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Taxon author: Benth.

ITIS records citing taxon author "Benth."
 
 Kingdom Animalia
  Mus ramnadensis Bentham, 1908 -- invalid
 
 Kingdom Plantae
  Abronia gracilis Benth. -- accepted -- slender sand verbena
  Abutilon californicum auct. non Benth. -- not accepted
  Acacia abyssinica Hochst. ex Benth. -- accepted
  Acacia aciphylla Benth. -- accepted
  Acacia acuminata Benth. -- accepted
  Acacia aneura F. Muell. ex Benth. -- accepted -- mulga
  Acacia auriculiformis A. Cunn. ex Benth. -- accepted -- auri, blackwattle, Darwin black wattle, earleaf acacia, Papuan wattle, tuhkehn pweimau
  Acacia berlandieri Benth. -- not accepted -- Berlandier's acacia, guajillo
  Acacia brachybotrya Benth. -- accepted -- gray mulga
  Acacia cardiophylla A. Cunn. ex Benth. -- accepted -- wyalong wattle
  Acacia choriophylla Benth. -- not accepted -- cinnecord, Florida acacia
  Acacia colletioides A. Cunn. ex Benth. -- accepted
  Acacia constricta Benth. -- not accepted -- mescat acacia, white twinthorn acacia, whitethorn acacia
  Acacia constricta var. constricta Benth. -- not accepted -- whitethorn, whitethorn acacia
  Acacia continua Benth. -- accepted -- thorn wattle
  Acacia elata A. Cunn. ex Benth. -- accepted -- cedar wattle
  Acacia emoryana Benth. -- not accepted -- Emory acacia
  Acacia gerrardii Benth. -- not accepted
  Acacia gladiiformis A. Cunn. ex Benth. -- accepted
  Acacia greggii var. wrightii (Benth.) Isely -- not accepted -- catclaw acacia, Wright's acacia, Wright's catclaw
  Acacia hakeoides A. Cunn. ex Benth. -- accepted
  Acacia hemiteles Benth. -- accepted
  Acacia homalophylla A. Cunn. ex Benth. -- not accepted
  Acacia implexa Benth. -- accepted -- screw-pod wattle
  Acacia iteaphylla F. Muell. ex Benth. -- accepted
  Acacia ixiophylla Benth. -- accepted
  Acacia latifolia Benth. -- accepted
  Acacia leiophylla Benth. -- accepted
  Acacia ligulata A. Cunn. ex Benth. -- accepted -- acacia
  Acacia malacophylla Benth. -- not accepted
  Acacia mellifera (Vahl) Benth. -- accepted
  Acacia microbotrya Benth. -- accepted
  Acacia montana Benth. -- not accepted
  Acacia multispicata Benth. -- accepted
  Acacia neriifolia A. Cunn. ex Benth. -- accepted
  Acacia omalophylla A. Cunn. ex Benth. -- accepted -- yarran
  Acacia papyrocarpa Benth. -- accepted
  Acacia pennatula (Schltdl. & Cham.) Benth. -- not accepted -- fern-leaf acacia, tepame
  Acacia pravissima F. Muell. ex Benth. -- accepted -- wedge-leaf wattle
  Acacia pruinosa A. Cunn. ex Benth. -- accepted -- frosty wattle
  Acacia pycnantha Benth. -- accepted -- golden wattle
  Acacia rigidula Benth. -- not accepted -- blackbrush acacia, chaparro prieto
  Acacia rupicola F. Muell. ex Benth. -- accepted
  Acacia spectabilis A. Cunn. ex Benth. -- accepted -- glory wattle, mudgee wattle
  Acacia stenophylla A. Cunn. ex Benth. -- accepted -- Dalby myall, river cooba, river myall
  Acacia sublanata Benth. -- accepted
  Acacia urophylla Benth. ex Lindl. -- accepted
  Acacia victoriae Benth. -- accepted -- acacia, bramble acacia, bramble wattle
  Acacia viscidula Benth. -- accepted
  Acacia wattsiana F. Muell. ex Benth. -- accepted
  Acacia wrightii Benth. -- not accepted -- Texas catclaw, Wright's acacia, Wright's catclaw
  Acacia xanthophloea Benth. -- not accepted -- fevertree
  Acaciopsis rigidula (Benth.) Britton & Rose -- not accepted
  Acalypha californica Benth. -- accepted -- California copperleaf, Pringle threeseeded mercury
  Achimenes mexicana (Seem.) Benth. & Hook. f. ex Fritsch -- accepted
  Achimenes patens Benth. -- accepted
  Achimenes pedunculata Benth. -- accepted
  Achimenes picta Benth. ex Hook. -- not accepted
  Achneria Munro ex Benth. & Hook. f. -- not accepted
  Aciachne Benth. -- accepted
  Aciachne pulvinata Benth. -- accepted
  Acleisanthes wrightii (A. Gray) Benth. & Hook. f. ex Hemsl. -- accepted -- Wright's trumpets
  Acmispon cytisoides (Benth.) Brouillet -- accepted -- Bentham's broom
  Acmispon grandiflorus (Benth.) Brouillet -- accepted -- chaparral bird's-foot trefoil
  Acmispon grandiflorus var. grandiflorus (Benth.) Brouillet -- accepted -- chaparral bird's-foot trefoil
  Acmispon humistratus (Benth.) D.D. Sokoloff -- accepted -- foothill deervetch
  Acmispon junceus (Benth.) Brouillet -- accepted -- rush broom
  Acmispon junceus var. junceus (Benth.) Brouillet -- accepted -- rush broom
  Acmispon parviflorus (Benth.) D.D. Sokoloff -- accepted -- desert deervetch
  Acmispon rigidus (Benth.) Brouillet -- accepted -- shrubby deervetch
  Aeschynomene histrix var. incana Benth. -- accepted -- porcupine jointvetch
  Aeschynomene rudis Benth. -- accepted -- rough jointvetch, zigzag jointvetch
  Agalinis aspera (Douglas ex Benth.) Britton -- accepted -- rough foxglove, tall false foxglove
  Agalinis densiflora (Benth.) S.F. Blake -- accepted -- Osage false foxglove
  Agalinis filicaulis (Benth.) Pennell -- accepted -- Jackson false foxglove
  Agalinis grandiflora (Benth.) S.F. Blake -- not accepted
  Agalinis grandiflora var. serrata (Torr. ex Benth.) S.F. Blake -- not accepted
  Agalinis maritima var. grandiflora (Benth.) Shinners -- accepted -- saltmarsh false foxglove
  Agalinis purpurea var. parviflora (Benth.) B. Boivin -- accepted -- smallflower false foxglove
  Agalinis strictifolia (Benth.) Pennell -- accepted -- stiffleaf false foxglove
  Agalinis tenuifolia var. macrophylla (Benth.) S.F. Blake -- not accepted -- slenderleaf false foxglove
  Agastache urticifolia (Benth.) Kuntze -- accepted -- horsemint giant hyssop, nettleleaf giant hyssop
  Agastache urticifolia var. urticifolia (Benth.) Kuntze -- accepted -- nettleleaf giant hyssop
  Agoseris retrorsa (Benth.) Greene -- accepted -- spearleaf agoseris
  Agrostis sesquivalvis E. Desv. ex Benth. -- not accepted
  Aikinia carnosa (Benth.) G. Don -- not accepted
  Aklema colletioides (Benth.) Millsp. -- not accepted
  Albizia ferruginea (Guill. & Perr.) Benth. -- accepted -- albizia
  Albizia lebbeck (L.) Benth. -- accepted -- lebbek, raom tree, siris tree, soros-tree, woman's tongue, woman's-tongue tree
  Albizia lebbekoides (DC.) Benth. -- accepted -- Indian albizia
  Albizia lophantha (Willd.) Benth. -- not accepted
  Albizia montana (Jungh.) Benth. -- not accepted
  Albizia odoratissima (L. f.) Benth. -- accepted -- albizia
  Albizia procera (Roxb.) Benth. -- accepted -- tall albizia
  Alchornea glandulosa var. floribunda Benth. -- not accepted
  Alchornea tiliifolia (Benth.) Müll. Arg. -- accepted
  Alchorneopsis floribunda (Benth.) Müll. Arg. -- accepted -- palo de gallina
  Allium scaposum Benth. -- not accepted
  Allophyllum gilioides (Benth.) A.D. Grant & V.E. Grant -- accepted -- blue false gilia, dense false gily-flower, dense false gilyflower
  Allophyllum gilioides ssp. gilioides (Benth.) A.D. Grant & V.E. Grant -- accepted -- dense false gilia, dense false gilyflower
  Allophyllum glutinosum (Benth.) A.D. Grant & V.E. Grant -- accepted -- sticky false gilyflower
  Alloplectus dimidiatus Benth. -- not accepted
  Alloplectus tenuis Benth. -- not accepted
  Alphitonia excelsa (Fenzl) Reissek ex Benth. -- accepted
  Alsophila brevipinna (Baker ex Benth.) R.M. Tryon -- not accepted
  Amaranthus fimbriatus (Torr.) Benth. ex S. Watson -- accepted -- fringed amaranth, fringed pigweed
  Amaranthus fimbriatus var. fimbriatus (Torr.) Benth. ex S. Watson -- not accepted -- fringed amaranth, fringed pigweed
  Amaranthus torreyi (A. Gray) Benth. ex S. Watson -- accepted -- Torrey's amaranthus
  Amaranthus torreyi auct. non (A. Gray) Benth. ex S. Watson -- not accepted
  Amaranthus torreyi auct. non (A. Gray) Benth. ex S. Watson -- not accepted
  Ambrosia chenopodiifolia (Benth.) Payne -- accepted -- San Diego bur ragweed, San Diego burr ragweed, San Diego bursage
  Ammophila brevipilis (Torr.) Benth. ex Vasey -- not accepted
  Anadenanthera falcata (Benth.) Speg. -- not accepted
  Anaphalis margaritacea (L.) Benth. -- accepted -- common pearlyeverlasting, pearly everlasting, pearly-everlasting, western pearly everlasting, western pearlyeverlasting
  Andropogon leptostachyus Benth. -- not accepted
  Andropogon schoenanthus var. martini (Roxb.) Benth. -- not accepted
  Andropogon semiberbis subvar. leptostachyus (Benth.) Hack. -- not accepted
  Anetanthus Hiern ex Benth. -- accepted
  Anetanthus alatus (Cham. & Schltdl.) Benth. & Hook. f. ex E.A. Durand & B.D. Jacks. -- not accepted
  Anetanthus villosus (Gardner) Benth. ex Jacks. -- not accepted
  Angelonia angustifolia Benth. -- accepted -- narrowleaf angelon
  Anisophyllum convolvuloides (Hochst. ex Benth.) Klotzsch & Garcke -- not accepted
  Anodiscus peruvianus Benth. -- not accepted
  Antennaria argentea Benth. -- accepted -- silver pussytoes, silvery pussytoes
  Antennaria luzuloides var. argentea (Benth.) A. Gray -- not accepted
  Anthaenantia lanata (Kunth) Benth. -- accepted
  Anthaenantia lanata var. lanata (Kunth) Benth. -- not accepted
  Anthaenantia lanatum (Kunth) Benth. -- not accepted
  Anthenantia lanata (Kunth) Benth. -- not accepted
  Anticlea volcanica (Benth.) Baker -- accepted
  Antirrhinum cornutum Benth. -- not accepted
  Antirrhinum coulterianum Benth. ex A. DC. -- not accepted
  Antirrhinum cyathiferum Benth. -- not accepted
  Antirrhinum nuttallianum Benth. ex A. DC. -- not accepted
  Antirrhinum nuttallianum ssp. nuttallianum Benth. ex A. DC. -- not accepted -- snapdragon
  Aphanostephus humilis (Benth.) A. Gray -- not accepted
  Aphanostephus ramosissimus var. humilis (Benth.) B.L. Turner & Birdsong -- accepted -- plains doze daisy, plains dozedaisy
  Apium echinatum (Nutt. ex DC.) Benth. & Hook. f. ex S. Watson -- not accepted
  Apium leptophyllum (Pers.) F. Muell. ex Benth. -- not accepted
  Aquilaria grandiflora Benth. -- not accepted
  Arachis glabrata Benth. -- accepted -- peanut, rhizoma peanut
  Arachis prostrata Benth. -- accepted -- grassnut
  Arachis pusilla Benth. -- accepted
  Arachis villosa Benth. -- accepted
  Argythammia lanceolata (Benth.) Müll. Arg. -- not accepted
  Argythamnia lanceolata (Benth.) Müll. Arg. -- not accepted -- lanceleaf ditaxis, narrowleaf silverbush
  Argythamnia mercurialina var. pilosissima (Benth.) Shinners -- not accepted -- tall silverbush, tall wildmercury
  Aristolochia brevipes auct. non Benth. -- not accepted
  Arnica discoidea Benth. -- accepted -- rayless arnica
  Arthraxon ciliaris var. australis Benth. -- not accepted
  Arthraxon ciliaris var. tenellus Benth. -- not accepted
  Arundo altissima Benth. -- not accepted
  Asclepias cordifolia (Benth.) Jeps. -- accepted -- heartleaf milkweed, purple milkweed
  Asclepias elata Benth. -- accepted -- nodding milkweed
  Asclepias eriocarpa Benth. -- accepted -- Indian milkweed, kotolo, woollypod milkweed
  Aspicarpa humilis (Benth.) A. Juss. -- not accepted
  Aster spinosus Benth. -- not accepted
  Astragalus coulteri Benth. -- not accepted
  Astragalus crotalariae (Benth.) A. Gray -- accepted -- rattlebox milkvetch, Salton milkvetch
  Astragalus hartwegii Benth. -- accepted -- Hartweg's milkvetch
  Astragalus lentiginosus var. coulteri (Benth.) M.E. Jones -- not accepted
  Astragalus polaris (Seem.) Benth. ex Hook. f. -- accepted -- polar milkvetch
  Astragalus tibetanus Benth. ex Bunge -- accepted -- Tibet milkvetch
  Athroostachys Benth. -- accepted
  Athroostachys capitata (Hook.) Benth. -- accepted
  Atriplex barclayana (Benth.) D. Dietr. -- accepted -- Barclay's saltbush
  Atriplex muelleri Benth. -- accepted -- Mueller's saltbush
  Atriplex tetraptera (Benth.) Rydb. -- not accepted
  Atriplex vesicaria Heward ex Benth. -- accepted -- aboriginal saltbush
  Atylosia marmorata R. Br. ex Benth. -- not accepted
  Atylosia scarabaeoides (L.) Benth. -- not accepted
  Aureolaria grandiflora (Benth.) Pennell -- accepted -- largeflower yellow false foxglove
  Aureolaria grandiflora ssp. serrata (Torr. ex Benth.) Pennell -- not accepted
  Aureolaria grandiflora var. grandiflora (Benth.) Pennell -- not accepted -- largeflower yellow false foxglove
  Aureolaria grandiflora var. serrata (Torr. ex Benth.) Pennell -- not accepted -- largeflower yellow false foxglove
  Bahia absinthifolia Benth. -- accepted -- hairyseed bahia
  Bahia absinthifolia var. absinthifolia Benth. -- not accepted -- hairy-seed false goldfields, hairyseed bahia
  Banksia polycephala (Benth.) A.R. Mast & K.R. Thiele -- accepted
  Bauhinia macranthera Benth. ex Hemsl. -- accepted
  Bebbia (Benth.) Greene -- accepted -- bebbia, sweetbush
  Bebbia juncea (Benth.) Greene -- accepted -- sweetbush, sweetbush bebbia
  Bebbia juncea var. aspera (Benth.) Greene -- accepted -- bebbia, sweetbush
  Bebbia juncea var. juncea (Benth.) Greene -- accepted -- sweetbush
  Beloperone californica Benth. -- not accepted
  Berginia virgata Harv. ex Benth. & Hook. f. -- not accepted
  Berlandiera lyrata Benth. -- accepted -- greeneyes, lyreleaf greeneyes
  Bertya opponens (F. Muell. ex Benth.) Guymer -- accepted
  Besleria acutifolia Benth. -- not accepted
  Besleria hirsutissima (Benth.) Fritsch -- not accepted
  Besleria laxiflora Benth. -- accepted
  Besleria quitensis (Benth.) Hanst. -- not accepted
  Bifora americana Benth. & Hook. f. ex S. Watson -- accepted -- prairie bishop
  Blephilia ciliata (L.) Benth. -- accepted -- downy blephilia, downy pagoda-plant
  Blephilia hirsuta (Pursh) Benth. -- accepted -- hairy pagoda-plant
  Blephilia hirsuta var. hirsuta (Pursh) Benth. -- accepted -- hairy pagoda-plant
  Bouteloua chondrosioides (Kunth) Benth. ex S. Watson -- accepted -- sprucetop grama
  Bouteloua disticha (Kunth) Benth. -- accepted
  Bouteloua pilosa (Hook. f.) Benth. ex S. Watson -- not accepted
  Bouteloua polystachya (Benth.) Torr. -- not accepted
  Bouteloua polystachya var. polystachya (Benth.) Torr. -- not accepted
  Brachiaria piligera (F. Muell. ex Benth.) Hughes -- not accepted -- wattle signalgrass
  Brachiaria subquadripara var. piligera (F. Muell. ex Benth.) Reeder -- not accepted
  Brachyloma erianthum (Benth.) Hanst. -- not accepted
  Brachyloma incurvum (Benth.) Oerst. -- not accepted
  Brachyloma longipes (Benth.) Hanst. -- not accepted
  Brachyloma petiolare (Benth.) Oerst. -- not accepted
  Brachyloma rhynchocarpum (Benth.) Oerst. -- not accepted
  Brachyloma vestitum (Benth.) Hanst. -- not accepted
  Brachypodium cespitosum var. phoenicoides (L.) Benth. -- not accepted
  Bradburya pubescens (Benth.) Kuntze -- not accepted
  Brazoria truncata (Benth.) Engelm. & A. Gray -- accepted -- rattlesnake flower
  Brazoria truncata var. truncata (Benth.) Engelm. & A. Gray -- accepted -- rattlesnake flower
  Brizopyrum prostratum (Kunth) Benth. ex E. Fourn. -- not accepted
  Brodiaea capitata Benth. -- not accepted
  Brodiaea grandiflora var. minor Benth. -- not accepted
  Brodiaea laxa (Benth.) S. Watson -- not accepted
  Brodiaea minor (Benth.) S. Watson -- accepted -- vernalpool brodiaea
  Brodiaea multiflora Benth. -- not accepted
  Brunfelsia hopeana (Hook.) Benth. -- not accepted
  Brunfelsia nitida Benth. -- accepted -- Cuban raintree
  Brunfelsia pauciflora (Cham. & Schltdl.) Benth. -- accepted
  Brunfelsia pauciflora var. calycina (Benth.) J.A. Schmidt -- not accepted
  Buchnera obliqua Benth. -- accepted -- Arizona bluehearts
  Buddleja marrubiifolia Benth. -- accepted -- woolly butterflybush
  Buttonia McKen ex Benth. -- accepted
  Caesalpinia oxycarpa (Benth.) Fisher -- not accepted
  Caiandra Benth. -- not accepted
  Caiandra conferta Benth. -- not accepted
  Caiandra eriophylla Benth. -- not accepted
  Caiandra humilis Benth. -- not accepted
  Cajanus marmoratus (R. Br. ex Benth.) F. Muell. -- accepted
  Calamintha canescens Torr. & A. Gray ex Benth. -- not accepted
  Calamintha coccinea (Nutt. ex Hook.) Benth. -- not accepted -- scarlet calamint
  Calamintha glabella (Michx.) Benth. -- not accepted -- Ozark calamint
  Calamintha gracilis Benth. -- not accepted -- slender wild basil
  Calliandra Benth. -- accepted -- false mesquite, stickpea
  Calliandra californica Benth. -- accepted -- tabardillo, zapotillo
  Calliandra conferta Benth. -- accepted -- false mesquite, Rio Grande stickpea
  Calliandra cumingii Benth. -- not accepted -- Cuming's stickpea
  Calliandra eriophylla Benth. -- accepted -- fairyduster, false mesquite
  Calliandra eriophylla var. eriophylla Benth. -- not accepted -- fairyduster, false mesquite
  Calliandra haematomma (Bertero ex DC.) Benth. -- accepted -- red powderpuff
  Calliandra haematomma var. haematomma (Bertero ex DC.) Benth. -- accepted -- red powderpuff
  Calliandra humilis Benth. -- accepted -- dwarf stickpea, mountain calliandra
  Calliandra humilis var. humilis Benth. -- accepted -- dwarf guajilla, dwarf stickpea
  Calliandra laxa (Willd.) Benth. -- accepted -- Cuming's stickpea
  Calliandra portoricensis (Jacq.) Benth. -- not accepted -- white stickpea
  Calliandra purpurea (L.) Benth. -- accepted -- purple stickpea
  Calliandra surinamensis Benth. -- accepted -- Surinamese stickpea
  Callistemon salignus var. australis Benth. -- not accepted
  Calochortus albus Douglas ex Benth. -- accepted -- white fairy-lantern
  Calochortus pulchellus Douglas ex Benth. -- accepted -- Mount Diablo fairy-lantern
  Calochortus splendens Douglas ex Benth. -- accepted -- desert senna, splendid mariposa lily
  Calochortus venustus Douglas ex Benth. -- accepted -- butterfly mariposa lily
  Calophyllum lucidum Benth. -- not accepted
  Calopogonium caeruleum (Benth.) C. Wright -- accepted -- jicama
  Calopogonium galactioides (Kunth) Benth. ex Hemsl. -- accepted
  Calothamnus quadrifidus f. obtusus Benth. -- not accepted
  Calylophus hartwegii (Benth.) P.H. Raven -- not accepted -- Hartweg's sundrops
  Calylophus hartwegii ssp. hartwegii (Benth.) P.H. Raven -- not accepted -- Hartweg's sundrops
  Calytophus hartwegii (Benth.) P.H. Raven -- not accepted
  Calytophus hartwegii var. hartwegii (Benth.) P.H. Raven -- not accepted
  Calytrix brachyphylla (Turcz.) Benth. -- not accepted
  Calytrix leschenaultii (Schauer) Benth. -- accepted
  Campylocentrum Benth. -- accepted -- bentspur orchid
  Campylocentrum jamaicense (Rchb. f.) Benth. -- accepted
  Canavalia brasiliensis Mart. ex Benth. -- accepted -- Brazilian jackbean
  Capraria mexicana Moric. ex Benth. -- accepted -- Tamaulipan tea
  Caragana brevispina Royle ex Benth. -- accepted
  Carum copticum (L.) Benth. & Hook. f. ex C.B. Clarke -- not accepted
  Carum petroselinum (L.) Benth. & Hook. f. -- not accepted
  Cassia aciphylla Benth. -- not accepted
  Cassia brewsteri (F. Muell.) F. Muell. ex Benth. -- accepted -- Leichardt-bean
  Cassia circinnata Benth. -- not accepted
  Cassia coronilloides Benth. -- not accepted
  Cassia corymbosa var. plurijuga Benth. -- not accepted
  Cassia latistipula Benth. -- not accepted
  Cassia leptocarpa Benth. -- not accepted
  Cassia leschenaultiana var. aeschinomene (DC. ex Collad.) Benth. -- not accepted
  Castanopsis chrysophylla var. minor (Benth.) A. DC. -- not accepted
  Castilleja angustifolia var. hispida (Benth.) Fernald -- not accepted
  Castilleja campestris (Benth.) T.I. Chuang & Heckard -- accepted -- vernal pool Indian paintbrush
  Castilleja campestris ssp. campestris (Benth.) T.I. Chuang & Heckard -- accepted -- vernal pool Indian paintbrush
  Castilleja densiflora (Benth.) T.I. Chuang & Heckard -- accepted -- denseflower Indian paintbrush
  Castilleja densiflora ssp. densiflora (Benth.) T.I. Chuang & Heckard -- accepted -- denseflower Indian paintbrush
  Castilleja densiflora ssp. gracilis (Benth.) T.I. Chuang & Heckard -- accepted -- denseflower Indian paintbrush
  Castilleja douglasii Benth. -- not accepted
  Castilleja hispida Benth. -- accepted -- harsh Indian paintbrush
  Castilleja hispida ssp. hispida Benth. -- accepted -- harsh Indian paintbrush
  Castilleja lacera (Benth.) T.I. Chuang & Heckard -- accepted -- cutleaf Indian paintbrush
  Castilleja linariifolia Benth. -- accepted -- Wyoming Indian paintbrush, Wyoming paintbrush
  Castilleja lineariiloba (Benth.) T.I. Chuang & Heckard -- accepted -- sagebrush Indian paintbrush
  Castilleja rubicundula ssp. lithospermoides (Benth.) T.I. Chuang & Heckard -- accepted -- cream sacs
  Castilleja tenuiflora Benth. -- accepted -- Catalina Indian paintbrush, Santa Catalina Indian paintbrush
  Ceanothus prostratus Benth. -- accepted -- prostrate ceanothus, squawcarpet
  Ceanothus prostratus ssp. prostratus Benth. -- not accepted -- squawcarpet
  Cenchrus pauciflorus Benth. -- not accepted -- field sandbur, sandbur
  Cenchrus pauciflorus var. pauciflorus Benth. -- not accepted
  Centaurium floribundum (Benth.) B.L. Rob. -- not accepted
  Centrosema (DC.) Benth. -- accepted -- butterfly pea
  Centrosema arenarium Benth. -- accepted
  Centrosema macrocarpum Benth. -- accepted
  Centrosema molle Mart. ex Benth. -- accepted -- soft butterfly pea
  Centrosema plumieri (Turpin ex Pers.) Benth. -- accepted -- feefee
  Centrosema pubescens Benth. -- accepted -- flor de conchitas
  Centrosema virginianum (L.) Benth. -- accepted -- butterflypea, spurred butterfly pea
  Centrosolenia glabra Benth. -- not accepted
  Centrosolenia hirsuta Benth. -- not accepted
  Centrostegia A. Gray ex Benth. -- accepted
  Centrostegia thurberi A. Gray ex Benth. -- accepted -- red triangles, spring flower
  Cephalanthus occidentalis var. californicus Benth. -- not accepted
  Ceranthera densiflora (Benth.) A. Gray -- not accepted
  Cercidium floridum Benth. ex A. Gray -- not accepted
  Chaetium bromoides (J. Presl) Benth. ex Hemsl. -- accepted
  Chamaebatia Benth. -- accepted -- mountain misery
  Chamaebatia foliolosa Benth. -- accepted -- mountain misery
  Chamaecrista desvauxii var. latistipula (Benth.) G.P. Lewis -- not accepted
  Chamaesaracha (A. Gray) Benth. -- accepted -- five eyes
  Chamaesyce filipes (Benth.) D.C. Hassall -- not accepted
  Chamaesyce leucophylla (Benth.) Millsp. -- not accepted
  Chamaesyce magdalenae (Benth.) Millsp. -- not accepted
  Chamaesyce polycarpa (Benth.) Millsp. -- not accepted -- manyfruit spurge, small-seed sandmat, smallseed sandmat
  Chamaesyce polycarpa var. polycarpa (Benth.) Millsp. -- not accepted -- smallseed sandmat
  Chamaesyce schultzii (Benth.) D.C. Hassall -- not accepted
  Chamaesyce zambesiana (Benth.) Koutnik -- not accepted
  Cheilosandra leptopus Griff. ex Benth. & Hook. f. -- not accepted
  Chionachne macrophylla (Benth.) Clayton -- accepted
  Chionophila Benth. -- accepted -- snowlover
  Chionophila jamesii Benth. -- accepted -- Rocky Mountain snowlover
  Chloracantha spinosa (Benth.) G.L. Nesom -- accepted -- devilweed aster, Mexican devilweed, spiny aster, spiny chloracantha
  Chloracantha spinosa var. spinosa (Benth.) G.L. Nesom -- not accepted
  Chloris barbata var. decora (Nees ex Steud.) Benth. -- not accepted
  Chloris breviseta Benth. -- not accepted
  Chloris pectinata Benth. -- accepted -- comb windmill grass
  Chloris ventricosa var. tenuis Benth. -- not accepted
  Chloris virgata var. breviseta (Benth.) Pilger ex Peter -- not accepted
  Chlorophora excelsa (Welw.) Benth. -- not accepted -- African teak
  Chlorophora tinctoria (L.) Gaudich. ex Benth. & Hook. f. -- not accepted -- fustictree
  Chloropyron maritimum (Nutt. ex Benth.) A. Heller -- accepted -- saltmarsh bird's-beak
  Chloropyron maritimum ssp. maritimus Nutt. ex Benth. -- accepted -- saltmarsh bird's-beak
  Chondrosium polystachyum Benth. -- not accepted
  Chondrosum polystachyum Benth. -- not accepted
  Chorisanthera hispida (Benth.) Oerst. -- not accepted
  Chorizanthe R. Br. ex Benth. -- accepted -- spineflower
  Chorizanthe californica (Benth.) A. Gray -- not accepted
  Chorizanthe diffusa Benth. -- accepted -- diffuse spineflower
  Chorizanthe douglasii Benth. -- accepted -- Douglas' spineflower, San Benito spineflower
  Chorizanthe douglasii var. hartwegii Benth. -- not accepted
  Chorizanthe membranacea Benth. -- accepted -- pink spineflower
  Chorizanthe pungens Benth. -- accepted -- Monterey spineflower
  Chorizanthe pungens var. hartwegii (Benth.) Goodman -- not accepted
  Chorizanthe pungens var. pungens Benth. -- accepted -- Monterey spineflower
  Chorizanthe robusta var. hartwegii (Benth.) Reveal & R. Morgan -- accepted -- robust spineflower
  Chorizanthe staticoides Benth. -- accepted -- Turkish rugging
  Chorizanthe stellulata Benth. -- accepted -- starlet spineflower
  Chorizanthe thurberi (A. Gray ex Benth.) S. Watson -- not accepted
  Chrysolepis chrysophylla var. minor (Benth.) Munz -- accepted -- giant chinquapin
  Chrysopogon avenaceus (Michx.) Benth. -- not accepted
  Chrysopogon minarum (Nees) Benth. -- not accepted
  Chrysopogon nigritanus (Benth.) Veldkamp -- accepted
  Chrysopogon nutans (L.) Benth. -- not accepted
  Chrysopogon pauciflorus (Chapm.) Benth. ex Vasey -- accepted -- Florida false beardgrass
  Chrysopogon secundus (Elliott) Benth. ex Vasey -- not accepted
  Chrysopogon stipoides Benth. -- not accepted
  Chrysopsis echioides Benth. -- not accepted
  Chrysopsis sessiliflora var. echioides (Benth.) A. Gray -- not accepted
  Chrysopsis villosa var. echioides (Benth.) A. Gray -- not accepted
  Chrysothemis rupestris (Benth.) Leeuwenb. -- accepted
  Chrysothemis villosa (Benth.) Leeuwenb. -- not accepted
  Cladium restioides (Sw.) Benth. -- not accepted
  Clematis filifera Benth. -- not accepted
  Clematis microphylla var. leptophylla F. Muell. ex Benth. -- accepted
  Clematis pitcheri var. filifera (Benth.) B.L. Rob. ex A. Gray -- not accepted
  Clinopodium douglasii (Benth.) Kuntze -- not accepted -- yerba buena
  Clinopodium gracile (Benth.) Kuntze -- accepted -- slender wild basil
  Clinopodium mimuloides (Benth.) Kuntze -- accepted -- monkeyflower savory
  Cogswellia marginata (Benth.) M.E. Jones -- not accepted
  Coleus barbatus (Andrews) Benth. -- not accepted -- coleus
  Coleus blumei Benth. -- not accepted
  Coleus parviflorus Benth. -- not accepted
  Coleus scutellarioides (L.) Benth. -- not accepted -- common coleus
  Coleus tuberosus (Blume) Benth. -- not accepted
  Collinsia bartsiifolia Benth. -- accepted -- white blue eyed Mary
  Collinsia bartsiifolia var. bartsiifolia Benth. -- accepted -- white blue eyed Mary
  Collinsia tinctoria Hartw. ex Benth. -- accepted -- sticky Chinese houses
  Colophospermum mopane (Kirk ex Benth.) Kirk ex J. Léonard -- accepted -- balsam tree
  Columnea acuminata Benth. -- not accepted
  Columnea campanulata Benth. -- not accepted
  Columnea dimidiata (Benth.) Kuntze -- accepted
  Columnea eriantha (Benth.) Hanst. -- not accepted
  Columnea macrantha Benth. -- not accepted
  Columnea strigosa Benth. -- accepted
  Commelina nigritana Benth. -- accepted -- African dayflower
  Conobea multifida (Michx.) Benth. -- not accepted
  Conradia hispida Benth. -- not accepted
  Conradina canescens (Torr. & A. Gray ex Benth.) A. Gray -- accepted -- false rosemary
  Convolvulus equitans Benth. -- accepted -- gray bindweed, Texas bindweed
  Conyza coulteri var. virgata (Benth.) A. Gray -- not accepted
  Corallocarpus Welw. ex Benth. & Hook.f. -- accepted
  Cordylanthus Nutt. ex Benth. -- accepted -- bird's beak, bird's-beak
  Cordylanthus capitatus Nutt. ex Benth. -- accepted -- cluster bird'sbeak, Yakima bird's-beak
  Cordylanthus filifolius Nutt. ex Benth. -- not accepted
  Cordylanthus maritimus Nutt. ex Benth. -- not accepted -- saltmarsh bird's-beak, saltmarsh bird'sbeak
  Cordylanthus maritimus ssp. maritimus Nutt. ex Benth. -- not accepted -- salt marsh bird's beak, salt marsh bird's-beak
  Cordylanthus ramosus Nutt. ex Benth. -- accepted -- bushy bird's beak, bushy birdbeak, muchbranched bird'sbeak
  Cordylanthus rigidus (Benth.) Jeps. -- accepted -- stiffbranch bird's beak
  Cordylanthus rigidus ssp. rigidus (Benth.) Jeps. -- accepted -- stiffbranch bird's beak
  Coreocarpus Benth. -- accepted -- coreocarpus
  Corethrogyne californica var. obovata (Benth.) Kuntze -- not accepted -- California sandaster
  Corethrogyne filaginifolia var. virgata (Benth.) A. Gray -- not accepted -- common sandaster
  Corethrogyne obovata Benth. -- not accepted
  Cornus glabrata Benth. -- accepted -- brown dogwood, smooth dogwood
  Cracca Benth. -- not accepted
  Cracca caribaea (Jacq.) Benth. -- not accepted
  Crassocephalum crepidioides (Benth.) S. Moore -- accepted -- redflower ragleaf
  Crassocephalum vitellinum (Benth.) S. Moore -- accepted
  Cremosperma Benth. -- accepted
  Cremosperma hirsutissimum Benth. -- accepted
  Cremosperma hirsutissimum var. hirsutissimum Benth. -- accepted
  Crepis japonica (L.) Benth. -- not accepted
  Crossandra fascicularis auct. non Benth. -- not accepted
  Crotalaria assamica Benth. -- accepted -- Indian rattlebox
  Crotalaria atrorubens Hochst. ex Benth. -- accepted
  Crotalaria brachystachys Benth. -- not accepted
  Crotalaria brevidens Benth. -- accepted -- Ethiopian rattlebox
  Crotalaria brevidens var. brevidens Benth. -- not accepted -- Ethiopian rattlebox
  Crotalaria eriocarpa Benth. -- not accepted
  Crotalaria ferruginea Graham ex Benth. -- accepted
  Crotalaria filipes Benth. -- accepted
  Crotalaria guatemalensis Benth. -- not accepted
  Crotalaria zanzibarica Benth. -- not accepted -- West Indian rattlebox
  Croton adspersus Benth. -- accepted
  Croton argyrophyllus var. pubescens (Klotzsch ex Benth.) Müll. Arg. -- not accepted
  Croton asperrimus Benth. -- accepted
  Croton cajucara Benth. -- accepted
  Croton caryophyllus Benth. -- accepted
  Croton chinensis Benth. -- not accepted
  Croton essequiboensis Klotzsch ex Benth. -- accepted
  Croton hancei Benth. -- accepted
  Croton lachnocarpus Benth. -- accepted
  Croton leptostachyus var. malacophyllus (Benth.) Müll. Arg. -- not accepted
  Croton malacophyllus Benth. -- not accepted
  Croton marginatus A. Cunn. ex Benth. -- not accepted
  Croton menthodorus Benth. -- accepted
  Croton mollis Benth. -- accepted
  Croton opponens F. Muell. ex Benth. -- not accepted
  Croton phebalioides A. Cunn. ex Benth. -- not accepted
  Croton polycarpus Benth. -- not accepted
  Croton populifolius var. essequiboensis (Klotzsch ex Benth.) Müll. Arg. -- not accepted
  Croton pycnanthus Benth. -- accepted
  Croton rosmarinifolius A. Cunn. ex Benth. -- not accepted
  Croton schultzii Benth. -- accepted
  Croton sordidus Benth. -- not accepted
  Croton spruceanus Benth. -- accepted
  Crypsinna rigens (Benth.) M.E. Jones -- not accepted
  Cryptoloma rhynchocarpum (Benth.) Hanst. -- not accepted
  Cuscuta globulosa Benth. -- accepted -- West Indian dodder
  Cyathea brevipinna Baker ex Benth. -- accepted
  Cyathea brevipinnata Baker ex Benth. -- not accepted
  Cycladenia Benth. -- accepted -- waxy dogbane
  Cycladenia humilis Benth. -- accepted -- Sacramento waxy-dogbane, Sacramento waxydogbane
  Cycladenia humilis var. humilis Benth. -- accepted -- Sacramento waxydogbane
  Cycnium E. Mey. ex Benth. -- accepted
  Cynanchum ligulatum (Benth.) Woodson -- accepted -- Mexican swallow-wort, Mexican swallowwort, panegua
  Cynoglossum glochidiatum Wall. ex Benth. -- not accepted -- prickly hound's tongue
  Cynoglossum microglochin Benth. -- accepted -- smallbristle hound's tongue
  Cynoglossum wallichii var. glochidiatum (Wall. ex Benth.) Kazmi -- accepted
  Cyperus polystachyos var. laxiflorus Benth. -- not accepted
  Cyrtandra calycina Benth. -- accepted
  Cyrtandra calycina var. calycina Benth. -- accepted
  Cyrtandra latifolia Benth. -- not accepted
  Cyrtandra oblongifolia (Blume) Benth. & Hook. f. ex C.B. Clarke -- accepted
  Dalbergaria dimidiata (Benth.) Wiehler -- not accepted
  Dalbergia amerimnon Benth. -- not accepted
  Dalbergia calycina Benth. -- accepted
  Dalbergia emirnensis Benth. -- accepted
  Dalbergia emirnensis var. emirnensis Benth. -- accepted
  Dalbergia nigra (Vell.) Allemao ex Benth. -- accepted
  Dalea mollis Benth. -- accepted -- hairy prairie clover, soft dalea
  Danthonia racemosa var. penicillata (Labill.) Benth. -- not accepted
  Darmera peltata (Torr. ex Benth.) Voss -- accepted -- Indian rhubarb
  Dasistoma grandiflora (Benth.) Alph. Wood -- not accepted
  Dasistoma pectinata (Nutt.) Benth. -- not accepted
  Dasistoma pedicularia (L.) Benth. -- not accepted
  Dasistoma serrata (Torr. ex Benth.) Small -- not accepted
  Datura leichhardtii F. Muell. ex Benth. -- accepted -- Leichhardt's datura
  Delphinium decorum var. patens (Benth.) A. Gray -- not accepted
  Delphinium patens Benth. -- accepted -- zigzag larkspur
  Delphinium patens ssp. patens Benth. -- accepted -- zigzag larkspur
  Dendrolobium (Wight & Arn.) Benth. -- accepted
  Dendrolobium umbellatum (L.) Benth. -- accepted
  Dendromecon Benth. -- accepted -- tree poppy
  Dendromecon rigida Benth. -- accepted -- tree poppy
  Dendromecon rigida ssp. rigida Benth. -- not accepted -- tree poppy
  Dendrophylax lindenii (Lindl.) Benth. ex Rolfe -- accepted -- palmpolly
  Derris elliptica Benth. -- not accepted -- oiltree
  Derris ferruginea (Roxb.) Benth. -- accepted
  Derris uliginosa (Willd.) Benth. -- not accepted
  Deschampsia airiformis (Steud.) Benth. & Hook. f. -- accepted
  Deschampsia koelerioides (Peyr.) Benth. -- not accepted
  Desmanthus acuminatus Benth. -- accepted -- wild tantan
  Desmanthus reticulatus Benth. -- accepted -- netleaf bundleflower
  Desmanthus virgatus var. acuminatus (Benth.) Isely -- not accepted -- wild tantan
  Desmodium barbatum (L.) Benth. -- accepted -- zarzabacoa peluda
  Desmodium campylocaulon F. Muell. ex Benth. -- accepted
  Desmodium sylvaticum Benth. -- not accepted
  Deyeuxia aequivalvis Benth. ex Vasey -- not accepted
  Deyeuxia anomala (Trin.) Benth. & Hook. f. -- not accepted
  Deyeuxia sesquiflora (E. Desv.) Benth. & Hook. f. ex W.D. Jacks. -- not accepted
  Diaperia candida (Torr. & A. Gray) Benth. -- accepted -- silver pygmycudweed
  Diaperia drummondii (Torr. & A. Gray) Benth. -- not accepted
  Diastema Benth. -- accepted
  Diastema comiferum (DC.) Benth. ex Walp. -- accepted
  Diastema discolor (Poepp.) Benth. ex Müll. Hal. -- not accepted
  Diastema divaricatum (Poepp.) Benth. ex Walp. -- not accepted
  Diastema erinoides (DC.) Benth. ex Walp. -- not accepted
  Diastema incisum Benth. -- not accepted
  Diastema longiflorum Benth. -- not accepted
  Diastema maculatum (Poepp.) Benth. ex Walp. -- accepted
  Diastema molle (Poepp.) Benth. ex Walp. -- not accepted
  Diastema pictum (Benth. ex Hook.) Walp. -- not accepted
  Diastema racemiferum Benth. -- accepted
  Diastema scabrum (Poepp.) Benth. ex Walp. -- accepted
  Diastema tenerrimum (Poepp.) Benth. ex Walp. -- accepted
  Diastema urticifolium (Poepp.) Benth. ex Walp. -- accepted
  Dicerandra Benth. -- accepted -- balm
  Dicerandra densiflora Benth. -- accepted -- Florida balm
  Dicerandra linearifolia (Elliott) Benth. -- accepted -- coastal plain balm, coastalplain balm
  Dicerandra linearifolia var. linearifolia (Elliott) Benth. -- accepted -- coastal plain balm, coastalplain balm
  Dichelostemma capitatum (Benth.) Alph. Wood -- accepted -- bluedicks
  Dichelostemma capitatum ssp. capitatum (Benth.) Alph. Wood -- accepted -- bluedick, bluedicks
  Dichelostemma multiflorum (Benth.) A. Heller -- accepted -- roundtooth snakelily
  Dichelostemma pulchellum var. capitatum (Benth.) Reveal -- not accepted
  Dichrostachys nutans (Pers.) Benth. -- not accepted -- marabu
  Didymocarpus incanus (R. Brown) Benth. & Hook. f. ex C.B. Clarke -- not accepted
  Digitaria californica (Benth.) Henrard -- accepted -- Arizona cottontop
  Digitaria californica var. californica (Benth.) Henrard -- accepted
  Dioclea bicolor Benth. -- accepted
  Dioscorea latifolia Benth. -- not accepted
  Dioscorea macrostachya Benth. -- not accepted -- yam
  Dioscorea praehensilis Benth. -- accepted -- bush yam
  Diplacus cardinalis (Douglas ex Benth.) Groenland -- not accepted
  Diplacus glutinosus var. puniceus (Nutt.) Benth. -- not accepted
  Diplacus linearis (Benth.) Greene -- accepted -- chaparral bush monkeyflower
  Diplacus longiflorus var. linearis (Benth.) McMinn -- not accepted
  Dipteryx oleifera Benth. -- accepted
  Disporum trachycarpum (S. Watson) Benth. & Hook. f. -- not accepted -- rough-fruit fairybells, roughfruit fairybells, wartberry fairybells
  Dissanthelium californica (Nutt.) Benth. -- not accepted
  Dissanthelium californicum (Nutt.) Benth. -- accepted -- Catalina grass
  Dissotis Benth. -- accepted
  Ditaxis lanceolata (Benth.) Pax & K. Hoffm. -- accepted -- narrowleaf silverbush
  Ditaxis pilosissima (Benth.) A. Heller -- accepted -- tall silverbush
  Dodonaea attenuata var. linearis Benth. -- not accepted
  Dodonaea viscosa var. angustifolia (L. f.) Benth. -- not accepted
  Dopatrium Buch.-Ham. ex Benth. -- accepted
  Dopatrium junceum (Roxb.) Buch.-Ham. ex Benth. -- accepted -- horsefly's eye
  Dryandra polycephala Benth. -- not accepted
  Drymaria laxiflora Benth. -- accepted -- Trans-Pecos drymary
  Drymonia tenuis (Benth.) J.L. Clark -- accepted
  Dussia discolor (Benth.) Amshoff -- accepted
  Eleusine glaucophylla (Courbai) Munro ex Benth. -- not accepted
  Elionurus nuttallianus (Chapm.) Benth. ex Vasey -- not accepted
  Emmenanthe Benth. -- accepted -- whispering bells, whisperingbells
  Emmenanthe penduliflora Benth. -- accepted -- whispering bells, whisperingbells, yellow whispering bells
  Emmenanthe penduliflora var. penduliflora Benth. -- accepted -- whisperingbells
  Entada polyphylla Benth. -- not accepted -- callingcard vine
  Entada polystachya var. polyphylla (Benth.) Barneby -- accepted -- callingcard vine
  Entadopsis polyphylla (Benth.) Britton -- not accepted
  Enteropogon macrostachyus (Hochst. ex A. Rich.) Munro ex Benth. -- accepted
  Epicampes macroura (Kunth) Benth. -- not accepted
  Epicampes rigens Benth. -- not accepted
  Episcia glabra (Benth.) Hanst. -- not accepted
  Episcia hirsuta (Benth.) Hanst. -- not accepted
  Episcia mimuloides Benth. -- not accepted
  Epithema carnosum Benth. -- accepted
  Eragrostis biformis (Kunth) Benth. -- not accepted
  Eragrostis setifolia (Benth.) Steud. -- not accepted
  Eremocarpus Benth. -- not accepted
  Eremocarpus setiger (Hook.) Benth. -- not accepted
  Eremocarpus setigerus (Hook.) Benth. -- not accepted -- doveweed, turkey mullein
  Eremophila subfloccosa Benth. -- accepted -- fuchsia bush
  Eriastrum densifolium (Benth.) H. Mason -- accepted -- dense eriastrum, giant woollystar
  Eriastrum densifolium ssp. densifolium (Benth.) H. Mason -- accepted -- giant woollystar, giant woolstar
  Eriastrum densifolium ssp. elongatum (Benth.) H. Mason -- not accepted -- giant woolstar
  Eriastrum densifolium var. densilofium (Benth.) H. Mason -- not accepted
  Eriastrum luteum (Benth.) H. Mason -- accepted -- yellow woollystar
  Eriastrum virgatum (Benth.) H. Mason -- accepted -- wand woollystar
  Erigeron multiradiatus (Lindl. ex DC.) Benth. ex C.B. Clarke -- accepted -- Himalayan fleabane
  Eriochloa annulata var. acrotricha (Steud.) Benth. -- not accepted
  Eriochloa grandiflora (Trin.) Benth. -- accepted
  Eriodictyon Benth. -- accepted -- yerba santa
  Eriodictyon crassifolium Benth. -- accepted -- thickleaf yerba santa
  Eriodictyon crassifolium var. crassifolium Benth. -- accepted -- thickleaf yerba santa
  Eriodictyon tomentosum Benth. -- accepted -- woolly yerba santa
  Eriodictyon tormentosum Benth. -- not accepted
  Eriogonella membranacea (Benth.) Goodman -- not accepted
  Eriogonum androsaceum Benth. -- accepted -- rockjasmine buckwheat
  Eriogonum angulosum Benth. -- accepted -- anglestem buckwheat
  Eriogonum caespitosum var. douglasii (Benth.) M.E. Jones -- not accepted
  Eriogonum cinereum Benth. -- accepted -- coastal buckwheat
  Eriogonum compositum Douglas ex Benth. -- accepted -- arrowleaf buckwheat
  Eriogonum compositum var. compositum Douglas ex Benth. -- accepted -- arrowleaf buckwheat
  Eriogonum corymbosum Benth. -- accepted -- corymbed buckwheat, corymbed wildbuckwheat, crispleaf buckwheat, white buckwheat
  Eriogonum corymbosum var. corymbosum Benth. -- accepted -- crispleaf buckwheat
  Eriogonum douglasii Benth. -- accepted -- Douglas' buckwheat
  Eriogonum douglasii var. douglasii Benth. -- accepted -- Douglas' buckwheat
  Eriogonum effusum var. rosmarinoides Benth. -- not accepted -- spreading buckwheat
  Eriogonum elatum Douglas ex Benth. -- accepted -- rush buckwheat, tall woolly buckwheat
  Eriogonum elatum var. elatum Douglas ex Benth. -- accepted -- tall woolly buckwheat
  Eriogonum elongatum Benth. -- accepted -- longstem buckwheat
  Eriogonum elongatum var. elongatum Benth. -- accepted -- long-stem buckwheat
  Eriogonum fasciculatum Benth. -- accepted -- Eastern Mojave buckwheat, flattop buckwheat, yellow buckwheat
  Eriogonum fasciculatum ssp. polifolium (Benth.) S. Stokes -- not accepted
  Eriogonum fasciculatum var. fasciculatum Benth. -- accepted -- Eastern Mojave buckwheat
  Eriogonum fasciculatum var. polifolium (Benth.) Torr. & A. Gray -- accepted -- Eastern Mojave buckwheat, flattop buckwheat, Mojave buckwheat
  Eriogonum fendleranum (Benth.) Small -- not accepted
  Eriogonum fendlerianum (Benth.) Small -- not accepted
  Eriogonum flavum ssp. crassifolium (Benth.) S. Stokes -- not accepted
  Eriogonum flavum var. androsaceum (Benth.) M.E. Jones -- not accepted
  Eriogonum flavum var. crassifolium (Benth.) Benth. -- not accepted
  Eriogonum glandulosum (Nutt.) Nutt. ex Benth. -- accepted -- acorn buckwheat, Gambel's buckwheat
  Eriogonum gordonii Benth. -- accepted -- Gordon's buckwheat, Gordon's eriogonum, Gordon's wild buckwheat
  Eriogonum gracile Benth. -- accepted -- slender woolly buckwheat
  Eriogonum gracile var. gracile Benth. -- accepted -- slender woolly buckwheat
  Eriogonum heracleoides var. minus Benth. -- not accepted
  Eriogonum hieracifolium Benth. -- not accepted
  Eriogonum hieraciifolium Benth. -- accepted -- hawkweed buckwheat, hawkweed wild buckwheat
  Eriogonum jamesii Benth. -- accepted -- James' buckwheat, James' wildbuckwheat
  Eriogonum jamesii var. jamesii Benth. -- accepted -- James' buckwheat
  Eriogonum jamesii var. undulatum (Benth.) S. Stokes ex M.E. Jones -- accepted -- James' buckwheat
  Eriogonum lachnogynum Torr. ex Benth. -- accepted -- woolly-cup wild buckwheat, woollycup buckwheat
  Eriogonum lachnogynum var. lachnogynum Torr. ex Benth. -- accepted -- woollycup buckwheat
  Eriogonum latifolium ssp. auriculatum (Benth.) S. Stokes -- not accepted
  Eriogonum latifolium ssp. nudum (Douglas ex Benth.) S. Stokes -- not accepted
  Eriogonum lonchophyllum var. fendlerianum (Benth.) Reveal -- not accepted -- Fendler's wildbuckwheat, spearleaf buckwheat
  Eriogonum microthecum ssp. confertiflorum (Benth.) S. Stokes -- not accepted
  Eriogonum microthecum var. confertiflorum (Benth.) Torr. & A. Gray -- not accepted
  Eriogonum microthecum var. simpsonii (Benth.) Reveal -- accepted -- Simpson's buckwheat
  Eriogonum multiflorum Benth. -- accepted -- heartsepal buckwheat, heartsepal wildbuckwheat
  Eriogonum multiflorum var. multiflorum Benth. -- accepted -- many-flowered buckwheat
  Eriogonum niveum Douglas ex Benth. -- accepted -- snow buckwheat
  Eriogonum niveum ssp. decumbens (Benth.) S. Stokes -- not accepted
  Eriogonum niveum var. decumbens (Benth.) Torr. & A. Gray -- not accepted
  Eriogonum niveum var. dichotomum (Douglas ex Benth.) M.E. Jones -- not accepted
  Eriogonum nudum Douglas ex Benth. -- accepted -- naked buckwheat, nakedstem buckwheat
  Eriogonum nudum var. auriculatum (Benth.) J.P. Tracy ex Jeps. -- accepted -- naked buckwheat
  Eriogonum nudum var. nudum Douglas ex Benth. -- accepted -- naked buckwheat
  Eriogonum nudum var. pubiflorum Benth. -- accepted -- naked buckwheat
  Eriogonum pauciflorum var. gnaphalodes (Benth.) Reveal -- not accepted -- fewflower buckwheat
  Eriogonum polifolium Benth. -- not accepted
  Eriogonum polyanthum Benth. -- not accepted -- sulphur-flower buckwheat
  Eriogonum polycladon Benth. -- accepted -- sorrel buckwheat
  Eriogonum rotundifolium Benth. -- accepted -- round-leaf wild buckwheat, roundleaf buckwheat
  Eriogonum simpsonii Benth. -- not accepted
  Eriogonum sphaerocephalum Douglas ex Benth. -- accepted -- rock buckwheat, spurry buckwheat
  Eriogonum sphaerocephalum var. sphaerocephalum Douglas ex Benth. -- accepted -- rock buckwheat
  Eriogonum stellatum Benth. -- not accepted
  Eriogonum strictum Benth. -- accepted -- Blue Mountain buckwheat
  Eriogonum strictum ssp. strictum Benth. -- not accepted -- Blue Mountain buckwheat
  Eriogonum strictum var. lachnostegium Benth. -- not accepted
  Eriogonum strictum var. strictum Benth. -- accepted -- Blue Mountain buckwheat
  Eriogonum tenellum var. platyphyllum (Torr. ex Benth.) Torr. -- accepted -- tall buckwheat
  Eriogonum tenellum var. ramosissimum Benth. -- accepted -- tall buckwheat, tall wildbuckwheat
  Eriogonum tenellum var. ramosissinum Benth. -- not accepted
  Eriogonum thymoides Benth. -- accepted -- thymeleaf buckwheat
  Eriogonum trichopes ssp. minus (Benth.) S. Stokes -- not accepted
  Eriogonum umbellatum ssp. polyanthum (Benth.) S. Stokes -- not accepted
  Eriogonum umbellatum ssp. stellatum (Benth.) S. Stokes -- not accepted
  Eriogonum umbellatum var. polyanthum (Benth.) M.E. Jones -- accepted -- American river sulphur-flower buckwheat, sulphur-flower buckwheat
  Eriogonum umbellatum var. stellatum (Benth.) M.E. Jones -- not accepted -- sulphurflower buckwheat
  Eriogonum undulatum Benth. -- not accepted
  Eriogonum vimineum Douglas ex Benth. -- accepted -- broom buckwheat, wickerstem buckwheat
  Eriogonum virgatum Benth. -- not accepted
  Eriogonum wrightii Torr. ex Benth. -- accepted -- bastardsage, shrubby buckwheat, Wright's buckwheat
  Eriogonum wrightii ssp. trachygonum (Torr. ex Benth.) S. Stokes -- not accepted
  Eriogonum wrightii var. trachygonum (Torr. ex Benth.) Jeps. -- accepted -- bastardsage, shrubby buckwheat
  Eriogonum wrightii var. wrightii Torr. ex Benth. -- accepted -- bastardsage, shrubby buckwheat, Wright's bastardsage
  Eriosema floribundum Benth. -- accepted
  Erythranthe cardinalis (Douglas ex Benth.) Spach -- not accepted
  Eschscholzia caespitosa Benth. -- accepted -- tufted poppy
  Eschscholzia caespitosa var. hypecoides (Benth.) A. Gray -- not accepted
  Eschscholzia californica var. crocea (Benth.) Jeps. -- not accepted
  Eschscholzia californica var. douglasii (Benth.) A. Gray -- not accepted
  Eschscholzia hypecoides Benth. -- accepted -- San Benito poppy
  Eucalyptus albens Benth. -- accepted -- whitebox
  Eucalyptus annulata Benth. -- accepted -- open-fruit mallee
  Eucalyptus baxteri (Benth.) Maiden & Blakely ex J.M. Black -- accepted -- brown stringybark
  Eucalyptus caesia Benth. -- accepted
  Eucalyptus cinerea F. Muell. ex Benth. -- accepted -- argyle apple
  Eucalyptus conglobata (Benth.) Maiden -- accepted
  Eucalyptus drummondii Benth. -- accepted
  Eucalyptus erythronema var. marginata (Benth.) Domin -- accepted
  Eucalyptus grossa F. Muell. ex Benth. -- accepted -- coarse-leaf mallee
  Eucalyptus hemiphloia F. Muell. ex Benth. -- not accepted -- white box
  Eucalyptus hemiphloia var. albens (Benth.) Maiden -- not accepted -- whitebox
  Eucalyptus lehmannii (Schauer) Benth. -- accepted -- bushy yate
  Eucalyptus leptopoda Benth. -- accepted
  Eucalyptus loxophleba Benth. -- accepted -- eucalyptus
  Eucalyptus loxophleba ssp. loxophleba Benth. -- accepted -- eucalyptus
  Eucalyptus macrandra F. Muell. ex Benth. -- accepted -- long-flower marlock
  Eucalyptus macrorhyncha F. Muell. ex Benth. -- accepted -- red stringybark
  Eucalyptus pachyloma Benth. -- accepted
  Eucalyptus patens Benth. -- accepted -- blackbutt
  Eucalyptus siderophloia Benth. -- accepted -- northern gray ironbark
  Eucalyptus spathulata ssp. grandiflora (Benth.) L.A.S. Johnson & Blaxell -- accepted
  Eucrypta chrysanthemifolia (Benth.) Greene -- accepted -- common eucrypta, spotted hideseed
  Eucrypta chrysanthemifolia var. chrysanthemifolia (Benth.) Greene -- accepted -- spotted hideseed
  Eumecanthus multisetus (Benth.) Millsp. -- not accepted
  Eunanus brevipes (Benth.) Greene -- not accepted
  Eunanus coulteri Harv. & A. Gray ex Benth. -- not accepted
  Eunanus douglasii Benth. -- not accepted
  Eunanus fremontii Benth. -- not accepted
  Eunanus tolmiei Benth. -- not accepted
  Euphorbia anceps Benth. -- not accepted
  Euphorbia australis var. erythrantha (F. Muell.) Benth. -- not accepted
  Euphorbia californica Benth. -- accepted
  Euphorbia californica var. californica Benth. -- not accepted
  Euphorbia californica var. hindsiana (Benth.) Wiggins -- not accepted
  Euphorbia colletioides Benth. -- accepted
  Euphorbia convolvuloides Hochst. ex Benth. -- accepted
  Euphorbia divaricata A. Cunn. ex Benth. -- not accepted
  Euphorbia drummondii var. rubescens Benth. -- not accepted
  Euphorbia eriantha Benth. -- accepted -- beetle spurge, Mexican poinsettia
  Euphorbia filipes Benth. -- not accepted
  Euphorbia hindsiana Benth. -- accepted
  Euphorbia leucophylla Benth. -- accepted
  Euphorbia leucophylla ssp. leucophylla Benth. -- accepted
  Euphorbia macgillivrayi var. filipes (Benth.) Domin -- not accepted
  Euphorbia magdalenae Benth. -- accepted
  Euphorbia misera Benth. -- accepted -- cliff spurge
  Euphorbia mitchelliana var. glauca Benth. -- not accepted
  Euphorbia mitchelliana var. stenophylla Benth. -- not accepted
  Euphorbia multiseta Benth. -- accepted
  Euphorbia polycarpa Benth. -- accepted -- smallseed sandmat
  Euphorbia polycarpa var. polycarpa Benth. -- accepted -- smallseed sandmat
  Euphorbia radians Benth. -- accepted -- sun spurge
  Euphorbia radians var. radians Benth. -- accepted
  Euphorbia restiacea Benth. -- accepted
  Euphorbia sanguinea Hochst. & Steud. ex Benth. -- not accepted
  Euphorbia schizolepis var. glabra Benth. -- not accepted
  Euphorbia schultzii Benth. -- accepted
  Euphorbia sinclairiana Benth. -- accepted
  Euphorbia sphaerorhiza Benth. -- accepted
  Euphorbia tithymaloides ssp. retusa (Benth.) V.W. Steinm. -- accepted
  Euphorbia verrucosa var. flavescens Benth. -- not accepted
  Euphorbia zambesiana Benth. -- accepted
  Euphorbiodendron sinclairianum (Benth.) Millsp. -- not accepted
  Evax caulescens (Benth.) Gray -- not accepted -- involucrate pygmycudweed
  Evolvulus alsinoides var. sericeus Benth. -- accepted
  Evolvulus sericeus var. discolor (Benth.) A. Gray -- not accepted
  Fagonia californica Benth. -- accepted
  Fagraea berteriana A. Gray ex Benth. -- not accepted
  Fagraea berteroana A. Gray ex Benth. -- accepted
  Fatsia horrida (Sm.) Benth. & Hook. f. ex W.H. Brewer & S. Watson -- not accepted
  Festuca subulifolia Benth. -- accepted
  Festuca tolucensis var. subulifolia (Benth.) St.-Yves -- not accepted
  Festuca vaginalis (Benth.) Lægaard -- accepted
  Festuca vaginalis ssp. vaginalis (Benth.) Lægaard -- accepted
  Filicium Thwaites ex Benth. & Hook. f. -- accepted
  Forestiera phillyreoides (Benth.) Torr. -- not accepted -- desert-olive forestiera
  Fortunella hindsii (Champ. ex Benth.) Swingle -- accepted -- Hong Kong kumquat
  Frangula californica ssp. tomentella (Benth.) Kartesz & Gandhi -- not accepted -- California buckthorn
  Franseria chenopodiifolia Benth. -- not accepted
  Frasera albicaulis ssp. nitida (Benth.) D.M. Post -- not accepted
  Frasera albicaulis var. nitida (Benth.) C.L. Hitchc. -- accepted -- whitestem frasera
  Frasera nitida Benth. -- not accepted
  Fraxinus latifolia Benth. -- accepted -- Oregon ash
  Friesodielsia obovata (Benth.) Verdc. -- accepted -- monkey fingers
  Fritillaria camschatcensis var. floribunda (Benth.) B. Boivin -- not accepted
  Fritillaria liliacea Benth. -- not accepted
  Fritillaria pluriflora Torr. ex Benth. -- accepted -- adobe lily, adobe-lily
  Fritillaria recurva Benth. -- accepted -- scarlet fritillary
  Fuchsia canescens Benth. -- accepted
  Funastrum crispum (Benth.) Schltr. -- accepted -- wavyleaf twinevine
  Funtumia africana (Benth.) Stapf -- accepted -- Lagos silkrubbertree
  Galactia canescens Benth. -- accepted -- hoary milkpea
  Galactia longifolia (Jacq.) Benth. -- accepted -- longleaf milkpea
  Galactia marginalis Benth. -- accepted -- edible milkpea
  Galinsoga urticifolia (Kunth) Benth. -- accepted -- nettle-leaf soldier
  Galphimia angustifolia Benth. -- accepted -- narrowleaf goldshower
  Galpinsia hartwegii (Benth.) Britton -- not accepted
  Garcinia multiflora Champ. ex Benth. -- accepted -- garcinia
  Garrya ovata Benth. -- accepted -- eggleaf silktassel
  Garrya ovata ssp. ovata Benth. -- accepted -- eggleaf silktassel
  Gasteranthus Benth. -- accepted
  Gasteranthus pilosus Benth. -- not accepted
  Gasteranthus quitensis Benth. -- accepted
  Geranium carolinianum var. australe (Benth.) Fosberg -- not accepted
  Gerardia Benth. -- not accepted
  Gerardia aphylla var. grandiflora Benth. -- not accepted
  Gerardia aspera Douglas ex Benth. -- not accepted
  Gerardia densiflora Benth. -- not accepted
  Gerardia filicaulis (Benth.) Chapm. -- not accepted
  Gerardia filifolia var. gatesii Benth. -- not accepted
  Gerardia gatesii (Benth.) Pennell -- not accepted
  Gerardia grandiflora Benth. -- not accepted
  Gerardia grandiflora var. serrata (Torr. ex Benth.) B.L. Rob. -- not accepted
  Gerardia maritima ssp. grandiflora (Benth.) Pennell -- not accepted
  Gerardia maritima var. grandiflora Benth. -- not accepted
  Gerardia pectinata (Nutt.) Benth. -- not accepted
  Gerardia purpurea var. grandiflora Benth. -- not accepted
  Gerardia purpurea var. parviflora Benth. -- not accepted
  Gerardia setacea var. parvifolia Benth. -- not accepted
  Gerardia strictifolia Benth. -- not accepted
  Gerardia tenuifolia ssp. macrophylla (Benth.) Pennell -- not accepted
  Gerardia tenuifolia var. humilis Benth. -- not accepted
  Gerardia tenuifolia var. macrophylla Benth. -- not accepted
  Gesneria eriantha Benth. -- not accepted
  Gesneria guazumaefolia Benth. -- not accepted
  Gesneria guianensis Benth. -- not accepted
  Gesneria hispida (Benth.) Kuntze -- not accepted
  Gesneria inaequalis Benth. -- not accepted
  Gesneria incurva Benth. -- not accepted
  Gesneria longipes Benth. -- not accepted
  Gesneria petiolaris Benth. -- not accepted
  Gesneria rhynchocarpa Benth. -- not accepted
  Gesneria stachydifolia Benth. -- not accepted
  Gesneria vestita Benth. -- not accepted
  Giesleria picta (Benth. ex Hook.) Regel -- not accepted
  Gilia achilleifolia Benth. -- accepted -- California gilia, California gily-flower
  Gilia achilleifolia ssp. achilleifolia Benth. -- accepted -- California gilia
  Gilia achilleifolia ssp. multicaulis (Benth.) V.E. Grant & A.D. Grant -- accepted -- California gilia, California gily-flower
  Gilia ciliata Benth. -- not accepted
  Gilia dichotoma (Benth.) Benth. -- not accepted
  Gilia gilioides (Benth.) Greene -- not accepted
  Gilia gilioides ssp. glutinosa (Benth.) H. Mason & A.D. Grant -- not accepted
  Gilia incisa Benth. -- not accepted -- splitleaf gilia
  Gilia inconspicua var. sinuata (Douglas ex Benth.) A. Gray -- not accepted
  Gilia minutiflora Benth. -- not accepted
  Gilia multicaulis Benth. -- not accepted
  Gilia pharnaceoides Benth. -- not accepted
  Gilia pungens (Torr.) Benth. -- not accepted
  Gilia rigidula Benth. -- not accepted -- bluebowls, stiff gilia
  Gilia rigidula ssp. rigidula Benth. -- not accepted -- bluebowls
  Gilia sinuata Douglas ex Benth. -- accepted -- rosy gilia
  Gilia tenuiflora Benth. -- accepted -- greater yellow-throat gily-flower, greater yellowthroat gilia
  Gilia tenuiflora ssp. arenaria (Benth.) A.D. Grant & V.E. Grant -- accepted -- greater yellowthroat gilia, Monterey gilia
  Gilia tenuiflora ssp. tenuiflora Benth. -- accepted -- greater yellowthroat gilia
  Gilia tricolor Benth. -- accepted -- bird's-eye gilia
  Gilia tricolor ssp. tricolor Benth. -- accepted -- bird's-eye gilia
  Giliastrum incisum (Benth.) J.M. Porter -- accepted -- splitleaf gilia
  Giliastrum rigidulum (Benth.) Rydb. -- accepted -- bluebowls
  Githopsis calycina Benth. -- not accepted
  Githopsis calycina var. hirsuta Benth. -- not accepted
  Glandularia bipinnatifida var. ciliata (Benth.) B.L. Turner -- accepted -- Davis Mountain mock vervain
  Glechoma hederacea var. parviflora (Benth.) House -- not accepted
  Glossanthus malabaricus Klein ex Benth. -- not accepted
  Gloxinia racemosa (Benth.) Wiehler -- not accepted
  Gloxiniopsis racemosa (Benth.) Roalson & Boggan -- accepted
  Glyceria glaucescens (Phil.) Benth. -- not accepted
  Glyceria magellanica (Hook. f.) Benth. -- not accepted
  Glycine falcata Benth. -- accepted
  Glycine tabacina (Labill.) Benth. -- accepted
  Gomphocarpus cordifolius (Benth.) Benth. ex A. Gray -- not accepted
  Gouinia E. Fourn. ex Benth. & Hook. f. -- accepted
  Grammadenia Benth. -- not accepted
  Gratiola ebracteata Benth. ex A. DC. -- accepted -- bractless hedgehyssop
  Gratiola hispida (Benth. ex Lindl.) Pollard -- accepted -- rough hedgehyssop
  Gratiola subulata Baldwin ex Benth. -- not accepted
  Guibourtia coleosperma (Benth.) J. Léonard -- accepted -- Rhodesian copalwood
  Guilleminea lanuginosa (Poir.) Moq. ex Benth. & Hook. f. -- not accepted
  Habenaria conopsea (L.) Benth. -- not accepted
  Hardenbergia Benth. -- accepted
  Havardia pallens (Benth.) Britton & Rose -- accepted -- haujillo
  Hedeoma ciliata (Benth.) Benth. ex A. DC. -- not accepted
  Hedeoma drummondii Benth. -- accepted -- Drummond's false pennyroyal, Drummond's pennyroyal
  Heliamphora Benth. -- accepted
  Helianthus niveus (Benth.) Brandegee -- accepted -- showy sunflower, snowy sunflower
  Helianthus niveus ssp. niveus (Benth.) Brandegee -- accepted
  Helianthus niveus var. niveus (Benth.) Brandegee -- not accepted
  Heliconia latispatha Benth. -- accepted -- expanded lobsterclaw
  Heliconia vaginalis Benth. -- accepted
  Helietta parvifolia (A. Gray ex Hemsl.) Benth. -- accepted -- barreta
  Helipterum roseum (Hook.) Benth. -- not accepted
  Hemichaena Benth. -- accepted
  Hemichaena fruticosa Benth. -- accepted
  Hemizonia luzulifolia ssp. rudis (Benth.) D.D. Keck -- not accepted
  Hemizonia ramosissima Benth. -- not accepted
  Henrya Nees ex Benth. -- accepted
  Henrya insularis Nees ex Benth. -- accepted -- island renegade, island-renegade
  Heppiella guazumaefolia (Benth.) Wiehler -- not accepted
  Hesperevax caulescens (Benth.) A. Gray -- accepted -- dwarf dwarf-cudweed
  Hesperochiron californicus (Benth.) S. Watson -- accepted -- California hesperochiron
  Hesperolinon californicum (Benth.) Small -- accepted -- California dwarf-flax
  Hesperomecon linearis (Benth.) Greene -- accepted -- narrowleaf queen poppy
  Heteranthera peduncularis Benth. -- accepted -- egret mudplantain
  Heteropogon melanocarpus (Elliott) Benth. -- accepted -- sweet tanglehead
  Heterotheca echioides (Benth.) Shinners -- not accepted
  Heterotheca floribunda Benth. -- not accepted
  Heterotheca sessiliflora ssp. echioides (Benth.) Semple -- accepted -- sessileflower false goldenaster
  Heterotheca sessiliflora ssp. echioides var. echioides (Benth.) Semple -- not accepted
  Heterotheca sessiliflora var. echioides (Benth.) Semple -- not accepted -- sessileflower false goldenaster
  Heterotis Benth. -- accepted
  Hexadenia macrocarpa (Benth.) Klotzsch & Garcke -- not accepted
  Hibiscus denudatus Benth. -- accepted -- desert hibiscus, paleface, rock hibiscus
  Hierochloe mexicana (Rupr. ex E. Fourn.) Benth. ex Hitchc. -- not accepted
  Hilaria jamesii (Torr.) Benth. -- accepted
  Hilaria mutica (Buckley) Benth. -- accepted
  Hilaria rigida (Thurb.) Benth. ex Scribn. -- accepted
  Hilaria sericea Benth. -- not accepted
  Hoffmannseggia densiflora Benth. -- not accepted -- pignut
  Hoffmannseggia densiflora var. stricta (Benth.) Fisher -- not accepted
  Hoffmannseggia falcaria var. stricta (Benth.) Fisher -- not accepted -- hog potato, Indian rushpea
  Hoffmannseggia oxycarpa Benth. -- accepted -- sharppod rushpea
  Hoffmannseggia oxycarpa ssp. oxycarpa Benth. -- accepted -- sharppod rushpea
  Hoffmanseggia oxycarpa Benth. -- not accepted
  Holographis virgata (Harv. ex Benth. & Hook. f.) T.F. Daniel -- accepted -- white devilbush
  Homalachne (Benth. & Hook.) Kuntze -- not accepted
  Homolepis longiflora (Benth.) Pilg. -- not accepted
  Hookera minor (Benth.) Kunze -- not accepted
  Hookeria minor (Benth.) Kunze -- not accepted
  Hormidium pygmaeum (Hook.) Benth. & Hook. f. -- not accepted
  Hosackia Douglas ex Benth. -- accepted
  Hosackia brachycarpa Benth. -- not accepted
  Hosackia crassifolia Benth. -- accepted -- big deervetch
  Hosackia crassifolia var. crassifolia Benth. -- accepted -- big deervetch
  Hosackia cystoides Benth. -- not accepted
  Hosackia decumbens Benth. -- not accepted
  Hosackia gracilis Benth. -- accepted -- seaside bird's-foot trefoil
  Hosackia grandiflora Benth. -- not accepted
  Hosackia juncea Benth. -- not accepted
  Hosackia oblongifolia Benth. -- accepted -- streambank bird's-foot trefoil
  Hosackia oblongifolia var. oblongifolius Benth. -- accepted -- streambank bird's-foot trefoil
  Hosackia parviflora Benth. -- not accepted
  Hosackia rigida Benth. -- not accepted
  Hosackia sericea Benth. -- not accepted
  Hosackia stipularis Benth. -- accepted -- balsam bird's-foot trefoil
  Hosackia stipularis var. stipularis Benth. -- accepted -- balsam bird's-foot trefoil
  Houstonia acerosa (A. Gray) Benth. & Hook. f. -- accepted -- needleleaf bluet
  Houstonia acerosa ssp. acerosa (A. Gray) A. Gray ex Benth. & Hook. f. -- not accepted -- needleleaf bluet
  Houstonia acerosa var. acerosa (A. Gray) A. Gray ex Benth. & Hook. f. -- accepted -- needleleaf bluet
  Hugelia densifolia Benth. -- not accepted
  Hydrophyllum capitatum Douglas ex Benth. -- accepted -- ballhead waterleaf
  Hydrophyllum capitatum var. capitatum Douglas ex Benth. -- accepted -- ballhead waterleaf
  Hypecoum grandiflorum Benth. -- not accepted
  Hyperbaena Miers ex Benth. -- accepted
  Hyperbaena domingensis (DC.) Benth. -- accepted -- forest snakevine
  Hypericum concinnum Benth. -- accepted -- goldwire
  Hypochaeris brasiliensis (Less.) Benth. & Hook. ex Griseb. -- not accepted -- Brazilian catsear
  Ichnanthus longiflorus Benth. -- not accepted
  Ichnanthus pallens (Sw.) Munro ex Benth. -- accepted -- caruzo
  Ichnanthus pallens var. pallens (Sw.) Munro ex Benth. -- accepted -- caruzo
  Ilysanthes grandiflora (Nutt.) Benth. -- not accepted
  Imperata saccharifera Andersson ex Benth. -- not accepted
  Indigofera cryptantha Benth. ex Harv. -- accepted
  Inga fagifolia (L.) Willd. ex Benth. -- not accepted
  Inga sertulifera ssp. leptopus (Benth.) T.D. Penn. -- accepted
  Iochroma Benth. -- accepted
  Ipomoea crassicaulis (Benth.) B.L. Rob. -- not accepted
  Ipomoea longifolia Benth. -- accepted -- pink-throat morningglory, pinkthroat morning-glory, pinkthroat morningglory
  Ipomopsis minutiflora (Benth.) V.E. Grant -- accepted -- littleflower ipomopsis
  Isoloma erianthum (Benth.) Decne. -- not accepted
  Isoloma hypocyrtiflorum (Hook. f.) Benth. -- not accepted
  Isoloma inaequale (Benth.) Benth. ex Jacks. -- not accepted
  Isoloma incurvum (Benth.) Hemsl. -- not accepted
  Isoloma longipes (Benth.) Decne. -- not accepted
  Isoloma ocellatum (Hook.) Benth. ex Jacks. -- not accepted
  Isoloma petiolare (Benth.) Decne. -- not accepted
  Isoloma purpureum (Poepp.) Benth. -- not accepted
  Isoloma rhynchocarpum (Benth.) Decne. -- not accepted
  Isoloma seemannii (Hook.) Benth. -- not accepted
  Isoloma vestitum (Benth.) Decne. -- not accepted
  Ixora ferrea (Jacq.) Benth. -- accepted -- palo de hierro
  Jacobinia candicans (Nees) Benth. & Hook. f. -- not accepted
  Jacquemontia canescens (Kunth) Benth. -- not accepted
  Jatropha canescens (Benth.) Müll. Arg. -- not accepted -- Arizona nettlespurge
  Jatropha macrorhiza Benth. -- accepted -- ragged jatropha, ragged nettlespurge
  Jatropha macrorhiza var. macrorhiza Benth. -- not accepted -- ragged nettlespurge
  Justicia californica (Benth.) D.N. Gibson -- accepted -- beloperone
  Keckiella antirrhinoides (Benth.) Straw -- accepted -- chaparral bush-beardtongue, snapdragon penstemon
  Keckiella antirrhinoides ssp. antirrhinoides (Benth.) Straw -- accepted -- snapdragon penstemon
  Keckiella antirrhinoides var. antirrhinoides (Benth.) Straw -- not accepted
  Keckiella cordifolia (Benth.) Straw -- accepted -- heartleaf keckiella
  Keckiella corymbosa (Benth.) Straw -- accepted -- redwood keckiella
  Kelloggia Torr. ex Benth. -- accepted
  Kigelia africana (Lam.) Benth. -- accepted -- sausage tree
  Kochia erioclada (Benth.) Gauba -- not accepted
  Kochia pyramidata Benth. -- not accepted
  Koellia hyssopifolia (Benth.) Britton -- not accepted
  Kohleria eriantha (Benth.) Hanst. -- not accepted
  Kohleria guazumaefolia (Benth.) Regel -- not accepted
  Kohleria hirsuta var. longipes (Benth.) L.P. Kvist & L.E. Skog -- accepted
  Kohleria inaequalis (Benth.) Wiehler -- accepted
  Kohleria inaequalis var. inaequalis (Benth.) Wiehler -- accepted
  Kohleria longifolia var. petiolaris (Benth.) C.V. Morton -- not accepted
  Kohleria longipes (Benth.) Hanst. -- not accepted
  Kohleria petiolaris (Benth.) Hanst. -- not accepted
  Kohleria vestita (Benth.) Hanst. -- not accepted
  Krameria parvifolia Benth. -- not accepted
  Lagophylla dichotoma Benth. -- accepted -- forked hareleaf
  Lapeirousia cruenta (Lindl.) Benth. ex Baker -- not accepted
  Lasiostega Benth. -- not accepted
  Leonurus cardiaca var. villosus (Desf. ex Spreng.) Benth. -- not accepted
  Lepechinia calycina (Benth.) Epling -- accepted -- woodbalm
  Lepidium heterophyllum Benth. -- accepted -- purpleanther field pepperweed
  Leptoboea Benth. -- accepted
  Leptoglossis Benth. -- accepted
  Leptosiphon Benth. -- accepted
  Leptosiphon androsaceus Benth. -- accepted -- false babystars
  Leptosiphon ciliatus (Benth.) Jeps. -- accepted -- whiskerbrush
  Leptosiphon ciliatus ssp. ciliatus (Benth.) Jeps. -- accepted -- whiskerbrush
  Leptosiphon filipes (Benth.) J.M. Porter & L.A. Johnson -- accepted -- thread linanthus
  Leptosiphon grandiflorus (Benth.) J.M. Porter & L.A. Johnson -- accepted -- largeflower linanthus
  Leptosiphon liniflorus (Benth.) J.M. Porter & L.A. Johnson -- accepted -- narrowflower flaxflower
  Leptosiphon parviflorus (Benth.) J.M. Porter & L.A. Johnson -- accepted -- variable linanthus
  Leptospermum abnorme F. Muell. ex Benth. -- not accepted
  Leucaena Benth. -- accepted -- leadtree
  Leucaena diversifolia (Schltdl.) Benth. -- accepted -- red leucaena, upland koa haole
  Leucaena esculenta (Sessé & Moc. ex DC.) Benth. -- accepted -- guaje
  Leucaena glauca Benth. -- not accepted
  Leucaena pulverulenta (Schltdl.) Benth. -- accepted -- great leadtree
  Leucaena retusa Benth. -- accepted -- littleleaf leadtree
  Leucopsidium humile Benth. -- not accepted
  Leucosyris spinosa (Benth.) Greene -- not accepted
  Licania rigida Benth. -- accepted -- oiticica
  Limnanthes alba Hartw. ex Benth. -- accepted -- white meadowfoam
  Limnanthes alba ssp. alba Hartw. ex Benth. -- accepted -- white meadowfoam
  Limnanthes douglasii ssp. rosea (Hartw. ex Benth.) C.T. Mason -- accepted -- Douglas' meadowfoam
  Limnanthes douglasii var. rosea (Hartw. ex Benth.) C.T. Mason -- not accepted
  Limnanthes rosea Hartw. ex Benth. -- not accepted
  Linanthus Benth. -- accepted
  Linanthus androsaceus (Benth.) Greene -- not accepted -- false babystars
  Linanthus androsaceus ssp. androsaceus (Benth.) Greene -- not accepted -- false babystars
  Linanthus androsaceus ssp. laetus (Benth.) H. Mason -- not accepted
  Linanthus androsaceus ssp. luteus (Benth.) H. Mason -- not accepted
  Linanthus androsaceus ssp. micranthus (Steud. ex Benth.) H. Mason -- not accepted
  Linanthus ciliatus (Benth.) Greene -- not accepted -- bristlyleaf linanthus, whiskerbrush
  Linanthus ciliatus var. ciliatus (Benth.) Greene -- not accepted -- whiskerbrush
  Linanthus dianthiflorus (Benth.) Greene -- accepted -- fringed linanthus
  Linanthus dianthiflorus ssp. dianthiflorus (Benth.) Greene -- not accepted -- fringed linanthus
  Linanthus dichotomus Benth. -- accepted -- evening snow, eveningsnow
  Linanthus dichotomus ssp. dichotomus Benth. -- not accepted -- eveningsnow
  Linanthus filipes (Benth.) Greene -- not accepted -- thread linanthus
  Linanthus gradiflorus (Benth.) Greene -- not accepted
  Linanthus grandiflorus (Benth.) Greene -- not accepted -- largeflower linanthus
  Linanthus liniflorus (Benth.) Greene -- not accepted -- narrowflower flaxflower
  Linanthus liniflorus ssp. liniflorus (Benth.) Greene -- not accepted -- narrowflower flaxflower
  Linanthus liniflorus ssp. pharnaceoides (Benth.) H. Mason -- not accepted -- lighthouse flaxflower
  Linanthus liniflorus var. pharnaceoides (Benth.) A. Gray -- not accepted
  Linanthus parviflorus (Benth.) Greene -- not accepted -- variable linanthus
  Linanthus pharnaceoides (Benth.) Greene -- not accepted
  Lindelofia longiflora (Benth.) Baill. -- accepted
  Lindernia ellobum (Benth.) Koord. -- not accepted
  Linum californicum Benth. -- not accepted
  Locheria pedunculata (Benth.) Regel -- not accepted
  Lomatium dasycarpum ssp. tomentosum (Benth.) W.L. Theob. -- accepted -- woollyfruit desertparsley
  Lomatium marginatum (Benth.) J.M. Coult. & Rose -- accepted -- butte desertparsley
  Lomatium marginatum var. marginatum (Benth.) J.M. Coult. & Rose -- accepted -- butte desertparsley
  Lomatium tomentosum (Benth.) J.M. Coult. & Rose -- not accepted
  Lonchocarpus cyanescens (Schumach. & Thonn.) Benth. -- not accepted
  Lonchocarpus nitidus (Vogel) Benth. -- accepted
  Lonicera interrupta Benth. -- accepted -- chaparral honeysuckle
  Lotononis azurea (Eckl. & Zeyh.) Benth. -- accepted
  Lotus crassifolius (Benth.) Greene -- not accepted -- big deervetch
  Lotus crassifolius var. crassifolius (Benth.) Greene -- not accepted -- big deervetch
  Lotus grandiflorus (Benth.) Greene -- not accepted -- chaparral bird's-foot trefoil
  Lotus grandiflorus var. grandiflorus (Benth.) Greene -- not accepted -- chaparral bird's-foot trefoil
  Lotus junceus (Benth.) Greene -- not accepted -- rush broom
  Lotus junceus var. junceus (Benth.) Greene -- not accepted -- rush broom
  Lotus micranthus Benth. -- not accepted -- desert deervetch
  Lotus oblongifolius (Benth.) Greene -- not accepted -- narrowleaf trefoil, streambank bird's-foot trefoil, streambank bird's-foot-trefoil
  Lotus oblongifolius var. oblongifolius (Benth.) Greene -- not accepted -- streambank bird's-foot trefoil, streambank trefoil
  Lotus rigidus (Benth.) Greene -- not accepted -- shrubby deervetch
  Lotus stipularis (Benth.) Greene -- not accepted -- balsam bird's-foot trefoil
  Lotus stipularis var. stipularis (Benth.) Greene -- not accepted -- balsam bird's-foot trefoil
  Lotus unifoliolatus (Hook.) Benth. -- not accepted -- American bird's-foot trefoil, American bird's-foot-trefoil, American birdsfoot trefoil
  Lotus unifoliolatus var. unifoliolatus (Hook.) Benth. -- not accepted -- American bird's-foot trefoil, American bird's-foot-trefoil, prairie trefoil, Spanish clover
  Loxotis intermedia Benth. -- not accepted
  Loxotis obliqua (Wall.) Benth. -- not accepted
  Luina Benth. -- accepted -- silverback
  Luina hypoleuca Benth. -- accepted -- littleleaf silverback
  Lupinus albifrons Benth. -- accepted -- silver lupine
  Lupinus albifrons var. albifrons Benth. -- accepted -- silver lupine
  Lupinus densiflorus Benth. -- accepted -- whitewhorl lupine
  Lupinus densiflorus var. densiflorus Benth. -- accepted -- whitewhorl lupine
  Lupinus hilarianus Benth. -- accepted
  Lupinus hirsutissimus Benth. -- accepted -- stinging annual lupine
  Lupinus leptophyllus Benth. -- not accepted
  Lupinus macrophyllus Benth. -- not accepted
  Lupinus microcarpus var. densiflorus (Benth.) Jeps. -- not accepted
  Lupinus nanus Douglas ex Benth. -- accepted -- annual lupine, sky lupine
  Lupinus nanus ssp. latifolius (Benth. ex Torr.) D.B. Dunn -- accepted -- sky lupine
  Lupinus nanus ssp. nanus Douglas ex Benth. -- accepted -- sky lupine
  Lupinus nanus var. latifolius Benth. ex Torr. -- not accepted
  Lupinus sparsiflorus Benth. -- accepted -- Coulter's lupine, Mojave lupine
  Lupinus sparsiflorus ssp. sparsiflorus Benth. -- accepted -- Coulter's lupine, Mojave lupine
  Luziola micrantha (Schrad. ex Kunth) Benth. -- not accepted
  Luziola spruceana Benth. ex Döll -- accepted
  Lycium brevipes Benth. -- accepted -- Baja desert-thorn
  Lycopus lucidus auct. non Turcz. ex Benth. -- not accepted
  Lycopus virginicus var. pauciflorus Benth. -- not accepted
  Lysiloma Benth. -- accepted -- false tamarind
  Lysiloma bahamense Benth. -- not accepted
  Lysiloma latisiliqua (L.) Benth. -- not accepted
  Lysiloma latisiliquum (L.) Benth. -- accepted -- false tamarind
  Lysiloma microphylla Benth. -- not accepted
  Lysiloma microphyllum Benth. -- not accepted
  Lysiloma sabicu Benth. -- accepted -- horseflesh mahogany
  Macairea lasiophylla (Benth.) Wurdack -- accepted
  Macranthera Nutt. ex Benth. -- accepted
  Macroptilium (Benth.) Urb. -- accepted -- bushbean
  Macrorhynchus retrorsus Benth. -- not accepted
  Macrosiphonia hypoleuca (Benth.) Müll. Arg. -- not accepted -- Davis Mountain rocktrumpet
  Maireana erioclada (Benth.) Paul G. Wilson -- accepted -- rosy bluebush
  Maireana pyramidata (Benth.) Paul G. Wilson -- accepted
  Majorana onites (L.) Benth. -- not accepted
  Malacothrix obtusa Benth. -- not accepted
  Malacothrix parviflora Benth. -- not accepted
  Mandevilla hypoleuca (Benth.) Pichon -- accepted -- Davis Mountain rocktrumpet
  Mapania sumatrana (Miq.) Benth. -- accepted
  Marantochloa flexuosa (Benth.) Hutch. -- not accepted
  Marantochloa ramosissima (Benth.) Hutch. -- accepted -- marantochloa
  Markhamia lutea (Benth.) K. Schum. -- accepted -- siala
  Marsypianthes Mart. ex Benth. -- accepted
  Martynia althaeifolia Benth. -- not accepted
  Maytenus phyllanthoides Benth. -- accepted -- Florida mayten, guttapercha mayten
  Mecardonia peduncularis (Benth.) Small -- not accepted
  Meconella linearis (Benth.) A. Nelson & J.F. Macbr. -- not accepted
  Medicago muricata Benth. -- not accepted
  Medicago orbicularis var. marginata (Willd.) Benth. -- not accepted
  Medicago polymorpha var. brevispina (Benth.) Heyn -- not accepted
  Medicago polymorpha var. vulgaris (Benth.) Shinners -- not accepted
  Meibomia procumbens var. sylvatica (Benth.) Schindl. -- not accepted
  Melaleuca pungens var. obtusifolia Benth. -- accepted
  Melaleuca urceolaris F. Muell. ex Benth. -- accepted
  Mentha aquatica var. crispa (L.) Benth. -- not accepted
  Mentha arvensis var. glabrata (Benth.) Fernald -- not accepted
  Mentha arvensis var. sativa auct. non Benth. -- not accepted
  Mentha arvensis var. villosa (Benth.) S.R. Stewart -- not accepted
  Mentha requienii Benth. -- accepted -- mint
  Meyenia erecta Benth. -- not accepted
  Micrandra Benth. -- accepted
  Micrandra minor Benth. -- not accepted
  Micrandra siphonioides Benth. -- accepted
  Micromeria Benth. -- accepted
  Micromeria brownei (Sw.) Benth. -- not accepted -- Browne's savory
  Micromeria chamissonis (Benth.) Greene -- not accepted
  Micromeria douglasii (Benth.) Benth. -- accepted -- yerba buena
  Microseris sylvatica (Benth.) Sch. Bip. -- accepted -- sylvan scorzonella
  Mimetanthe pilosa (Benth.) Greene -- not accepted -- false monkey-flower, false monkeyflower
  Mimosa aculeaticarpa var. biuncifera (Benth.) Barneby -- accepted -- catclaw mimosa, mimosa, wait-a-bit
  Mimosa biuncifera Benth. -- not accepted
  Mimosa distachya var. laxiflora (Benth.) Barneby -- accepted -- Arizona mimosa
  Mimosa dysocarpa Benth. -- accepted -- velvetpod mimosa
  Mimosa dysocarpa var. dysocarpa Benth. -- not accepted -- velvetpod mimosa
  Mimosa emoryana Benth. -- accepted -- Emory's mimosa
  Mimosa laxiflora Benth. -- not accepted -- Arizona mimosa, garabatillo
  Mimosa schomburgkii Benth. -- accepted -- Schomburgk's mimosa
  Mimosa zygophylla auct. non Benth. -- not accepted
  Mimosopsis biuncifera (Benth.) Britton & Rose -- not accepted
  Mimulus alsinoides Douglas ex Benth. -- accepted -- wingstem monkeyflower
  Mimulus bicolor Hartw. ex Benth. -- accepted -- yellow and white monkeyflower
  Mimulus brevipes Benth. -- accepted -- widethroat yellow monkeyflower
  Mimulus cardinalis Douglas ex Benth. -- accepted -- crimson monkeyflower, scarlet monkey-flower, scarlet monkeyflower
  Mimulus dentatus Nutt. ex Benth. -- accepted -- coastal monkeyflower
  Mimulus douglasii (Benth.) A. Gray -- accepted -- brownies
  Mimulus fremontii (Benth.) A. Gray -- accepted -- Fremont's monkeyflower
  Mimulus glabratus ssp. fremontii (Benth.) Pennell -- not accepted
  Mimulus glabratus var. fremontii (Benth.) A.L. Grant -- not accepted
  Mimulus glabratus var. jamesii (Torr. & A. Gray ex Benth.) A. Gray -- accepted -- James' monkeyflower
  Mimulus glutinosus var. linearis (Benth.) A. Gray -- not accepted
  Mimulus guttatus var. lyratus (Benth.) Pennell -- not accepted
  Mimulus guttatus var. microphyllus (Benth.) Pennell -- not accepted
  Mimulus jamesii Torr. & A. Gray ex Benth. -- not accepted
  Mimulus jamesii var. fremontii Benth. -- not accepted
  Mimulus langsdorffii var. microphyllus (Benth.) A. Nelson & J.F. Macbr. -- not accepted
  Mimulus langsdorfii var. microphyllus (Benth.) A. Nelson & J.F. Macbr. -- not accepted
  Mimulus linearis Benth. -- not accepted
  Mimulus linearis auct. non Benth. -- not accepted
  Mimulus longiflorus var. linearis (Benth.) A.L. Grant -- not accepted
  Mimulus lyratus Benth. -- not accepted
  Mimulus microphyllis Benth. -- not accepted
  Mimulus microphyllus Benth. -- not accepted
  Mimulus peduncularis Douglas ex Benth. -- not accepted
  Mimulus pilosus (Benth.) S. Watson -- accepted -- false monkeyflower
  Mimulus primuloides Benth. -- accepted -- primrose monkeyflower, yellow creeping monkey-flower
  Mimulus primuloides ssp. primuloides Benth. -- not accepted -- monkeyflower
  Mimulus primuloides var. primuloides Benth. -- accepted -- primrose monkey-flower, primrose monkeyflower
  Mimulus pubescens Benth. -- not accepted
  Mimulus reniformis Engelm. ex Benth. -- not accepted
  Mimulus tolmiei (Benth.) Rydb. -- not accepted
  Mirabilis coccinea (Torr.) Benth. & Hook. f. -- accepted -- red four-o'clock, scarlet four o'clock, scarlet four-o'clock
  Mirabilis laevis (Benth.) Curran -- accepted -- desert wishbone-bush
  Mirabilis laevis var. laevis (Benth.) Curran -- accepted -- desert wishbone-bush
  Miscanthus saccharifer Benth. -- not accepted
  Mohavea confertiflora (Benth.) A. Heller -- accepted -- ghost flower, ghostflower
  Monarda fistulosa ssp. fistulosa var. mollis (L.) Benth. -- not accepted -- Oswego-tea, wild bergamot
  Monarda fistulosa var. mollis (L.) Benth. -- accepted -- wild bergamot
  Monardella Benth. -- accepted
  Monardella candicans Benth. -- accepted -- Sierra monardella
  Monardella douglasii Benth. -- accepted -- Douglas' monardella
  Monardella douglasii ssp. douglasii Benth. -- accepted -- Douglas' monardella
  Monardella douglasii var. douglasii Benth. -- not accepted -- Douglas' mountainbalm
  Monardella odoratissima Benth. -- accepted -- mountain monardella, Pacific monardella
  Monardella odoratissima ssp. odoratissima Benth. -- accepted -- alpine mountainbalm, mountain monardella
  Monardella undulata Benth. -- accepted -- curlyleaf monardella
  Monardella undulata var. undulata Benth. -- not accepted -- curlyleaf mountainbalm
  Monardella villosa Benth. -- accepted -- coyote mint
  Monardella villosa ssp. villosa Benth. -- accepted -- coyote mint
  Monardella villosa ssp. villosa var. villosa Benth. -- not accepted -- coyote mountainbalm
  Monopyle Moritz ex Benth. -- accepted
  Monopyle leucantha Moritz ex Benth. -- not accepted
  Monopyle macrocarpa Benth. -- accepted
  Monopyle macrocarpa var. isophylla Benth. -- accepted
  Monopyle macrocarpa var. macrocarpa Benth. -- accepted
  Monopyle macrophylla Benth. -- not accepted
  Monopyle paniculata Benth. -- accepted
  Monopyle racemosa Benth. -- not accepted
  Monopyle subsessilis Benth. -- accepted
  Montagnaea hibiscifolia Benth. -- not accepted
  Montanoa hibiscifolia (Benth.) Standl. -- accepted -- montanoa, tree daisy, treedaisy
  Mosla (Benth.) Buch.-Ham. ex Maxim. -- accepted -- mosla
  Mucronea Benth. -- accepted -- spineflower
  Mucronea californica Benth. -- accepted -- California spineflower
  Mucuna rostrata Benth. -- accepted
  Muhlenbergia comata (Thurb.) Thurb. ex Benth. -- not accepted
  Muhlenbergia longiseta Benth. -- not accepted
  Muhlenbergia nana Benth. -- not accepted
  Muhlenbergia rigens (Benth.) Hitchc. -- accepted -- deer muhly, deergrass
  Muilla S. Watson ex Benth. -- accepted -- muilla
  Myosurus aristatus auct. non Benth. -- not accepted -- bristle mousetail
  Myosurus minimus var. aristatus auct. non (Benth.) B. Boivin -- not accepted
  Napeanthus primulinus (H. Karst.) Benth. & Hook. f. ex Jacks. -- accepted
  Napeanthus subacaulis (Griseb.) Benth. & Hook. f. ex Kuntze -- accepted
  Napeanthus subacaulis var. subacaulis (Griseb.) Benth. & Hook. f. ex Kuntze -- accepted
  Nautilocalyx mimuloides (Benth.) C.V. Morton -- accepted
  Navarretia atractyloides (Benth.) Hook. & Arn. -- not accepted
  Navarretia atractyloides (Benth.) Hook. & Arn. -- accepted -- hollyleaf pincushionplant
  Navarretia cotulifolia (Benth.) Hook. & Arn. -- accepted -- cotulaleaf pincushionplant
  Navarretia intertexta (Benth.) Hook. -- accepted -- needle-leaf pincushion-plant, needleleaf navarretia
  Navarretia intertexta ssp. intertexta (Benth.) Hook. -- accepted -- needleleaf navarretia
  Navarretia leucocephala Benth. -- accepted -- white-flower pincushion-plant, whitehead navarretia
  Navarretia leucocephala ssp. leucocephala Benth. -- accepted -- whitehead navarretia
  Navarretia minima var. intertexta (Benth.) B. Boivin -- not accepted
  Navarretia pubescens (Benth.) Hook. & Arn. -- accepted -- downy pincushionplant
  Navarretia viscidula Benth. -- accepted -- sticky pincushionplant
  Navarretia viscidula ssp. viscidula Benth. -- accepted -- sticky pincushionplant
  Nemastylus tenuis (Herb.) Benth. ex Baker -- not accepted
  Nematanthus erianthus Benth. -- not accepted
  Nemesia strumosa Benth. -- accepted -- capejewels
  Nemophila maculata Benth. ex Lindl. -- accepted -- fivespot
  Nemophila menziesii ssp. insignis (Benth.) Brand -- not accepted
  Nemophila parviflora Douglas ex Benth. -- accepted -- smallflower blue-eyes, smallflower nemophila
  Nemophila parviflora var. parviflora Douglas ex Benth. -- accepted -- smallflower nemophila
  Nemophila pedunculata Douglas ex Benth. -- accepted -- littlefoot blue-eyes, littlefoot nemophila
  Neptunia lutea (Leavenw.) Benth. -- accepted -- yellow neptunia, yellow puff
  Neptunia plena (L.) Benth. -- accepted -- water dead and awake
  Neptunia pubescens Benth. -- accepted -- tropical neptunia, tropical puff
  Neptunia pubescens var. pubescens Benth. -- accepted -- tropical puff
  Notochloe microdon (Benth.) Domin -- accepted
  Notopleura (Benth. & Hook. f.) Bremek. -- accepted
  Ochlandra travancorica (Bedd.) Benth. ex Gamble -- accepted
  Octadesmia montana (Sw.) Benth. -- not accepted
  Oenothera hartwegii Benth. -- accepted
  Oenothera hartwegii ssp. hartwegii Benth. -- accepted -- Hartweg's sundrops
  Oldenlandia salzmannii (DC.) Benth. & Hook. f. ex B.D. Jacks. -- accepted -- Salzmann's mille graines
  Oreocharis Benth. -- accepted
  Oreocharis primuloides (Miq.) Benth. & Hook. f. ex C.B. Clarke -- accepted
  Orthocarpus bracteosus Benth. -- accepted -- rosy owl's-clover
  Orthocarpus campestris Benth. -- not accepted
  Orthocarpus castillejoides Benth. -- not accepted
  Orthocarpus castillejoides var. castillejoides Benth. -- not accepted -- johnnynip
  Orthocarpus densiflorus Benth. -- not accepted
  Orthocarpus densiflorus var. densiflorus Benth. -- not accepted -- Sierran foothill owlclover
  Orthocarpus densiflorus var. gracilis (Benth.) D.D. Keck -- not accepted
  Orthocarpus erianthus Benth. -- not accepted
  Orthocarpus erianthus var. erianthus Benth. -- not accepted -- johnnytuck
  Orthocarpus floribundus Benth. -- not accepted
  Orthocarpus hispidus Benth. -- not accepted
  Orthocarpus lacerus Benth. -- not accepted
  Orthocarpus lineariilobus Benth. -- not accepted
  Orthocarpus linearilobus Benth. -- not accepted
  Orthocarpus lithospermoides Benth. -- not accepted
  Orthocarpus lithospermoides var. lithospermoides Benth. -- not accepted -- creamsacs
  Orthocarpus pisillus Benth. -- not accepted
  Orthocarpus prupuracens Benth. -- not accepted
  Orthocarpus purpurascens Benth. -- not accepted
  Orthocarpus purpurascens var. purpurascens Benth. -- not accepted -- red owlclover
  Orthocarpus pusillus Benth. -- not accepted
  Orthocarpus tenuifolius (Pursh) Benth. -- accepted -- thinleaved owl's-clover
  Ortholoma acuminatum (Benth.) Hanst. -- not accepted
  Orthosiphon Benth. -- accepted
  Oryzopsis cuspidata (Nutt.) Benth. ex Vasey -- not accepted
  Oryzopsis miliacea (L.) Benth. & Hook. ex Asch. & Schweinf. -- not accepted
  Oryzopsis webberi (Thurb.) Benth. ex Vasey -- not accepted
  Osmanthus americanus (L.) Benth. & Hook. f. ex A. Gray -- accepted -- devilwood
  Osmanthus americanus var. americanus (L.) Benth. & Hook. f. ex A. Gray -- accepted -- American devilwood, devilwood
  Otophylla densiflora (Benth.) Small -- not accepted
  Oxybaphus laevis Benth. -- not accepted
  Paliavana prasinata (Ker Gawl.) Benth. -- accepted
  Paliavana sericiflora Benth. -- accepted
  Palicourea crocea var. riparia (Benth.) Griseb. -- not accepted
  Palicourea riparia Benth. -- not accepted
  Panicum californicum Benth. -- not accepted
  Panicum piligerum F. Muell. ex Benth. -- not accepted
  Panicum sphacelatum (Benth.) Steud. -- not accepted
  Papaver heterophyllum (Benth.) Green -- accepted -- windpoppy
  Paradrymonia glabra (Benth.) Hanst. -- not accepted
  Parkinsonia florida (Benth. ex A. Gray) S. Watson -- accepted -- blue palo verde, blue paloverde
  Parvisedum pumilum (Benth.) R.T. Clausen -- not accepted
  Passiflora filipes Benth. -- accepted -- slender passionflower
  Pectinaria (Benth.) Hack. -- not accepted
  Pedicularis angustifolia Benth. -- accepted -- Mogollon Mountain lousewort
  Pedicularis attenuata Benth. -- not accepted
  Pedicularis bracteosa Benth. -- accepted -- bracted lousewort
  Pedicularis bracteosa var. bracteosa Benth. -- accepted -- bracted lousewort
  Pedicularis contorta Benth. -- accepted -- coiled lousewort
  Pedicularis contorta var. contorta Benth. -- accepted -- coiled lousewort
  Pedicularis crenulata Benth. -- accepted -- meadow lousewort
  Pedicularis densiflora Benth. ex Hook. -- accepted -- Indian warrior
  Pedicularis densiflora ssp. densiflora Benth. ex Hook. -- not accepted -- Indian warrior
  Pedicularis groenlandica ssp. surrecta (Benth.) Piper -- not accepted -- Greenland lousewort
  Pedicularis groenlandica var. surrecta (Benth.) A. Gray -- not accepted
  Pedicularis ornithorhyncha Benth. -- accepted -- ducksbill lousewort
  Pedicularis racemosa Douglas ex Benth. -- accepted -- parrot's-beak, sickletop lousewort
  Pedicularis racemosa ssp. racemosa Douglas ex Benth. -- accepted -- sickletop lousewort
  Pedicularis subnuda Benth. -- not accepted
  Pedilanthus macrocarpus Benth. -- not accepted
  Pedilanthus retusus Benth. -- not accepted
  Pedilanthus tithymaloides ssp. retusus (Benth.) Dressler -- not accepted
  Peltanthera Benth. -- accepted
  Peltanthera floribunda Benth. -- accepted
  Peltiphyllum peltatum (Torr. ex Benth.) Engl. -- not accepted
  Peltophorum (Vogel) Benth. -- accepted
  Pennellia longifolia (Benth.) Rollins -- accepted -- long-leaf mock thelypody, longleaf mock thelypody
  Pennisetum macrostachyum Benth. -- not accepted
  Penstemon antirrhinoides Benth. -- not accepted
  Penstemon azureus Benth. -- accepted -- azure penstemon
  Penstemon azureus ssp. azureus Benth. -- not accepted -- azure penstemon
  Penstemon azureus var. azureus Benth. -- accepted -- beardtongue
  Penstemon barbatus ssp. torreyi (Benth.) D.D. Keck -- not accepted -- Torrey's penstemon
  Penstemon barbatus var. torreyi (Benth.) A. Gray -- accepted -- beardlip penstemon
  Penstemon centranthifolius (Benth.) Benth. -- accepted -- scarlet bugler
  Penstemon cordifolius Benth. -- not accepted
  Penstemon corymbosus Benth. -- not accepted
  Penstemon hartwegii Benth. -- accepted -- Hartweg's beardtongue
  Penstemon jamesii Benth. -- accepted -- James' beardtongue, James' penstemon
  Penstemon jamesii var. jamesii Benth. -- not accepted
  Penstemon lanceolatus Benth. -- accepted -- lanceleaf beardtongue
  Penstemon multiflorus (Benth) Chapm. ex Small -- accepted -- manyflower beardtongue
  Penstemon nitidus Douglas ex Benth. -- accepted -- waxleaf penstemon
  Penstemon nitidus var. nitidus Douglas ex Benth. -- accepted -- waxleaf penstemon
  Penstemon secundiflorus Benth. -- accepted -- sidebells penstemon
  Penstemon strictus Benth. -- accepted -- Rocky Mountain beardtongue, Rocky Mountain penstemon
  Penstemon strictus var. strictus Benth. -- not accepted
  Penstemon torreyi Benth. -- not accepted
  Pentaclethra Benth. -- accepted
  Pentaclethra macrophylla Benth. -- accepted -- oilbean tree
  Pentadenia strigosa (Benth.) Hanst. -- not accepted
  Pentaraphia acaulis (L.) Benth. & Hook. f. ex Fawc. -- not accepted
  Pentaraphia floribunda (Lem.) Benth. & Hook. f. ex Carrière -- not accepted
  Pentaraphia hispida (Benth.) Hanst. -- not accepted
  Pentas Benth. -- accepted
  Periandra Mart. ex Benth. -- accepted
  Periandra heterophylla Benth. -- accepted
  Perilla arguta Benth. -- not accepted
  Perilla frutescens var. crispa (Benth.) W. Deane -- accepted -- beefsteakplant
  Perityle Benth. -- accepted -- rock daisy, rockdaisy
  Perityle californica Benth. -- accepted -- California rockdaisy
  Perityle microglossa Benth. -- accepted -- shortray rockdaisy
  Perityle microglossa var. microglossa Benth. -- accepted -- shortray rockdaisy
  Perovskia atriplicifolia Benth. -- accepted -- Russian sage
  Phacelia brachyloba (Benth.) A. Gray -- accepted -- shortlobe phacelia
  Phacelia ciliata Benth. -- accepted -- Great Valley phacelia
  Phacelia ciliata var. ciliata Benth. -- accepted -- Great Valley phacelia
  Phacelia distans Benth. -- accepted -- distant phacelia, distant scorpion-weed
  Phacelia divaricata (Benth.) A. Gray -- accepted -- divaricate phacelia
  Phacelia douglasii (Benth.) Torr. -- accepted -- Douglas' phacelia
  Phacelia douglasii var. douglasii (Benth.) Torr. -- accepted -- Douglas' phacelia
  Phacelia grandiflora (Benth.) A. Gray -- accepted -- largeflower phacelia
  Phacelia malvifolia var. loasifolia (Benth.) Brand -- not accepted
  Phacelia phacelioides (Benth.) Brand -- accepted -- Mount Diablo phacelia, Mt. Diablo phacelia
  Phacelia tanacetifolia Benth. -- accepted -- facelia, fiddleneck, lacy phacelia, lacy scorpion-weed
  Phacelia viscida (Benth. ex Lindl.) Torr. -- accepted -- tacky phacelia
  Phaseolus filiformis Benth. -- accepted -- slimjim bean
  Phaseolus pedicellatus Benth. -- accepted -- Sonoran bean
  Phaseolus schottii Benth. -- not accepted
  Philadelphus californicus Benth. -- not accepted -- California mock orange
  Philadelphus lewisii ssp. californicus (Benth.) Munz -- not accepted
  Phinaea Benth. -- accepted
  Phinaea albolineata (Hook.) Benth. ex Hemsl. -- accepted
  Phinaea caripensis (Klotzsch ex Hanst.) Benth. & Hook. f. ex Soler. -- not accepted
  Phinaea parviflora (A. Braun & Bouché) Benth. & Hook. f. ex Soler. -- not accepted
  Phlox diffusa Benth. -- accepted -- spreading phlox
  Phlox diffusa ssp. diffusa Benth. -- accepted -- spreading phlox
  Phlox douglasii ssp. rigida (Benth.) Wherry -- not accepted
  Phlox floridana Benth. -- accepted -- Florida phlox
  Phlox rigida Benth. -- accepted -- stiff phlox
  Pholistoma membranaceum (Benth.) Constance -- accepted -- white fiestaflower
  Phragmites altissimus (Benth.) Mabille ex Debeaux -- not accepted
  Phygelius E. Mey. ex Benth. -- accepted -- Cape-fuchsia
  Phygelius capensis E. Mey. ex Benth. -- accepted -- Cape-fuchsia
  Phylloboea Benth. -- accepted
  Phyllostegia Benth. -- accepted
  Phyllostegia floribunda Benth. -- accepted -- Hawai'i phyllostegia
  Phyllostegia glabra (Gaudich.) Benth. -- accepted -- ulihi phyllostegia
  Phyllostegia glabra var. glabra (Gaudich.) Benth. -- accepted -- ulihi phyllostegia
  Phyllostegia glabra var. macraei (Benth.) Sherff -- not accepted
  Phyllostegia grandiflora (Gaudich.) Benth. -- accepted -- kapana
  Phyllostegia hirsuta Benth. -- accepted -- Molokai phyllostegia
  Phyllostegia macrophylla (Gaudich.) Benth. -- accepted -- largeleaf phyllostegia
  Phyllostegia mollis Benth. -- accepted -- Waianae Range phyllostegia
  Phyllostegia parviflora (Gaudich.) Benth. -- accepted -- smallflower phyllostegia
  Phyllostegia parviflora var. parviflora (Gaudich.) Benth. -- accepted -- smallflower phyllostegia
  Phyllostegia racemosa Benth. -- accepted -- kiponapona
  Phyllostegia vestita Benth. -- accepted -- streambed phyllostegia
  Phymaspermum parvifolium (DC.) Benth. & Hook. f. -- accepted
  Physalis crassifolia Benth. -- accepted -- thickleaf groundcherry, yellow nightshade groundcherry
  Physalis crassifolia var. crassifolia Benth. -- accepted -- yellow nightshade groundcherry
  Physostegia Benth. -- accepted -- lionsheart
  Physostegia floribunda Benth. -- not accepted
  Physostegia glabra (Gaudich.) Benth. -- not accepted
  Physostegia grandiflora (Gaudich.) Benth. -- not accepted
  Physostegia hirsuta Benth. -- not accepted
  Physostegia macrophylla (Gaudich.) Benth. -- not accepted
  Physostegia mollis Benth. -- not accepted
  Physostegia racemosa Benth. -- not accepted
  Physostegia vestita Benth. -- not accepted
  Physostegia virginiana (L.) Benth. -- accepted -- obedient plant, obedient-plant
  Physostegia virginiana ssp. virginiana (L.) Benth. -- accepted -- obedient plant, obedient-plant
  Picrorhiza Royle ex Benth. -- accepted
  Pieris floribunda (Pursh) Benth. & Hook. f. -- accepted -- mountain fetterbush
  Pieris mariana (L.) Benth. & Hook. f. -- not accepted
  Pieris nitida (W. Bartram ex Marshall) Benth. & Hook. f. -- not accepted
  Piloblephis rigida (W. Bartram ex Benth.) Raf. -- accepted -- wild pennyroyal
  Piptadenia falcata Benth. -- not accepted
  Piptadenia peregrina (L.) Benth. -- not accepted
  Pithecellobium dulce (Roxb.) Benth. -- accepted -- monkeypod
  Pithecellobium flexicaule (Benth.) J.M. Coult. -- not accepted
  Pithecellobium pallens (Benth.) Standl. -- not accepted
  Pithecellobium saman (Jacq.) Benth. -- not accepted
  Pithecellobium unguis-cati (L.) Benth. -- accepted -- catclaw blackbead
  Plagiobothrys canescens Benth. -- accepted -- valley popcornflower
  Plagiobothrys canescens var. canescens Benth. -- accepted -- valley popcornflower
  Platanus californica Benth. -- not accepted
  Platymiscium stipulare Benth. -- accepted
  Platystemon Benth. -- accepted -- creamcups
  Platystemon californicus Benth. -- accepted -- California creamcups, creamcups
  Platystemon californicus var. californicus Benth. -- not accepted -- California creamcups
  Platystigma Benth. -- not accepted -- queen poppy
  Platystigma linearis Benth. -- not accepted -- narrowleaf queen poppy
  Plectranthus blumei (Benth.) Launert -- not accepted
  Pleuraphis sericea Nutt. ex Benth. -- not accepted
  Pleuropogon californicus (Nees) Benth. ex Vasey -- accepted -- annual semaphoregrass
  Pleuropogon californicus var. californicus (Nees) Benth. ex Vasey -- accepted -- annual semaphoregrass
  Pleuropogon oregonus (Gray) Benth. -- not accepted
  Pleuropogon refractus (A. Gray) Benth. ex Vasey -- accepted -- nodding semaphoregrass
  Pleuropogon refractus var. refractus (A. Gray) Benth. ex Vasey -- not accepted
  Poa pauciflora (Thurb.) Benth. ex Vasey -- not accepted
  Poa pubiflora Benth. -- not accepted
  Poa scabrella (Thurb.) Benth. ex Vasey -- not accepted
  Poa setifolia Benth. -- not accepted
  Poa vaginalis Benth. -- not accepted
  Pogogyne Benth. -- accepted -- mesamint
  Pogogyne douglasii Benth. -- accepted -- Douglas' mesamint
  Pogogyne douglasii ssp. douglasii Benth. -- not accepted -- Douglas' mesamint
  Pogogyne douglasii ssp. parviflora (Benth.) J.T. Howell -- not accepted -- Douglas' mesamint
  Pogogyne ziziphoroides Benth. -- accepted -- Sacramento mesamint
  Pogogyne zizyphoroids Benth. -- not accepted
  Pogostemon cablin (Blanco) Benth. -- accepted -- patchouli
  Poinsettia eriantha (Benth.) Rose & Standl. -- not accepted
  Poinsettia radians (Benth.) Klotzsch & Garcke -- not accepted
  Poinsettia restiacea (Benth.) Dressler -- not accepted
  Polemoniella micrantha (Benth.) A. Heller -- not accepted
  Polemonium caeruleum var. pterospermum Benth. -- not accepted
  Polemonium micranthum Benth. -- accepted -- annual Jacob's-ladder, annual polemonium, littlebell Jacob's-ladder
  Pollinia willdenowiana (Nees ex Steud.) Benth. -- not accepted
  Polygala obscura Benth. -- accepted -- velvetseed milkwort
  Polyscias macgillivrayi (Benth.) Harms -- accepted
  Polytoca macrophylla Benth. -- not accepted
  Porophyllum gracile Benth. -- accepted -- slender poreleaf, yerba de venado
  Porophyllum latifolium Benth. -- not accepted
  Proboscidea althaeifolia (Benth.) Decne. -- accepted -- desert unicorn-plant, devils claw, devilshorn, straighttube devilsclaw
  Prosopis cinerascens (A. Gray) Benth. -- not accepted
  Prosopis denudans Benth. -- accepted -- mesquite
  Prosopis limensis Benth. -- not accepted
  Prosopis pubescens Benth. -- accepted -- screwbean, screwbean mesquite
  Prosopis reptans Benth. -- accepted -- creeping mesquite, tornillo
  Prosopis reptans var. reptans Benth. -- accepted -- tornillo
  Prosopis strombulifera (Lam.) Benth. -- accepted -- Argentine screwbean, creeping mesquite
  Prunella vulgaris var. elongata Benth. -- not accepted
  Prunella vulgaris var. hispida Benth. -- not accepted
  Prunus subcordata Benth. -- accepted -- Klamath plum
  Prunus subcordata var. subcordata Benth. -- not accepted -- Klamath plum
  Pseuderanthemum praecox (Benth.) Leonard -- accepted -- night and afternoon
  Pseudobahia bahiifolia (Benth.) Rydb. -- accepted -- Hartweg's golden sunburst
  Pseudorontium cyathiferum (Benth.) Rothm. -- accepted -- dog's-mouth
  Psilocarya corymbiformis Benth. -- not accepted
  Ptelea angustifolia Benth. -- not accepted
  Ptelea trifoliata ssp. angustifolia (Benth.) V.L. Bailey -- accepted -- common hoptree
  Ptelea trifoliata ssp. angustifolia var. angustifolia (Benth.) M.E. Jones -- not accepted
  Ptelea trifoliata var. angustifolia (Benth.) M.E. Jones -- accepted -- common hoptree, narrowleaf hoptree
  Pueraria lobata var. thomsonii (Benth.) Maesen -- not accepted
  Pueraria phaseoloides (Roxb.) Benth. -- accepted -- puero, tropical kudzu
  Pueraria thunbergiana (Siebold & Zucc.) Benth. -- not accepted -- kudzu
  Pycnanthemum hyssopifolium Benth. -- not accepted
  Pycnanthemum torrei Benth. -- accepted -- Torrey's mountainmint
  Pycnanthemum tullium Benth. -- not accepted
  Pycnothymus rigidus (W. Bartram ex Benth.) Small -- not accepted
  Quamoclidion laevis (Benth.) Rydb. -- not accepted
  Quercus hindsii Benth. -- not accepted
  Raillardella (A. Gray) Benth. -- accepted -- raillardella, silvermat
  Ramonda heldreichii (Boiss.) Benth. & Hook. f. ex C.B. Clarke -- not accepted
  Ranunculus alismifolius Geyer ex Benth. -- accepted -- dwarf buttercup, plantainleaf buttercup
  Ranunculus alismifolius var. alismifolius Geyer ex Benth. -- accepted -- plantainleaf buttercup
  Ranunculus californicus Benth. -- accepted -- California buttercup
  Ranunculus californicus var. californicus Benth. -- accepted -- California buttercup
  Ranunculus canus Benth. -- accepted -- Sacramento Valley buttercup
  Ranunculus canus var. canus Benth. -- accepted -- Sacramento Valley buttercup
  Rauvolfia serpentina (L.) Benth. ex Kurz -- accepted -- serpentine wood, snakewood
  Rechsteineria guazumaefolia (Benth.) Kuntze -- not accepted
  Rechsteineria stachydifolia (Benth.) Kuntze -- not accepted
  Reimaria oligostachya Munro ex Benth. -- not accepted
  Reimarochloa oligostachya (Munro ex Benth.) Hitchc. -- accepted -- Florida reimar grass
  Relbunium (Endl.) Benth. & Hook. f. -- not accepted
  Remya Hillebr. ex Benth. -- accepted -- remya
  Rhamnus californica ssp. tomentella (Benth.) C.B. Wolf -- accepted -- California buckthorn
  Rhamnus tomentella Benth. -- not accepted
  Rhamnus tomentella ssp. tomentella Benth. -- not accepted -- hoary coffeeberry
  Rhododon ciliatus (Benth.) Epling -- accepted -- Texas sandmint
  Rhus integrifolia (Nutt.) Benth. & Hook. f. ex W.H. Brewer & S. Watson -- accepted -- lemonade sumac
  Rhynchoglossum obliquum var. intermedium (Benth.) DC. -- not accepted
  Ribes glutinosum Benth. -- not accepted
  Ribes sanguineum var. glutinosum (Benth.) Louden -- accepted -- blood currant
  Ricinocarpos marginatus Benth. -- accepted
  Ricinocarpos rosmarinifolius Benth. -- accepted
  Roldana hartwegii (Benth.) H. Rob. & Brettell -- accepted -- Hartweg's groundsel
  Rottboellia ramosa (E. Fourn.) Benth. ex Hemsl. -- not accepted
  Rubus glaucus Benth. -- accepted -- Andes berry, raspberry
  Rytidosperma carphoides (F. Muell. ex Benth.) Connor & Edgar -- accepted
  Rytidosperma racemosum var. obtusatum (Benth.) Connor & Edgar -- accepted
  Sabatia maculata (Benth.) Benth. & Hook. f. -- not accepted
  Saccharum cayennense (P. Beauv.) Benth. -- not accepted
  Sairocarpus cornutus (Benth.) D.A. Sutton -- accepted -- spurred snapdragon
  Sairocarpus coulterianus (Benth. ex A. DC.) D.A. Sutton -- accepted -- Coulter's snapdragon
  Sairocarpus nuttallianus (Benth. ex A. DC.) D.A. Sutton -- accepted -- violet snapdragon, violet toad's-mouth
  Salix arguta var. lasiandra (Benth.) Andersson -- not accepted
  Salix brachystachys Benth. -- not accepted
  Salix exigua var. hindsiana (Benth.) Dorn -- accepted -- Hinds' willow
  Salix hindsiana Benth. -- not accepted -- Hinds' willow
  Salix lasiandra Benth. -- accepted -- Pacific willow
  Salix lasiandra var. lasiandra Benth. -- accepted -- Pacific willow
  Salix lasiolepis Benth. -- accepted -- arroyo willow
  Salix lasiolepis var. lasiolepis Benth. -- not accepted -- arroyo willow, Tracy's willow
  Salix lucida ssp. lasiandra (Benth.) A.E. Murray -- not accepted -- Pacific willow
  Salix scouleriana var. brachystachys (Benth.) M.E. Jones -- not accepted
  Salix sessilifolia ssp. hindsiana (Benth.) Andersson -- not accepted
  Salix sessilifolia var. hindsiana (Benth.) Andersson -- not accepted
  Salpingia hartwegii (Benth.) Raim. -- not accepted
  Salvia azurea ssp. pitcheri (Torr. ex Benth.) Epling -- not accepted
  Salvia azurea var. grandiflora Benth. -- accepted -- blue sage, Pitcher's sage
  Salvia ballotiflora Benth. -- accepted -- shrubby blue sage
  Salvia broussonetii Benth. -- accepted
  Salvia carduacea Benth. -- accepted -- thistle sage
  Salvia columbariae Benth. -- accepted -- chia
  Salvia columbariae var. columbariae Benth. -- accepted -- California sage, chia
  Salvia dorrii ssp. dorrii var. incana (Benth.) Strachan -- not accepted -- purple sage
  Salvia dorrii var. incana (Benth.) Strachan -- accepted -- purple sage
  Salvia farinacea Benth. -- accepted -- mealycup sage
  Salvia farinacea var. farinacea Benth. -- not accepted -- mealycup sage
  Salvia grahamii Benth. -- not accepted
  Salvia leptophylla Benth. -- accepted -- slenderleaf sage
  Salvia longistyla Benth. -- accepted -- Mexican sage
  Salvia palaestina Benth. -- accepted
  Salvia pallida Benth. -- accepted -- pale sage
  Salvia pitcheri Torr. ex Benth. -- not accepted
  Salvia privoides Benth. -- not accepted
  Salvia subincisa Benth. -- accepted -- saw-tooth sage, sawtooth sage
  Samanea (Benth.) Merr. -- accepted -- raintree
  Sarcostemma crispum Benth. -- not accepted -- wavyleaf twinevine
  Satureja chamissonis (Benth.) Briq. -- not accepted
  Satureja douglasii (Benth.) Briq. -- not accepted -- yerba buena
  Satureja mimuloides (Benth.) Briq. -- not accepted -- monkeyflower savory
  Satureja rigida W. Bartram ex Benth. -- not accepted
  Saxifraga peltata Torr. ex Benth. -- not accepted
  Schaffnera Benth. -- not accepted
  Schaffnera gracilis Benth. -- not accepted
  Schaffnerella gracilis (Benth.) Nash -- not accepted
  Schistophragma Benth. ex Endl. -- accepted
  Scirpus pungens var. longisetus Benth. & F. Muell. -- not accepted
  Scleria caricina Benth. -- not accepted -- nutrush
  Sclerocarpus uniserialis (Benth.) Hemsl. -- accepted -- Mexican bonebract
  Sclerocarpus uniserialis var. uniserialis (Benth.) Hemsl. -- not accepted -- Mexican bonebract
  Scleropogon karwinskyanus (E. Fourn.) Benth. ex S. Watson -- not accepted
  Scutellaria antirrhinoides Benth. -- accepted -- nose skullcap
  Scutellaria coerulea Moc. & Sessé ex Benth. -- not accepted -- blue skullcap
  Scutellaria drummondii Benth. -- accepted -- Drummond's skullcap
  Scutellaria drummondii var. drummondii Benth. -- accepted -- Drummond's skullcap
  Scutellaria galericulata ssp. pubescens (Benth.) Á. Löve & D. Löve -- not accepted
  Scutellaria galericulata var. pubescens Benth. -- not accepted
  Scutellaria incana ssp. hispida (Benth.) Epling -- not accepted
  Scutellaria integrifolia var. hispida Benth. -- not accepted
  Scutellaria microphylla Moc. & Sessé ex Benth. -- accepted -- littleleaf skullcap
  Scutellaria ovata ssp. bracteata (Benth.) Epling -- accepted -- heartleaf skullcap
  Scutellaria ovata var. bracteata Benth. -- not accepted
  Scutellaria saxatilis var. pilosior Benth. -- not accepted
  Scutellaria tuberosa Benth. -- accepted -- Danny's skullcap
  Scutellaria tuberosa var. tuberosa Benth. -- not accepted
  Sedella pumila (Benth.) Britton & Rose -- accepted -- Sierra mock stonecrop
  Senecio douglasii ssp. longilobus (Benth.) W.A. Weber -- not accepted
  Senecio douglasii var. longilobus (Benth.) L.D. Benson -- not accepted
  Senecio hartwegii Benth. -- not accepted
  Senecio hartwegii Benth. -- not accepted
  Senecio longilobus Benth. -- not accepted
  Senegalia berlandieri (Benth.) Britton & Rose -- accepted -- guajillo
  Senegalia emoryana (Benth.) Britton & Rose -- not accepted
  Senegalia recurva (Benth.) Seigler & Ebinger -- accepted -- catch and keep
  Senegalia wrightii (Benth.) Britton & Rose -- not accepted
  Senna aciphylla (Benth.) Randell -- accepted
  Senna artemisioides ssp. circinnata (Benth.) Randell -- not accepted
  Senna artemisioides ssp. zygophylla (Benth.) Randell -- not accepted
  Senna coronilloides (Benth.) Randell -- accepted
  Senna hirsuta var. leptocarpa (Benth.) H.S. Irwin & Barneby -- accepted
  Serianthes Benth. -- accepted
  Sesbania marginata Benth. -- not accepted
  Sesbania punicea (Cav.) Benth. -- accepted -- rattlebox
  Sidalcea hartwegii A. Gray ex Benth. -- accepted -- valley checkerbloom
  Sidalcea malviflora (DC.) A. Gray ex Benth. -- accepted -- dwarf checkerbloom
  Sidalcea malviflora ssp. malviflora (DC.) A. Gray ex Benth. -- accepted -- dwarf checkerbloom
  Sideroxylon sandwicense (A. Gray) Benth. & Hook. ex Hillebr. -- not accepted -- 'ala'a
  Sieglingia acuminata (Benth. ex Vasey) Kuntze -- not accepted
  Sinningia carolinae (Wawra) Benth. & Hook. f. ex Seibert & Voss -- not accepted
  Sinningia gracilis (Mart.) Benth. & Hook. f. ex Fritsch -- not accepted
  Sinningia macrophylla (Nees & Mart.) Benth. & Hook. f. ex Fritsch -- accepted
  Sinningia maximiliana (Hanst.) Benth. & Hook. ex Fritsch -- accepted
  Solanum cataphractum A. Cunn. ex Benth. -- accepted
  Solanum cunninghamii Benth. -- accepted
  Solanum densevestitum F. Muell. ex Benth. -- accepted
  Solanum hindsianum Benth. -- accepted -- Hinds' nightshade
  Solanum leiophyllum Benth. -- accepted
  Solanum phlomoides A. Cunn. ex Benth. -- accepted
  Solanum wrightii Benth. -- accepted
  Solenophora Benth. -- accepted
  Solenophora coccinea Benth. -- accepted
  Sophora tomentosa var. littoralis (Schrad.) Benth. -- accepted -- yellow necklacepod
  Sophronanthe hispida Benth. ex Lindl. -- not accepted
  Spartina leiantha Benth. -- not accepted
  Spermolepis divaricata (Benth. & Hook. f. ex S. Watson) Raf. ex Ser. -- accepted -- forked scaleseed, roughfruit scaleseed
  Spiranthes adnata (Sw.) Benth. ex Fawc. -- not accepted -- hachuela
  Spodiopogon obliquivalvis var. villosus Benth. -- not accepted
  Sporobolus virginicus var. pallidus Benth. -- not accepted
  Stachys ajugoides Benth. -- accepted -- bugle hedgenettle
  Stachys ajugoides var. ajugoides Benth. -- not accepted -- hedge nettle
  Stachys bullata Benth. -- accepted -- California hedgenettle
  Stachys chamissonis Benth. -- accepted -- coastal hedgenettle
  Stachys chamissonis var. chamissonis Benth. -- accepted -- coastal hedgenettle
  Stachys ciliata Douglas ex Benth. -- not accepted
  Stachys drummondii Benth. -- accepted -- Drummond's hedgenettle
  Stachys floridana Shuttlw. ex Benth. -- accepted -- Florida betony, Florida hedgenettle
  Stachys grandiflora (Stephan ex Willd.) Benth. -- not accepted -- big-sage
  Stachys mexicana Benth. -- accepted -- Mexican hedgenettle
  Stachys nuttallii Shuttlw. ex Benth. -- not accepted -- heartleaf hedgenettle
  Stachys pycnantha Benth. -- accepted -- shortspike hedgenettle
  Stachys rigida Nutt. ex Benth. -- accepted -- rigid hedgenettle, rough hedgenettle
  Stachys rigida var. rigida Nutt. ex Benth. -- accepted -- rough hedgenettle
  Stauranthera Benth. -- accepted
  Stauranthera grandiflora Benth. -- accepted
  Stauranthera grandifolia Benth. -- not accepted
  Stegnosperma Benth. -- accepted
  Stemodia lanata Ruiz & Pav. ex Benth. -- accepted -- gray-woolly twintip, Stemodia lanata
  Stenandrium fasciculare auct. non (Benth.) Wassh. -- not accepted
  Stenandrium fascicularis (Benth.) Wassh. -- not accepted
  Stenogyne Benth. -- accepted
  Stenogyne macrantha Benth. -- accepted -- Hawai'i stenogyne
  Stenogyne microphylla Benth. -- accepted -- littleleaf stenogyne
  Stenogyne rugosa Benth. -- accepted -- ma`ohi`ohi
  Stenogyne scrophularioides Benth. -- accepted -- mohihi
  Stenogyne scrophularioides var. nelsonii (Benth.) Sherff -- not accepted
  Stenogyne sessilis Benth. -- accepted -- fuzzyflower stenogyne
  Stenolobium caeruleum Benth. -- not accepted
  Stephanomeria virgata Benth. -- accepted -- rod wirelettuce, tall wirelettuce
  Stephanomeria virgata ssp. virgata Benth. -- accepted -- rod wirelettuce
  Stipa rariflora (Hook. f.) Benth. -- not accepted
  Streptanthus longifolius Benth. -- not accepted
  Streptosolen jamesonii (Benth.) Miers -- accepted -- marmalade bush
  Striga densiflora (Benth.) Benth. -- accepted -- denseflower witchweed, witchweed
  Striga hermonthica (Delile) Benth. -- accepted -- purple witchweed, witchweed
  Strophostyles pauciflora (Benth.) S. Watson -- not accepted
  Strychnos toxifera Schomb. ex Benth. -- accepted -- strychnine
  Stylomecon heterophylla (Benth.) G. Taylor -- not accepted -- windpoppy
  Stylosanthes guianensis var. subviscosa Benth. -- not accepted
  Swertia albicaulis var. nitida (Benth.) Jeps. -- not accepted
  Swertia nitida (Benth.) Jeps. -- not accepted
  Synthyris Benth. -- accepted -- kittentails
  Synthyris plantaginea (E. James) Benth. -- accepted -- White River kittentails
  Synthyris reniformis (Douglas ex Benth.) Benth. -- accepted -- snowqueen
  Synthyris reniformis var. reniformis (Douglas ex Benth.) Benth. -- not accepted -- snowqueen
  Synthyris rubra (Douglas ex Hook.) Benth. -- accepted -- red kittentails
  Tabebuia aurea (Silva Manso) Benth. & Hook. f. ex S. Moore -- accepted -- Caribbean trumpet-tree
  Tephrosia nitens Benth. ex Seem. -- accepted
  Terminalia muelleri Benth. -- accepted -- Australian almond
  Thaumatococcus Benth. -- accepted -- thaumatococcus
  Thaumatococcus daniellii (Benn.) Benth. -- accepted -- miracle fruit
  Thelypodium longifolium (Benth.) S. Watson -- not accepted
  Thryallis angustifolia (Benth.) Kuntze -- not accepted
  Thunbergia erecta (Benth.) T. Anderson -- accepted -- bush clockvine
  Thurberia Benth. -- not accepted
  Thurberia arkansana (Nutt.) Benth. ex Vasey -- not accepted
  Thysanocarpus radians Benth. -- accepted -- ribbed fringepod
  Tillaea leptopetala Benth. -- not accepted
  Tipuana (Benth.) Benth. -- accepted
  Tipuana tipu (Benth.) Kuntze -- accepted -- tipa, tipa blanca, tiputree
  Tithymalodes macrocarpum (Benth.) Kuntze -- not accepted
  Tithymalodes retusum (Benth.) Kuntze -- not accepted
  Tithymalopsis sphaerorhiza (Benth.) Klotzsch & Garcke -- not accepted
  Tithymalus macrocarpus (Benth.) Croizat -- not accepted
  Tomanthera densiflora (Benth.) Pennell -- not accepted
  Tonella tenella (Benth.) A. Heller -- accepted -- lesser baby innocence
  Trevirana patens (Benth.) Walp. -- not accepted
  Trevirana pedunculata (Benth.) Vis. -- not accepted
  Tricerma phyllanthoides (Benth.) Lundell -- not accepted
  Trichachne californica (Benth.) Chase -- not accepted
  Trichantha acuminata (Benth.) Wiehler -- not accepted
  Trichloris E. Fourn. ex Benth. -- accepted
  Trichopteryx flammida (Trin.) Benth. -- not accepted
  Trichostema lanatum Benth. -- accepted -- woolly bluecurls
  Trichostema lanceolatum Benth. -- accepted -- vinegarweed
  Trichostema oblongum Benth. -- accepted -- oblong bluecurls
  Trichosterigma californicum (Benth.) Klotzsch & Garcke -- not accepted
  Trichosterigma hindsianum (Benth.) Klotzsch & Garcke -- not accepted
  Trichosterigma miserum (Benth.) Klotzsch & Garcke -- not accepted
  Trifolium ciliolatum Benth. -- accepted -- foothill clover
  Trigonotis peduncularis (Trevis.) Benth. ex Baker & S. Moore -- accepted -- cucumber herb
  Triodia acuminata Benth. ex Vasey -- not accepted
  Triodia ambigua (Elliott) Benth. ex Vasey -- not accepted
  Triodia stricta (Nutt.) Benth. ex Vasey -- not accepted
  Triphysaria eriantha (Benth.) T.I. Chuang & Heckard -- accepted -- johnny-tuck
  Triphysaria eriantha ssp. eriantha (Benth.) T.I. Chuang & Heckard -- accepted -- johnny-tuck
  Triphysaria floribunda (Benth.) T.I. Chuang & Heckard -- accepted -- San Francisco owl's-clover
  Triphysaria pusilla (Benth.) T.I. Chuang & Heckard -- accepted -- dwarf owl's-clover
  Triplasis cornuta Benth. ex W.D. Jacks. -- not accepted
  Tripsacum lanceolatum Rupr. ex Benth. -- not accepted
  Trisetum andinum Benth. -- accepted
  Trisetum spicatum ssp. andinum (Benth.) Hultén -- not accepted
  Trisetum spicatum var. andinum (Benth.) Louis-Marie -- not accepted
  Triteleia laxa Benth. -- accepted -- Ithuriel's spear
  Tropaeolum peltophorum Benth. -- accepted -- shield nasturtium
  Tussacia rupestris Benth. -- not accepted
  Tussacia villosa Benth. -- not accepted
  Tydaea picta (Benth. ex Hook.) Decne. -- not accepted
  Urera obovata Benth. -- accepted -- urera
  Urochloa piligera (F. Muell. ex Benth.) R.D. Webster -- accepted -- wattle signalgrass
  Vachellia choriophylla (Benth.) Seigler & Ebinger -- accepted -- cinnecord
  Vachellia constricta (Benth.) Seigler & Ebinger -- accepted -- whitethorn acacia
  Vachellia gerrardii (Benth.) P.J.H. Hurter -- accepted
  Vachellia rigidula (Benth.) Seigler & Ebinger -- accepted -- blackbrush acacia
  Vachellia xanthophloea (Benth.) P.J.H. Hurter -- accepted -- fevertree
  Vandellia ellobum Benth. -- not accepted
  Verbena ciliata Benth. -- not accepted
  Verbena menthifolia Benth. -- accepted -- mint vervain
  Verbesina encelioides (Cav.) Benth. & Hook. f. ex A. Gray -- accepted -- golden crownbeard
  Verbesina encelioides ssp. encelioides (Cav.) Benth. & Hook. f. ex A. Gray -- not accepted -- golden crownbeard
  Veronica americana Schwein. ex Benth. -- accepted -- American speedwell, brooklime
  Vetiveria nigritana (Benth.) Stapf -- not accepted -- black vetivergrass
  Vigna lasiocarpa (Mart. ex Benth.) Verdc. -- accepted
  Vigna longifolia (Benth.) Verdc. -- accepted -- longleaf cowpea
  Vigna luteola (Jacq.) Benth. -- accepted -- Dalrymple vigna, deer pea, hairypod cowpea
  Viola lobata Benth. -- accepted -- pine violet
  Viola lobata ssp. lobata Benth. -- not accepted -- pine violet
  Viola lobata var. lobata Benth. -- accepted -- moosehorn violet, pine violet
  Virola elongata (Benth.) Warb. -- accepted
  Virola theiodora (Spruce ex Benth.) Warb. -- not accepted
  Vitis californica Benth. -- accepted -- California grape, California wild grape
  Whitia carnosa Benth. & Hook. f. -- not accepted
  Wullschlaegelia calcarata Benth. -- accepted
  Xanthocephalum gymnospermoides (A. Gray) Benth. & Hook. f. -- accepted -- matchweed, San Pedro matchweed
  Xylobium palmifolium (Sw.) Benth. -- not accepted -- goatmouth orchid
  Zigadenus volcanicus Benth. -- not accepted -- lava deathcamas
  Zornia diphylla var. leptophylla Benth. -- not accepted
  Zornia leptophylla (Benth.) Pittier -- accepted -- horsekiller, narrow-leaved viperina
 
 Kingdom Bacteria
  Microchaete pulchella (Humboldt, Bonpland, Kunth) Benth -- valid
   

A gray bar