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Taxon author: Standl.

ITIS records citing taxon author "Standl."
 
 Kingdom Plantae
  Abronia acutalata Standl. -- not accepted
  Abronia angustifolia var. arizonica (Standl.) Kearney & Peebles -- not accepted
  Abronia breviflora Standl. -- not accepted
  Abronia exalata Standl. -- not accepted
  Abronia fendleri Standl. -- not accepted
  Abronia glabrifolia Standley -- accepted -- clay sand verbena
  Abronia insularis Standl. -- not accepted -- island sand verbena
  Abronia minor Standl. -- accepted -- little sand verbena
  Abronia nealleyi Standl. -- accepted
  Abronia neurophylla Standl. -- not accepted -- beach sand verbena
  Abronia orbiculata Standl. -- not accepted
  Abronia platyphylla Standl. -- not accepted -- broadleaf sand verbena
  Abronia ramosa Standl. -- not accepted
  Abronia torreyi Standl. -- not accepted
  Abronia umbellata ssp. acutalata (Standl.) Tillett -- not accepted -- pink sand verbena, rose-purple sand-verbena
  Abronia umbellata ssp. breviflora (Standl.) Munz -- not accepted -- pink sand verbena, pink sand-verbena
  Abronia umbellata ssp. platyphylla (Standl.) Munz -- not accepted
  Abronia umbellata ssp. variabilis (Standl.) Munz -- not accepted -- variable pink sand verbena
  Abronia umbellata var. acutalata (Standl.) C.L. Hitchc. -- accepted -- pink sand verbena
  Abronia umbellata var. breviflora (Standl.) L.A. Galloway -- accepted -- pink sand verbena
  Abronia variabilis Standl. -- not accepted
  Abutilon marshii Standl. -- not accepted
  Acacia constricta var. paucispina Wooton & Standl. -- not accepted -- whitethorn, whitethorn acacia
  Acacia constricta var. vernicosa (Standl.) L.D. Benson -- not accepted
  Acacia vernicosa Standl. -- not accepted
  Acer brachypterum Wooton & Standl. -- not accepted
  Acer grandidentatum var. brachypterum (Wooton & Standl.) Palmer -- not accepted
  Acer saccharum ssp. brachypterum (Wooton & Standl.) E. Murray -- not accepted
  Achimenes calderonii Standl. -- not accepted
  Achyranthes bettzichiana (Regel) Standl. -- not accepted
  Achyranthes bettzickiana (Regel) Standl. -- not accepted
  Achyranthes brasiliana (L.) Standl. -- not accepted
  Achyranthes ingramiana Standl. -- not accepted
  Achyranthes leiantha (Seub.) Standl. -- not accepted
  Achyranthes maritima (Mart.) Standl. -- not accepted
  Achyranthes philoxeroides (Mart.) Standl. -- not accepted
  Achyranthes portoricensis (Kuntze) Standl. -- not accepted
  Achyranthes ramosissima (Mart.) Standl. -- not accepted
  Acleisanthes acutifolia Standl. -- accepted -- needletip trumpets
  Acleisanthes greggii Standl. -- not accepted
  Acleisanthes nevadensis (Standl.) B.L. Turner -- accepted -- desert moonpod
  Acleisanthes obtusa (Choisy) Standl. -- accepted -- Berlandier's trumpets
  Acmispon greenei (Wooton & Standl.) Brouillet -- accepted -- Greene's bird's-foot trefoil
  Acnida alabamensis Standl. -- not accepted
  Acnida altissima (Riddell) Moq. ex Standl. -- not accepted
  Acnida subnuda (S. Watson) Standl. -- not accepted
  Agastache cana (Hook.) Wooton & Standl. -- accepted -- mosquito plant
  Agastache greenei (Briq.) Wooton & Standl. -- not accepted
  Agastache mearnsii Wooton & Standl. -- accepted -- San Luis Mountain giant hyssop
  Agastache micrantha (A. Gray) Wooton & Standl. -- accepted -- white giant hyssop
  Agastache neomexicana (Briq.) Standl. -- not accepted
  Agastache pallidiflora ssp. mearnsii (Wooton & Standl.) Lint & Epling -- not accepted
  Agastache pringlei var. verticillata (Wooton & Standl.) R.W. Sanders -- accepted -- Pringle's giant hyssop
  Agastache rupestris (Greene) Standl. -- accepted -- thread-leaf giant hyssop, threadleaf giant hyssop
  Agastache verticillata Wooton & Standl. -- not accepted
  Agastache wrightii (Greenm.) Wooton & Standl. -- accepted -- Sonoran giant hyssop
  Agave neomexicana Wooton & Standl. -- not accepted -- Maguey de Nuevo México
  Agave parryi ssp. neomexicana (Wooton & Standl.) B. Ullrich -- accepted -- New Mexico agave, Parry's agave
  Allionia carletonii Standl. -- not accepted
  Allionia choisyi Standl. -- accepted -- annual windmills
  Allionia ciliata Standl. -- not accepted
  Allionia coahuilensis Standl. -- not accepted
  Allionia cristata (Standl.) Standl. -- not accepted
  Allionia decipiens Standl. -- not accepted
  Allionia exaltata Standl. -- not accepted
  Allionia gausapoides Standl. -- not accepted
  Allionia gigantea Standl. -- not accepted
  Allionia grayana Standl. -- not accepted
  Allionia incarnata var. nudata (Standl.) Munz -- not accepted -- trailing windmills
  Allionia incarnata var. villosa (Standl.) B.L. Turner -- accepted -- trailing windmills
  Allionia melanotricha Standl. -- not accepted
  Allionia pauciflora (Buckley) Standl. -- not accepted
  Allionia pseudaggregata (Heimerl) Standl. -- not accepted
  Allionia pumila Standl. -- not accepted
  Allionia rotata Standl. -- not accepted
  Allium rhizomatum Wooton & Standl. -- accepted
  Aloysia gratissima var. schulziae (Standl.) L.D. Benson -- accepted -- bee blossum, whitebrush
  Aloysia lycioides var. schulziae (Standl.) Moldenke -- not accepted
  Alternanthera ingramiana (Standl.) Schinz -- accepted
  Amaranthus ambigens Standl. -- not accepted
  Amaranthus myrianthus Standl. -- not accepted
  Amaranthus obcordatus (A. Gray) Standl. -- accepted -- Trans-Pecos amaranth
  Amaranthus watsonii Standl. -- accepted -- Watson's amaranth
  Amelanchier australis Standl. -- not accepted
  Amelanchier covillei Standl. -- not accepted
  Amelanchier goldmanii Wooton & Standl. -- not accepted
  Amelanchier utahensis ssp. covillei (Standl.) Clokey -- not accepted -- Coville's serviceberry
  Amelanchier utahensis var. covillei (Standl.) N.H. Holmgren -- not accepted -- Coville's serviceberry
  Ammocodon Standl. -- not accepted
  Ammocodon chenopodioides (A. Gray) Standl. -- not accepted -- goosefoot moonpod
  Amsonia arenaria Standl. -- not accepted
  Amsonia hirtella Standl. -- not accepted
  Andropogon saccharoides var. parvispiculus (Hitchc.) Standl. -- not accepted
  Androsace alaskana Coville & Standl. ex Hultén -- accepted -- Alaskan douglasia
  Androsace alaskana var. alaskana Coville & Standl. ex Hultén -- not accepted -- Alaska rockjasmine
  Androsace glandulosa Wooton & Standl. -- not accepted
  Androsace septentrionalis ssp. glandulosa (Wooton & Standl.) G.T. Robbins -- not accepted -- pygmyflower rockjasmine
  Androsace septentrionalis var. glandulosa (Wooton & Standl.) H. St. John -- not accepted
  Anemone multiceps (Greene) Standl. -- accepted -- Porcupine River thimbleweed
  Antirhea portoricensis (Britton & P. Wilson) Standl. -- not accepted -- Puerto Rico quina, quina
  Anulocaulis Standl. -- accepted -- ringstem
  Anulocaulis annulatus (Coville) Standl. -- accepted -- valley ringstem
  Anulocaulis eriosolenus (A. Gray) Standl. -- accepted -- Big Bend ringstem
  Anulocaulis leiosolenus (Torr.) Standl. -- accepted -- ringstem, southwestern ringstem
  Anulocaulis leiosolenus var. leiosolenus (Torr.) Standl. -- accepted -- southwestern ringstem
  Aquilegia chaplinei Standl. ex Payson -- accepted -- Chaplin's golden columbine
  Aquilegia chrysantha var. chaplinei (Standl. ex Payson) E.J. Lott -- not accepted -- Chaplin's golden columbine
  Aquilegia jonesii var. elatior (Standl.) Boothman -- not accepted -- blue limestone columbine
  Arabis porphyrea Wooton & Standl. -- not accepted
  Aralia bicrenata Wooton & Standl. -- not accepted
  Aralia racemosa ssp. bicrenata (Wooton & Standl.) S.L. Welsh & N.D. Atwood -- accepted -- American spikenard
  Arenaria lanuginosa var. mearnsii (Wooton & Standl.) Kearney & Peebles -- not accepted
  Arenaria saxosa var. mearnsii (Wooton & Standl.) Kearney & Peebles -- not accepted
  Argythammia cyanophylla (Wooton & Standl.) J.W. Ingram -- not accepted
  Argythamnia cyanophylla (Wooton & Standl.) J.W. Ingram -- not accepted -- Charleston Mountain silverbush
  Aristida pansa Wooton & Standl. -- accepted -- Wooton threeawn, Wooton's threeawn
  Aristida pansa f. pansa Wooton & Standl. -- accepted
  Aristida pansa var. pansa Wooton & Standl. -- not accepted -- Wooton's threeawn
  Aristida vaseyi Wooton & Standl. -- not accepted
  Aristolochia marshii Standl. -- not accepted
  Aristolochia watsonii Wooton & Standl. -- accepted -- Indian root, Watson's dutchman's pipe
  Arthrocnemum subterminale (Parish) Standl. -- accepted -- Parish's glasswort
  Aster amplifolius (Woot. & Standl.) Kittell -- not accepted
  Aster aquifolius (Greene ex Woot. & Standl.) S.F. Blake -- not accepted
  Aster horridus (Woot. & Standl.) S.F. Blake -- not accepted
  Aster hydrophilus Greene ex Woot. & Standl. -- not accepted
  Aster neomexicana Woot. & Standl. -- not accepted
  Aster neomexicanus Woot. & Standl. -- not accepted
  Astragalus albulus Wooton & Standl. -- accepted -- cibola milkvetch
  Astragalus altus Wooton & Standl. -- accepted -- tall milkvetch
  Astragalus harringtonii (Rydb.) Coville & Standl. ex Hultén -- not accepted
  Astragalus impensis (E. Sheld.) Wooton & Standl. -- not accepted
  Astragalus neomexicanus Wooton & Standl. -- accepted -- New Mexico milkvetch
  Astragalus proximus (Rydb.) Wooton & Standl. -- accepted -- Aztec milkvetch
  Atriplex argentea var. rydbergii (Standl.) S.L. Welsh -- accepted -- thickfoot saltbush
  Atriplex collina Wooton & Standl. -- not accepted
  Atriplex covillei (Standl.) J.F. Macbr. -- not accepted -- Coville's orach
  Atriplex davidsonii Standl. -- not accepted
  Atriplex drymarioides Standl. -- not accepted -- seashore saltbush
  Atriplex falcata (M.E. Jones) Standl. -- not accepted -- sickle saltbush
  Atriplex griffithsii Standl. -- not accepted -- Griffiths' saltbush
  Atriplex hillmanii (M.E. Jones) Standl. -- not accepted -- Hillman's silverscale
  Atriplex jonesii Standl. -- not accepted
  Atriplex lentiformis var. griffithsii (Standl.) L.D. Benson -- not accepted
  Atriplex minuscula Standl. -- not accepted -- lesser saltscale
  Atriplex parishii var. minuscula (Standl.) S.L. Welsh -- accepted -- lesser saltscale
  Atriplex pentandra (Jacq.) Standl. -- not accepted -- crested saltbush, seashore orach
  Atriplex serenana var. davidsonii (Standl.) Munz -- accepted -- Davidson's bractscale
  Atriplex torreyi var. griffithsii (Standl.) G.D. Br. -- accepted -- Griffiths' saltbush
  Atriplex wardii Standl. -- not accepted -- Ward's saltbush
  Atriplex X neomexicana Standl. (pro. sp.) -- accepted -- New Mexico saltbush
  Batocarpus costaricensis Standl. & L.O. Williams -- accepted
  Besleria callista Standl. & L.O. Williams -- not accepted
  Boechera porphyrea (Wooton & Standl.) Windham, Al-Shehbaz & P.J. Alexander -- accepted
  Boerhavia lindheimeri Standl. -- not accepted
  Boerhavia megaptera Standl. -- accepted -- annual spiderling, Tucson Mountain spiderling
  Boerhavia torreyana (S. Watson) Standl. -- accepted -- creeping spiderling
  Bonifazia Standl. & Steyerm. -- not accepted
  Bonifazia quezalteca Standl. & Steyerm. -- not accepted
  Brickellia brachyphylla var. hinckleyi (Standl.) Flyr -- not accepted -- Hinckley's brickellia
  Brickellia chlorolepis (Woot. & Standl.) Shinners -- not accepted
  Brickellia eupatorioides var. chlorolepis (Woot. & Standl.) B.L. Turner -- accepted -- false boneset
  Brickellia hinckleyi Standl. -- accepted -- Hinckley's brickellbush
  Brickellia hinckleyi var. hinckleyi Standl. -- accepted -- Hinckley's brickellbush, Hinckley's brickellia
  Brickellia rosemarinifolia var. chlorolepis (Woot. & Standl.) W.A. Weber -- not accepted
  Brickellia rosmarinifolia ssp. chlorolepis (Woot. & Standl.) W.A. Weber -- not accepted
  Brickellia venosa (Woot. & Standl.) B.L. Rob. -- accepted -- veiny brickellbush
  Bromus frondosus (Shear) Wooton & Standl. -- accepted -- weeping brome
  Caesalpinia phyllanthoides Standl. -- accepted -- wait-a-bit vine
  Caesalpinia violacea Standl. -- accepted -- brasiletto
  Calliandra houstoniana (Mill.) Standl. -- accepted
  Calliandra media (M. Martens & Galeotti) Standl. -- not accepted
  Calophyllum brasiliense var. antillanum (Britton) Standl. -- not accepted
  Capsicum frutescens sensu Standl., non L. -- not accepted
  Carex lenticularis var. dolia (M.E. Jones) L.A. Standl. -- accepted -- Enander's sedge
  Carex lenticularis var. impressa (L.H. Bailey) L.A. Standl. -- accepted -- fewrib sedge, lakeshore sedge
  Carex lenticularis var. lipocarpa (T. Holm) L.A. Standl. -- accepted -- Kellogg sedge, Kellogg's sedge
  Carex scopulorum var. prionophylla (T. Holm) L.A. Standl. -- accepted -- firethread sedge
  Cassia fasciculata var. rostrata (Wooton & Standl.) B.L. Turner -- not accepted
  Cassia rostrata (Wooton & Standl.) Tidestr. -- not accepted
  Castilleja austromontana Standl. & Blumer -- accepted -- Rincon Indian paintbrush, Rincon Mountain Indian paintbrush
  Castilleja cruenta Standl. -- not accepted
  Castilleja inconstans Standl. -- not accepted
  Castilleja organorum Standl. -- accepted -- Organ Mountain Indian paintbrush
  Castilleja patriotica var. blumeri (Standl.) Kearney & Peebles -- not accepted
  Castilleja wootonii Standl. -- accepted -- Sacramento Mountain Indian paintbrush
  Centrostachys aspera (L.) Standl. -- not accepted
  Centrostachys indica (L.) Standl. -- not accepted
  Cestrum purpureum (Lindl.) Standl. -- not accepted
  Chamaecrista rostrata Wooton & Standl. -- not accepted
  Chamaecrista wrightii (A. Gray) Wooton & Standl. -- not accepted
  Chamaesyce chaetocalyx (Boiss.) Wooton & Standl. -- not accepted -- bristlecup sandmat
  Chamaesyce chaetocalyx var. chaetocalyx (Boiss.) Wooton & Standl. -- not accepted -- bristlecup sandmat
  Chamaesyce micromera (Boiss. ex Engelm.) Wooton & Standl. -- not accepted -- desert spurge, Sonoran sandmat
  Chamaesyce neomexicana (Greene) Standl. -- not accepted
  Chamaesyce pediculifera (Engelm.) Rose & Standl. -- not accepted -- Carrizo Mountain sandmat
  Chamaesyce serrula (Engelm.) Wooton & Standl. -- not accepted -- saw-tooth sandmat, sawtooth sandmat
  Chenopodium ambrosioides var. vagans (Standl.) J.T. Howell -- not accepted
  Chenopodium arizonicum Standl. -- not accepted
  Chenopodium dacoticum Standl. -- not accepted
  Chenopodium farinosum (S. Watson) Standl. -- not accepted
  Chenopodium fremontii var. pringlei (Standl.) Aellen -- not accepted -- Fremont's goosefoot, Pringle's goosefoot
  Chenopodium glaucum ssp. salinum (Standl.) Aellen -- not accepted
  Chenopodium glaucum var. salinum (Standl.) B. Boivin -- accepted -- Rocky Mountain goosefoot
  Chenopodium hians Standl. -- accepted -- hians goosefoot, pinyon goosefoot
  Chenopodium macrospermum var. halophilum (Phil.) Standl. -- not accepted -- saltloving goosefoot
  Chenopodium neomexicanum Standl. -- accepted -- New Mexico goosefoot
  Chenopodium neomexicanum var. neomexicanum Standl. -- not accepted -- New Mexico goosefoot
  Chenopodium neomexicanum var. palmeri (Standl.) T.W. Walters -- not accepted -- Palmer's goosefoot
  Chenopodium nevadense Standl. -- accepted -- Nevada goosefoot
  Chenopodium pallescens Standl. -- accepted -- light goosefoot, slimleaf goosefoot
  Chenopodium palmeri Standl. -- not accepted
  Chenopodium salinum Standl. -- not accepted -- Rocky Mountain goosefoot
  Choisya arizonica Standl. -- not accepted
  Choisya dumosa var. arizonica (Standl.) L.D. Benson -- accepted -- Arizona orange, starleaf
  Choisya dumosa var. mollis (Standl.) L.D. Benson -- accepted -- Mexican orange, zorillo
  Choisya mollis Standl. -- not accepted -- Santa Cruz star leaf
  Chrysophyllum mexicanum Brandegee ex Standl. -- accepted -- caimitillo
  Chrysopsis cryptocephala Woot. & Standl. -- not accepted
  Chrysopsis nitidula Woot. & Standl. -- not accepted
  Chrysopsis senilis Woot. & Standl. -- not accepted
  Chrysothamnus baileyi Woot. & Standl. -- not accepted -- Bailey's rabbitbrush
  Chrysothamnus pulchellus ssp. baileyi (Woot. & Standl.) H.M. Hall & Clem. -- not accepted -- Bailey's rabbitbrush
  Chrysothamnus pulchellus ssp. elatior (Standl.) H.M. Hall & Clem. -- not accepted
  Chrysothamnus pulchellus var. baileyi (Woot. & Standl.) S.F. Blake -- not accepted
  Cirsium calcareum (M.E. Jones) Woot. & Standl. -- not accepted -- Cainville thistle
  Cirsium gilense Woot. & Standl. -- not accepted -- Gila thistle
  Cirsium inornatum Woot. & Standl. -- not accepted -- Cloudcroft thistle
  Cirsium pallidum Woot. & Standl. -- not accepted -- pale thistle
  Cirsium perennans (Greene) Woot. & Standl. -- not accepted
  Cirsium pulchellum (Greene) Woot. & Standl. -- not accepted
  Cirsium vinaceum Woot. & Standl. -- accepted -- Sacramento Mountains thistle
  Clavenna tetrandra (L.) Standl. -- not accepted
  Clematis neomexicana Woot. & Standl. -- not accepted
  Coldenia gossypina (Wooton & Standl.) I.M. Johnst. -- not accepted
  Coleosanthus venosus Woot. & Standl. -- not accepted
  Columnea muenscheri Standl. -- not accepted
  Columnea pilosissima Standl. -- not accepted
  Columnea purpusii Standl. -- accepted
  Columnea rubricaulis Standl. -- accepted
  Columnea stenophylla Standl. -- not accepted
  Columnea venusta Standl. -- not accepted
  Commicarpus Standley -- accepted
  Commicarpus scandens (L.) Standl. -- accepted -- climbing wartclub
  Coreopsis tripteris var. deamii Standl. -- not accepted
  Coreopsis tripteris var. intercedens Standl. -- not accepted
  Corytholoma warszewiczii (Bouché & Hanst.) Standl. -- not accepted
  Cracca potosina (Brandegee) Standl. -- not accepted
  Crepis neomexicana Woot. & Standl. -- not accepted
  Croton arenicola Rose & Standl. -- not accepted
  Croton campechianus Standl. -- not accepted
  Croton cardenasii Standl. -- accepted
  Croton ceanothifolius Standl. & L.O. Williams -- not accepted
  Croton charaguensis Standl. -- accepted
  Croton comayaguanus Standl. & L.O. Williams -- accepted
  Croton comes Standl. & L.O. Williams -- accepted
  Croton eremophilus Wooton & Standl. -- not accepted
  Croton jimenezii Standl. & Valerio -- accepted
  Croton lundellii Standl. -- accepted
  Croton olanchanus Standl. & L.O. Williams -- accepted
  Croton ortegae Standl. -- accepted
  Croton payaquensis Standl. -- accepted
  Croton segoviarus Standl. & L.O. Williams -- accepted
  Croton skutchii Standl. -- accepted
  Croton watsonii Standl. -- accepted
  Cymbia occidentalis (Nutt.) Standl. -- not accepted
  Cynthia montana (Michx.) Standl. -- not accepted
  Cynthia viridis Standl. -- not accepted
  Cyperus hermaphroditus (Jacq.) Standl. -- accepted -- hermaphrodite flatsedge
  Cyphomeris Standl. -- accepted
  Cyphomeris crassifolia (Standl.) Standl. -- accepted -- leachlobe cyphomeris
  Cyphomeris gypsophiloides (M. Martens & Galeotti) Standl. -- accepted -- red cyphomeris
  Dalbergia stevensonii Standl. -- accepted
  Descurainia adenophora (Wooton & Standl.) O.E. Schulz -- accepted -- blunt tansymustard
  Descurainia obtusa ssp. adenophora (Wooton & Standl.) Detling -- not accepted -- blunt tansy mustard, blunt tansymustard
  Descurainia pinnata ssp. glabra (Wooton & Standl.) Detling -- accepted -- western tansy mustard, western tansymustard
  Descurainia pinnata var. glabra (Wooton & Standl.) Shinners -- not accepted
  Dichondra brachypoda Wooton & Standl. -- accepted -- New Mexico pony's-foot, New Mexico ponysfoot
  Dioclea wilsonii Standl. -- accepted -- Wilson's clusterpea
  Dioon mejiae Standl. & L.O. Williams -- accepted
  Diospyros sintenisii (Krug & Urb.) Standl. -- accepted -- Guayabota
  Diospyros stintenisii (Krug & Urban) Standl. -- not accepted
  Diphysa thurberi (A. Gray) Rydb. ex Standl. -- accepted -- Thurber's diphysa
  Disocactus quezaltecus (Standl. & Steyerm.) Kimnach -- accepted
  Ditaxis brandegeei (Millsp.) Rose & Standl. -- accepted -- Sonoran silverbush
  Ditaxis brandegeei var. brandegeei (Millsp.) Rose & Standl. -- not accepted
  Ditaxis brandegei (Millsp.) Rose & Standl. -- not accepted
  Ditaxis cyanophylla Wooton & Standl. -- accepted -- Charleston Mountain silverbush
  Dithyrea griffithsii Wooton & Standl. -- not accepted
  Dithyrea wislizeni var. griffithsii (Wooton & Standl.) Payson -- not accepted
  Dodecatheon dentatum ssp. ellisiae (Standl.) H.J. Thomps. -- not accepted -- Ellis' shootingstar, white shootingstar
  Dodecatheon ellisiae Standl. -- not accepted
  Doliocarpus olivaceus Sprague & R.O. Williams ex Standl. -- accepted -- green caskfruit
  Douglasia alaskana (Coville & Standl. ex Hultén) S. Kelso -- not accepted -- Alaskan douglasia
  Draba streptocarpa var. tonsa (Wooton & Standl.) O.E. Schulz -- not accepted
  Draba tonsa Wooton & Standl. -- not accepted
  Drymaria pachyphylla Wooton & Standl. -- accepted -- thick-leaf drymary, thickleaf drymary
  Drymonia belizensis Standl. -- not accepted
  Drymonia ochroleuca Standl. -- not accepted
  Ebenopsis confinis (Standl.) Britton & Rose -- accepted
  Echinocereus coccineus var. rosei (Wooton & Standl.) A.D. Zimmerman -- not accepted
  Echinocereus neomexicanus Standl. -- not accepted
  Echinocereus polyacanthus var. neomexicanus (Standl.) L.D. Benson -- not accepted
  Echinocereus polyacanthus var. rosei (Wooton & Standl.) D. Weniger -- not accepted
  Echinocereus rosei Wooton & Standl. -- not accepted
  Echinocereus triglochidiatus var. neomexicanus (Standl.) W.T. Marshall -- not accepted
  Echinochloa colona var. zonalis (Guss.) Wooton & Standl. -- not accepted
  Echinochloa colonum var. zonalis (Guss.) Wooton & Standl. -- not accepted
  Echinochloa crus-galli var. mutica Wooton & Standl. -- not accepted
  Eddya gossypina Wooton & Standl. -- not accepted
  Endolepis covillei Standl. -- not accepted -- Coville's endolepis
  Endolepis dioica (Nutt.) Standl. -- not accepted -- scurfless saltbush, Suckley's endolepis, Suckley's saltbush
  Epiphyllum quezaltecum (Standl. & Steyerm.) L.O. Williams -- not accepted
  Erechtites agrestis (Sw.) Standl. & Steyerm. -- not accepted
  Eriastrum Wooton & Standl. -- accepted -- woollystar, woolstar
  Eriastrum filifolium (Nutt.) Wooton & Standl. -- accepted -- lavender woollystar
  Ericameria pulchella ssp. baileyi (Woot. & Standl.) L.C. Anderson -- not accepted
  Ericameria pulchella var. elatior (Standl.) L.C. Anderson -- not accepted
  Erigeron gilensis Woot. & Standl. -- not accepted -- Gila fleabane
  Eriogonum ainsliei Standl. -- not accepted
  Eriogonum gypsophilum Wooton & Standl. -- accepted -- gypsum wild buckwheat, Seven River Hills buckwheat
  Eriogonum leptophyllum (Torr. & A. Gray) Wooton & Standl. -- accepted -- slender-leaf buckwheat, slenderleaf buckwheat
  Eriogonum leucophyllum Wooton & Standl. -- not accepted
  Eriogonum pannosum Wooton & Standl. -- not accepted
  Erysimum desertorum (Wooton & Standl.) Rossbach -- not accepted
  Eschenbachia tenuisecta (A. Gray) Woot. & Standl. -- not accepted
  Euphorbia amphimalaca Standl. -- not accepted
  Euphorbia barbicarina (Millsp.) Standl. -- not accepted
  Euphorbia cuchumatanensis Standl. & Steyerm. -- not accepted
  Euphorbia floresii Standl. -- not accepted
  Euphorbia guatemalensis Standl. & Steyerm. -- accepted
  Euphorbia hondurana Standl. & L.O. Williams -- not accepted
  Euphorbia mexiae Standl. -- accepted
  Euphorbia pantomalaca Standl. & Steyerm. -- not accepted
  Euphorbia pulcherrima f. lutea Standl. -- not accepted
  Euphorbia rutilis (Millsp.) Standl. & Steyerm. -- accepted
  Euphorbia senilis Standl. & Steyerm. -- not accepted
  Euphorbia siguatepequensis Standl. -- not accepted
  Euphorbia steyermarkii Standl. -- not accepted
  Euphorbia tresmariae (Millsp.) Standl. -- accepted
  Euphorbia valerii Standl. -- not accepted
  Euphorbia verapazensis Standl. & Steyerm. -- accepted
  Euphorbia yucatanensis (Millsp.) Standl. -- accepted
  Eurybia horrida (Woot. & Standl.) G.L. Nesom -- not accepted -- horrid herrickia
  Eustoma barkleyi Standl. ex Shinners -- not accepted
  Fagonia californica ssp. laevis (Standl.) Wiggins -- not accepted
  Fagonia californica var. laevis (Standl.) L.D. Benson -- not accepted
  Fagonia californica var. longipes (Standl.) L.D. Benson -- not accepted
  Fagonia laevis Standl. -- accepted -- California fagonbush, California fagonia
  Fagonia longipes Standl. -- not accepted
  Fendlerella utahensis var. cymosa (Greene ex Wooton & Standl.) Kearney & Peebles -- not accepted -- Arizona fendlerella, Utah fendlerbush
  Forchhammeria Standl. -- accepted
  Forestiera shrevei Standl. -- accepted -- desert olive, desert-olive
  Froelichia arizonica Thornber ex Standl. -- accepted -- Arizona snakecotton
  Froelichia braunii Standl. -- not accepted
  Funastrum heterophyllum (Engelm. ex Torr.) Standl. -- not accepted
  Galpinsia camporum Wooton & Standl. -- not accepted
  Garrya goldmanii Wooton & Standl. -- not accepted
  Garrya ovata ssp. goldmanii (Wooton & Standl.) Dahling -- accepted -- Goldman's silktassel
  Gaura gracilis Wooton & Standl. -- not accepted
  Gaura hexandra ssp. gracilis (Wooton & Standl.) P.H. Raven & D.P. Greg. -- not accepted -- Harlequin bush, harlequinbush
  Geranium caespitosum var. eremophilum (Wooton & Standl.) W.C. Martin & C.R. Hutchins -- not accepted -- purple cluster geranium
  Geranium eremophilum Wooton & Standl. -- not accepted
  Geranium lentum Wooton & Standl. -- accepted -- Mogollon crane's-bill, Mogollon geranium
  Gilia brachysiphon Wooton & Standl. -- not accepted
  Gilia campylantha Wooton & Standl. -- not accepted
  Gilia texana (Greene) Wooton & Standl. -- not accepted
  Gomphrena dispersa Standl. -- not accepted
  Gomphrena viridis Wooton & Standl. -- accepted
  Grayia arizonica (Standl.) E.H. Zacharias -- accepted -- Arizona siltbush, siltbush
  Grindelia arizonica var. neomexicana (Woot. & Standl.) G.L. Nesom -- not accepted -- New Mexican gumweed
  Grindelia neomexicana Woot. & Standl. -- not accepted
  Grindelia scabra var. neomexicana (Woot. & Standl.) Steyerm. -- not accepted
  Hackelia grisea (Wooton & Standl.) I.M. Johnst. -- not accepted
  Hackelia hirsuta (Wooton & Standl.) I.M. Johnst. -- accepted -- New Mexico stickseed
  Haplopappus spinulosus ssp. laevis (Woot. & Standl.) H.M. Hall -- not accepted
  Hedeoma pulcherrima Wooton & Standl. -- accepted -- White Mountain false pennyroyal
  Hedeoma pulcherrimum Wooton & Standl. -- not accepted
  Hedyotis nigricans var. floridana (Standl.) Wunderlin -- not accepted -- Florida diamondflowers
  Hedyotis purpurea var. floridana (Standl.) Fosberg -- not accepted
  Heisteria longipes Standl. -- not accepted
  Helianthus canus (Britton) Woot. & Standl. -- not accepted
  Heliocereus heterodoxus Standl. & Steyerm. -- not accepted
  Heliomeris multiflora var. brevifolia (Greene ex Woot. & Standl.) Yates -- accepted -- showy goldeneye
  Heliotropium convolvulaceum var. racemosum (Rose & Standl.) I.M. Johnst. -- not accepted
  Heliotropium racemosum Rose & Standl. -- accepted -- coastal plain heliotrope, coastalplain heliotrope
  Herrickia Woot. & Standl. -- accepted -- herrickia
  Herrickia horrida Woot. & Standl. -- accepted -- horrid herrickia
  Hesperonia aspera (Greene) Standl. -- not accepted
  Hesperonia bigelovii (A. Gray) Standl. -- not accepted
  Hesperonia cedrosensis Standl. -- not accepted
  Hesperonia tenuiloba (S. Watson) Standl. -- not accepted
  Heterotheca fulcrata var. senilis (Woot. & Standl.) Semple -- accepted -- rockyscree false goldenaster, rockyscree falsegoldenaster
  Heuchera pulchella Wooton & Standl. -- accepted -- Sandia Mountain alumroot
  Houstonia floridana Standl. -- not accepted
  Houstonia nigricans var. floridana (Standl.) Terrell -- not accepted
  Houstonia procumbens (J.F. Gmel.) Standl. -- accepted -- roundleaf bluet
  Houstonia rigidiuscula (A. Gray) Wooton & Standl. -- not accepted
  Hymenoxys brachyactis Woot. & Standl. -- accepted -- East View rubberweed
  Ipomopsis campylantha (Wooton & Standl.) W.C. Martin & C.R. Hutchins -- not accepted
  Iresine heterophylla Standl. -- accepted -- Standley's bloodleaf
  Iresine palmeri (S. Watson) Standl. -- accepted -- Palmer's bloodleaf
  Iresine rhizomatosa Standl. -- accepted -- Juda's bush, rootstock bloodleaf
  Jarilla chocola Standl. -- not accepted
  Kohleria allenii Standl. & L.O. Williams -- accepted
  Kohleria rupicola Standl. & L.O. Williams -- not accepted
  Krigia biflora var. viridis (Standl.) Kim -- not accepted -- twoflower dwarfdandelion
  Kuhnia chlorolepis Woot. & Standl. -- not accepted
  Kuhnia eupatorioides var. chlorolepis (Woot. & Standl.) Cronquist -- not accepted
  Kuhnia rosemarinifolia var. chlorolepis (Woot. & Standl.) S.F. Blake -- not accepted
  Kuhnia rosmarinifolia var. chlorolepis (Woot. & Standl.) S.F. Blake -- not accepted
  Lagenaria siceraria (Molina) Standl. -- accepted -- bottle gourd
  Lagotis minor (Willd.) Standl. -- not accepted -- little weaselsnout
  Lathyrus oreophilus Wooton & Standl. -- not accepted
  Lathyrus oreophyllus Wooton & Standl. -- not accepted
  Lavauxia taraxacoides Wooton & Standl. -- not accepted
  Leptilon integrifolium Woot. & Standl. -- not accepted
  Leptoglottis occidentalis (Wooton & Standl.) Britton & Rose -- not accepted
  Lesquerella lata Wooton & Standl. -- not accepted -- Lincoln County bladderpod
  Lesquerella pinetorum Wooton & Standl. -- not accepted -- White Mountain bladderpod
  Lesquerella praecox Wooton & Standl. -- not accepted
  Lesquerella rectipes Wooton & Standl. -- not accepted -- straight bladderpod
  Liatris X ridgwayi Standl. -- accepted -- Ridgeway's gayfeather
  Lorandersonia baileyi (Wooton & Standl.) Urbatsch, R.P. Roberts & Neubig -- accepted -- Bailey's rabbitbrush
  Lotus greenei (Wooton & Standl.) Ottley ex Kearney & Peebles -- not accepted -- Greene birdfoot trefoil, Greene's bird's-foot trefoil, Greene's birdsfoot trefoil
  Lupinus aquilinus Wooton & Standl. -- not accepted
  Lupinus kingii var. argillaceus (Wooton & Standl.) C.P. Sm. -- accepted -- King's lupine
  Lupinus laetus Wooton & Standl. -- not accepted
  Lupinus sierrae-blancae Wooton & Standl. -- accepted -- White Mountain lupine
  Lupinus sierrae-blancae ssp. aquilinus (Wooton & Standl.) Fleak & D.B. Dunn -- accepted -- White Mountain lupine
  Lupinus sierrae-blancae ssp. sierrae-blancae Wooton & Standl. -- accepted -- White Mountain lupine
  Lysimachia ciliata var. validula (Greene ex Wooton & Standl.) Kearney & Peebles -- not accepted
  Machaeranthera amplifolia Woot. & Standl. -- not accepted
  Machaeranthera angustifolia Woot. & Standl. -- not accepted
  Machaeranthera angustifolia Rydb. non Woot. & Standl. -- not accepted
  Machaeranthera aquifolia Greene ex Woot. & Standl. -- not accepted
  Machaeranthera centaureoides Greene ex Woot. & Standl. -- not accepted
  Machaeranthera laevis (Woot. & Standl.) Shinners -- not accepted
  Machaeranthera pygmaea (A. Gray) Woot. & Standl. -- not accepted
  Machaeranthera simplex Woot. & Standl. -- not accepted
  Machaeranthera viscida (Woot. & Standl.) R.L. Hartm. -- not accepted -- sticky tansyaster
  Matelea quirosii (Standl.) Woodson -- not accepted -- arborescente rattan
  Menodora scabra var. laevis (Wooton & Standl.) Steyerm. -- not accepted
  Mentzelia asperula Wooton & Standl. -- accepted -- mountain stickleaf, Organ Mountain blazingstar
  Mentzelia pumila var. procera (Wooton & Standl.) J. Darl. -- not accepted
  Mentzelia springeri (Standl.) Tidestr. -- accepted -- Santa Fe blazingstar
  Mentzelia strictissima (Wooton & Standl.) J. Darl. -- accepted -- grassland blazingstar, sandlilly
  Mimosa occidentalis (Wooton & Standl.) B.L. Turner -- not accepted
  Mimosa quadrivalvis var. occidentalis (Wooton & Standl.) Barneby -- not accepted
  Mimosa wherryana (Britton) Standl. -- not accepted
  Mimulus parvulus Wooton & Standl. -- not accepted
  Mirabilis californica var. cedrosensis (Standl.) J.F. Macbr. -- not accepted -- California four o'clock
  Mirabilis carletonii (Standl.) Standl. -- not accepted
  Mirabilis ciliata (Standl.) Standl. -- not accepted
  Mirabilis coahuilensis (Standl.) Standl. -- not accepted
  Mirabilis comata (Small) Standl. -- not accepted -- hairy-tuft four o'clock
  Mirabilis decipiens (Standl.) Standl. -- not accepted -- broadleaf four o'clock
  Mirabilis exaltata (Standl.) Standl. -- not accepted
  Mirabilis expansa (Ruiz & Pav.) Standl. -- accepted -- mauka
  Mirabilis froebelii var. glabrata (Standl.) Jeps. -- not accepted
  Mirabilis gausapoides (Standl.) Standl. -- not accepted
  Mirabilis gigantea (Standl.) Shinners -- accepted -- giant four o'clock
  Mirabilis glabra (S. Watson) Standl. -- accepted -- smooth four o'clock, smooth four-o'clock
  Mirabilis glandulosa (Standl.) W.A. Weber -- not accepted
  Mirabilis grayana (Standl.) Standl. -- not accepted
  Mirabilis jalapa ssp. lindheimeri Standl. -- not accepted
  Mirabilis laevis var. cedrosensis (Standl.) Munz -- not accepted -- California four o'clock
  Mirabilis lanceolata (Rydb.) Standl. -- not accepted
  Mirabilis lindheimeri (Standl.) Shinners -- not accepted
  Mirabilis linearis var. decipiens (Standl.) S.L. Welsh -- accepted -- broadleaf four o'clock
  Mirabilis melanotricha (Standl.) Spellenb. -- accepted
  Mirabilis multiflora var. glandulosa (Standl.) J.F. Macbr. -- accepted -- Colorado four o'clock
  Mirabilis pauciflora (Buckley) Standl. -- not accepted
  Mirabilis polyphylla (Standl.) Standl. -- not accepted -- mayleaf four o'clock
  Mirabilis pumila (Standl.) Standl. -- not accepted -- dwarf four o'clock, dwarf four-o'clock, little four-o'clock
  Mirabilis rotata (Standl.) I.M. Johnst. -- not accepted
  Mirabilis rotundifolia (Greene) Standl. -- accepted -- roundleaf four o'clock, roundleaf four-o'clock
  Mirabilis tenuiloba var. polyphylla (Standl.) J.F. Macbr. -- accepted
  Momisia iguanaea (Jacq.) Rose & Standl. -- not accepted
  Montanoa hibiscifolia (Benth.) Standl. -- accepted -- montanoa, tree daisy, treedaisy
  Morongia occidentalis Wooton & Standl. -- not accepted
  Moussonia rupicola (Standl. & L.O. Williams) Wiehler -- accepted
  Myosurus egglestonii Wooton & Standl. -- not accepted
  Nama foliosum (Wooton & Standl.) Tidestr. -- not accepted
  Nama tenue (Wooton & Standl.) Tidestr. -- not accepted
  Nama xylopodum (Wooton & Standl.) C.L. Hitchc. -- not accepted -- yellowseed fiddleleaf
  Nopalea hondurensis (Standl.) Rebman -- accepted
  Nuphar advena ssp. ozarkana (G.S. Mill. & Standl.) Padgett -- accepted
  Nuphar advena ssp. ulvacea (G.S. Mill. & Standl.) Padgett -- accepted -- yellow pond-lily
  Nuphar advena var. fraterna (G.S. Mill. & Standl.) Standl. -- not accepted
  Nuphar fluviatilis (R.M. Harper) Standl. -- not accepted
  Nuphar lutea ssp. ozarkana (G.S. Mill. & Standl.) E.O. Beal -- not accepted
  Nuphar lutea ssp. ulvacea (G.S. Mill. & Standl.) E.O. Beal -- not accepted -- yellow pond-lily
  Nuphar luteum ssp. ulvaceum (G.S. Mill. & Standl.) E.O. Beal -- not accepted
  Nuphar luteum var. ozarkanum (G.S. Mill. & Standl.) E.O. Beal -- not accepted
  Nuphar luteum var. ulvaceum (G.S. Mill. & Standl.) E.O. Beal -- not accepted
  Nuphar microcarpa (G.S. Mill. & Standl.) Standl. -- not accepted
  Nuphar orbiculata (Small) Standl. -- not accepted -- yellow pond-lily
  Nuphar ovata (G.S. Mill. & Standl.) Standl. -- not accepted
  Nuphar ozarkana (G.S. Mill. & Standl.) Standl. -- not accepted
  Nuphar ulvacea (G.S. Mill. & Standl.) Standl. -- not accepted -- yellow pond-lily
  Nuttallia laciniata (Rydb.) Wooton & Standl. -- not accepted
  Nymphaea bombycina G.S. Mill. & Standl. -- not accepted
  Nymphaea chartacea G.S. Mill. & Standl. -- not accepted
  Nymphaea fraterna G.S. Mill. & Standl. -- not accepted
  Nymphaea ulvacea G.S. Mill. & Standl. -- not accepted
  Nymphozanthus ozarkanus (G.S. Mill. & Standl.) E.J. Palmer & Steyerm. -- not accepted
  Oenothera amplexicaulis (Wooton & Standl.) Tidestr. -- not accepted
  Oenothera caespitosa ssp. australis Wooton & Standl. -- not accepted
  Oenothera caespitosa var. australis (Wooton & Standl.) Munz -- not accepted
  Oenothera cespitosa ssp. australis Wooton & Standl. -- not accepted
  Oenothera cespitosa var. australis (Wooton & Standl.) Munz -- not accepted
  Oenothera cinerea (Wooton & Standl.) W.L. Wagner & Hoch -- accepted -- woolly beeblossom
  Oenothera cinerea ssp. cinerea (Wooton & Standl.) W.L. Wagner & Hoch -- accepted -- woolly beeblossom
  Oenothera ctenophylla (Wooton & Standl.) Tidestr. -- not accepted
  Oenothera flava ssp. taraxacoides (Wooton & Standl.) W.L. Wagner -- not accepted -- yellow evening primrose, yellow evening-primrose
  Oenothera hamata (Wooton & Standl.) Tidestr. -- not accepted
  Oenothera hexandra ssp. gracilis (Wooton & Standl.) W.L. Wagner & Hoch -- accepted -- harlequinbush
  Oenothera macrosiphon Wooton & Standl. -- not accepted
  Oenothera procera Wooton & Standl. -- not accepted
  Oenothera runcinata var. leucotricha (Wooton & Standl.) Munz -- not accepted
  Oenothera taraxacoides (Wooton & Standl.) Munz -- not accepted
  Opuntia hondurensis Standl. -- not accepted
  Orbignya cohune (Mart.) Dahlgren ex Standl. -- not accepted -- cohune palm, Corozo cohune
  Oreobatus rubicundus Wooton & Standl. -- not accepted
  Ortholoma venustum (Standl.) Wiehler -- not accepted
  Oxybaphus carletonii (Standl.) Weath. -- not accepted
  Oxybaphus coahuilensis (Standl.) Weath. -- not accepted
  Oxybaphus corymbosus (Cav.) Standl. -- not accepted
  Oxybaphus exaltatus (Standl.) Weath. -- not accepted
  Oxybaphus gausapoides (Standl.) Standl. -- not accepted
  Oxybaphus giganteus (Standl.) Weath. -- not accepted
  Oxybaphus lanceolatus (Rydb.) Standl. -- not accepted
  Oxybaphus linearis var. decipiens (Standl.) Kearney & Peebles -- not accepted
  Oxybaphus pumilus (Standl.) Standl. -- not accepted
  Oxybaphus rotatus (Standl.) Weath. -- not accepted
  Oxybaphus rotundifolius (Greene) Standl. -- not accepted
  Oxytropis spicata (Hook.) Standl. -- not accepted
  Pachecoa prismatica (Sessé & Moc.) Standl. & B.G. Schub. -- not accepted
  Padus rufula Wooton & Standl. -- not accepted
  Palicourea brevithyrsa Britton & Standl. -- not accepted
  Parsonsia balsamona (Cham. & Schltdl.) Standl. -- not accepted
  Pedilanthus camporum Standl. & Steyerm. -- not accepted
  Pediomelum megalanthum (Wooton & Standl.) Rydb. -- accepted -- Intermountain Indian breadroot, large-flowered Indian breadroot
  Pediomelum megalanthum var. megalanthum (Wooton & Standl.) Rydb. -- accepted -- Intermountain Indian breadroot
  Peltanthera costaricensis (Standl. & Steyerm.) Cuatrec. -- not accepted
  Penstemon cardinalis Wooton & Standl. -- accepted -- cardinal beardtongue
  Penstemon cardinalis ssp. cardinalis Wooton & Standl. -- accepted -- cardinal beardtongue
  Penstemon metcalfei Wooton & Standl. -- accepted -- Metcalfe's beardtongue
  Penstemon neomexicanus Wooton & Standl. -- accepted -- New Mexico beardtongue
  Penstemon oliganthus Wooton & Standl. -- accepted -- Apache beardtongue
  Penstemon spinulosus Wooton & Standl. -- not accepted
  Petalostemon prostratus Wooton & Standl. -- not accepted
  Petradoria pumila ssp. graminea (Woot. & Standl.) L.C. Anderson -- accepted -- giant rockgoldenrod
  Petradoria pumila var. graminea (Woot. & Standl.) S.L. Welsh -- not accepted
  Phacelia bombycina Wooton & Standl. -- accepted -- Mangas Spring phacelia, Mangas Spring scorpion-weed, Mangas Spring scorpionweed
  Phacelia depauperata Wooton & Standl. -- not accepted
  Phacelia popei var. similis (Wooton & Standl.) J. Voss -- not accepted
  Phacelia tenuipes Wooton & Standl. -- not accepted
  Phaseolus grayanus Wooton & Standl. -- not accepted -- Gray's bean
  Phaseolus metcalfei Wooton & Standl. -- not accepted
  Phaseolus pedicellatus var. grayanus (Wooton & Standl.) A. Delgado ex Isely -- accepted -- Gray's bean
  Phemeranthus longipes (Wooton & Standl.) Kiger -- accepted -- pink fameflower
  Phlox grayi Wooton & Standl. -- not accepted
  Physalis caudella Standl. -- accepted -- southwestern groundcherry
  Physaria lata (Wooton & Standl.) O'Kane & Al-Shehbaz -- accepted -- Lincoln County bladderpod
  Physaria pinetorum (Wooton & Standl.) O'Kane & Al-Shehbaz -- accepted -- White Mountain bladderpod
  Physaria rectipes (Wooton & Standl.) O'Kane & Al-Shehbaz -- accepted -- straight bladderpod
  Pisonia albida (Heimerl) Britton ex Standl. -- accepted -- corcho bobo
  Pisonia capitata (S. Watson) Standl. -- accepted -- Mexican devil's-claws
  Pisonia helleri Standl. -- not accepted
  Pithecellobium confine Standl. -- not accepted
  Pithecellobium pallens (Benth.) Standl. -- not accepted
  Poinsettia eriantha (Benth.) Rose & Standl. -- not accepted
  Polemonium hinckleyi Standl. -- not accepted
  Polemonium pauciflorum ssp. hinckleyi (Standl.) Wherry -- accepted -- Hinckley's Jacob's ladder, Hinckley's polemonium
  Polygonatum cobrense (Wooton & Standl.) R.R. Gates -- not accepted -- McKittrick's Solomon's seal
  Prestonia exserta (A. DC.) Standl. -- accepted
  Proboscidea louisiana (Mill.) Wooton & Standl. -- not accepted
  Proboscidea parviflora (Wooton) Wooton & Standl. -- accepted -- devilsclaw, doubleclaw
  Proboscidea parviflora ssp. parviflora (Wooton) Wooton & Standl. -- accepted -- devil's claw, doubleclaw, unicorn plant
  Proboscidea parviflora var. parviflora (Wooton) Wooton & Standl. -- accepted -- doubleclaw
  Prosopis chilensis var. glandulosa (Torr.) Standl. -- not accepted
  Prosopis chilensis var. velutina (Wooton) Standl. -- not accepted
  Prunus serotina ssp. virens (Wooton & Standl.) McVaugh -- not accepted
  Prunus serotina var. rufula (Wooton & Standl.) McVaugh -- accepted -- black cherry, southwestern chokecherry
  Prunus serotina var. virens (Wooton & Standl.) McVaugh -- not accepted -- black cherry
  Prunus virens (Wooton & Standl.) Shreve ex Sarg. -- not accepted
  Prunus virens var. rufula (Wooton & Standl.) Sarg. -- not accepted
  Psilactis gentryi (Standl.) D. Morgan -- accepted -- Mexican tansy-aster, Mexican tansyaster
  Psoralea brachypus (Rydb.) Standl. -- not accepted
  Psoralea megalantha Wooton & Standl. -- not accepted
  Psoralea trinervata (Rydb.) Standl. -- not accepted
  Pterygota excelsa (Standl. & L.O. Williams) Kosterm. -- accepted
  Quamoclidion greenei (S. Watson) Standl. -- not accepted
  Randia portoricensis (Urb.) Britton & Standl. -- accepted -- Puerto Rico indigoberry
  Randia rhagocarpa Standl. -- not accepted -- crucillo
  Ratibida columnifera (Nutt.) Woot. & Standl. -- accepted -- prairie coneflower, redspike Mexican hat, upright prairie coneflower
  Rhododendron camtschaticum ssp. glandulosum (Standl. ex Small) Hultén -- not accepted -- Kamchatka rhododendron
  Rhododendron glandulosum (Standl. ex Small) Millais -- not accepted
  Rhus choriophylla Wooton & Standl. -- not accepted -- Mearns' sumac
  Rhus virens ssp. choriophylla (Wooton & Standl.) Young -- not accepted
  Rhus virens var. choriophylla (Wooton & Standl.) L.D. Benson -- accepted -- evergreen sumac, Mearns' sumac
  Rhynchosia pinetorum Standl. -- not accepted
  Rhynchosia rariflora Standl. -- not accepted
  Ribes nonscripta (A. Berger) Standley -- not accepted
  Richardia tricocca (Torr. & A. Gray) Standl. -- accepted -- prairie Mexican clover
  Richardia tricocco (Torr. & A. Gray) Standl. -- not accepted
  Robinia neomexicana var. rusbyi (Wooton & Standl.) W.C. Martin & C.R. Hutchins ex Peabody -- accepted -- New Mexico locust, Rusby's locust
  Robinia rusbyi Wooton & Standl. -- not accepted
  Rosa adenosepala Wooton & Standl. -- not accepted
  Rosa hypoleuca Wooton & Standl. -- not accepted
  Rosa woodsii var. adenosepala (Wooton & Standl.) W.C. Martin & C.R. Hutchins -- not accepted
  Rosa woodsii var. hypoleuca (Wooton & Standl.) W.C. Martin & C.R. Hutchins -- not accepted
  Salicornia depressa Standl. -- accepted -- Virginia glasswort
  Salicornia pacifica Standl. -- not accepted
  Salomonia cobrensis Wooton & Standl. -- not accepted
  Salvia earlei Wooton & Standl. -- not accepted
  Salvia pinguifolia (Fernald) Wooton & Standl. -- accepted -- rock sage
  Salvia vinacea Wooton & Standl. -- accepted -- largeflower sage
  Sambucus africana Standl. -- accepted
  Sambucus neomexicana var. vestita (Wooton & Standl.) Kearney & Peebles -- not accepted
  Sarcocornia pacifica (Standl.) A.J. Scott -- accepted -- Pacific swampfire
  Schizachyrium cirratum (Hack.) Wooton & Standl. -- accepted -- Texas bluestem
  Schradera exotica (J.F. Gmel.) Standl. -- accepted -- yellowshrub
  Schrankia hystricina (Small ex Britton & Rose) Standl. -- not accepted
  Schrankia nuttallii (DC. ex Britton & Rose) Standl. -- not accepted
  Schrankia nuttallii var. nuttallii (DC. ex Britton & Rose) Standl. -- not accepted -- Nuttall's sensitive briar
  Schrankia occidentalis (Wooton & Standl.) Standl. -- not accepted
  Scleria pterota var. melaleuca (Rchb. ex Schltdl. & Cham.) Standl. -- not accepted -- cortadora blanca
  Scrophularia laevis Wooton & Standl. -- accepted -- Organ Mountain figwort
  Scrophularia parviflora Wooton & Standl. -- accepted -- pineland figwort
  Selinocarpus diffusus ssp. nevadensis Standl. -- not accepted
  Selinocarpus nevadensis (Standl.) B.A. Fowler & B.L. Turner -- not accepted -- desert moonpod, Nevada moonpod
  Selinocarpus parvifolius (Torr.) Standl. -- not accepted -- littleleaf moonpod
  Senecio sacramentanus Woot. & Standl. -- accepted -- Sacramento ragwort
  Seymeria havardii (Pennell) Standl. -- not accepted
  Sicyos ampelophyllus Wooton & Standl. -- accepted -- streamside bur cucumber, streamside burr cucumber
  Sideranthus laevis Woot. & Standl. -- not accepted
  Sideranthus wootonii (Greene) Standl. -- not accepted
  Sisymbrium vernale (Wooton & Standl.) O.E. Schulz -- not accepted
  Solanum accrescens Standl. & C.V. Morton -- accepted
  Solanum accrescens ssp. accrescens Standl. & C.V. Morton -- accepted
  Solanum allophyllum (Miers) Standl. -- accepted
  Solanum celsum Standl. & C.V. Morton -- accepted
  Solanum muenscheri Standl. & Steyerm. -- accepted
  Solanum palmillae Standl. -- accepted
  Solanum pertenue Standl. & C.V. Morton -- accepted
  Solanum pluviale Standl. -- accepted
  Solanum ramonense C.V. Morton & Standl. -- accepted
  Solanum rojasianum (Standl. & Steyerm.) Bohs -- accepted
  Solanum storkii C.V. Morton & Standl. -- accepted
  Solanum vacciniiflorum Standl. & L.O. Williams -- accepted
  Solanum valerianum C.V. Morton & Standl. -- accepted
  Solenophora abietorum Standl. & Steyerm. -- accepted
  Solenophora wilsonii Standl. -- not accepted
  Solidago arizonica (A. Gray) Woot. & Standl. -- not accepted
  Solidago graminea (Woot. & Standl.) S.F. Blake -- not accepted
  Solidago howellii Woot. & Standl. -- not accepted
  Solidago howelllii Woot. & Standl. -- not accepted
  Solidago missouriensis var. tenuissima (Woot. & Standl.) C.E.S. Taylor & R.J. Taylor -- not accepted -- Missouri goldenrod
  Solidago neomexicana (A. Gray) Woot. & Standl. -- not accepted
  Solidago tenuissima Woot. & Standl. -- not accepted
  Sophia glabra Wooton & Standl. -- not accepted
  Sphaeralcea digitata ssp. tenuipes (Wooton & Standl.) Kearney -- accepted -- juniper globemallow
  Sphaeralcea digitata var. tenuipes (Wooton & Standl.) Kearney -- not accepted
  Sphaeralcea fendleri ssp. tripartita (Wooton & Standl.) Kearney -- accepted -- thicket globemallow
  Sphaeralcea fendleri var. tripartita (Wooton & Standl.) Kearney -- not accepted
  Sphaeralcea laxa Wooton & Standl. -- accepted -- caliche globemallow
  Sphaeralcea subhastata ssp. pumila (Wooton & Standl.) Kearney -- not accepted
  Sphaeralcea subhastata var. pumila (Wooton & Standl.) Kearney -- not accepted
  Stellaria americana (Porter ex B.L. Rob.) Standl. -- accepted -- American chickweed
  Stenaria nigricans var. floridana (Standl.) Terrell -- accepted -- Florida diamondflowers
  Stenocereus yunckeri (Standl.) P.V. Heath -- not accepted
  Stutzia covillei (Standl.) E.H. Zacharias -- accepted -- Coville's orach
  Suaeda californica var. taxifolia (Standl.) Munz -- not accepted
  Suaeda mexicana (Standl.) Standl. -- accepted -- Mexican seepweed
  Suaeda ramosissima (Standl.) I.M. Johnst. -- not accepted
  Suaeda tampicensis (Standl.) Standl. -- accepted -- coastal seepweed
  Suaeda taxifolia (Standl.) Standl. -- accepted -- woolly seablite
  Suaeda taxifolia ssp. brevifolia (Standl.) Abrams -- not accepted
  Suaeda torreyana var. ramosissima (Standl.) Munz -- not accepted
  Tachigali versicolor Standl. & L.O. Williams -- accepted
  Talinum angustissimum (Engelm.) Wooton & Standl. -- not accepted
  Talinum chrysanthum Rose & Standl. -- not accepted -- Trans-Pecos fameflower
  Talinum longipes Wooton & Standl. -- not accepted -- pink fameflower
  Talinum pulchellum Wooton & Standl. -- not accepted -- showy fameflower
  Teloxys vagans (Standl.) W.A. Weber -- not accepted
  Tephrosia latidens (Small) Standl. -- not accepted
  Tetraclea coulteri var. angustifolia (Wooton & Standl.) A. Nelson & J.F. Macbr. -- not accepted
  Thelypodium vernale Wooton & Standl. -- not accepted
  Therorhodion glandulosum Standl. ex Small -- accepted -- glandular Kamchatka rhododendron
  Tidestromia Standl. -- accepted -- honeysweet
  Tidestromia lanuginosa (Nutt.) Standl. -- accepted -- honeymat, woolly tidestromia
  Tidestromia oblongifolia (S. Watson) Standl. -- not accepted -- Arizona honeysweet, honeysweet tidestromia
  Tidestromia oblongifolia ssp. oblongifolia (S. Watson) Standl. -- not accepted -- Arizona honeysweet
  Tidestromia suffruticosa (Torr.) Standl. -- accepted -- shrubby honeysweet, shrubby tidestromia
  Tidestromia suffruticosa var. suffruticosa (Torr.) Standl. -- accepted -- shrubby honeysweet
  Tiquilia gossypina (Wooton & Standl.) A.T. Richardson -- accepted -- Texas crinklemat
  Tithymalopsis strictior (Holz.) Wooton & Standl. -- not accepted
  Tithymalus altus (Norton) Wooton & Standl. -- not accepted
  Tithymalus chamaesula (Boiss.) Wooton & Standl. -- not accepted
  Tithymalus luridus (Engelm.) Wooton & Standl. -- not accepted
  Tithymalus mexicanus (Engelm.) Wooton & Standl. -- not accepted
  Tithymalus portulacoides (L.) Standl. -- not accepted
  Tontanea herbacea (Aubl.) Standl. -- not accepted
  Torrubia fragrans (Dum. Cours.) Standl. -- not accepted
  Trichantha venusta (Standl.) Wiehler -- not accepted
  Tridens albescens (Vasey) Wooton & Standl. -- accepted -- white tridens
  Tridens grandiflora (Vasey) Wooton & Standl. -- not accepted
  Tridens grandiflorus (Vasey) Wooton & Standl. -- not accepted
  Tridens nealleyi (Vasey) Wooton & Standl. -- not accepted
  Trifolium longicaule Wooton & Standl. -- not accepted
  Trifolium willdenovii var. longicaule (Wooton & Standl.) L.D. Benson -- not accepted
  Trifolium willdenowii var. longicaule (Wooton & Standl.) L.D. Benson -- not accepted
  Trifolium wormskioldii var. longicaule (Wooton & Standl.) L.D. Benson -- not accepted
  Trionum trionum (L.) Wooton & Standl. -- not accepted
  Tripterocalyx carnea var. wootonii (Standl.) L.A. Galloway -- not accepted -- Wooton's sandpuffs
  Tripterocalyx carneus var. wootonii (Standl.) L.A. Galloway -- not accepted -- Wooton's sandpuffs
  Tripterocalyx crux-maltae (Kellogg) Standl. -- accepted -- Lassen sand verbena
  Tripterocalyx cyclopterus Standl. -- not accepted
  Tripterocalyx pedunculatus (M.E. Jones) Standl. -- not accepted
  Tripterocalyx wootonii Standl. -- accepted -- Wooton's sandpuffs
  Valerioa costaricensis Standl. & Steyerm. -- not accepted
  Vantanea barbourii Standl. -- accepted
  Vauquelinia californica ssp. pauciflora (Standl.) W.J. Hess & Henrickson -- accepted -- Arizona rosewood, limestone rosewood
  Vauquelinia pauciflora Standl. -- not accepted
  Verbena imbricata Wooton & Standl. -- not accepted
  Verbesina oreophila Woot. & Standl. -- accepted -- mountain crownbeard
  Veronica micromera Wooton & Standl. -- not accepted
  Veronica micromeria Wooton & Standl. -- not accepted
  Viorna ridgwayi Standl. -- not accepted
  Wedelia cristata Standl. -- not accepted
  Wootonella nana (A. Gray) Standl. -- not accepted
  Xanthisma viscidum (Woot. & Standl.) D.R. Morgan & R.L. Hartm. -- accepted -- sticky tansyaster
  Yucca baileyi Wooton & Standl. -- accepted -- Navajo yucca
  Yucca baileyi var. baileyi Wooton & Standl. -- not accepted -- Bailey yucca, Bailey's yucca, Navajo yucca
  Yucca harrimaniae var. neomexicana (Wooton & Standl.) Reveal -- not accepted -- New Mexico Spanish bayonet
  Yucca neomexicana Wooton & Standl. -- accepted -- New Mexico Spanish bayonet
  Zamia herrerae S. Calderón & Standl. -- accepted
  Zuckia Standl. -- not accepted
  Zuckia arizonica Standl. -- not accepted
  Zuckia brandegeei var. arizonica (Standl.) S.L. Welsh -- not accepted -- Arizona siltbush, siltbush
  Zygophyllidium bilobatum (Engelm.) Standl. -- not accepted
  Zygophyllidium delicatulum Wooton & Standl. -- not accepted
  Zygophyllidum delicatulum (Boiss.) Wooton & Standl. -- not accepted
  Zygophyllidum exstipulatum (Engelm.) Wooton & Standl. -- not accepted
   

A gray bar