Spiraea sargentiana Rehder -- accepted
  Spiraea septentrionalis (Fernald) Á. Löve & D. Löve -- accepted -- northern meadowsweet
  Spiraea sorbifolia L. -- not accepted
  Spiraea splendens Baumann ex K. Koch -- accepted -- rose meadowsweet
  Spiraea splendens var. rosea (A. Gray) Kartesz & Gandhi -- accepted -- rose meadowsweet
  Spiraea splendens var. splendens Baumann ex K. Koch -- accepted -- rose meadowsweet, Sierra spirea
  Spiraea stevenii (C.K. Schneid.) Rydb. -- accepted -- beauverd spirea
  Spiraea stipulata Muhl. ex Willd. -- not accepted
  Spiraea subvillosa Rydb. -- not accepted
  Spiraea thunbergii Siebold ex Blume -- accepted -- Thunberg's meadowsweet
  Spiraea tomentosa L. -- accepted -- steeplebush
  Spiraea tomentosa var. rosea (Raf.) Fernald -- not accepted -- steeplebush
  Spiraea tomentosa var. tomentosa L. -- not accepted -- steeplebush
  Spiraea tomentulosa Rydb. -- not accepted
  Spiraea trichocarpa Nakai -- accepted
  Spiraea trifoliata L. -- not accepted
  Spiraea trilobata L. -- accepted -- Asian meadowsweet
  Spiraea ulmaria L. -- not accepted
  Spiraea vanhouttei (Briot) Carrière -- accepted -- Van Houtt's spirea
  Spiraea virginiana Britton -- accepted -- Virginia meadowsweet, Virginia spiraea
  Spiraea virginiana var. serrulata Rehder -- not accepted
  Spiraea virginiana var. virginiana Britton -- not accepted -- Virginia meadowsweet
  Spiraea wilsonii Duthie ex J.H. Veitch -- accepted
  Spiraea X arguta Zabel -- accepted -- garland spiraea
  Spiraea X billiardii Hérincq (pro sp.) -- accepted -- Billiard's spirea
  Spiraea X bumalda Burven -- accepted -- Japanese spiraea
  Spiraea X hitchcockii W.J. Hess & Stoynoff -- accepted
  Spiraea X pyramidata Greene (pro sp.) -- accepted -- pyramid spirea
  Spiraea X subcanescens Rydb. (pro sp.) -- accepted -- spirea
  Spiraeanthus Maxim. -- accepted -- false spirea
  Spiraeanthus cordifolia Kunth -- not accepted
  Sportella atalantioides Hance -- not accepted
  Stellariopsis santolinoides (A. Gray) Rydb. -- not accepted
  Stephanandra Siebold & Zucc. -- not accepted
  Stephanandra incisa (Thunb.) Zabel -- not accepted
  Stranvaesia Lindl. -- accepted
  Stranvaesia davidiana Decne. -- accepted -- Chinese photinia, Chinese stranvaesia
  Stranvaesia davidiana var. davidiana Decne. -- accepted -- Chinese photinia, Chinese stranvaesia
  Stranvaesia niitakayamensis (Hayata) Hayata -- not accepted
  Stylypus vernus Raf. -- not accepted
  Thecanisia angustifolia Raf. -- not accepted
  Thecanisia discolor Raf. -- not accepted
  Thecanisia lobata (Gronov. ex Jacq.) Raf. -- not accepted
  Thecanisia purpurea Raf. -- not accepted
  Thecanisia ulmaria (L.) Raf. -- not accepted
  Tigarea tridentata Pursh -- not accepted
  Torminaria clusii M. Roem. -- not accepted
  Torminaria torminalis (L.) Dippel -- not accepted
  Ulmaria rubra Hill -- not accepted
  Vanquelinia Corrêa ex Bonpl. -- not accepted
  Vanquelinia angustifolia Rydb. -- not accepted
  Vanquelinia californica (Torr.) Sarg. -- not accepted
  Vauquelinia Corrêa ex Bonpl. -- accepted -- rosewood
  Vauquelinia angustifolia Rydb. -- not accepted
  Vauquelinia californica (Torr.) Sarg. -- accepted -- Arizona rosewood
  Vauquelinia californica ssp. californica (Torr.) Sarg. -- accepted -- Arizona rosewood, California rosewood
  Vauquelinia californica ssp. pauciflora (Standl.) W.J. Hess & Henrickson -- accepted -- Arizona rosewood, limestone rosewood
  Vauquelinia californica ssp. sonorensis W.J. Hess & Henrickson -- accepted -- Arizona rosewood, Sonora rosewood
  Vauquelinia corymbosa Bonpl. -- accepted -- slimleaf rosewood
  Vauquelinia corymbosa ssp. angustifolia (Rydb.) W.J. Hess & Henrickson -- accepted -- slimleaf rosewood
  Vauquelinia pauciflora Standl. -- not accepted
  Waldsteinia Willd. -- accepted -- barren strawberry
  Waldsteinia doniana Tratt. -- not accepted
  Waldsteinia fragarioides (Michx.) Tratt. -- accepted -- Appalachian barren strawberry
  Waldsteinia fragarioides ssp. doniana (Tratt.) Teppner -- not accepted -- Appalachian barren strawberry
  Waldsteinia fragarioides ssp. fragarioides (Michx.) Tratt. -- not accepted -- Appalachian barren strawberry
  Waldsteinia fragarioides var. parviflora (Small) Fernald -- not accepted
  Waldsteinia idahoensis Piper -- accepted -- Idaho barren strawberry
  Waldsteinia lobata (Baldwin) Torr. & A. Gray -- accepted -- piedmont barren strawberry
  Waldsteinia parviflora Small -- accepted
  Waldsteinia pendula (Urb.) Mez -- accepted -- nodding barren strawberry
  Waldstenia Willd. -- not accepted
  Waldstenia fragarioides (Michx.) Tratt. -- not accepted
  Waldstenia fragarioides var. fragarioides (Michx.) Tratt. -- not accepted
  Waldstenia idahoensis Piper -- not accepted
  Waldstenia lobata (Baldwin) Torr. & A. Gray -- not accepted
  X Amelasorbus Rehder -- accepted
  X Amelasorbus jackii Rehder -- accepted -- Jack's amelasorbus
  X Sorbaronia C.K. Schneid. -- accepted
  X Sorbaronia alpina (Willd.) C.K. Schneid. -- accepted -- alpine sorbaronia
  X Sorbaronia arsenii (Britton ex L. Arsène) G.N. Jones -- accepted -- Arsen's sorbaronia
  X Sorbaronia fallax (C.K. Schneid.) C.K. Schneid. -- accepted -- sorbaronia
  X Sorbaronia hybrida (Moench) C.K. Schneid. -- accepted -- sorbaronia
  X Sorbaronia jackii Rehder -- accepted -- Jack's sorbaronia
  X Sorbaronia sorbifolia (Poir.) C.K. Schneid. -- accepted -- sorbaronia
   

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