The ITIS Logo The Search Results banner for the ITIS Data pages

Taxon author: Rose

ITIS records citing taxon author "Rose"
 
 Kingdom Animalia
  Acanthaspis livingstonei Vennison and Ambrose, 1988 -- valid
  Acanthaspis nigricans Ambrose, 1994 -- valid
  Acanthaspis philomanmariae Vennison and Ambrose, 1988 -- valid
  Acanthemblemaria stephensi Rosenblatt and McCosker, 1988 -- valid
  Acrocephalus stentoreus levantinus Roselaar, 1994 -- valid
  Agriocleptes wygodzinskyi Prosen and Martínez, 1953 -- valid
  Agromyza humeralis Roser, 1840 -- invalid
  Alectonidae Rosell, 1996 -- valid
  Alurnus boucardi Rosenberg, 1898 -- valid
  Alurnus costalis Rosenberg, 1898 -- valid
  Alurnus humeralis Rosenberg, 1898 -- valid
  Alurnus sexguttatus Rosenberg, 1898 -- valid
  Ancistronycha occipitalis (Rosenhauer, 1847) -- valid
  Anodonta anatina raddei Rosen, 1914 -- invalid
  Anodonta falcata fluviatica Rosen, 1905 -- invalid
  Anolis casildae Arosemena, Ibáñez and de Sousa, 1991 -- valid -- Casilda's Anole
  Anolis fortunensis Arosemena and Ibáñez, 1993 -- valid
  Anthomyia albiseta Roser, 1840 -- invalid
  Anthomyia univittata Roser, 1840 -- invalid
  Aphthona lacertosa Rosenhauer, 1847 -- valid
  Apiomerus arnaui fulvomarginatus Carcavallo, Martínez and Prosen, 1964 -- valid
  Apiomerus costalimai Prosen and Martínez, 1955 -- valid
  Apiomerus fritzi Prosen, Carcavallo and Martínez, 1959 -- valid
  Apiomerus navajasi Prosen, Martínez and Carcavallo, 1962 -- valid
  Apiomerus vallejosae Carcavallo, Martínez and Prosen, 1964 -- valid
  Apiomerus velazcoi Prosen, Carcavallo and Martínez, 1959 -- valid
  Apiomerus willineri Carcavallo, Martínez and Prosen, 1964 -- valid
  Atriophallophorus Deblock and Rose, 1964 -- valid
  Attagenus lobatus Rosenhauer, 1856 -- valid
  Aulopoidei Rosen, 1973 -- invalid
  Baclozygum brevipilosum Rose, 1965 -- valid
  Brachyrhaphis hartwegi Rosen and Bailey, 1963 -- valid -- guayacón de Soconusco, Soconusco gambusia
  Bramocharax baileyi Rosen, 1972 -- valid
  Bramocharax dorioni Rosen, 1970 -- valid
  Cacatua goffiniana C. S. Roselaar & Michaels, 2004 -- valid -- Tanimbar Corella
  Cacosternum platys Rose, 1950 -- valid
  Calidris maritima belcheri Engelmoer & Roselaar, 1998 -- valid
  Callechelys eristigma McCosker and Rosenblatt, 1972 -- valid -- spotted ridgefin eel, tieso aquillado manchado
  Callechelys galapagensis McCosker and Rosenblatt, 1972 -- valid
  Calycomyza humeralis (Roser, 1840) -- valid -- aster leafminer
  Carduelis chloris voousi Roselaar, 1993 -- invalid
  Carlhubbsia stuarti Rosen and Bailey, 1959 -- valid
  Ceryle rudis syriacus Roselaar, 1995 -- valid
  Chalcopsitta atra bernsteini H. K. B. Rosenberg, 1861 -- valid
  Chloris chloris voousi (Roselaar, 1993) -- valid
  Coranus nodulosus Ambrose and Sahayaraj, 1993 -- valid
  Coranus soosaii Ambrose and Vennison, 1989 -- valid
  Corvus rhipidurus stanleyi Roselaar, 1993 -- valid
  Cottoclinus McCosker, Stephens and Rosenblatt, 2003 -- valid
  Cottoclinus canops McCosker, Stephens and Rosenblatt, 2003 -- valid
  Crossidius humeralis quadrivittatus Penrose, 1974 -- valid
  Crossidius suturalis melanipennis Penrose, 1984 -- valid
  Deronectes depressicollis (Rosenhauer, 1856) -- valid
  Deronectes hispanicus (Rosenhauer, 1856) -- valid
  Desmodema lorum Rosenblatt and Butler, 1977 -- valid -- listoncillo látigo, whiptail ribbonfish
  Diplectrum eumelum Rosenblatt and Johnson, 1974 -- valid -- orange-spotted sand perch, serrano carabonita
  Diplectrum labarum Rosenblatt and Johnson, 1974 -- valid -- highfin sand perch, serrano espinudo
  Dipsas infrenalis Rosen, 1905 -- invalid
  Doliornis remseni Robbins, G. H. Rosenberg & F. S. Molina, 1994 -- valid -- Chestnut-bellied Cotinga
  Drosophila testacea Roser, 1840 -- valid
  Echiodon exsilium Rosenblatt, 1961 -- valid -- nocturnal pearlfish, perlero nocturno
  Ectomocoris xavierei Vennison and Ambrose, 1990 -- valid
  Eleutherodactylus museosus Ibáñez, Jaramillo and Arosemena, 1994 -- invalid
  Enneanectes altivelis Rosenblatt, 1960 -- valid -- lofty triplefin, sapito barreado, tres aletas de barras
  Enneanectes atrorus Rosenblatt, 1960 -- valid -- blackedge triplefin, blackedge triplefin, sapito orleado, tres aletas orlado
  Enneanectes boehlkei Rosenblatt, 1960 -- valid -- roughhead triplefin, sapito rugoso, tres aletas rugoso
  Eremophila alpestris kumerloevei Roselaar, 1995 -- valid
  Ethadophis Rosenblatt and McCosker, 1970 -- valid
  Ethadophis byrnei Rosenblatt and McCosker, 1970 -- valid -- ordinary eel, tieso de Cortés
  Ethadophis merenda Rosenblatt and McCosker, 1970 -- valid -- snack eel, tieso merienda
  Eurycea aquatica Rose and Bush, 1963 -- valid -- Brown-backed Salamander, Dark-sided Salamander
  Eustomias gibbsi Johnson and Rosenblatt, 1971 -- valid
  Gallicolumba rufigula helviventris (H. K. B. Rosenberg, 1866) -- valid
  Gambusia atrora Rosen and Bailey, 1963 -- valid -- blackfin gambusia, guayacón de San Luis
  Gambusia luma Rosen and Bailey, 1963 -- valid
  Gerhardia hollisi (Cohen, Rosenblatt and Moser, 1990) -- valid
  Gopherus evgoodei Edwards, Karl, Vaughn, Rosen, Meléndez Torres and Murphy, 2016 -- valid -- Goode's Thornscrub Tortoise
  Gymnocrex plumbeiventris hoeveni (H. K. B. Rosenberg, 1866) -- valid
  Helcogramma capidata Rosenblatt in Schultz, Chapman, Lachner and Woods, 1960 -- invalid
  Helcogramma capidatum Rosenblatt in Schultz, Chapman, Lachner and Woods, 1960 -- valid
  Helcogramma chica Rosenblatt in Schultz et al., 1960 -- valid
  Helcogrammoides Rosenblatt in Gon in Gon and Heemstra, 1990 -- valid
  Heniartes rodialbertoi Carcavallo, Martínez and Prosen, 1960 -- valid
  Heniartes wygodzinskyi Carcavallo, Martínez and Prosen, 1960 -- valid
  Henicophaps albifrons schlegeli (H. K. B. Rosenberg, 1866) -- valid
  Heterandria anzuetoi Rosen and Bailey in Rosen, 1979 -- valid
  Heterandria attenuata Rosen and Bailey in Rosen, 1979 -- valid
  Heterandria cataractae Rosen, 1979 -- valid
  Heterandria dirempta Rosen, 1979 -- valid
  Heterandria litoperas Rosen and Bailey in Rosen, 1979 -- valid
  Heterandria obliqua Rosen, 1979 -- valid
  Heteroconger canabus (Cowan and Rosenblatt, 1974) -- valid -- Cape garden eel, congrio del Cabo
  Hydraena intermedia Rosenhauer, 1847 -- valid
  Hypocacculus curtus (Rosenhauer, 1847) -- valid
  Hypocacculus elongatulus (Rosenhauer, 1856) -- valid
  Hypocacculus elongatulus elongatulus (Rosenhauer, 1856) -- valid
  Icelinus limbaughi Rosenblatt and Smith, 2004 -- valid
  Labidocoris tuberculatus Ambrose and Vennison, 1993 -- valid
  Labrisomus pomaspilus Springer and Rosenblatt, 1965 -- valid
  Laricobius Rosenhauer, 1846 -- valid
  Laricobius erichsoni Rosenhauer, 1846 -- valid
  Lasiognathus waltoni Nolan and Rosenblatt, 1975 -- valid
  Lepidopus fitchi Rosenblatt and Wilson, 1987 -- valid -- black scabbardfish, Fitch's scabbardfish, Pacific scabbardfish, pez cinto
  Lepidopus manis Rosenblatt and Wilson, 1987 -- valid -- ghost scabbardfish
  Lepus granatensis Rosenhauer, 1856 -- valid -- Granada Hare, Iberian Hare, Liebre Ibérica
  Lepus granatensis granatensis Rosenhauer, 1856 -- valid
  Leucosticte sillemi Roselaar, 1992 -- valid -- Sillem's Mountain Finch
  Leuropharus Rosenblatt and McCosker, 1970 -- valid
  Leuropharus lasiops Rosenblatt and McCosker, 1970 -- valid -- acned snake eel, tieso pustuloso
  Limosa lapponica taymyrensis Engelmoer & Roselaar, 1998 -- valid
  Littorina keenae Rosewater, 1978 -- valid -- eroded periwinkle
  Matsuichthys aequipinnis (Matsui and Rosenblatt, 1987) -- valid
  Maulisia argipalla Matsui and Rosenblatt, 1979 -- valid
  Maulisia isaacsi Matsui and Rosenblatt, 1987 -- valid
  Mccoskerichthys Rosenblatt and Stephens, 1978 -- valid
  Mccoskerichthys sandae Rosenblatt and Stephens, 1978 -- valid
  Megapodius cumingii talautensis C. S. Roselaar, 1994 -- valid
  Megapodius freycinet oustaleti C. S. Roselaar, 1994 -- valid
  Mentodus bythios (Matsui and Rosenblatt, 1987) -- valid
  Mentodus eubranchus (Matsui and Rosenblatt, 1987) -- valid
  Mentodus mesalirus (Matsui and Rosenblatt, 1987) -- valid
  Microtriatoma Prosen and Martínez, 1952 -- valid
  Mycteroperca prionura Rosenblatt and Zahuranec, 1967 -- valid -- cabrilla chiruda, sawtail grouper
  Myrichthys aspetocheiros McCosker and Rosenblatt, 1993 -- valid -- longfin spotted snake eel, tieso aletón
  Neohaematorrhophus Ambrose and Livingstone, 1986 -- valid
  Neohaematorrhophus therasii Ambrose and Livingstone, 1986 -- valid
  Neohaematorrhophus therasis Ambrose and Livingstone, 1986 -- invalid
  Neonagusta Ambrose and Kumaraswami, 1992 -- valid
  Neonagusta bituberculata Ambrose and Kumaraswami, 1992 -- valid
  Neovillanovanus Ambrose and Vennison, 1992 -- valid
  Neovillanovanus macrotrichiatus Ambrose and Vennison, 1992 -- valid
  Nops farhati Prosen, 1949 -- valid
  Nothobranchius kafuensis Wildekamp and Rosenstock, 1989 -- valid
  Ochthebius corrugatus Rosenhauer, 1856 -- valid
  Ochthebius metallescens Rosenhauer, 1847 -- valid
  Ochthebius metallescens metallescens Rosenhauer, 1847 -- valid
  Ochthebius notabilis Rosenhauer, 1856 -- valid
  Ochthebius serratus Rosenhauer, 1856 -- valid
  Oithona frigida pseudofrigida Rosendorn, 1917 -- valid
  Oithona hamata Rosendorn, 1917 -- valid
  Oithona tenuis Rosendorn, 1917 -- valid
  Oncocephalus anniei Ambrose and Vennison, 1989 -- valid
  Ophichthus apachus McCosker and Rosenblatt, 1998 -- valid -- thin snake eel, tieso delgado
  Ophichthus arneutes McCosker and Rosenblatt, 1998 -- valid
  Ophichthus longipenis McCosker and Rosenblatt, 1998 -- valid -- slender snake eel, tieso fino
  Ophichthus mecopterus McCosker and Rosenblatt, 1998 -- valid -- longarmed snake eel, tieso brazo largo
  Ophichthus melope McCosker and Rosenblatt, 1998 -- valid
  Ophichthus tetratrema McCosker and Rosenblatt, 1998 -- valid
  Ophisternon aenigmaticum Rosen and Greenwood, 1976 -- valid -- anguila falsa, obscure swamp eel, swamp eel
  Otiorhynchus desertus Rosenhauer, 1847 -- valid
  Oulimnius rivularis (Rosenhauer, 1856) -- valid
  Paraclinus ditrichus Rosenblatt and Parr, 1969 -- valid -- leastfoot blenny, trambollito pocas patas
  Paraclinus magdalenae Rosenblatt and Parr, 1969 -- valid -- Magdalena blenny, trambollito de Magdalena
  Paraclinus stephensi Rosenblatt and Parr, 1969 -- valid -- professor blenny, trambollito del maestro
  Paraclinus tanygnathus Rosenblatt and Parr, 1969 -- valid -- longjaw blenny, trambollito adornado
  Paramphiascella fulvofasciata Rosenfield and Coull, 1974 -- valid
  Parmops Rosenblatt and Johnson, 1991 -- valid
  Parmops coruscans Rosenblatt and Johnson, 1991 -- valid
  Parmops echinatus Johnson, Seeto and Rosenblatt, 2001 -- valid
  Pellisolus eubranchus Matsui and Rosenblatt, 1987 -- invalid
  Percnostola rufifrons jensoni A. P. Capparella, G. H. Rosenberg & Cardiff, 1997 -- valid
  Phallichthys fairweatheri Rosen and Bailey, 1959 -- valid -- picotee livebearer, topo
  Pholis clemensi Rosenblatt, 1964 -- valid -- longfin gunnel
  Phthanophaneron Johnson and Rosenblatt, 1988 -- valid
  Phthanophaneron harveyi (Rosenblatt and Montgomery, 1976) -- valid -- ojo de linterna panámica, Panamic flashlightfish
  Pleuroleptus rothi (Rosenhauer, 1856) -- valid
  Pluvialis squatarola tomkovichi Engelmoer & Roselaar, 1998 -- valid
  Porichthys ephippiatus Walker and Rosenblatt, 1988 -- valid -- saddle midshipman, sapo ensillado
  Porichthys mimeticus Walker and Rosenblatt, 1988 -- valid -- mimetic midshipman, sapo mimético
  Porichthys oculellus Walker and Rosenblatt, 1988 -- valid
  Pristimantis museosus (Ibáñez, Jaramillo and Arosemena, 1994) -- valid
  Pseudelaphe Mertens and Rosenberg, 1943 -- valid
  Pyrrhula pyrrhula paphlagoniae Roselaar, 1995 -- valid
  Pythonichthys asodes Rosenblatt and Rubinoff, 1972 -- valid -- anguila de fango del Pacífico, Pacific mud eel
  Rhynocoris kumarii Ambrose and Livingstone, 1986 -- valid
  Sciurocheirus makandensis Ambrose, 2013 -- valid -- Makandé Squirrel Galago
  Scolichthys Rosen, 1967 -- valid
  Scolichthys greenwayi Rosen, 1967 -- valid
  Scolichthys iota Rosen, 1967 -- valid
  Searsioides calvala (Matsui and Rosenblatt, 1979) -- valid
  Sphecotheres vieilloti cucullatus (H. K. B. Rosenberg, 1866) -- valid
  Starksia fulva Rosenblatt and Taylor, 1971 -- valid
  Starksia galapagensis Rosenblatt and Taylor, 1971 -- valid
  Starksia grammilaga Rosenblatt and Taylor, 1971 -- valid -- pinstriped blenny, trambollito estilográfo
  Starksia hoesei Rosenblatt and Taylor, 1971 -- valid -- hose blenny, trambollito manguera
  Starksia lepidogaster Rosenblatt and Taylor, 1971 -- valid -- scalybelly blenny, trambollito panza escamosa
  Starksia posthon Rosenblatt and Taylor, 1971 -- valid -- brownspotted blenny, trambollito moteado
  Stenolemus annulatus Mukherjee, Ambrose, Hassan and Biswas, 2015 -- valid
  Sternocoelis hispanus (Rosenhauer, 1856) -- valid
  Synbranchus madeirae Rosen and Rumney, 1972 -- valid
  Talegalla cuvieri granti C. S. Roselaar, 1994 -- valid
  Talegalla fuscirostris aruensis C. S. Roselaar, 1994 -- valid
  Talegalla fuscirostris meyeri C. S. Roselaar, 1994 -- valid
  Thaumastocoris busso Noack, Cassis and Rose, 2011 -- valid
  Thaumastocoris freomooreae Noack, Cassis and Rose, 2011 -- valid
  Thaumastocoris kalaako Noack, Cassis and Rose, 2011 -- valid
  Thaumastocoris macqueeni Rose, 1965 -- valid
  Thaumastocoris majeri Noack, Cassis and Rose, 2011 -- valid
  Thaumastocoris nadeli Noack, Cassis and Rose, 2011 -- valid
  Thaumastocoris ohallorani Noack, Cassis and Rose, 2011 -- valid
  Thaumastocoris roy Noack, Cassis and Rose, 2011 -- valid
  Thaumastocoris safordi Noack, Cassis and Rose, 2011 -- valid
  Thaumastocoris slateri Noack, Cassis and Rose, 2011 -- valid
  Thermarces Rosenblatt and Cohen, 1986 -- valid
  Thermarces andersoni Rosenblatt and Cohen, 1986 -- valid
  Thermarces cerberus Rosenblatt and Cohen, 1986 -- valid
  Tragularius Matsui and Rosenblatt, 1987 -- invalid
  Trypeta inulae Roser, 1840 -- invalid
  Trypeta leontodontis var. nesii Roser, 1840 -- invalid
  Trypeta unimaculata Roser, 1840 -- invalid
  Volzia Rosell & Uriz, 1997 -- valid
  Xenomedea Rosenblatt and Taylor, 1971 -- valid
  Xenomedea rhodopyga Rosenblatt and Taylor, 1971 -- valid -- redrump blenny, trambollito nalga roja
  Xenopus gilli Rose and Hewitt, 1927 -- valid
  Xiphophorus alvarezi Rosen, 1960 -- valid -- Chiapas swordtail, espada de Comitán
  Xiphophorus cortezi Rosen, 1960 -- valid -- delicate swordtail, espada fina
  Xiphophorus evelynae Rosen, 1960 -- valid -- espada del Necaxa, reticulate platyfish
  Xiphophorus milleri Rosen, 1960 -- valid -- Catemaco platyfish, espada de Catemaco
  Xiphophorus nigrensis Rosen, 1960 -- valid -- espada pigmea El Abra, Panuco swordtail
  Xiphophorus signum Rosen and Kallman, 1969 -- valid
  Zylobus seabrai Prosen and Martínez, 1958 -- invalid
 
 Kingdom Fungi
  Leptosphaeria chondri Rosenvinge -- not accepted
 
 Kingdom Plantae
  Acacia angustissima var. shrevei (Britton & Rose) Isely -- accepted -- Shreve prairie acacia, Shreve's prairie acacia
  Acacia angustissima var. suffrutescens (Rose) Isely -- accepted -- prairie acacia
  Acacia hirta ssp. lemmonii (Rose) Wiggins -- not accepted
  Acacia lemmonii Rose -- not accepted
  Acacia willardiana Rose -- not accepted
  Acaciella hirta (Nutt.) Britton & Rose -- not accepted
  Acaciella shrevei Britton & Rose -- not accepted
  Acaciopsis Britton & Rose -- not accepted
  Acaciopsis rigidula (Benth.) Britton & Rose -- not accepted
  Acanthocereus (Engelm. ex A. Berger) Britton & Rose -- accepted -- triangle cactus
  Acanthocereus albicaulis Britton & Rose -- not accepted
  Acanthocereus colombianus Britton & Rose -- not accepted
  Acanthocereus floridanus Small ex Britton & Rose -- not accepted
  Acanthocereus horridus Britton & Rose -- not accepted
  Acanthocereus occidentalis Britton & Rose -- not accepted
  Acanthocereus pentagonus (L.) Britton & Rose -- not accepted
  Acanthocereus subinermis Britton & Rose -- not accepted
  Acanthorhipsalis (K. Schum.) Britton & Rose -- not accepted
  Achimenes fimbriata Rose ex C.V. Morton -- accepted
  Adipera bicapsularis (L.) Britton & Rose ex Britton & P. Wilson -- not accepted
  Adipera corymbosa (Lam.) Britton & Rose -- not accepted
  Adipera laevigata (Willd.) Britton & Rose ex Britton & P. Wilson -- not accepted
  Adipera stahlii (Urb.) Britton & Rose ex Britton & P. Wilson -- not accepted
  Agrostis lenis Roseng., B.R. Arrill. & Izag. -- accepted
  Albizia adinocephala (Donn. Sm.) Britton & Rose ex Record -- accepted -- cream albizia
  Aletes J.M. Coult. & Rose -- accepted -- Indian parsley
  Aletes acaulis (Torr.) J.M. Coult. & Rose -- accepted -- stemless Indian parsley
  Aletes davidsonii J.M. Coult. & Rose -- not accepted
  Aletes eastwoodiae (J.M. Coult. & Rose) W.A. Weber -- not accepted
  Aletes hendersonii (J.M. Coult. & Rose) W.A. Weber -- not accepted
  Aletes humilis J.M. Coult. & Rose -- accepted -- Colorado aletes
  Aletes macdougalii J.M. Coult. & Rose -- accepted -- MacDougal's aletes, MacDougal's Indian parsley, MacDougal's Indian-parsley
  Aletes macdougalii ssp. macdougalii J.M. Coult. & Rose -- accepted -- MacDougal's Indian parsley
  Aletes scabra (J.M. Coult. & Rose) W.A. Weber -- not accepted
  Allowissadula lozanii (Rose) D.M. Bates -- accepted -- Lozano's false Indianmallow
  Alsine obtusa (Engelm.) Rose -- not accepted
  Alsophila apiculata Rosenst. -- not accepted
  Alsophila atrovirens f. acuminata Rosenstingl -- not accepted
  Alsophila atrovirens var. acuminata Rosenst. -- not accepted
  Alsophila atrovirens var. ciliato-palacea Rosenst. -- not accepted
  Alsophila atrovirens var. furcativenia Rosenst. -- not accepted
  Alsophila atrovirens var. major Rosenst. -- not accepted
  Alsophila atrovirens var. minor Rosenst. -- not accepted
  Alsophila atrovirens var. patula Rosenst. -- not accepted
  Alsophila atrovirens var. rigida Rosenst. -- not accepted
  Alsophila atrovirens var. squamulosa Rosenst. -- not accepted
  Alsophila atrovirens var. subcordata Rosenst. -- not accepted
  Alsophila biformis Rosenst. -- not accepted
  Alsophila foersteri (Rosenst.) R.M. Tryon -- not accepted
  Alsophila geluensis (Rosenst.) R.M. Tryon -- not accepted
  Alsophila guinleorum Brade & Rosenst. -- accepted
  Alsophila mapiriensis Rosenst. -- not accepted
  Alsophila microphylloides (Rosenst.) R.M. Tryon -- not accepted
  Alsophila pallida Rosenst. -- not accepted
  Alsophila paulistana Rosenst. -- not accepted
  Alsophila proceroides Rosenst. -- not accepted
  Alsophila pruinosa (Rosenst.) R.M. Tryon -- not accepted
  Alsophila rigens (Rosenst.) R.M. Tryon -- not accepted
  Alsophila roquettei Brade & Rosenst. -- accepted
  Alsophila verruculosa Rosenst. -- not accepted
  Ammoselinum butleri (Engelm. ex S. Watson) J.M. Coult. & Rose -- accepted -- Butler's sandparsley
  Ammoselinum giganteum J.M. Coult. & Rose -- accepted -- sand parsley, western sand-parsley, western sandparsley
  Ampelopsis mexicana Rose -- accepted -- Mexican peppervine
  Ancistrocactus (K. Schum.) Britton & Rose -- not accepted
  Ancistrocactus brevihamatus (Engelm.) Britton & Rose -- not accepted
  Ancistrocactus megarrhizus (Rose) Britton & Rose -- not accepted
  Ancistrocactus scheeri (Salm-Dyck) Britton & Rose -- not accepted
  Andropogon glaucophyllus Roseng., B.R. Arrill. & Izag. -- accepted
  Angelica canbyi J.M. Coult. & Rose -- accepted -- Canby's angelica
  Angelica dentata (Chapm.) J.M. Coult. & Rose -- accepted -- coastal plain angelica, coastalplain angelica
  Angelica grayi (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- Gray's angelica
  Angelica hendersonii J.M. Coult. & Rose -- accepted -- Henderson's angelica
  Angelica kingii (S. Watson) J.M. Coult. & Rose -- accepted -- King's angelica
  Angelica tomentosa var. hendersonii (J.M. Coult. & Rose) Di Tomaso -- not accepted
  Antennaria alpina var. intermedia Rosenv. -- not accepted
  Antennaria intermedia (Rosenv.) A.E. Porsild -- not accepted
  Anthocerotidae Rosenv. -- accepted
  Antirrhinum kingii var. watsonii (Vasey & Rose) Munz -- not accepted
  Antirrhinum watsonii Vasey & Rose -- not accepted
  Apiastrum patens (Nutt. ex DC.) J.M. Coult. & Rose -- not accepted
  Aporocactus conzattii Britton & Rose -- not accepted
  Aporocactus leptophis (DC.) Britton & Rose -- not accepted
  Aporocactus martianus Britton & Rose -- not accepted
  Arceuthobium tsugense (Rosend.) G.N. Jones -- not accepted -- hemlock dwarf mistletoe
  Arceuthobium tsugense ssp. tsugense (Rosend.) G.N. Jones -- not accepted -- hemlock dwarf mistletoe
  Arequipa Britton & Rose -- not accepted
  Ariocarpus fissuratus var. lloydii (Rose) W.T. Marshall -- not accepted
  Aristida echinulata Roseng. & Izag. -- accepted
  Armatocereus cartwrightianus (Britton & Rose) Backeb. -- accepted
  Armatocereus godingianus (Britton & Rose) Backeb. -- accepted
  Armatocereus godingianus ssp. godingianus (Britton & Rose) Backeb. -- accepted
  Armatocereus humilis (Britton & Rose) Backeb. -- not accepted
  Armatocereus laetus (Britton & Rose) Backeb. -- accepted
  Arrojadoa Britton & Rose -- accepted
  Arrojadoa penicillata (Gürke) Britton & Rose -- accepted
  Arrojadoa rhodantha (Gürke) Britton & Rose -- accepted
  Artemisia tridentata ssp. xericensis Winward ex R. Rosentreter & R. Kelsey -- not accepted -- big sagebrush
  Asplenium radicans var. cirrhatum (Rich. ex Willd.) Rosenst. -- not accepted
  Aster orcuttii Vasey & Rose -- not accepted
  Astragalus blyae (Rose ex Rydb.) Tidestr. -- not accepted
  Astragalus newberryi var. blyae (Rose ex Rydb.) Barneby -- accepted -- Bly milkvetch, Newberry's milkvetch
  Astragalus nuttallianus var. cedrosensis (Vasey & Rose) M.E. Jones -- accepted -- Cedros Island milkvetch, turkey peas, turkeypeas
  Astrophytum capricorne (A. Dietr.) Britton & Rose -- accepted
  Astrophytum ornatum (DC.) Britton & Rose -- accepted
  Aulospermum rosei M.E. Jones ex J.M. Coult. & Rose -- not accepted
  Austrocactus Britton & Rose -- accepted
  Austrocactus bertinii (Cels ex Hérincq) Britton & Rose -- accepted
  Austrocylindropuntia shaferi (Britton & Rose) Backeb. -- accepted
  Axonopus argentinus ssp. glabripes (Parodi) Roseng., B.R. Arrill. & Izag. -- not accepted
  Axonopus argentinus ssp. pubiflorus (Parodi) Roseng., B.R. Arrill. & Izag. -- not accepted
  Ayenia compacta Rose -- accepted -- California ayenia, compact ayenia
  Batesimalva violacea (Rose) Fryxell -- accepted -- purple gay-mallow, purple gaymallow
  Bauhinia congesta (Britton & Rose) Lundell -- not accepted
  Bergerocactus Britton & Rose -- accepted -- snakecactus
  Bergerocactus emoryi (Engelm.) Britton & Rose -- accepted -- golden snakecactus, Órgano aterciopelado
  Bergerocereus emoryi (Engelm.) Britton & Rose -- not accepted
  Billieturnera helleri (Rose ex A. Heller) Fryxell -- accepted -- coppery false fanpetals
  Blechnum francii Rosenst. -- accepted
  Blechnum obtusatum var. francii (Rosenst.) Brownlie -- not accepted
  Borzicactus acanthurus (Vaupel) Britton & Rose -- not accepted
  Borzicactus aurivillus (K. Schum.) Britton & Rose -- not accepted
  Borzicactus decumbens (Vaupel) Britton & Rose -- not accepted
  Borzicactus fieldianus Britton & Rose -- not accepted
  Borzicactus icosagonus (Kunth) Britton & Rose -- not accepted
  Borzicactus morleyanus Britton & Rose -- not accepted
  Borzicactus plagiostoma (Vaupel) Britton & Rose -- not accepted
  Borzicactus sepium (Kunth) Britton & Rose -- not accepted
  Bowlesia septentrionalis J.M. Coult. & Rose -- not accepted
  Boykinia heucheriformis (Rydb.) Rosend. -- not accepted -- alumroot brookfoam
  Brachycereus Britton & Rose -- accepted
  Brasiliopuntia bahiensis (Britton & Rose) A. Berger -- not accepted
  Briza bidentata Roseng., B.R. Arrill. & Izag. -- not accepted
  Briza parodiana Roseng., B.R. Arrill. & Izag. -- not accepted
  Briza rufa var. sparsipilosa Roseng., B.R. Arrill. & Izag. -- not accepted
  Briza subaristata var. interrupta (Hack.) Roseng., B.R. Arrill. & Izag. -- not accepted
  Bromus brachyantherus ssp. uruguayensis (Arechav.) Roseng., B.R. Arrill. & Izag. -- not accepted
  Browningia Britton & Rose -- accepted
  Browningia candelaris (Meyen) Britton & Rose -- accepted
  Browningia candelaris ssp. candelaris (Meyen) Britton & Rose -- accepted
  Bupleurum americanum J.M. Coult. & Rose -- accepted -- American thorow wax
  Cactus broadwayi Britton & Rose -- not accepted
  Caesalpinia pumila (Britton & Rose) F.J. Herm. -- accepted
  Calamagrostis alba ssp. tricholemma Roseng., B.R. Arrill. & Izag. -- accepted
  Calochlaena novae-guineae (Rosenstock) M.D. Turner & R.A. White -- accepted
  Carnegia Britton & Rose -- not accepted
  Carnegia gigantea (Engelm.) Britton & Rose -- not accepted
  Carnegiea Britton & Rose -- accepted -- saguaro
  Carnegiea gigantea (Engelm.) Britton & Rose -- accepted -- Saguaro, saguaro
  Casparea congesta Britton & Rose -- not accepted
  Caspareopsis monandra (Kurz) Britton & Rose -- not accepted
  Casparia congesta Britton & Rose -- not accepted
  Cassia antillana (Britton & Rose) Alain -- not accepted
  Cassia durangensis Rose -- not accepted
  Cassia fasciculata var. ferrisiae (Britton ex Britton & Rose) B.L. Turner -- not accepted
  Cassia orcuttii (Britton & Rose) B.L. Turner -- not accepted
  Castela texana (Torr. & A. Gray) Rose -- accepted
  Ceanothus cuneatus var. submontanus (Rose) McMinn -- not accepted
  Ceiba acuminata (S. Watson) Rose -- not accepted -- pochote
  Cephalocereus alensis (F.A.C. Weber ex Rol.-Goss.) Britton & Rose -- not accepted
  Cephalocereus arrabidae (Lem.) Britton & Rose -- not accepted
  Cephalocereus barbadensis Britton & Rose -- not accepted
  Cephalocereus brasiliensis Britton & Rose -- not accepted
  Cephalocereus brooksianus Britton & Rose -- not accepted
  Cephalocereus catingicola (Gürke) Britton & Rose -- not accepted
  Cephalocereus chrysacanthus (F.A.C. Weber) Britton & Rose -- not accepted
  Cephalocereus collinsii Britton & Rose -- not accepted
  Cephalocereus colombianus Rose -- not accepted
  Cephalocereus dybowskii (Rol.-Goss.) Britton & Rose -- not accepted
  Cephalocereus fluminensis (Miq.) Britton & Rose -- not accepted
  Cephalocereus gaumeri Britton & Rose -- not accepted
  Cephalocereus gounellei (F.A.C. Weber ex K. Schum.) Britton & Rose -- not accepted
  Cephalocereus keyensis Britton & Rose -- not accepted
  Cephalocereus lanuginosus (L.) Britton & Rose -- not accepted
  Cephalocereus leucocephalus (Poselg.) Britton & Rose -- not accepted
  Cephalocereus leucostele (Gürke) Britton & Rose -- not accepted
  Cephalocereus maxonii Rose -- not accepted
  Cephalocereus monoclonos (DC.) Britton & Rose -- not accepted
  Cephalocereus moritzianus (Otto) Britton & Rose -- not accepted
  Cephalocereus nobilis (Haw.) Britton & Rose -- not accepted
  Cephalocereus palmeri Rose -- not accepted
  Cephalocereus pentaedrophorus (Labour.) Britton & Rose -- not accepted
  Cephalocereus phaeacanthus (Gürke) Britton & Rose -- not accepted
  Cephalocereus piauhyensis (Gürke) Britton & Rose -- not accepted
  Cephalocereus polygonus (Lam.) Britton & Rose -- not accepted
  Cephalocereus polylophus (DC.) Britton & Rose -- not accepted
  Cephalocereus purpusii Britton & Rose -- not accepted
  Cephalocereus robinii (Lem.) Britton & Rose -- not accepted
  Cephalocereus robustus Britton & Rose -- not accepted
  Cephalocereus royenii (L.) Britton & Rose -- not accepted
  Cephalocereus russelianus (Rümpler) Rose -- not accepted
  Cephalocereus sartorianus Rose -- not accepted
  Cephalocereus scoparius (Polseg.) Britton & Rose -- not accepted
  Cephalocereus smithianus Britton & Rose -- not accepted
  Cephalocereus swartzii (Griseb.) Britton & Rose -- not accepted
  Cephalocereus tweedyanus Britton & Rose -- not accepted
  Cephalocereus zehnteri Britton & Rose -- not accepted
  Ceratocolax Rosenvinge, 1898 -- accepted
  Ceratocolax hartzi Rosenvinge -- accepted
  Cercidium microphyllum (Torr.) Rose & I.M. Johnst. -- not accepted
  Cercis canadensis ssp. mexicana (Rose) A.E. Murray -- not accepted
  Cercis canadensis var. mexicana (Rose) M. Hopkins -- accepted -- Mexican redbud
  Cereus albicaulis (Britton & Rose) Leutzelb. -- accepted
  Cereus argentinensis Britton & Rose -- accepted
  Cereus diffusus (Britton & Rose) Werderm. -- not accepted
  Cereus eriophorus var. fragrans (Small ex Britton & Rose) L.D. Benson -- not accepted -- fragrant prickly-apple
  Cereus gracilis var. simpsonii (Small ex Britton & Rose) L.D. Benson -- not accepted -- Simpson's prickly-apple
  Cereus grenadensis Britton & Rose -- not accepted
  Cereus robinii var. keyensis (Britton & Rose) L.D. Benson -- not accepted
  Cereus smithianus (Britton & Rose) Werderm. -- not accepted
  Chaerophyllum floridanum (J.M. Coult. & Rose) Bush -- not accepted
  Chaerophyllum procumbens var. tainturieri (Hook.) J.M. Coult. & Rose -- not accepted
  Chaerophyllum tainturieri var. floridanum J.M. Coult. & Rose -- not accepted
  Chaerophyllum texanum J.M. Coult. & Rose -- not accepted
  Chaetobolus Rosenvinge, 1893 -- accepted
  Chaetobolus gibbus Rosenvinge, 1893 -- accepted
  Chaetotropis parvula (Roseng., B.R. Arrill. & Izag.) Nicora -- not accepted
  Chamaecereus Britton & Rose -- not accepted
  Chamaecereus silvestrii (Speg.) Britton & Rose -- not accepted
  Chamaecrista chamaecristoides var. cruziana (Britton & Rose) H.S. Irwin & Barneby -- accepted -- beach sensitive pea
  Chamaecrista cruziana Britton & Rose -- not accepted
  Chamaecrista mohrii (Pollard) Small ex Britton & Rose -- not accepted
  Chamaefistula antillana Britton & Rose -- not accepted
  Chamaesyce carmenensis (Rose) Millsp. -- not accepted
  Chamaesyce pediculifera (Engelm.) Rose & Standl. -- not accepted -- Carrizo Mountain sandmat
  Chascolytrum parodianum (Roseng., B.R. Arrill. & Izag.) Matthei -- accepted
  Chiapasia Britton & Rose -- not accepted
  Chiapasia nelsonii (Britton & Rose) Britton & Rose -- not accepted
  Chionophila tweedyi (Canby & Rose) L.F. Hend. -- accepted -- Tweedy's snowlover
  Chloris brevipila Roseng. & Izag. -- not accepted
  Chloris canterae var. grandiflora (Roseng. & Izag.) D.E. Anderson -- accepted
  Chloris canterai var. grandiflora (Roseng. & Izag.) D.E. Anderson -- not accepted -- Paraguayan windmill grass
  Chloris glabrescens (Hack.) Roseng. & Izag. -- not accepted
  Chloris grandiflora Roseng. & Izag. -- not accepted
  Chloris parodiana Roseng. & Izag. -- not accepted
  Chrysosplenium beringianum Rose -- not accepted
  Chrysosplenium wrightii var. beringianum (Rose) H. Hara -- not accepted -- Wright's golden saxifrage
  Cicuta curtissii J.M. Coult. & Rose -- not accepted
  Cicuta douglasii (DC.) J.M. Coult. & Rose -- accepted -- Douglas' waterhemlock, water hemlock, western water hemlock
  Cicuta maculata var. curtissii (J.M. Coult. & Rose) Fernald -- not accepted
  Cicuta mexicana J.M. Coult. & Rose -- not accepted
  Cleistocactus anguinus (Gürke) Britton & Rose -- not accepted
  Cleistocactus fieldianus (Britton & Rose) D.R. Hunt -- accepted
  Cleistocactus fieldianus ssp. fieldianus (Britton & Rose) D.R. Hunt -- accepted
  Cleistocactus smaragdiflorus (F.A.C. Weber) Britton & Rose -- accepted
  Clematis palmeri Rose -- not accepted -- Palmer's clematis, Palmer's leather flower
  Clementsia rhodantha (A. Gray) Rose -- not accepted
  Clistanthocereus fieldianus (Britton & Rose) Backeb. -- not accepted
  Cochemiea halei (Brandegee) Britton & Rose -- not accepted
  Cochemiea poselgeri (Hildm.) Britton & Rose -- not accepted
  Coelopleurum actaeifolium (Michx.) J.M. Coult. & Rose -- not accepted
  Cogswellia foeniculacea (Nutt.) J.M. Coult. & Rose -- not accepted
  Cogswellia orientalis (J.M. Coult. & Rose) M.E. Jones -- not accepted
  Cojoba Britton & Rose -- accepted
  Cojoba arborea (L.) Britton & Rose -- accepted -- wild tamarind
  Cojoba graciliflora (S.F. Blake) Britton & Rose -- accepted -- Guadeloupe blackbead
  Cologania pallida Rose -- accepted -- pale cologania
  Columnea elegans (Rose ex C.V. Morton) C.V. Morton -- not accepted
  Conioselinum gmelinii (Cham. & Schlecht.) J.M. Coult. & Rose -- not accepted
  Conioselinum mexicanum J.M. Coult. & Rose -- accepted -- Mexican hemlock-parsley, Mexican hemlockparsley
  Conioselinum pacificum (S. Watson) J.M. Coult. & Rose -- not accepted
  Conioselinum pumilum Rose -- not accepted
  Conioselinum scopulorum (A. Gray) J.M. Coult. & Rose -- accepted -- Rocky Mountain hemlock-parsley, Rocky Mountain hemlockparsley
  Copiapoa Britton & Rose -- accepted
  Copiapoa cinerascens (Salm-Dyck) Britton & Rose -- accepted
  Copiapoa cinerea (Phil.) Britton & Rose -- accepted
  Copiapoa cinerea ssp. cinerea (Phil.) Britton & Rose -- accepted
  Copiapoa coquimbana (Karw. ex Rümpler) Britton & Rose -- accepted
  Copiapoa echinoides (Lem.) Britton & Rose -- accepted
  Copiapoa marginata (Salm-Dyck) Britton & Rose -- accepted
  Copiapoa megarhiza Britton & Rose -- accepted
  Copiapoa megarhiza var. megarhiza Britton & Rose -- accepted
  Coriflora palmeri (Rose) W.A. Weber -- not accepted
  Corryocactus Britton & Rose -- accepted
  Corryocactus brachypetalus (Vaupel) Britton & Rose -- accepted
  Corryocactus brevistylus (K. Schum. ex Vaupel) Britton & Rose -- accepted
  Corryocactus brevistylus ssp. brevistylus (K. Schum. ex Vaupel) Britton & Rose -- not accepted
  Corryocactus melanotrichus (K. Schum.) Britton & Rose -- accepted
  Corylus californica (A. DC.) Rose -- not accepted
  Corynopuntia vilis (Rose) F.M. Knuth -- accepted
  Coryphantha aggregata (Engelm.) Britton & Rose -- not accepted
  Coryphantha arizonica (Engelm. ex Brew & Wats) Britton & Rose -- not accepted
  Coryphantha bumamma (Ehrenb.) Britton & Rose -- not accepted
  Coryphantha chaffeyi (Britton & Rose) Fosberg -- not accepted -- Chaffey's cory cactus
  Coryphantha chlorantha (Engelm.) Britton & Rose -- not accepted
  Coryphantha compacta (Engelm.) Britton & Rose -- accepted
  Coryphantha connivens Britton & Rose -- not accepted
  Coryphantha cubensis Britton & Rose -- not accepted
  Coryphantha deserti (Engelm.) Britton & Rose -- not accepted
  Coryphantha durangensis (Runge ex K. Schum.) Britton & Rose -- accepted
  Coryphantha durangensis ssp. durangensis (Runge ex K. Schum.) Britton & Rose -- accepted
  Coryphantha echinoidea (Quehl) Britton & Rose -- accepted
  Coryphantha echinus (Engelm.) Britton & Rose -- not accepted -- Biznaga-partida erizo, rhinoceros cactus
  Coryphantha guerkeana (Boed.) Britton & Rose -- not accepted
  Coryphantha macromeris ssp. runyonii (Britton & Rose) N.P. Taylor -- accepted
  Coryphantha macromeris var. runyonii (Britton & Rose) L.D. Benson -- not accepted -- Runyon's beehive cactus
  Coryphantha missouriensis (Sweet) Britton & Rose -- not accepted
  Coryphantha muehlenpfordtii (Poselg.) Britton & Rose -- not accepted
  Coryphantha neomexicana (Engelm.) Britton & Rose -- not accepted
  Coryphantha nickelsiae (K. Brandegee) Britton & Rose -- accepted -- Biznaga-partida de Laredo, Nickels' cactus
  Coryphantha octacantha (DC.) Britton & Rose -- accepted
  Coryphantha pallida Britton & Rose -- accepted
  Coryphantha pallida ssp. pallida Britton & Rose -- accepted
  Coryphantha palmeri Britton & Rose -- not accepted
  Coryphantha pectinata (Engelm.) Britton & Rose -- not accepted
  Coryphantha poselgeriana (A. Dietr.) Britton & Rose -- accepted
  Coryphantha radians (DC.) Britton & Rose -- not accepted
  Coryphantha recurvata (Engelm.) Britton & Rose -- accepted -- Biznaga-partida de espinas curvas, Santa Cruz beehive cactus
  Coryphantha retusa (Pfeiff.) Britton & Rose -- accepted
  Coryphantha robustispina (A. Schott ex Engelm.) Britton & Rose -- accepted -- Biznaga-partida de espinas gruesas
  Coryphantha robustispina ssp. robustispina (A. Schott ex Engelm.) Britton & Rose -- accepted
  Coryphantha runyonii Britton & Rose -- not accepted
  Coryphantha salm-dyckiana (Scheer) Britton & Rose -- not accepted
  Coryphantha similis (Engelm.) Britton & Rose -- not accepted
  Coryphantha sneedii (Britton & Rose) A. Berger -- not accepted
  Coryphantha sneedii (Britton & Rose) A. Berger -- not accepted -- Sneed pincushion cactus
  Coryphantha sneedii var. leei (Rose ex Boed.) L.D. Benson -- not accepted -- Lee pincushion cactus
  Coryphantha sneedii var. sneedii (Britton & Rose) A. Berger -- not accepted -- Sneed pincushion cactus
  Coryphantha sulcata (Engelm.) Britton & Rose -- accepted -- finger cactus, pineapple cactus
  Coryphantha sulcata var. sulcata (Engelm.) Britton & Rose -- not accepted -- pineapple cactus
  Coryphantha vivipara (Nutt.) Britton & Rose -- not accepted
  Coursetia axillaris J.M. Coult. & Rose -- accepted -- Texas babybonnets
  Crassula longipes (Rose) Bywater & Wickens -- accepted -- smallseed pygmyweed
  Croton alamosanus Rose -- accepted
  Croton arenicola Rose & Standl. -- not accepted
  Cumulopuntia ignota (Britton & Rose) F. Ritter -- not accepted
  Cyathea albidosquamata Rosenst. -- accepted
  Cyathea apiculata (Rosenst.) Domin -- accepted
  Cyathea bahiensis Rosenst. -- not accepted
  Cyathea biformis (Rosenst.) Copel. -- accepted
  Cyathea bulligera (Rosenst.) Domin -- not accepted
  Cyathea caracasana var. boliviensis (Rosenst.) R.M. Tryon -- not accepted
  Cyathea foersteri Rosenst. -- accepted
  Cyathea geluensis Rosenst. -- accepted
  Cyathea herzogii Rosenst. -- accepted
  Cyathea iheringii (Rosenst.) Domin -- not accepted
  Cyathea micromera Rosenst. -- not accepted
  Cyathea microphyllodes Rosenst. -- not accepted
  Cyathea microphylloides Rosenst. -- accepted
  Cyathea phalerata var. iheringii (Rosenst.) -- not accepted
  Cyathea phalerata var. l'heringii (Rosenst.) -- not accepted
  Cyathea pruinosa Rosenst. -- accepted
  Cyathea rigens Rosenst. -- accepted
  Cyathea squarrosa (Rosenst.) Domin -- accepted
  Cyathea tenggerensis (Rosenst.) Domin -- accepted
  Cyathea werneri Rosenst. -- accepted
  Cybistax donnell-smithii (Rose) Seibert -- not accepted
  Cylindropuntia alamosensis (Britton & Rose) Backeb. -- not accepted
  Cylindropuntia alcahes var. burrageana (Britton & Rose) Rebman -- accepted
  Cylindropuntia burrageana (Britton & Rose) Backeb. -- not accepted
  Cylindropuntia caribaea (Britton & Rose) F.M. Knuth -- accepted
  Cylindropuntia lloydii (Rose) F.M. Knuth -- not accepted
  Cylindropuntia pallida (Rose) F.M. Knuth -- accepted
  Cylindropuntia X viridiflora (Britton & Rose) F.M. Knuth -- accepted
  Cylindropuntia X vivipara (Rose) F.M. Knuth -- accepted
  Cymopterus bakeri (J.M. Coult. & Rose) M.E. Jones -- not accepted
  Cymopterus davidsonii (J.M. Coult. & Rose) R.L. Hartm. -- not accepted -- Davidson's wavewing
  Cymopterus hendersonii (J.M. Coult. & Rose) Cronquist -- not accepted
  Cymopterus jonesii J.M. Coult. & Rose -- accepted -- Jones' springparsley
  Cymopterus lemmonii (J.M. Coult. & Rose) Dorn -- not accepted
  Cymopterus macdougalii (J.M. Coult. & Rose) Tidestr. -- not accepted
  Cymopterus multinervatus (J.M. Coult. & Rose) Tidestr. -- accepted -- Arizona springparsley, purplenerve springparsley, wild parsnip
  Cymopterus panamintensis J.M. Coult. & Rose -- accepted -- Panamint springparsley
  Cymopterus panamintensis var. acutifolius (J.M. Coult. & Rose) Munz -- accepted -- Panamint springparsley
  Cymopterus panamintensis var. panamintensis J.M. Coult. & Rose -- accepted -- Panamint springparsley
  Cymopterus purpureus var. jonesii (J.M. Coult. & Rose) Goodrich -- not accepted
  Cymopterus purpureus var. rosei (M.E. Jones ex J.M. Coult. & Rose) Goodrich -- not accepted
  Cymopterus rosei (M.E. Jones ex J.M. Coult. & Rose) M.E. Jones -- accepted -- Rose's springparsley
  Cymopterus terebinthinus var. californicus (J.M. Coult. & Rose) Jeps. -- not accepted
  Cymopterus watsonii (J.M. Coult. & Rose) M.E. Jones -- not accepted
  Cynomarathrum alpinum (S. Watson) J.M. Coult. & Rose -- not accepted
  Cynomarathrum brandegeei J.M. Coult. & Rose -- not accepted
  Cynomarathrum nuttallii (A. Gray) J.M. Coult. & Rose -- not accepted
  Cynometra hemitomophylla Rose -- accepted
  Dalea oaxacana (Rose) Bullock -- not accepted
  Danaea excurrens Rosenst. -- accepted
  Danthonia dusenii var. charruana (Swallen) Roseng. & B.R. Arrill. -- not accepted
  Danthonia quinquenervata Roseng. & B.R. Arrill. -- not accepted
  Danthonia secundiflora ssp. charruana (Swallen) Roseng., B.R. Arrill. & Izag. -- accepted
  Deamia Britton & Rose -- not accepted
  Deamia testudo (Karw. ex Zucc.) Britton & Rose -- not accepted
  Dendrocereus Britton & Rose -- accepted
  Dendrocereus nudiflorus (Engelm. ex Sauvalle) Britton & Rose -- accepted
  Dendrocereus undulosus (DC.) Britton & Rose -- accepted
  Denmoza Britton & Rose -- accepted
  Denmoza rhodacantha (Salm-Dyck) Britton & Rose -- accepted
  Desmanthus covillei (Britton & Rose) Wiggins ex B.L. Turner -- accepted -- Coville's bundleflower
  Desmodium metcalfei (Rose & J.H. Painter) Kearney & Peebles -- accepted -- Metcalfe's tick trefoil, Metcalfe's ticktrefoil
  Deyeuxia alba ssp. tricholemma (Roseng., B.R. Arrill. & Izag.) Rúgolo -- not accepted
  Dicksonia grandis Rosenst. -- accepted
  Digitaria arechavaletae Roseng., B.R. Arrill. & Izag. -- not accepted
  Dioon purpusii Rose -- accepted
  Discocactus bahiensis Britton & Rose -- accepted
  Discocactus hartmannii (K. Schum.) Britton & Rose -- accepted
  Discocactus heptacanthus (Barb. Rodr.) Britton & Rose -- accepted
  Discocactus heptacanthus ssp. heptacanthus (Barb. Rodr.) Britton & Rose -- not accepted
  Discocactus zehntneri Britton & Rose -- accepted
  Discocactus zehntneri ssp. zehntneri Britton & Rose -- accepted
  Disocactus eichlamii (Weing.) Britton & Rose -- accepted
  Disocactus nelsonii (Britton & Rose) Linding. -- accepted
  Disocactus nelsonii ssp. nelsonii (Britton & Rose) Linding. -- accepted
  Ditaxis brandegeei (Millsp.) Rose & Standl. -- accepted -- Sonoran silverbush
  Ditaxis brandegeei var. brandegeei (Millsp.) Rose & Standl. -- not accepted
  Ditaxis brandegei (Millsp.) Rose & Standl. -- not accepted
  Ditremexa hirsuta (L.) Britton & Rose ex Britton & P. Wilson -- not accepted
  Ditremexa marilandica (L.) Britton & Rose -- not accepted
  Ditremexa medsgeri (Shafer) Britton & Rose -- not accepted
  Ditremexa occidentalis (L.) Britton & Rose ex Britton & P. Wilson -- not accepted
  Dolichothele (K. Schum.) Britton & Rose -- not accepted
  Dolichothele longimamma (DC.) Britton & Rose -- not accepted
  Dolichothele nelsonii (Britton & Rose) Backeb. -- not accepted
  Dolichothele sphaerica (A. Dietr.) Britton & Rose -- not accepted
  Dolichothele uberiformis (Zucc. ex Pfeiff.) Britton & Rose -- not accepted
  Dudleya Britton & Rose -- accepted
  Dudleya abramsii Rose -- accepted -- Abrams' liveforever
  Dudleya abramsii ssp. abramsii Rose -- accepted -- Abrams' liveforever
  Dudleya abramsii ssp. parva (Rose & Davidson) Bartel -- not accepted -- Conejo dudleya
  Dudleya albiflora Rose -- accepted
  Dudleya angustiflora Rose -- not accepted
  Dudleya arizonica Rose -- accepted -- Arizona dudleya
  Dudleya attentuata ssp. orcuttii (Rose) Moran -- not accepted -- Orcutt's dudleya
  Dudleya attenuata ssp. orcuttii (Rose) Moran -- accepted -- Orcutt's liveforever
  Dudleya brauntonii Rose -- not accepted
  Dudleya caespitosa (Haw.) Britton & Rose -- not accepted -- sealettuce
  Dudleya candelabrum Rose -- accepted -- candleholder dudleya, candleholder liveforever
  Dudleya cespitosa (Haw.) Britton & Rose -- accepted -- sealettuce
  Dudleya collomiae Rose ex Morton -- not accepted -- Gila County liveforever
  Dudleya compacta Rose -- not accepted
  Dudleya congesta Rose -- not accepted
  Dudleya cotyledon (Jacq.) Britton & Rose -- not accepted
  Dudleya cymosa (Lem.) Britton & Rose -- accepted -- canyon liveforever
  Dudleya cymosa ssp. cymosa (Lem.) Britton & Rose -- accepted -- canyon liveforever
  Dudleya cymosa ssp. gigantea (Rose) Moran -- accepted
  Dudleya cymosa ssp. minor (Rose) Moran -- not accepted
  Dudleya delicata Rose -- not accepted
  Dudleya densiflora (Rose) Moran -- accepted -- San Gabriel Mountains dudleya, San Gabriel Mountains liveforever
  Dudleya eastwoodiae Rose -- not accepted
  Dudleya farinosa (Lindley) Britton & Rose -- accepted -- powdery liveforever
  Dudleya gigantea Rose -- not accepted
  Dudleya goldmanii Rose -- not accepted
  Dudleya grandiflora Rose -- not accepted
  Dudleya greenei Rose -- accepted -- Greene's liveforever
  Dudleya hassei (Rose) Moran -- not accepted -- Hasse's liveforever
  Dudleya humilis Rose -- not accepted
  Dudleya lanceolata (Nutt.) Britton & Rose -- accepted -- lanceleaf liveforever
  Dudleya laxa (Lindley) Britton & Rose -- not accepted
  Dudleya lurida Rose -- not accepted
  Dudleya multicaulis (Rose) Moran -- accepted -- many-stemmed liveforever, manystem liveforever
  Dudleya nevadensis (S. Watson) Britton & Rose -- not accepted
  Dudleya nevadensis ssp. minor (Rose) Abrams -- not accepted
  Dudleya palmeri (S. Watson) Britton & Rose -- accepted -- Palmer's liveforever
  Dudleya parva Rose & Davidson -- accepted -- Conejo dudleya
  Dudleya pulverulenta (Nutt.) Britton & Rose -- accepted -- chalk dudleya, chalk liveforever
  Dudleya pulverulenta ssp. arizonica (Rose) Moran -- not accepted -- Arizona dudleya, chalk dudleya, rock echeveria
  Dudleya pulverulenta ssp. pulverulenta (Nutt.) Britton & Rose -- not accepted -- chalk dudleya
  Dudleya pulverulenta var. arizonica (Rose) Welsh -- not accepted
  Dudleya rusbyi (Greene) Britton & Rose -- not accepted
  Dudleya saxosa (M.E. Jones) Britton & Rose -- accepted -- Panamint liveforever
  Dudleya saxosa ssp. aloides (Rose) Moran -- accepted -- Panamint liveforever
  Dudleya saxosa ssp. collomiae (Rose) Moran -- accepted
  Dudleya saxosa ssp. saxosa (M.E. Jones) Britton & Rose -- accepted -- Panamint dudleya, Panamint liveforever
  Dudleya septentrionalis Rose -- not accepted
  Dudleya setchellii (Jeps.) Britton & Rose -- not accepted -- Santa Clara Valley dudleya, Santa Clara Valley liveforever
  Dudleya traskiae (Rose) Moran -- accepted -- Santa Barbara Island liveforever
  Dudleya virens (Rose) Moran -- accepted -- bright green dudleya, green liveforever
  Dudleya virens ssp. hassei (Rose) Moran -- accepted -- bright green dudleya
  Dudleya virens ssp. insularis (Rose) Moran -- accepted -- bright green dudleya, island green dudleya
  Dudleya virens ssp. virens (Rose) Moran -- accepted -- bright green dudleya
  Ebenopsis Britton & Rose -- accepted -- Texas ebony
  Ebenopsis confinis (Standl.) Britton & Rose -- accepted
  Eccremocactus Britton & Rose -- not accepted
  Eccremocactus bradei Britton & Rose -- not accepted
  Echeandia reflexa (Cav.) Rose -- accepted -- reflexed craglily
  Echeveria arizonica (Rose) Kearney & Peebles -- not accepted
  Echeveria bartramii (Rose) Kearney & Peebles -- not accepted
  Echeveria collomiae (Rose ex Morton) Kearney & Peebles -- not accepted
  Echeveria pulverulenta ssp. arizonica (Rose) Clokey -- not accepted
  Echinocactus grandis Rose -- not accepted
  Echinocactus palmeri Rose -- not accepted
  Echinocereus arizonicus Rose ex Orcutt -- accepted
  Echinocereus baileyi Rose -- not accepted
  Echinocereus barthelowanus Britton & Rose -- accepted
  Echinocereus caespitosus var. perbellus (Britton & Rose) D. Weniger -- not accepted
  Echinocereus chlorophthalmus (Hook.) Britton & Rose -- not accepted
  Echinocereus coccineus var. arizonicus (Rose ex Orcutt) Ferguson -- not accepted -- Arizona hedgehog, Arizona hedgehog cactus
  Echinocereus fitchii Britton & Rose -- not accepted
  Echinocereus grandis Britton & Rose -- accepted
  Echinocereus luteus Britton & Rose -- not accepted
  Echinocereus mamillatus (Engelm. ex J.M. Coult.) Britton & Rose -- not accepted
  Echinocereus octacanthus (Muehlenpf.) Britton & Rose -- not accepted
  Echinocereus ortegae Rose -- accepted
  Echinocereus ortegae ssp. ortegae Rose -- accepted
  Echinocereus pacificus (Engelm. ex Orcutt) Britton & Rose -- accepted
  Echinocereus palmeri Britton & Rose -- accepted
  Echinocereus palmeri ssp. palmeri Britton & Rose -- accepted
  Echinocereus perbellus Britton & Rose -- not accepted
  Echinocereus reichenbachii ssp. baileyi (Rose) N.P. Taylor -- not accepted
  Echinocereus reichenbachii ssp. fitchii (Britton & Rose) N.P. Taylor -- not accepted
  Echinocereus reichenbachii ssp. perbellus (Britton & Rose) N.P. Taylor -- not accepted
  Echinocereus reichenbachii ssp. reichenbachii (Terscheck ex Walp.) Britton & Rose -- not accepted
  Echinocereus reichenbachii var. baileyi (Rose) N.P. Taylor -- accepted -- Bailey's hedgehog cactus
  Echinocereus reichenbachii var. fitchii (Britton & Rose) L.D. Benson -- not accepted -- Fitch's hedgehog cactus
  Echinocereus reichenbachii var. perbellus (Britton & Rose) L.D. Benson -- accepted -- lace hedgehog cactus
  Echinocereus roetteri var. lloydii (Britton & Rose) Backeb. -- not accepted
  Echinocereus sarissophorus Britton & Rose -- not accepted
  Echinocereus scopulorum Britton & Rose -- accepted
  Echinocereus triglochidiatus var. arizonicus (Rose ex Orcutt) L.D. Benson -- not accepted -- Arizona hedgehog cactus
  Echinocereus viridiflorus var. standleyi (Britton & Rose) Orcutt ex D. Weniger -- not accepted
  Echinocereus X lloydii Britton & Rose -- not accepted -- Lloyd's hedgehog cactus
  Echinofossulocactus albatus (A. Dietr.) Britton & Rose -- not accepted
  Echinofossulocactus arrigens (Link) Britton & Rose -- not accepted
  Echinofossulocactus confusus Britton & Rose -- not accepted
  Echinofossulocactus dichroacanthus (Mart.) Britton & Rose -- not accepted
  Echinofossulocactus heteracanthus (Muehlenpf.) Britton & Rose -- not accepted
  Echinofossulocactus lamellosus (A. Dietr.) Britton & Rose -- not accepted
  Echinofossulocactus lancifer (A. Dietr.) Britton & Rose -- not accepted
  Echinofossulocactus lloydii Britton & Rose -- not accepted
  Echinofossulocactus pentacanthus (Lem.) Britton & Rose -- not accepted
  Echinofossulocactus tricuspidatus (Scheidw.) Britton & Rose -- not accepted
  Echinofossulocactus violaciflorus (Quehl) Britton & Rose -- not accepted
  Echinofossulocactus zacatecasensis Britton & Rose -- not accepted
  Echinomastus Britton & Rose -- not accepted
  Echinomastus durangensis (Runge) Britton & Rose -- not accepted
  Echinomastus erectocentrus (J.M. Coult.) Britton & Rose -- not accepted
  Echinomastus erectocentrus var. erectocentrus (J.M. Coult.) Britton & Rose -- not accepted
  Echinomastus intertextus (Engelm.) Britton & Rose -- not accepted
  Echinomastus intertextus var. intertextus (Engelm.) Britton & Rose -- not accepted
  Echinomastus unguispinus (Engelm.) Britton & Rose -- not accepted
  Echinopepon coulteri (A. Gray) Rose -- accepted -- Coulter's balsam apple
  Echinopsis aurea Britton & Rose -- accepted
  Echinopsis aurea ssp. aurea Britton & Rose -- accepted
  Echinopsis aurea ssp. shaferi (Britton & Rose) M. Lowry -- accepted
  Echinopsis bruchii (Britton & Rose) Friedrich & Glaetzle -- not accepted
  Echinopsis cuzcoensis (Britton & Rose) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis ferox (Britton & Rose) Backeb. -- accepted
  Echinopsis formosa ssp. bruchii (Britton & Rose) M. Lowry -- accepted
  Echinopsis longispina (Britton & Rose) Werderm. -- not accepted
  Echinopsis pachanoi (Britton & Rose) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis pampana (Britton & Rose) D.R. Hunt -- accepted
  Echinopsis peruviana (Britton & Rose) H. Friedrich & G.D. Rowley -- accepted
  Echinopsis peruviana ssp. peruviana (Britton & Rose) H. Friedrich & G.D. Rowley -- not accepted
  Echinopsis pugionacantha Rose & Boed. -- accepted
  Echinopsis pugionacantha ssp. pugionacantha Rose & Boed. -- accepted
  Echinopsis shaferi Britton & Rose -- not accepted
  Echinopsis spegazziniana Britton & Rose -- not accepted
  Elaphrium microphylla (A. Gray) Rose -- not accepted
  Elaphrium odoratum (Brandegee) Rose -- not accepted
  Elaphrium simaruba (L.) Rose -- not accepted
  Emelista tora auct. non (L.) Britton & Rose ex Britton & P. Wilson -- not accepted
  Epallageiton jonesii (J.M. Coult. & Rose) Koso-Pol. -- not accepted
  Epallageiton panamintense (J.M. Coult. & Rose) Koso-Pol. -- not accepted
  Epallageiton watsonii (J.M. Coult. & Rose) Koso-Pol. -- not accepted
  Epiphyllanthus candidus (Loefgr.) Britton & Rose -- not accepted
  Epiphyllanthus microsphaericus (K. Schum.) Britton & Rose -- not accepted
  Epiphyllanthus obovatus (Engelm. ex K. Schum.) Britton & Rose -- not accepted
  Epiphyllum cartagense (F.A.C. Weber) Britton & Rose -- accepted
  Epiphyllum caudatum Britton & Rose -- not accepted
  Epiphyllum costaricense (F.A.C. Weber) Britton & Rose -- not accepted
  Epiphyllum darrahii (K. Schum.) Britton & Rose -- not accepted
  Epiphyllum grandilobum (F.A.C. Weber) Britton & Rose -- accepted
  Epiphyllum guatemalense Britton & Rose -- not accepted
  Epiphyllum hookeri ssp. guatemalense (Britton & Rose) Ralf Bauer -- accepted
  Epiphyllum lepidocarpum (F.A.C. Weber) Britton & Rose -- accepted
  Epiphyllum nelsonii Britton & Rose -- not accepted
  Epiphyllum pittieri (F.A.C. Weber) Britton & Rose -- not accepted
  Epiphyllum pumilum Britton & Rose -- accepted
  Epiphyllum stenopetalum (C.F. Först.) Britton & Rose -- not accepted
  Epiphyllum strictum (Lem.) Britton & Rose -- not accepted
  Epiphyllum thomasianum (K. Schum.) Britton & Rose -- accepted
  Epiphyllum thomasianum ssp. thomasianum (K. Schum.) Britton & Rose -- accepted
  Epithelantha A. Weber ex Britton & Rose -- accepted -- pingpong ball cactus
  Epithelantha micromeris (Engelm.) A. Weber ex Britton & Rose -- accepted -- Biznaga-blanca chilona, pingpong ball cactus
  Epithelantha micromeris ssp. micromeris (Engelm.) A. Weber ex Britton & Rose -- not accepted
  Epithelantha micromeris var. micromeris (Engelm.) A. Weber ex Britton & Rose -- not accepted -- pingpong ball cactus
  Erdisia Britton & Rose -- not accepted
  Erdisia meyenii Britton & Rose -- not accepted
  Erdisia philippii (Regel & Schmidt) Britton & Rose -- not accepted
  Erdisia spiniflora (Phil.) Britton & Rose -- not accepted
  Erdisia squarrosa (Vaupel) Britton & Rose -- not accepted
  Erigeron parryi Canby & Rose -- accepted -- Parry's fleabane
  Eriosyce ceratistes (Otto) Britton & Rose -- not accepted
  Eryngium aquaticum var. floridanum (J.M. Coult. & Rose) Mathias & Constance -- not accepted
  Eryngium aristulatum ssp. parishii (J.M. Coult. & Rose) R.M. Beauch. -- not accepted
  Eryngium aristulatum var. parishii (J.M. Coult. & Rose) Mathias & Constance -- accepted -- Parish's eryngo, San Diego button-celery
  Eryngium armatum (S. Watson) J.M. Coult. & Rose -- accepted -- coastal eryngo
  Eryngium floridanum J.M. Coult. & Rose -- not accepted
  Eryngium lemmonii J.M. Coult. & Rose -- accepted -- Chiricahua Mountain eryngo
  Eryngium parishii J.M. Coult. & Rose -- not accepted
  Eryngium synchaetum (A. Gray ex J.M. Coult. & Rose) J.M. Coult. & Rose -- not accepted
  Eryngium vaseyi J.M. Coult. & Rose -- accepted -- coyotethistle
  Eryngium yuccifolium var. synchaetum A. Gray ex J.M. Coult. & Rose -- accepted -- button eryngo
  Erythrocladia Rosenvinge -- accepted
  Erythrocladia irregularis Rosenvinge -- accepted
  Erythrocladia subintegra Rosenv. -- accepted
  Erythropeltis subintegra (Rosenvinge) Korn. and Sahl. -- accepted
  Eschscholzia palmeri Rose -- accepted
  Escobaria Britton & Rose -- accepted -- foxtail cactus, pincushion cactus
  Escobaria bella Britton & Rose -- not accepted
  Escobaria chaffeyi Britton & Rose -- not accepted -- Biznaga-Escobar de Cedros
  Escobaria chihuahuensis Britton & Rose -- accepted
  Escobaria chihuahuensis ssp. chihuahuensis Britton & Rose -- accepted
  Escobaria cubensis (Britton & Rose) D.R. Hunt -- accepted
  Escobaria dasyacantha (Engelm.) Britton & Rose -- accepted -- Big Bend foxtail cactus, Biznaga-Escobar de espinas gruesas
  Escobaria dasyacantha ssp. chaffeyi (Britton & Rose) N.P. Taylor -- accepted
  Escobaria dasyacantha ssp. dasyacantha (Engelm.) Britton & Rose -- accepted
  Escobaria dasyacantha var. chaffeyi (Britton & Rose) N.P. Taylor -- not accepted -- Chaffey's foxtail cactus
  Escobaria dasyacantha var. dasyacantha (Engelm.) Britton & Rose -- not accepted -- Big Bend foxtail cactus
  Escobaria leei Rose ex Boed. -- not accepted
  Escobaria lloydii Britton & Rose -- accepted
  Escobaria runyonii Britton & Rose -- not accepted
  Escobaria sneedii Britton & Rose -- accepted -- carpet foxtail cactus
  Escobaria sneedii ssp. leei (Rose ex Boed.) D.R. Hunt -- not accepted
  Escobaria sneedii ssp. sneedii Britton & Rose -- accepted
  Escobaria sneedii var. leei (Rose ex Boed.) D.R. Hunt -- not accepted -- carpet foxtail cactus
  Escobaria sneedii var. sneedii Britton & Rose -- not accepted -- carpet foxtail cactus, Sneed's foxtail cactus
  Escobaria tuberculosa (Engelm.) Britton & Rose -- accepted -- Biznaga-Escobar rómbica, white column foxtail cactus
  Escontria Rose -- accepted
  Escontria chiotilla (F.A.C. Weber) Rose -- accepted
  Espostoa Britton & Rose -- accepted
  Espostoa lanata (Kunth) Britton & Rose -- accepted
  Espostoa lanata ssp. lanata (Kunth) Britton & Rose -- accepted
  Eucnide grandiflora (Groenl.) Rose -- accepted
  Eulychnia iquiquensis (K. Schum.) Britton & Rose -- accepted
  Eulychnia iquiquensis ssp. iquiquensis (K. Schum.) Britton & Rose -- accepted
  Eumecanthus colimae (Rose) Millsp. -- not accepted
  Euphorbia blepharostipula Millsp. ex Rose -- not accepted
  Euphorbia carmenensis Rose -- not accepted
  Euphorbia colimae Rose -- not accepted
  Euphorbia elastica Altam. & Rose -- not accepted
  Euphorbia polycarpa var. carmenensis (Rose) L.C. Wheeler -- accepted
  Euphorbia sonorae Rose -- accepted
  Eustachys brevipila (Roseng. & Izag.) Caro & E.A. Sánchez -- accepted
  Facheiroa Britton & Rose -- accepted
  Facheiroa pubiflora Britton & Rose -- not accepted
  Ferocactus Britton & Rose -- accepted -- barrel cactus
  Ferocactus acanthodes (Lem.) Britton & Rose -- not accepted
  Ferocactus acanthodes var. acanthodes (Lem.) Britton & Rose -- not accepted -- viznaga
  Ferocactus alamosanus (Britton & Rose) Britton & Rose -- accepted
  Ferocactus alamosanus ssp. alamosanus (Britton & Rose) Britton & Rose -- accepted
  Ferocactus chrysacanthus (Orcutt) Britton & Rose -- accepted
  Ferocactus chrysacanthus ssp. chrysacanthus (Orcutt) Britton & Rose -- accepted
  Ferocactus covillei Britton & Rose -- not accepted
  Ferocactus crassihamatus (F.A.C. Weber) Britton & Rose -- not accepted
  Ferocactus diguetii (F.A.C. Weber) Britton & Rose -- accepted
  Ferocactus echidne (DC.) Britton & Rose -- accepted
  Ferocactus emoryi ssp. covillei (Britton & Rose) D.R. Hunt & Dimmitt -- accepted
  Ferocactus flavovirens (Scheidw.) Britton & Rose -- accepted
  Ferocactus fordii (Orcutt) Britton & Rose -- accepted
  Ferocactus fordii ssp. fordii (Orcutt) Britton & Rose -- accepted
  Ferocactus glaucescens (DC.) Britton & Rose -- accepted
  Ferocactus haematacanthus (Muehlenpf.) Britton & Rose -- accepted
  Ferocactus hamatacanthus (Muehlenpf.) Britton & Rose -- accepted -- Biznaga-barril costillona, Turk's head
  Ferocactus hamatacanthus ssp. hamatacanthus (Muehlenpf.) Britton & Rose -- accepted
  Ferocactus hamatacanthus var. hamatacanthus (Muehlenpf.) Britton & Rose -- not accepted -- Turk's head
  Ferocactus johnsonii (Parry ex Engelm.) Britton & Rose -- not accepted
  Ferocactus johnstonianus Britton & Rose -- accepted
  Ferocactus latispinus (Haw.) Britton & Rose -- accepted
  Ferocactus latispinus ssp. latispinus (Haw.) Britton & Rose -- accepted
  Ferocactus lecontei (Engelm.) Britton & Rose -- not accepted -- Biznaga-barril de Gila
  Ferocactus macrodiscus (Mart.) Britton & Rose -- accepted
  Ferocactus macrodiscus ssp. macrodiscus (Mart.) Britton & Rose -- accepted
  Ferocactus peninsulae (F.A.C. Weber) Britton & Rose -- accepted
  Ferocactus peninsulae ssp. santa-maria (Britton & Rose) Pilbeam & Bowdery -- not accepted
  Ferocactus robustus (Link & Otto) Britton & Rose -- accepted
  Ferocactus santa-maria Britton & Rose -- accepted
  Ferocactus townsendianus Britton & Rose -- accepted
  Ferocactus townsendianus var. santa-maria (Britton & Rose) G.E. Linds. -- not accepted
  Ferocactus townsendianus var. santamaria (Britton & Rose) G.E. Linds. -- not accepted
  Ferocactus uncinatus (Galeotti ex Pfeiff.) Britton & Rose -- not accepted
  Ferocactus viridescens (Torr. & A. Gray) Britton & Rose -- accepted -- Biznaga-barril verdosa, coast barrel cactus, San Diego barrel cactus
  Ferocactus wislizeni (Engelm.) Britton & Rose -- accepted -- Biznaga-barril de Nuevo México, candy barrel cactus, fishhook barrel cactus
  Ferocactus wislizenii (Engelm.) Britton & Rose -- not accepted
  Festuca ovina f. vivipara (L.) Rosenv. -- not accepted
  Festuca X villosavivipara (Rosenv.) E.B. Alexeev -- accepted
  Frailea Britton & Rose -- accepted
  Frailea caespitosa (Speg.) Britton & Rose -- not accepted
  Frailea cataphracta (Dams) Britton & Rose -- accepted
  Frailea cataphracta ssp. cataphracta (Dams) Britton & Rose -- not accepted
  Frailea gracillima (Lem.) Britton & Rose -- accepted
  Frailea gracillima ssp. gracillima (Lem.) Britton & Rose -- accepted
  Frailea grahliana (F. Haage) Britton & Rose -- not accepted
  Frailea grahliana ssp. grahliana (F. Haage) Britton & Rose -- not accepted
  Frailea knippeliana (Quehl) Britton & Rose -- not accepted
  Frailea pumila (Lem.) Britton & Rose -- accepted
  Frailea pumila ssp. pumila (Lem.) Britton & Rose -- not accepted
  Frailea pygmaea (Speg.) Britton & Rose -- accepted
  Frailea pygmaea ssp. pygmaea (Speg.) Britton & Rose -- accepted
  Frailea schilinzkyana (F. Haage ex K. Schum.) Britton & Rose -- accepted
  Frailea schilinzkyana ssp. schilinzkyana (F. Haage ex K. Schum.) Britton & Rose -- accepted
  Galactia acapulcensis Rose -- accepted
  Gaumerocassia ekmaniana (Urb.) Britton ex Britton & Rose -- not accepted
  Gaya violacea Rose -- not accepted
  Gayella polyrhiza Rosenvinge -- not accepted
  Gormania retusa Rose -- not accepted
  Graptopetalum Rose -- accepted -- leather petal, leatherpetal
  Graptopetalum bartramii Rose -- accepted -- Patagonia leather petal, Patagonia Mountain leatherpetal
  Graptopetalum rusbyi (Greene) Rose -- accepted -- San Francisco leather petal, San Francisco River leatherpetal
  Grusonia Rchb. f. ex Britton & Rose -- accepted
  Grusonia bradtiana (J.M. Coult.) Britton & Rose -- accepted
  Grusonia kunzei (Rose) Pinkava -- accepted
  Gutierrezia triflora (Rose) M.A. Lane -- not accepted
  Gymnocalycium anisitsii (K. Schum.) Britton & Rose -- accepted
  Gymnocalycium anisitsii ssp. anisitsii (K. Schum.) Britton & Rose -- accepted
  Gymnocalycium brachyanthum (Gürke) Britton & Rose -- not accepted
  Gymnocalycium damsii (K. Schum.) Britton & Rose -- not accepted
  Gymnocalycium guerkeanum (Heese) Britton & Rose -- not accepted
  Gymnocalycium hyptiacanthum (Lem.) Britton & Rose -- not accepted
  Gymnocalycium joossensianum (Boed.) Britton & Rose -- not accepted
  Gymnocalycium kurtzianum (Gürke) Britton & Rose -- not accepted
  Gymnocalycium leeanum (Hook.) Britton & Rose -- not accepted
  Gymnocalycium megalothelon (Sencke) Britton & Rose -- not accepted
  Gymnocalycium melanocarpum (Arechav.) Britton & Rose -- not accepted
  Gymnocalycium mihanovichii (Fric & Gürke) Britton & Rose -- accepted
  Gymnocalycium monvillei (Lem.) Pfeiff. ex Britton & Rose -- accepted
  Gymnocalycium monvillei ssp. monvillei (Lem.) Pfeiff. ex Britton & Rose -- accepted
  Gymnocalycium mostii (Gürke) Britton & Rose -- accepted
  Gymnocalycium multiflorum (Hook.) Britton & Rose -- not accepted
  Gymnocalycium netrelianum (Monv.) Britton & Rose -- not accepted
  Gymnocalycium platense (Speg.) Britton & Rose -- not accepted
  Gymnocalycium saglione (F. Cels) Britton & Rose -- not accepted
  Gymnocalycium saglionis (F. Cels) Britton & Rose -- accepted
  Gymnocalycium saglionis ssp. saglionis (F. Cels) Britton & Rose -- not accepted
  Gymnocalycium schickendantzii (F.A.C. Weber) Britton & Rose -- accepted
  Gymnocalycium schickendantzii ssp. schickendantzii (F.A.C. Weber) Britton & Rose -- accepted
  Gymnocalycium spegazzinii Britton & Rose -- accepted
  Gymnocalycium spegazzinii ssp. spegazzinii Britton & Rose -- accepted
  Gymnocalycium stuckertii (Speg.) Britton & Rose -- not accepted
  Gymnocalycium uruguayense (Arechav.) Britton & Rose -- accepted
  Gymnopogon grandiflorus Roseng., B.R. Arrill. & Izag. -- accepted
  Gymnopogon legrandii Roseng., B.R. Arrill. & Izag. -- accepted
  Gymnosphaera biformis (Rosenst.) Copel. -- not accepted
  Hallasia Rosenvinge, 1924 -- accepted
  Hallasia reticulata (Hallas) Rosenvinge -- accepted
  Hamatocactus Britton & Rose -- not accepted
  Handroanthus chrysanthus (Jacq.) S.O. Grose -- accepted -- roble amarillo
  Handroanthus serratifolius (Vahl) S.O. Grose -- accepted -- yellow poui
  Harbouria J.M. Coult. & Rose -- accepted
  Harbouria trachypleura (A. Gray) J.M. Coult. & Rose -- accepted -- whiskbroom parsley
  Harperella fluviatilis Rose -- not accepted
  Harperella nodosa Rose -- not accepted
  Harperella vivipara Rose -- not accepted
  Harrisia aboriginum Small ex Britton & Rose -- accepted -- aboriginal pricklyapple, prickly applecactus
  Harrisia adscendens (Gürke) Britton & Rose -- accepted
  Harrisia bonplandii (J. Parm. & Pfeiff.) Britton & Rose -- not accepted
  Harrisia earlei Britton & Rose -- accepted
  Harrisia fragrans Small ex Britton & Rose -- accepted -- Caribbean applecactus
  Harrisia pomanensis (F.A.C. Weber ex K. Schum.) Britton & Rose -- accepted -- applecactus
  Harrisia pomanensis ssp. pomanensis (F.A.C. Weber ex K. Schum.) Britton & Rose -- not accepted
  Harrisia simpsonii Small ex Britton & Rose -- accepted -- Simpson's applecactus
  Harrisia tortuosa (J. Forbes ex Otto & A. Dietr.) Britton & Rose -- accepted
  Hasseanthus blochmaniae (Eastw.) Rose -- not accepted
  Hasseanthus elongatus Rose -- not accepted
  Hasseanthus variegatus (S. Watson) Rose -- not accepted
  Hatiora Britton & Rose -- accepted
  Hatiora bambusoides (F.A.C. Weber) Britton & Rose -- not accepted
  Hatiora cylindrica Britton & Rose -- accepted
  Hatiora salicornioides (Haw.) Britton & Rose -- accepted
  Havardia mexicana (Rose) Britton & Rose -- accepted
  Havardia pallens (Benth.) Britton & Rose -- accepted -- haujillo
  Havardia sonorae (S. Watson) Britton & Rose -- accepted
  Helianthocereus grandiflorus (Britton & Rose) Backeb. -- not accepted
  Heliocereus (A. Berger) Britton & Rose -- not accepted
  Heliocereus cinnabarinus (Weing.) Britton & Rose -- not accepted
  Heliocereus elegantissimus Britton & Rose -- not accepted
  Heliocereus schrankii (Zucc. ex Seitz) Britton & Rose -- not accepted
  Heliocereus speciosus (Cav.) Britton & Rose -- not accepted
  Heliotropium convolvulaceum var. racemosum (Rose & Standl.) I.M. Johnst. -- not accepted
  Heliotropium racemosum Rose & Standl. -- accepted -- coastal plain heliotrope, coastalplain heliotrope
  Hesperogenia stricklandii J.M. Coult. & Rose -- not accepted
  Heuchera alpestris Rosend., Butters & Lakela -- not accepted -- San Bernardino Mountain alumroot
  Heuchera americana var. brevipetala Rosend., Butters & Lakela -- not accepted
  Heuchera americana var. calycosa (Small) Rosend., Butters & Lakela -- not accepted
  Heuchera americana var. caroliniana Rosend., Butters & Lakela -- not accepted
  Heuchera americana var. hirsuticaulis (Wheelock) Rosend., Butters & Lakela -- accepted -- American alumroot
  Heuchera americana var. interior Rosend., Butters & Lakela -- not accepted
  Heuchera caroliniana (Rosend., Butters & Lakela) E.F. Wells -- accepted -- Carolina alumroot
  Heuchera cusickii Rosend., Butters & Lakela -- not accepted
  Heuchera cylindrica var. orbicularis (Rosend., Butters & Lakela) Calder & Savile -- not accepted -- poker alumroot
  Heuchera cylindrica var. septentrionalis Rosend., Butters & Lakela -- not accepted -- roundleaf alumroot
  Heuchera eastwoodiae Rosend., Butters & Lakela -- accepted -- Senator Mine alumroot
  Heuchera flabellifolia var. subsecta Rosend., Butters & Lakela -- not accepted -- Bridger Mountain alumroot, Butters & Lakela
  Heuchera glomerulata Rosend., Butters & Lakela -- accepted -- Chiricahua Mountain alumroot
  Heuchera hirsutissima Rosend., Butters & Lakela -- accepted -- shaggyhair alumroot
  Heuchera leptomeria var. peninsularis Rosend., Butters & Lakela -- not accepted
  Heuchera longiflora var. aceroides (Rydb.) Rosend., Butters & Lakela -- not accepted
  Heuchera micrantha var. diversifolia (Rydb.) Rosend., Butters & Lakela -- accepted -- crevice alumroot
  Heuchera micrantha var. erubescens (A. Braun & C.D. Bouché) Rosend. -- accepted -- crevice alumroot
  Heuchera micrantha var. hartwegii (S. Watson ex Wheelock) Rosend. -- accepted -- Hartweg's alumroot
  Heuchera micrantha var. pacifica Rosend., Butters & Lakela -- not accepted -- Pacific alumroot
  Heuchera missouriensis Rosend. -- not accepted
  Heuchera nivalis Rosend., Butters & Lakela -- not accepted
  Heuchera ovalifolia var. orbicularis Rosend., Butters & Lakela -- not accepted
  Heuchera ovalifolia var. thompsonii Rosend., Butters & Lakela -- not accepted
  Heuchera parviflora var. rugelii (Shuttlew. ex Kunze) Rosend., Butters & Lakela -- not accepted
  Heuchera parvifolia var. arizonica Rosend., Butters & Lakela -- not accepted -- Arizona alumroot, little-leaf alumroot
  Heuchera parvifolia var. flavescens (Rydb.) Rosend., Butters & Lakela -- not accepted -- littleleaf alumroot
  Heuchera parvifolia var. major Rosend., Butters & Lakela -- not accepted -- littleleaf alumroot
  Heuchera parvifolia var. microcarpa Rosend., Butters & Lakela -- not accepted -- littleleaf alumroot
  Heuchera parvifolia var. nivalis (Rosend., Butters & Lakela) Á. Löve & D. Löve & B.M. Kapoor -- not accepted -- littleleaf alumroot
  Heuchera pilosissima var. hemisphaerica (Rydb.) Rosend. -- not accepted -- seaside alumroot
  Heuchera pubescens var. brachyandra Rosend., Butters & Lakela -- not accepted
  Heuchera richardsonii var. affinis Rosend., Butters & Lakela -- not accepted
  Heuchera richardsonii var. grayana Rosend., Butters & Lakela -- not accepted
  Heuchera richardsonii var. hispidior Rosend., Butters & Lakela -- not accepted
  Heuchera rubescens var. pachypoda (Greene) Rosend., Butters & Lakela -- not accepted
  Heuchera rubescens var. rydbergiana Rosend., Butters & Lakela -- not accepted -- pink alumroot
  Heuchera rubescens var. truncata Rosend., Butters & Lakela -- not accepted -- pink alumroot
  Heuchera sanguinea var. pulchra (Rydb.) Rosend. -- not accepted -- coralbells
  Heuchera villosa var. intermedia Rosend., Butters & Lakela -- not accepted
  Heuchera villosa var. macrorhiza (Small) Rosend., Butters & Lakela -- not accepted
  Hipposelinum levisticum (L.) Britton & Rose -- not accepted
  Hofmeisteria laphamioides Rose -- not accepted
  Homalocephala Britton & Rose -- not accepted
  Homalocephala texensis (Hopffer) Britton & Rose -- not accepted
  Hosackia alamosana Rose -- accepted -- Sonoran bird's-foot trefoil
  Hyalocereus (A. Berger) Britton & Rose -- not accepted
  Hyalocereus lemairei (Hook.) Britton & Rose -- not accepted
  Hyalocereus undatus (Haw.) Britton & Rose -- not accepted
  Hydrocotyle australis J.M. Coult. & Rose -- not accepted
  Hydrocotyle canbyi J.M. Coult. & Rose -- not accepted
  Hylocereus (A. Berger) Britton & Rose -- accepted -- nightblooming cactus
  Hylocereus antiguensis Britton & Rose -- not accepted
  Hylocereus calcaratus (F.A.C. Weber) Britton & Rose -- accepted
  Hylocereus costaricensis (F.A.C. Weber) Britton & Rose -- accepted -- Costa Rica nightblooming cactus
  Hylocereus cubensis Britton & Rose -- not accepted
  Hylocereus extensus (Salm-Dyck ex DC.) Britton & Rose ex Rose -- accepted
  Hylocereus guatemalensis (Eichlam) Britton & Rose -- accepted
  Hylocereus lemairei (Hook.) Britton & Rose -- not accepted
  Hylocereus minutiflorus Britton & Rose -- accepted
  Hylocereus monacanthus (Lem.) Britton & Rose -- accepted -- nightblooming cereus
  Hylocereus napoleonis (Graham) Britton & Rose -- not accepted
  Hylocereus ocamponis (Salm-Dyck) Britton & Rose -- accepted
  Hylocereus polyrhizus (F.A.C. Weber) Britton & Rose -- not accepted
  Hylocereus purpusii (Weing.) Britton & Rose -- not accepted
  Hylocereus stenopterus (F.A.C. Weber) Britton & Rose -- accepted
  Hylocereus triangularis (L.) Britton & Rose -- accepted
  Hylocereus undatus (Haw.) Britton & Rose -- accepted -- nightblooming cactus, Pitahaya orejona
  Hylocereus venezuelensis Britton & Rose -- not accepted
  Hymenopappus radiatus Rose -- accepted -- ray hymenopappus, ray woollywhite
  Hymenorebutia aurea (Britton & Rose) F. Ritter -- not accepted
  Hymenoxys texana (J.M. Coult. & Rose) Cockerell -- accepted -- prairiedawn, Texas bitterweed, Texas prairie dawn-flower
  Hypoxis curtissii Rose -- accepted -- Curtis' star-grass
  Indigofera micheliana Rose -- accepted
  Isandrina emarginata (L.) Britton & Rose -- not accepted
  Jarava subnitida (Roseng. & B.R. Arrill.) Peñailillo -- accepted
  Jasminocereus Britton & Rose -- accepted
  Jasminocereus galapagensis (F.A.C. Weber) Britton & Rose -- not accepted
  Krainzia longiflora (Britton & Rose) Backeb. -- not accepted
  Krameria glandulosa Rose & Painter -- not accepted
  Krameria grayi Rose & Painter -- not accepted -- white ratany
  Krameria parvifolia var. glandulosa (Rose & Painter) J.F. Macbr. -- not accepted
  Kumlienia cooleyae (Vasey & Rose) Greene -- not accepted -- Cooley's false buttercup
  Kylinia Rosenvinge, 1909 -- accepted
  Kylinia rosulata Rosenvinge -- accepted
  Leersia hexandra ssp. grandiflora (Döll) Roseng., B.R. Arrill. & Izag. -- not accepted
  Leibergia orogenioides J.M. Coult. & Rose -- not accepted
  Lemaireocereus Britton & Rose -- not accepted
  Lemaireocereus aragonii (F.A.C. Weber) Britton & Rose -- not accepted
  Lemaireocereus beneckei (Ehrenb.) Britton & Rose -- not accepted
  Lemaireocereus cartwrightianus Britton & Rose -- not accepted
  Lemaireocereus chende (Rol.-Goss.) Britton & Rose -- not accepted
  Lemaireocereus chichipe (Rol.-Goss.) Britton & Rose -- not accepted
  Lemaireocereus deficiens (Otto & A. Dietr.) Britton & Rose -- not accepted
  Lemaireocereus eichlamii Britton & Rose -- not accepted
  Lemaireocereus godingianus Britton & Rose -- not accepted
  Lemaireocereus griseus (Haw.) Britton & Rose -- not accepted
  Lemaireocereus hollianus (F.A.C. Weber) Britton & Rose -- not accepted
  Lemaireocereus hystrix (Haw.) Britton & Rose -- not accepted
  Lemaireocereus laetus (Kunth) Britton & Rose -- not accepted
  Lemaireocereus longispinus Britton & Rose -- not accepted
  Lemaireocereus mixtecensis (J.A. Purpus) Britton & Rose -- not accepted
  Lemaireocereus montanus Britton & Rose -- not accepted
  Lemaireocereus pruinosus (Otto ex Pfeiff.) Britton & Rose -- not accepted
  Lemaireocereus stellatus (Pfeiff.) Britton & Rose -- not accepted
  Lemaireocereus thurberi (Engelm.) Britton & Rose -- not accepted
  Lemaireocereus treleasei Rose -- not accepted
  Lemaireocereus weberi (J.M. Coult.) Britton & Rose -- not accepted
  Lenophyllum Rose -- accepted
  Lenophyllum texanum (Sm.) Rose -- accepted -- coastal stonecrop
  Leocereus Britton & Rose -- accepted
  Leocereus bahiensis Britton & Rose -- accepted
  Leocereus glaziovii (K. Schum.) Britton & Rose -- not accepted
  Leocereus melanurus (K. Schum.) Britton & Rose -- not accepted
  Lepidocoryphantha macromeris ssp. runyonii (Britton & Rose) Doweld -- not accepted
  Lepidocoryphantha runyonii (Britton & Rose) Backeb. -- not accepted
  Lepismium pittieri (Britton & Rose) Backeb. -- not accepted
  Leptocereus (A. Berger) Britton & Rose -- accepted
  Leptocereus arboreus Britton & Rose -- accepted
  Leptocereus assurgens (C. Wright ex Griseb.) Britton & Rose -- accepted
  Leptocereus leonii Britton & Rose -- accepted
  Leptocereus maxonii Britton & Rose -- not accepted
  Leptocereus prostratus Britton & Rose -- not accepted
  Leptocereus quadricostatus (Bello) Britton & Rose -- accepted -- pitahaya
  Leptocereus sylvestris Britton & Rose -- accepted
  Leptocereus weingartianus (E. Hartmann in Dams) Britton & Rose -- accepted
  Leptoglottis angustisiliqua Britton & Rose -- not accepted
  Leptoglottis chapmanii Small ex Britton & Rose -- not accepted
  Leptoglottis floridana (Chapm.) Small ex Britton & Rose -- not accepted
  Leptoglottis hystricina Small ex Britton & Rose -- not accepted
  Leptoglottis microphylla (Dryand.) Britton & Rose -- not accepted
  Leptoglottis nelsonii Britton & Rose -- not accepted
  Leptoglottis nuttallii DC. ex Britton & Rose -- not accepted
  Leptoglottis occidentalis (Wooton & Standl.) Britton & Rose -- not accepted
  Leptotaenia anomala J.M. Coult. & Rose -- not accepted
  Leptotaenia bradshawii Rose ex Mathias -- not accepted
  Leptotaenia humilis J.M. Coult. & Rose -- not accepted
  Leucaena leucocephala ssp. glabrata (Rose) S. Zárate -- accepted -- white leadtree
  Ligusticum californicum J.M. Coult. & Rose -- accepted -- California licorice-root
  Ligusticum canbyi (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- Canby's licorice-root, Canby's lovage
  Ligusticum grayi J.M. Coult. & Rose -- accepted -- Gray's licorice-root, Gray's licoriceroot
  Ligusticum leibergii J.M. Coult. & Rose -- not accepted
  Ligusticum porteri J.M. Coult. & Rose -- accepted -- Porter's licorice-root, Porter's licoriceroot, Porter's ligusticum, Porter's wild lovage
  Ligusticum porteri var. porteri J.M. Coult. & Rose -- accepted -- Porter's licorice-root, Porter's licoriceroot
  Ligusticum verticillatum (Hook.) J.M. Coult. & Rose ex Rose -- accepted -- northern licorice-root
  Lilaeopsis carolinensis J.M. Coult. & Rose -- accepted -- Carolina grasswort
  Lilaeopsis occidentalis J.M. Coult. & Rose -- accepted -- western grasswort
  Lilaeopsis schaffneriana (Schltdl.) J.M. Coult. & Rose -- accepted -- Schaffner's grasswort
  Lilaeopsis schaffneriana var. schaffneriana (Schltdl.) J.M. Coult. & Rose -- accepted
  Lobivia Britton & Rose -- not accepted
  Lobivia andalgalensis (F.A.C. Weber ex K. Schum.) Britton & Rose -- not accepted
  Lobivia aurea (Britton & Rose) Backeb. -- not accepted
  Lobivia boliviensis Britton & Rose -- not accepted
  Lobivia bruchii Britton & Rose -- not accepted
  Lobivia cachensis (Speg.) Britton & Rose -- not accepted
  Lobivia caespitosa (J.A. Purpus) Britton & Rose -- not accepted
  Lobivia chionanthus (Speg.) Britton & Rose -- not accepted
  Lobivia cinnabarina (Hook.) Britton & Rose -- not accepted
  Lobivia corbula (Herrera) Britton & Rose -- not accepted
  Lobivia cumingii (Hopffer) Britton & Rose -- not accepted
  Lobivia famatimensis (Speg.) Britton & Rose -- not accepted
  Lobivia ferox Britton & Rose -- not accepted
  Lobivia formosa ssp. bruchii (Britton & Rose) Rausch -- not accepted
  Lobivia formosa ssp. grandis (Britton & Rose) Rausch -- not accepted
  Lobivia formosa var. bruchii (Britton & Rose) Rausch -- not accepted
  Lobivia formosa var. grandis (Britton & Rose) Rausch -- not accepted
  Lobivia grandiflora Britton & Rose -- not accepted
  Lobivia grandis Britton & Rose -- not accepted
  Lobivia haematantha (Speg.) Britton & Rose -- not accepted
  Lobivia lateritia (Gürke) Britton & Rose -- not accepted
  Lobivia longispina Britton & Rose -- not accepted
  Lobivia pampana Britton & Rose -- not accepted
  Lobivia pentlandii (Hook.) Britton & Rose -- not accepted
  Lobivia pugionacantha (Rose & Boed.) Backeb. -- not accepted
  Lobivia saltensis (Speg.) Britton & Rose -- not accepted
  Lobivia shaferi Britton & Rose -- not accepted
  Lobivia thionantha (Speg.) Britton & Rose -- not accepted
  Lomatium ambiguum (Nutt.) J.M. Coult. & Rose -- accepted -- Wyeth biscuitroot
  Lomatium ambiquum (Nutt.) J.M. Coult. & Rose -- not accepted
  Lomatium angustatum (J.M. Coult. & Rose) H. St. John -- not accepted
  Lomatium anomalum M.E. Jones ex J.M. Coult. & Rose -- not accepted
  Lomatium austiniae (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- Austin desertparsley
  Lomatium bicolor (S. Watson) J.M. Coult. & Rose -- accepted -- Wasatch biscuitroot, Wasatch desert-parsley, Wasatch desertparsley
  Lomatium bicolor var. bicolor (S. Watson) J.M. Coult. & Rose -- accepted -- Wasatch desertparsley
  Lomatium bradshawii (Rose ex Mathias) Mathias & Constance -- accepted -- Bradshaw's desert-parsley, Bradshaw's desertparsley, Bradshaw's lomatium
  Lomatium brandegeei (J.M. Coult. & Rose) J.F. Macbr. -- accepted -- Brandegee's desertparsley
  Lomatium brevifolium J.M. Coult. & Rose -- not accepted
  Lomatium canbyi (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- Canby's biscuitroot
  Lomatium caruifolium (Hook. & Arn.) J.M. Coult. & Rose -- accepted -- alkali desertparsley
  Lomatium caruifolium var. caruifolium (Hook. & Arn.) J.M. Coult. & Rose -- accepted -- alkali desertparsley
  Lomatium circumdatum (S. Watson) J.M. Coult. & Rose -- not accepted
  Lomatium congdonii J.M. Coult. & Rose -- accepted -- Congdon's lomatium, Mariposa desertparsley
  Lomatium cous (S. Watson) J.M. Coult. & Rose -- accepted -- cous biscuitroot, Cous' biscuitroot, cous-root desert-parsley
  Lomatium cusickii (S. Watson) J.M. Coult. & Rose -- accepted -- Cusick's biscuitroot
  Lomatium dasycarpum (Torr. & A. Gray) J.M. Coult. & Rose -- accepted -- woollyfruit desertparsley
  Lomatium dasycarpum ssp. dasycarpum (Torr. & A. Gray) J.M. Coult. & Rose -- accepted -- woollyfruit desertparsley
  Lomatium daucifolium (Torr. & A. Gray) J.M. Coult. & Rose -- not accepted
  Lomatium dissectum var. eatonii (J.M. Coult. & Rose) Cronquist -- not accepted
  Lomatium donnellii (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- Donnell's biscuitroot
  Lomatium eastwoodiae (J.M. Coult. & Rose) J.F. Macbr. -- accepted -- Eastwood's desertparsley
  Lomatium farinosum (Geyer ex Hook.) J.M. Coult. & Rose -- accepted -- northern biscuitroot
  Lomatium farinosum var. farinosum (Geyer ex Hook.) J.M. Coult. & Rose -- accepted -- northern biscuitroot
  Lomatium foeniculaceum (Nutt.) J.M. Coult. & Rose -- accepted -- biscuitroot, carrot-leaf desert-parsley, desert biscuitroot
  Lomatium foeniculaceum ssp. foeniculaceum (Nutt.) J.M. Coult. & Rose -- accepted -- carrot-leaf desert-parsley, desert biscuitroot
  Lomatium foeniculaceum ssp. macdougalii (J.M. Coult. & Rose) W.L. Theob. -- accepted -- carrot-leaf desert-parsley, MacDougal's biscuitroot
  Lomatium foeniculaceum var. macdougalii (J.M. Coult. & Rose) Cronquist -- not accepted
  Lomatium geyeri (S. Watson) J.M. Coult. & Rose -- accepted -- Geyer's biscuitroot
  Lomatium gormanii (Howell) J.M. Coult. & Rose -- accepted -- Gorman's biscuitroot
  Lomatium grayi (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- Gray's biscuitroot
  Lomatium grayi var. grayi (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- Gray's biscuitroot
  Lomatium hallii (S. Watson) J.M. Coult. & Rose -- accepted -- Hall's biscuitroot
  Lomatium hendersonii (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- Henderson's biscuitroot
  Lomatium humile (J.M. Coult. & Rose) Hoover ex Mathias & Constance -- not accepted
  Lomatium juniperinum (M.E. Jones) J.M. Coult. & Rose -- accepted -- juniper biscuitroot
  Lomatium laevigatum (Nutt.) J.M. Coult. & Rose -- accepted -- Slickrock biscuitroot
  Lomatium leptocarpum (Torr. & A. Gray) J.M. Coult. & Rose -- not accepted
  Lomatium macdougalii J.M. Coult. & Rose -- not accepted
  Lomatium macrocarpum (Nutt. ex Torr. & A. Gray) J.M. Coult. & Rose -- accepted -- bigseed biscuitroot, bigseed lomatium, large-fruit desert-parsley, largefruit biscuitroot, long mamma
  Lomatium marginatum (Benth.) J.M. Coult. & Rose -- accepted -- butte desertparsley
  Lomatium marginatum var. marginatum (Benth.) J.M. Coult. & Rose -- accepted -- butte desertparsley
  Lomatium martindalei (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- cascade desertparsley
  Lomatium martindalei var. angustatum (J.M. Coult. & Rose) J.M. Coult. & Rose -- not accepted
  Lomatium minus (Rose ex Howell) Mathias & Constance -- accepted -- Day Valley desert-parsley, Day Valley desertparsley
  Lomatium mohavense (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- Mojave biscuitroot, Mojave desert-parsley, Mojave desertparsley
  Lomatium mohavense ssp. mohavense (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- Mojave desertparsley
  Lomatium montanum J.M. Coult. & Rose -- not accepted
  Lomatium nevadense (S. Watson) J.M. Coult. & Rose -- accepted -- Nevada biscuitroot, Nevada desert-parsley
  Lomatium nevadense var. nevadense (S. Watson) J.M. Coult. & Rose -- accepted -- Nevada biscuitroot
  Lomatium nevadense var. parishii (J.M. Coult. & Rose) Jeps. -- accepted -- Parish's biscuitroot
  Lomatium nudicaule (Pursh) J.M. Coult. & Rose -- accepted -- barestem biscuitroot
  Lomatium oreganum (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- Blue Mountain biscuitroot
  Lomatium orientale J.M. Coult. & Rose -- accepted -- eastern lomatium, Northern Idaho biscuitroot, oriental desert-parsley
  Lomatium orogenioides (J.M. Coult. & Rose) Mathias -- not accepted
  Lomatium parvifolium var. pallidum (J.M. Coult. & Rose) Jeps. -- not accepted
  Lomatium piperi J.M. Coult. & Rose -- accepted -- Indian biscuitroot
  Lomatium platycarpum (Torr.) J.M. Coult. & Rose -- not accepted
  Lomatium plummerae (J.M. Coult. & Rose) J.M. Coult. & Rose -- not accepted -- Plummer's desertparsley
  Lomatium plummerae var. austiniae (J.M. Coult. & Rose) Mathias -- not accepted
  Lomatium plummerae var. plummerae (J.M. Coult. & Rose) J.M. Coult. & Rose -- not accepted -- Plummer's desertparsley
  Lomatium plummerae var. sonnei (J.M. Coult. & Rose) Jeps. -- not accepted -- Sonn's desertparsley
  Lomatium salmoniflorum (J.M. Coult. & Rose) Mathias & Constance -- accepted -- salmonflower biscuitroot
  Lomatium sandbergii (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- Sandberg's biscuitroot
  Lomatium scabrum (J.M. Coult. & Rose) Mathias -- accepted -- rough biscuitroot, rough desert-parsley, rough desertparsley
  Lomatium scabrum var. scabrum (J.M. Coult. & Rose) Mathias -- accepted -- rough biscuitroot, rough desertparsley
  Lomatium suksdorfii (S. Watson) J.M. Coult. & Rose -- accepted -- Suksdorf's desert-parsley, Suksdorf's desertparsley
  Lomatium tomentosum (Benth.) J.M. Coult. & Rose -- not accepted
  Lomatium torreyi (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- Sierra biscuitroot
  Lomatium triternatum (Pursh) J.M. Coult. & Rose -- accepted -- nineleaf biscuitroot
  Lomatium triternatum var. alatum J.M. Coult. & Rose -- not accepted
  Lomatium triternatum var. anomalum (M.E. Jones ex J.M. Coult. & Rose) Mathias -- accepted -- broadnineleaf biscuitroot
  Lomatium triternatum var. brevifolium (J.M. Coult. & Rose) Mathias -- accepted -- nineleaf biscuitroot
  Lomatium triternatum var. macrocarpum (J.M. Coult. & Rose) Mathias -- accepted -- nineleaf biscuitroot
  Lomatium triternatum var. triternatum (Pursh) J.M. Coult. & Rose -- accepted -- nineleaf biscuitroot
  Lomatium utriculatum (Nutt. ex Torr. & A. Gray) J.M. Coult. & Rose -- accepted -- common lomatium
  Lomatium vaginatum J.M. Coult. & Rose -- accepted -- broadsheath desertparsley, sheathed biscuitroot
  Lomatium vaseyi (J.M. Coult. & Rose) J.M. Coult. & Rose -- not accepted
  Lomatium watsonii (J.M. Coult. & Rose) J.M. Coult. & Rose -- accepted -- Watson's desertparsley
  Lombardochloa Roseng. & B.R. Arrill. -- not accepted
  Lombardochloa rufa (J. Presl) Roseng. & B.R. Arrill. -- not accepted
  Lombardochloa rufa var. rufa (J. Presl) Roseng. & B.R. Arrill. -- not accepted
  Lombardochloa rufa var. sparsepilosa (Roseng., B.R. Arrill. & Izag.) Roseng. & B.R. Arrill. -- not accepted
  Lophocereus (Engelm.) Britton & Rose -- not accepted
  Lophocereus sargentianus (Orcutt) Britton & Rose -- not accepted
  Lophocereus schottii (Engelm.) Britton & Rose -- not accepted -- Senita
  Lotus alamosanus (Rose) Gentry -- not accepted -- Sonoran bird's-foot trefoil, Sonoran birdfoot trefoil
  Lysiloma microphylla var. thornberi (Britton & Rose) Isely -- not accepted
  Lysiloma microphyllum var. thornberi (Britton & Rose) Isely -- not accepted
  Lysiloma thornberi Britton & Rose -- not accepted
  Lysiloma watsonii Rose -- accepted -- littleleaf false tamarind
  Machaeranthera orcuttii (Vasey & Rose) Cronquist & D.D. Keck -- not accepted
  Machaerocereus Britton & Rose -- not accepted
  Machaerocereus eruca (Brandegee) Britton & Rose -- not accepted
  Machaerocereus gummosus (Engelm.) Britton & Rose -- not accepted
  Maihuenia patagonica (Phil) Britton & Rose -- accepted
  Malvastrum bicuspidatum (S. Watson) Rose -- accepted -- shrubby false mallow
  Mamillopsis (E. Morren) F.A.C. Weber ex Britton & Rose -- not accepted
  Mamillopsis diguetii (F.A.C. Weber) Britton & Rose -- not accepted
  Mamillopsis senilis (Lodd. ex Salm-Dyck) F.A.C. Weber ex Britton & Rose -- not accepted
  Mammillaria albicans (Britton & Rose) A. Berger -- accepted
  Mammillaria albicans ssp. albicans (Britton & Rose) A. Berger -- accepted
  Mammillaria albicans ssp. fraileana (Britton & Rose) D.R. Hunt -- accepted
  Mammillaria arida Rose -- not accepted
  Mammillaria armillata ssp. cerralboa (Britton & Rose) D.R. Hunt -- not accepted
  Mammillaria cerralboa (Britton & Rose) Orcutt -- accepted
  Mammillaria collinsii (Britton & Rose) Orcutt -- not accepted
  Mammillaria columbiana ssp. yucatanensis (Britton & Rose) D.R. Hunt -- accepted
  Mammillaria confusa (Britton & Rose) Orcutt -- not accepted
  Mammillaria evermanniana (Britton & Rose) Orcutt -- accepted
  Mammillaria fraileana (Britton & Rose) Backeb. -- not accepted
  Mammillaria grahamii ssp. sheldonii (Britton & Rose) D.R. Hunt -- accepted
  Mammillaria gummifera var. macdougalii (Rose) L.D. Benson -- not accepted
  Mammillaria heyderi ssp. macdougalii (Rose) D.R. Hunt -- accepted
  Mammillaria heyderi var. macdougalii (Rose) L.D. Benson -- not accepted -- Macdougal's nipple cactus, Macdougal's pincushion cactus
  Mammillaria jaliscana (Britton & Rose) Boed. -- accepted
  Mammillaria jaliscana ssp. jaliscana (Britton & Rose) Boed. -- accepted
  Mammillaria lanata (Britton & Rose) Orcutt -- not accepted
  Mammillaria leei (Rose ex Boed.) D. Weniger -- not accepted
  Mammillaria lloydii (Britton & Rose) Orcutt -- not accepted
  Mammillaria longicoma (Britton & Rose) A. Berger -- not accepted
  Mammillaria longiflora (Britton & Rose) A. Berger -- accepted
  Mammillaria longiflora ssp. longiflora (Britton & Rose) A. Berger -- accepted
  Mammillaria macdougalii Rose -- not accepted
  Mammillaria mercadensis (Britton & Rose) Patoni -- accepted
  Mammillaria microcarpa var. milleri (Britton & Rose) W.T. Marshall -- not accepted
  Mammillaria milleri (Britton & Rose) Boed. -- not accepted -- Biznaga de Miller
  Mammillaria milleri var. sheldonii (Britton & Rose) Neutel. -- not accepted
  Mammillaria multiformis (Britton & Rose) Backeb. -- not accepted
  Mammillaria nunezii (Britton & Rose) Orcutt -- accepted
  Mammillaria nunezii ssp. nunezii (Britton & Rose) Orcutt -- accepted
  Mammillaria occidentalis (Britton & Rose) Boed. -- not accepted
  Mammillaria painteri Rose ex Quehl -- accepted
  Mammillaria peninsularis (Britton & Rose) Orcutt -- accepted
  Mammillaria petrophila ssp. arida (Rose) D.R. Hunt -- accepted
  Mammillaria pseudorekoi (Rose) Boed. -- not accepted
  Mammillaria pygmaea (Britton & Rose) A. Berger -- not accepted
  Mammillaria rekoi (Britton & Rose) Vaupel -- accepted
  Mammillaria rekoi ssp. rekoi (Britton & Rose) Vaupel -- accepted
  Mammillaria runyonii (Britton & Rose) Cory -- not accepted
  Mammillaria scrippsiana (Britton & Rose) Orcutt -- accepted
  Mammillaria sheldonii (Britton & Rose) Boed. -- not accepted
  Mammillaria slevinii (Britton & Rose) Boed. -- not accepted
  Mammillaria sneedi (Britton & Rose) Cory -- not accepted
  Mammillaria sneedii (Britton & Rose) Cory -- not accepted
  Mammillaria solisii (Britton & Rose) Boed. -- not accepted
  Mammillaria standleyi (Britton & Rose) Orcutt -- accepted
  Mammillaria swinglei (Britton & Rose) Boed. -- not accepted
  Mammillaria tenampensis (Britton & Rose) A. Berger -- not accepted
  Mammillaria viridiflora (Britton & Rose) Cory -- accepted -- Biznaga de flor verde, greenflower nipple cactus
  Mammillaria xanthina (Britton & Rose) Boed. -- not accepted
  Mammillaria yucatanensis (Britton & Rose) Orcutt -- not accepted
  Manfreda longiflora (Rose) Verh-Will. -- accepted -- Amole de río, longflower tuberose, Runyon huaco
  Manfreda maculosa (Hook.) Rose -- accepted -- Amole de culebra, spice lily
  Manfreda variegata (Jacobi) Rose -- accepted -- Amole akayman, mottled tuberose
  Manfreda virginica (L.) Salisb. ex Rose -- accepted -- Amole de Virginia, false aloe
  Manfreda virginica var. tigrina (Engelm.) Rose -- not accepted
  Mariosousa willardiana (Rose) Seigler & Ebinger -- accepted
  Matucana Britton & Rose -- accepted
  Matucana haynei (Otto) Britton & Rose -- accepted
  Matucana haynei ssp. haynei (Otto) Britton & Rose -- accepted
  Mediocactus Britton & Rose -- not accepted
  Mediocactus megalanthus (K. Schum. ex Vaupel) Britton & Rose -- not accepted
  Meibomia metcalfei Rose & J.H. Painter -- not accepted
  Melica brevicoronata Roseng., B.R. Arrill. & Izag. -- accepted
  Melica monantha Roseng., B.R. Arrill. & Izag. -- not accepted
  Melocactus bahiensis (Britton & Rose) Luetzelb. -- accepted
  Melocactus bahiensis ssp. bahiensis (Britton & Rose) Luetzelb. -- accepted
  Melocactus broadwayi (Britton & Rose) A. Berger -- accepted -- Turk's cap
  Melocactus harlowii (Britton & Rose) Vaupel -- accepted
  Melocactus maxonii (Rose) Gürke -- not accepted
  Melocactus oaxacensis (Britton & Rose) Backeb. -- not accepted
  Melocactus ruestii ssp. maxonii (Rose) Elizondo -- not accepted
  Melocactus ruestii ssp. oaxacensis (Britton & Rose) Elizondo -- not accepted
  Melocactus zehntneri (Britton & Rose) Leutzelb. -- accepted
  Mila Britton & Rose -- accepted
  Mila caespitosa Britton & Rose -- accepted
  Mila caespitosa ssp. caespitosa Britton & Rose -- accepted
  Mimosa hystricina (Small ex Britton & Rose) B.L. Turner -- accepted -- porcupine mimosa
  Mimosa nuttallii (DC. ex Britton & Rose) B.L. Turner -- accepted -- catclaw sensitivebriar, Nuttall's sensitive-briar
  Mimosa quadrivalvis var. hystricina (Small ex Britton & Rose) Barneby -- not accepted
  Mimosa quadrivalvis var. hystricina (Small ex Britton & Rose) Barneby -- not accepted
  Mimosa quadrivalvis var. nelsonii (Britton & Rose) Barneby -- accepted -- Nelson's mimosa
  Mimosa quadrivalvis var. nuttallii (DC. ex Britton & Rose) L.S. Beard ex Barneby -- not accepted
  Mimosopsis biuncifera (Benth.) Britton & Rose -- not accepted
  Mirabella albicaulis (Britton & Rose) F. Ritter -- not accepted
  Mitella stauropetala var. stenopetala (Piper) Rosend. -- not accepted -- drywoods miterwort
  Mitella trifida var. violacea (Rydb.) Rosend. -- not accepted -- threeparted miterwort
  Momisia iguanaea (Jacq.) Rose & Standl. -- not accepted
  Monvillea Britton & Rose -- not accepted
  Monvillea albicaulis (Britton & Rose) R. Kiesling -- not accepted
  Monvillea amazonica (K. Schum. ex Vaupel) Britton & Rose -- not accepted
  Monvillea diffusa Britton & Rose -- not accepted
  Monvillea insularis (Hemsl.) Britton & Rose -- not accepted
  Monvillea maritima Britton & Rose -- not accepted
  Monvillea phatnosperma (K. Schum.) Britton & Rose -- not accepted
  Monvillea smithiana (Britton & Rose) Backeb. -- not accepted
  Monvillea spegazzinii (F.A.C. Weber) Britton & Rose -- not accepted
  Musineon tenuifolium (Nutt. ex Torr. & A. Gray) J.M. Coult. & Rose -- accepted -- slender wildparsley
  Myrtillocactus cochal (Orcutt) Britton & Rose -- accepted
  Myrtillocactus eichlamii Britton & Rose -- accepted
  Myrtillocactus schenckii (J.A. Purpus) Britton & Rose -- accepted
  Najas guadalupensis ssp. olivacea (Rosend. & Butters) R.R. Haynes & Hellq. -- accepted -- Guadalupe waternymph
  Najas guadalupensis var. olivacea (Rosend. & Butters) R.R. Haynes -- not accepted -- Guadalupe waternymph
  Najas olivacea Rosend. & Butters -- not accepted
  Nassella crassiflora (Roseng. & B.R. Arrill.) Barkworth -- accepted
  Nassella leptocoronata (Roseng. & B.R. Arrill.) Barkworth -- accepted
  Nassella longicoronata (Roseng. & B.R. Arrill.) Barkworth -- accepted
  Nassella pauciciliata (Roseng. & Izag.) Barkworth -- accepted
  Nassella quinqueciliata (Roseng. & Izag.) Barkworth & Torres -- accepted
  Nassella subnitida (Roseng. & B.R. Arrill.) Barkworth -- not accepted
  Neltuma velutina (Wooton) Britton & Rose -- not accepted
  Neoabbottia Britton & Rose -- not accepted
  Neoabbottia paniculata (Lam.) Britton & Rose -- not accepted
  Neobesseya Britton & Rose -- not accepted
  Neobesseya missouriensis (Sweet) Britton & Rose -- not accepted
  Neobesseya notesteinii (Britton) Britton & Rose -- not accepted
  Neobesseya similis (Engelm. & A. Gray) Britton & Rose -- not accepted
  Neobesseya wissmannii (Hildm. ex K. Schum.) Britton & Rose -- not accepted
  Neolloydia Britton & Rose -- accepted
  Neolloydia beguinii (F.A.C. Weber ex K. Schum.) Britton & Rose -- not accepted
  Neolloydia clavata (Scheidw.) Britton & Rose -- not accepted
  Neolloydia conoidea (DC.) Britton & Rose -- accepted -- Biznaga-cónica, Chihuahuan beehive
  Neomammillaria Britton & Rose -- not accepted
  Neomammillaria multiformis Britton & Rose -- not accepted
  Neomammillaria nivosa (Link ex Pfeiff.) Britton & Rose -- not accepted
  Neomammillaria rekoi Britton & Rose -- not accepted
  Neomammillaria similis (Engelm.) Britton & Rose ex Rydb. -- not accepted
  Neoporteria Britton & Rose -- not accepted
  Neoporteria chilensis (Hildm. ex K. Schum.) Britton & Rose -- not accepted
  Neoporteria fusca (Muehlenpf.) Britton & Rose -- not accepted
  Neoporteria jussieui (Monv. ex Salm-Dyck) Britton & Rose -- not accepted
  Neoporteria nidus (Söhrens) Britton & Rose -- not accepted
  Neoporteria nigricans (Linke) Britton & Rose -- not accepted
  Neoporteria subgibbosa (Haw.) Britton & Rose -- not accepted
  Neoraimondia Britton & Rose -- accepted
  Neoraimondia macrostibas Britton & Rose -- not accepted
  Neptunia palmeri Britton & Rose -- not accepted
  Neptunia pubescens var. microcarpa (Rose) Windler -- accepted -- tropical puff
  Niopa peregrina (L.) Britton & Rose -- not accepted
  Nopalea gaumeri Britton & Rose -- not accepted
  Nopalea guatemalensis Rose -- not accepted
  Nopalea lutea Rose -- not accepted
  Nopalxochia Britton & Rose -- not accepted
  Nopalxochia phyllanthoides (DC.) Britton & Rose -- not accepted
  Nyctocereus (A. Berger) Britton & Rose -- not accepted
  Nyctocereus guatemalensis Britton & Rose -- not accepted
  Nyctocereus hirschtianus (K. Schum.) Britton & Rose -- not accepted
  Nyctocereus neumannii (K. Schum.) Britton & Rose -- not accepted
  Nyctocereus oaxacensis Britton & Rose -- not accepted
  Nyctocereus serpentinus (Lag. & Rodr.) Britton & Rose -- not accepted
  Oenothera curtisii (Rose) Small -- not accepted
  Oenothera curtissii (Rose) Small -- accepted -- Curtiss' evening primrose, Curtiss' evening-primrose
  Opuntia abjecta Small ex Britton & Rose -- not accepted
  Opuntia alexanderi Britton & Rose -- not accepted
  Opuntia antillana Britton & Rose -- not accepted
  Opuntia atropes Rose -- not accepted
  Opuntia azurea Rose -- not accepted
  Opuntia bahiensis Britton & Rose -- not accepted
  Opuntia ballii Rose -- not accepted
  Opuntia bella Britton & Rose -- not accepted
  Opuntia boldinghii Britton & Rose -- accepted
  Opuntia boringuensis Britton & Rose -- not accepted
  Opuntia borinquensis Britton & Rose -- accepted -- olaga
  Opuntia brasiliensis ssp. bahiensis (Britton & Rose) P.J. Braun & Esteves -- not accepted
  Opuntia burrageana Britton & Rose -- not accepted
  Opuntia caribaea Britton & Rose -- not accepted
  Opuntia chaffeyi Britton & Rose -- accepted
  Opuntia chihuahuensis Rose -- not accepted -- Chihuahua pricklypear, Nopal de Chihuahua
  Opuntia covillei Britton & Rose -- not accepted
  Opuntia deamii Rose -- not accepted
  Opuntia depauperata Britton & Rose -- not accepted
  Opuntia depressa Rose -- accepted
  Opuntia discolor Britton & Rose -- not accepted
  Opuntia durangensis Britton & Rose -- not accepted
  Opuntia eichlamii Rose -- not accepted
  Opuntia feroacantha Britton & Rose -- not accepted
  Opuntia guatemalensis Britton & Rose -- not accepted
  Opuntia imbricata var. viridiflora (Britton & Rose) D. Weniger -- not accepted
  Opuntia juniperina Britton & Rose -- not accepted
  Opuntia kunzei Rose -- not accepted -- Cholla abrojo de Arizona, devil's cholla, dogturd cholla
  Opuntia lloydii Rose -- not accepted
  Opuntia lutea (Rose) D.R. Hunt -- not accepted
  Opuntia mackensenii Rose -- not accepted
  Opuntia megarhiza Rose -- not accepted
  Opuntia megarrhiza Rose -- accepted
  Opuntia occidentalis var. covillei (Britton & Rose) Munz -- not accepted
  Opuntia pallida Rose -- not accepted
  Opuntia palmadora Britton & Rose -- not accepted
  Opuntia pennellii Britton & Rose -- not accepted
  Opuntia pisciformis Small ex Britton & Rose -- not accepted
  Opuntia pittieri Britton & Rose -- accepted
  Opuntia plumbea Rose -- not accepted -- Nopal enano
  Opuntia pollardii Britton & Rose -- not accepted
  Opuntia polyacantha var. juniperina (Britton & Rose) L.D. Benson -- accepted -- Juniper pricklypear
  Opuntia pumila Rose -- not accepted
  Opuntia pyriformis Rose -- not accepted
  Opuntia salvadorensis Britton & Rose -- not accepted
  Opuntia santa-rita (Griffiths & Hare) Rose -- accepted -- Santa Rita pricklypear
  Opuntia shaferi Britton & Rose -- not accepted
  Opuntia soederstromiana Britton & Rose -- accepted
  Opuntia soehrensii Britton & Rose -- not accepted
  Opuntia stanlyi var. kunzei (Rose) L.D. Benson -- not accepted
  Opuntia taylorii Britton & Rose -- accepted
  Opuntia trichophora (Engelm. & J.M. Bigelow) Britton & Rose -- not accepted -- Nopal peludito
  Opuntia vaseyi (J.M. Coult.) Britton & Rose -- not accepted
  Opuntia vilis Rose -- not accepted
  Opuntia wetmorei Britton & Rose -- not accepted
  Opuntia whipplei var. viridiflora (Britton & Rose) L.D. Benson -- not accepted
  Opuntia wilcoxii Britton & Rose -- accepted
  Opuntia X aequatorialis Britton & Rose (pro sp.) -- accepted
  Opuntia X cubensis Britton & Rose (pro sp.) -- accepted -- bullsuckers
  Opuntia X vaseyi (J.M. Coult.) Britton & Rose (pro sp.) -- accepted
  Opuntia X viridiflora Britton & Rose (pro sp.) -- not accepted -- rattail cholla, Santa Fe cholla
  Opuntia X vivipara Rose (pro sp.) -- not accepted
  Oreoxis alpina (A. Gray) J.M. Coult. & Rose -- accepted -- alpine oreoxis, tundra alpine-parsley
  Oreoxis alpina ssp. alpina (A. Gray) J.M. Coult. & Rose -- accepted -- alpine oreoxis
  Oreoxis bakeri J.M. Coult. & Rose -- accepted -- Baker's alpineparsley
  Oreoxis macdougalii (J.M. Coult. & Rose) Rydb. -- not accepted
  Oroya Britton & Rose -- accepted
  Oroya peruviana (K. Schum.) Britton & Rose -- accepted
  Osmorhiza ambigua (A. Gray) J.M. Coult. & Rose -- not accepted
  Osmorhiza brevipes (J.M. Coult. & Rose) Suksd. -- not accepted
  Osmorhiza chilensis var. purpurea (J.M. Coult. & Rose) B. Boivin -- not accepted
  Osmorhiza leibergii (J.M. Coult. & Rose) Blankinship -- not accepted
  Osmorhiza obtusa (J.M. Coult. & Rose) Fernald -- not accepted
  Osmorhiza purpurea (J.M. Coult. & Rose) Suksd. -- accepted -- purple sweetroot
  Oxalis alpina (Rose) Rose ex R. Knuth -- accepted -- alpine woodsorrel
  Oxalis grayi (Rose) R. Knuth -- not accepted
  Oxypolis canbyi (J.M. Coult. & Rose) Fernald -- accepted -- Canby's cowbane, Canby's dropwort
  Oxypolis filiformis var. canbyi J.M. Coult. & Rose -- not accepted
  Oxypolis occidentalis J.M. Coult. & Rose -- accepted -- western cowbane
  Pachycereus (A. Berger) Britton & Rose -- accepted
  Pachycereus calvus (Engelm. ex J.M. Coult.) Britton & Rose -- not accepted
  Pachycereus chrysomallus (Lem.) Britton & Rose -- not accepted
  Pachycereus columna-trajani (Karw.) Britton & Rose -- not accepted
  Pachycereus gaumeri Britton & Rose -- accepted
  Pachycereus grandis Rose -- accepted
  Pachycereus lepidanthus (Eichlam) Britton & Rose -- accepted
  Pachycereus marginatus (DC.) Britton & Rose -- accepted
  Pachycereus pecten-aboriginum (Engelm. ex S. Watson) Britton & Rose -- accepted
  Pachycereus pringlei (S. Watson) Britton & Rose -- accepted
  Pachycereus ruficeps (F.A.C. Weber ex Rol.-Goss.) Britton & Rose -- not accepted
  Panicum chaseae Roseng., B.R. Arrill. & Izag. -- accepted
  Panicum glabripes ssp. subjunceum (Ekman) Roseng., B.R. Arrill. & Izag. -- not accepted
  Panicum prionitis ssp. gynerioides (Griseb.) Roseng., Arriaga & Izag. -- not accepted
  Pappophorum krapovickasii Roseng. -- accepted
  Pappophorum macrospermum Roseng., B.R. Arrill. & Izag. -- not accepted
  Paspalidium macrospermum Roseng. -- not accepted
  Paspalum dilatatum ssp. flavescens Roseng., B.R. Arrill. & Izag. -- accepted
  Paspalum ionanthum ssp. guaraniticum (Parodi) Roseng., B.R. Arrill. & Izag. -- not accepted
  Paspalum paniculatum ssp. umbrosum (Trin.) Roseng., B.R. Arrill. & Izag. -- not accepted
  Paspalum plicatulum ssp. guenoarum (Arechav.) Roseng., B.R. Arrill. & Izag. -- not accepted
  Paspalum plicatulum ssp. montevidense (Spreng.) Roseng., B.R. Arrill. & Izag. -- not accepted
  Passiflora arida (Mast. & Rose) Killip -- accepted
  Passiflora foetida var. arida Mast. & Rose -- not accepted
  Pediocactus Britton & Rose -- accepted -- hedgehog cactus
  Pediocactus simpsonii (Engelm.) Britton & Rose -- accepted -- Simpson's hedgehog cactus, snowball pediocactus
  Pediocactus simpsonii ssp. simpsonii (Engelm.) Britton & Rose -- not accepted
  Pediocactus simpsonii var. simpsonii (Engelm.) Britton & Rose -- not accepted -- Simpson hedgehog cactus, Simpson's hedgehog cactus
  Peiranisia bahamensis (Mill.) Britton & Rose -- not accepted
  Peiranisia polyphylla (Jacq.) Britton & Rose -- not accepted
  Peniocereus (A. Berger) Britton & Rose -- accepted
  Peniocereus greggii (Engelm.) Britton & Rose -- accepted -- nightblooming cereus
  Peniocereus greggii var. greggii (Engelm.) Britton & Rose -- accepted -- Gregg's nightblooming cereus
  Peniocereus guatemalensis (Britton & Rose) D.R. Hunt -- accepted
  Peniocereus johnstonii Britton & Rose -- accepted
  Peniocereus oaxacensis (Britton & Rose) D.R. Hunt -- accepted
  Peniocereus papillosus (Britton & Rose) U. Guzmán -- not accepted
  Pereskia autumnalis (Eichlam) Rose -- not accepted
  Pereskia colombiana Britton & Rose -- not accepted
  Pereskia conzattii Britton & Rose -- not accepted
  Pereskia cubensis Britton & Rose -- not accepted
  Pereskia humboldtii Britton & Rose -- not accepted
  Pereskia moorei Britton & Rose -- not accepted
  Pereskia zehntneri Britton & Rose -- not accepted
  Pereskiopsis Britton & Rose -- accepted
  Pereskiopsis aquosa (F.A.C. Weber) Britton & Rose -- accepted
  Pereskiopsis chapistle (F.A.C. Weber) Britton & Rose -- not accepted
  Pereskiopsis diguetii (F.A.C. Weber) Britton & Rose -- accepted
  Pereskiopsis kellermanii Rose -- accepted
  Pereskiopsis opuntiiflora (DC.) Britton & Rose -- not accepted
  Pereskiopsis pititache (Karw. ex Pfeiff.) Britton & Rose -- not accepted
  Pereskiopsis porteri (Brandegee ex F.A.C. Weber) Britton & Rose -- accepted
  Pereskiopsis rotundifolia (DC.) Britton & Rose -- accepted
  Pereskiopsis scandens Britton & Rose -- not accepted
  Pereskiopsis spathulata (Otto ex Pfeiff.) Britton & Rose -- not accepted
  Pereskiopsis velutina Rose -- not accepted
  Perideridia howellii (J.M. Coult. & Rose) Mathias -- accepted -- Howell's yampah
  Perideridia lemmonii (J.M. Coult. & Rose) T.I. Chuang & Constance -- accepted -- Lemmon's yampah
  Perideridia parishii (J.M. Coult. & Rose) A. Nelson & J.F. Macbr. -- accepted -- Parish's yampah, Sierra Queen Anne's lace
  Perideridia parishii ssp. parishii (J.M. Coult. & Rose) A. Nelson & J.F. Macbr. -- accepted -- Parish's yampah
  Perideridia pringlei (J.M. Coult. & Rose) A. Nelson & J.F. Macbr. -- accepted -- adobe yampah
  Peucedanum canbyi J.M. Coult. & Rose -- not accepted
  Peucedanum kingii var. alpinum (S. Watson) J.M. Coult. & Rose -- not accepted
  Peucedanum sandbergii J.M. Coult. & Rose -- not accepted
  Phellosperma Britton & Rose -- not accepted
  Phellosperma tetrancistra (Engelm.) Britton & Rose -- not accepted
  Physalis greenei Vasey & Rose -- not accepted
  Pilosocereus barbadensis (Britton & Rose) Byles & G.D. Rowley -- not accepted
  Pilosocereus brasiliensis (Britton & Rose) Backeb. -- accepted
  Pilosocereus brasiliensis ssp. brasiliensis (Britton & Rose) Backeb. -- accepted
  Pilosocereus brooksianus (Britton & Rose) Byles & G.D. Rowley -- not accepted
  Pilosocereus collinsii (Britton & Rose) Byles & G.D. Rowley -- accepted
  Pilosocereus colombianus (Rose) Byles & G.D. Rowley -- not accepted
  Pilosocereus gaumeri (Britton & Rose) Backeb. -- not accepted
  Pilosocereus gounellei ssp. zehntneri (Britton & Rose) Zappi -- accepted
  Pilosocereus keyensis (Britton & Rose) Byles & G.D. Rowley -- not accepted
  Pilosocereus maxonii (Rose) Byles & G.D. Rowley -- not accepted
  Pilosocereus palmeri (Rose) Byles & G.D. Rowley -- not accepted
  Pilosocereus purpusii (Britton & Rose) Byles & G.D. Rowley -- accepted
  Pilosocereus sartorianus (Rose) Byles & G.D. Rowley -- not accepted
  Pilosocereus tweedyanus (Britton & Rose) Byles & G.D. Rowley -- accepted
  Pilosocereus zehnteri (Britton & Rose) F. Ritter -- not accepted
  Piptochaetium cucullatum Roseng. & Izag. -- accepted
  Piscidia mollis Rose -- accepted
  Pithecellobium mexicanum Rose -- not accepted
  Platyopuntia discolor (Britton & Rose) F. Ritter -- not accepted
  Platyopuntia soehrensii (Britton & Rose) F. Ritter -- not accepted
  Pleiotaenia nuttallii (DC.) J.M. Coult. & Rose -- not accepted
  Pleiotaenia nuttallii var. texana (J.M. Coult. & Rose) J.M. Coult. & Rose -- not accepted
  Pleurocornis laphamioides (Rose) R. M. King & H. Rob. -- not accepted
  Pleurocoronis laphamioides (Rose) R.M. King & H. Rob. -- accepted
  Poa abbreviata f. arenaria Rosenv. -- not accepted
  Poa hartzii f. arenaria (Rosenv.) T.J. Sørensen -- not accepted
  Podistera eastwoodiae (J.M. Coult. & Rose) Mathias & Constance -- accepted -- Eastwood's podistera
  Podistera macounii (J.M. Coult. & Rose) Mathias & Constance -- accepted -- Macoun's woodroot
  Poinciana mexicana (A. Gray) Rose -- not accepted
  Poincianella Britton & Rose -- accepted
  Poincianella mexicana (A. Gray) Britton & Rose -- accepted -- Mexican holdback, Mexican poinciana
  Poincianella myabensis (Britton) Britton & Rose -- accepted
  Poinsettia eriantha (Benth.) Rose & Standl. -- not accepted
  Polygala minutifolia auct. non Rose -- not accepted
  Polypogon parvulus Roseng., B.R. Arrill. & Izag. -- accepted
  Polytaenia nuttallii var. texana J.M. Coult. & Rose -- not accepted
  Polytaenia texana (J.M. Coult. & Rose) Mathias & Constance -- accepted -- Texas parsley, Texas prairie parsley
  Poponax macracanthoides (Bertero ex DC.) Britton & Rose -- not accepted
  Populus fremontii var. macdougalii (Rose) Jeps. -- not accepted
  Populus macdougalii Rose -- not accepted
  Porphyropsis Rosenvinge -- accepted
  Porphyropsis coccinea (Agardh and Areschoug) Rosenvinge -- accepted
  Praecereus euchlorus ssp. diffusus (Britton & Rose) N.P. Taylor -- accepted
  Praecereus euchlorus ssp. smithianus (Britton & Rose) N.P. Taylor -- accepted
  Praecereus maritimus (Britton & Rose) Buxb. -- not accepted
  Praecereus smithianus (Britton & Rose) Buxb. -- not accepted
  Pseudabutilon lozanii (Rose) R.E. Fr. -- not accepted
  Pseudoacanthocereus brasiliensis (Britton & Rose) F. Ritter -- accepted
  Pseudocymopterus J.M. Coult. & Rose -- accepted -- false spring parsley, false springparsley
  Pseudocymopterus montanus (A. Gray) J.M. Coult. & Rose -- accepted -- alpine false springparsley, anise, false springparsley
  Pseudocymopterus tidestromii J.M. Coult. & Rose -- not accepted
  Pseudolobivia aurea (Britton & Rose) Backeb. -- not accepted
  Pseudolobivia ferox (Britton & Rose) Backeb. -- not accepted
  Pseudolobivia longispina (Britton & Rose) Backeb. ex Krainz -- not accepted
  Pseudopilocereus zehntneri (Britton & Rose) P.V. Heath -- not accepted
  Pseudorhipsalis Britton & Rose -- accepted
  Pseudorhipsalis alata (Sw.) Britton & Rose -- accepted
  Pseudorhipsalis amazonica ssp. panamensis (Britton & Rose) Ralf Bauer -- accepted
  Pseudorhipsalis himantoclada (Rol.-Goss.) Britton & Rose -- accepted
  Pterocactus fischeri Britton & Rose -- accepted
  Pterocactus hickenii Britton & Rose -- accepted
  Pterocactus pumilus Britton & Rose -- not accepted
  Pterocactus skottsbergii (Britton & Rose) Backeb. -- not accepted
  Pterocactus tuberosus (Pfeiff.) Britton & Rose -- accepted
  Pteryxia (Nutt. ex Torr. & A. Gray) Nutt. ex J.M. Coult. & Rose -- accepted -- springparsley, wavewing
  Pteryxia davidsonii (J.M. Coult. & Rose) Mathias & Constance -- accepted -- Davidson's wavewing
  Pteryxia hendersonii (J.M. Coult. & Rose) Mathias & Constance -- accepted -- Henderson's desertparsley, Henderson's springparsley, Henderson's wavewing
  Pteryxia petraea (M.E. Jones) J.M. Coult. & Rose -- accepted -- rock springparsley, rockloving desert parsley, rockloving wavewing
  Pteryxia terebinthina (Hook.) J.M. Coult. & Rose -- accepted -- smoothshore springparsley, Terebinth springparsley, turpentine wavewing
  Pteryxia terebinthina var. californica (J.M. Coult. & Rose) Mathias -- not accepted -- California wavewing
  Pteryxia terebinthina var. terebinthina (Hook.) J.M. Coult. & Rose -- accepted -- turpentine wavewing
  Ptilimnium fluviatile (Rose) Mathias -- not accepted
  Ptilimnium fluviatile var. viviparum (Rose) Reveal & Broome -- not accepted
  Ptilimnium nodosum (Rose) Mathias -- accepted -- harperella, piedmont mock bishopweed
  Ptilimnium texense J.M. Coult. & Rose -- not accepted
  Ptilimnium viviparum (Rose) Mathias -- not accepted
  Ptilimnium X texense J.M. Coult. & Rose (pro. sp.) -- not accepted -- Texan ptilimnium
  Ptisana novoguineensis (Rosenst.) Murdock -- accepted
  Quiabentia Britton & Rose -- accepted
  Quiabentia zehntneri (Britton & Rose) Britton & Rose -- accepted
  Raimannia curtissii Rose -- not accepted
  Raimannia drummondii (Hook.) Rose -- not accepted
  Raimannia grandis (Britton) Rose -- not accepted
  Raimannia humifusa (Nutt.) Rose -- not accepted
  Raimannia laciniata (Hill) Rose -- not accepted
  Raimannia rhombipetala (Nutt. ex Torr. & A. Gray) Rose -- not accepted
  Ranunculus cooleyae Vasey & Rose -- accepted -- Cooley's false buttercup
  Rathbunia Britton & Rose -- not accepted
  Rathbunia alamosensis (J.M. Coult.) Britton & Rose -- not accepted
  Rathbunia kerberi (K. Schum.) Britton & Rose -- not accepted
  Rathbunia sonorensis (Runge ex K. Schum.) Britton & Rose -- not accepted
  Rebutia deminuta (F.A.C. Weber) Britton & Rose -- accepted
  Rebutia deminuta ssp. deminuta (F.A.C. Weber) Britton & Rose -- accepted
  Rebutia fiebrigii (Gürke) Britton & Rose -- accepted
  Rebutia pseudominuscula (Speg.) Britton & Rose -- not accepted
  Rebutia pygmaea (R.E. Fr.) Britton & Rose -- accepted
  Rebutia steinmannii (Solms) Britton & Rose -- accepted
  Rhipsalidopsis Britton & Rose -- not accepted
  Rhipsalidopsis rosea (Lagerh.) Britton & Rose -- not accepted
  Rhipsalis baccifera ssp. shaferi (Britton & Rose) Barthlott & N.P. Taylor -- accepted
  Rhipsalis burchellii Britton & Rose -- accepted
  Rhipsalis cuneata Britton & Rose -- accepted
  Rhipsalis floccosa ssp. pittieri (Britton & Rose) Barthlott & N.P. Taylor -- accepted
  Rhipsalis heteroclada Britton & Rose -- not accepted
  Rhipsalis loefgrenii Britton & Rose -- not accepted
  Rhipsalis pittieri Britton & Rose -- not accepted
  Rhipsalis russellii Britton & Rose -- accepted
  Rhipsalis shaferi Britton & Rose -- not accepted
  Rhodiola integrifolia ssp. leedyi (Rosend. & J.W. Moore) Kartesz -- not accepted -- Leedy's stonecrop
  Rhodiola integrifolia ssp. leedyi (Rosend. & J.W. Moore) H. Ohba -- accepted -- Leedy's stonecrop
  Rhodocactus colombianus (Britton & Rose) F.M. Knuth -- not accepted
  Rhodocactus cubensis (Britton & Rose) F.M. Knuth -- not accepted
  Rhodochorton purpureum (Lightfoot) Rosenvinge -- accepted
  Rhysopterus plurijugus J.M. Coult. & Rose -- not accepted
  Ribes lentum (M.E. Jones) Coville & Rose -- not accepted
  Ritterocereus eichlamii (Britton & Rose) Backeb. -- not accepted
  Rosenvingiella polyrhiza (Rosenvinge) P. C. Silva -- accepted
  Roseocactus lloydii (Rose) A. Berger -- not accepted
  Roseodendron donnell-smithii (Rose) Miranda -- accepted -- primavera
  Runyonia longiflora Rose -- not accepted
  Sairocarpus watsonii (Vasey & Rose) D.A. Sutton -- accepted -- Watson's snapdragon
  Salix barrattiana var. tweedyi Bebb ex Rose -- not accepted
  Salix myrtillifolia var. curtiflora (Andersson) Bebb ex Rose -- not accepted
  Salix myrtillifolia var. curtiflora auct. non (Andersson) Bebb ex Rose -- not accepted
  Salix tweedyi (Bebb ex Rose) C.R. Ball -- accepted -- tweedy willow, Tweedy's willow
  Sanicula arguta Greene ex J.M. Coult. & Rose -- accepted -- sharptooth blacksnakeroot
  Sanicula crassicaulis var. howellii (J.M. Coult. & Rose) Mathias -- not accepted
  Sanicula X howellii (J.M. Coult. & Rose) Shan & Constance -- not accepted
  Saxifraga aequidentata (Small) Rosend. -- not accepted
  Saxifraga bronchialis var. vespertina (Small) Rosend. -- not accepted
  Saxifraga caespitosa var. emarginata (Small) Rosend. -- not accepted
  Saxifraga cespitosa ssp. cespitosa var. emarginata (Small) Rosend. -- not accepted -- tufted alpine saxifrage
  Saxifraga integrifolia var. claytoniifolia (Canby ex Small) Rosend. -- not accepted
  Schizachyrium biciliatum Roseng., B.R. Arrill. & Izag. -- not accepted
  Schizachyrium bimucronatum Roseng., B.R. Arrill. & Izag. -- not accepted
  Schizachyrium microstachyum (Desv. ex Ham.) Roseng., B.R. Arrill. & Izag. -- accepted
  Schizachyrium microstachyum ssp. elongatum (Hack.) Roseng., B.R. Arrill. & Izag. -- not accepted
  Schizachyrium microstachyum ssp. microstachyum (Desv. ex Ham.) Roseng., B.R. Arrill. & Izag. -- not accepted
  Schizachyrium mucronatum Roseng., B.R. Arrill. & Izag. -- not accepted
  Schizachyrium spicatum var. breviarticulatum Roseng., B.R. Arrill. & Izag. -- not accepted
  Schlumbergera gaertneri (Regel) Britton & Rose -- not accepted
  Schlumbergera russelliana (Hook.) Britton & Rose -- accepted
  Schrankia hystricina (Small ex Britton & Rose) Standl. -- not accepted
  Schrankia nuttalii var. hystricina (Small ex Britton & Rose) Isley -- not accepted
  Schrankia nuttallii (DC. ex Britton & Rose) Standl. -- not accepted
  Schrankia nuttallii var. hystricina (Small ex Britton & Rose) Isely -- not accepted
  Schrankia nuttallii var. nuttallii (DC. ex Britton & Rose) Standl. -- not accepted -- Nuttall's sensitive briar
  Sclerocactus Britton & Rose -- accepted -- fishhook cactus
  Sclerocactus polyancistrus (Engelm. & J.M. Bigelow) Britton & Rose -- accepted -- Mohave fishhook cactus, Mojave fishhook cactus, redspined fishhook cactus
  Sclerocactus whipplei (Engelm. & J.M. Bigelow) Britton & Rose -- accepted -- Whipple's fishhook cactus
  Sclerocactus whipplei ssp. whipplei (Engelm. & J.M. Bigelow) Britton & Rose -- not accepted
  Sclerocactus whipplei var. whipplei (Engelm. & J.M. Bigelow) Britton & Rose -- not accepted -- Whipple's fishhook cactus
  Sedella Britton & Rose -- accepted -- mock stonecrop
  Sedella congdonii (Eastw.) Britton & Rose -- not accepted -- Congdon's mock stonecrop
  Sedella pumila (Benth.) Britton & Rose -- accepted -- Sierra mock stonecrop
  Sedum alaskanum (Rose) Rose ex Hutch. -- not accepted
  Sedum griffithsii Rose -- not accepted
  Sedum harvardii Rose -- not accepted
  Sedum havardii Rose -- accepted -- Havard's stonecrop
  Sedum integrifolium ssp. leedyi (Rosend. & J.W. Moore) R.T. Clausen -- not accepted -- Leedy's roseroot, Leedy's stonecrop
  Sedum laxum ssp. retusum (Rose) R.T. Clausen -- not accepted
  Sedum obtusatum ssp. retusum (Rose) R.T. Clausen -- not accepted -- Sierra stonecrop
  Sedum obtusatum var. retusum (Rose) H. Ohba -- accepted -- Sierra stonecrop
  Sedum rosea var. alaskanum (Rose) A. Berger -- not accepted
  Sedum rosea var. leedyi Rosend. & J.W. Moore -- not accepted
  Sedum roseum var. alaskanum (Rose) A. Berger -- not accepted
  Sedum roseum var. leedyi Rosend. & J.W. Moore -- not accepted
  Selenicereus (A. Berger) Britton & Rose -- accepted -- moonlight cactus
  Selenicereus boeckmanni (Otto ex Salm-Dyck) Britton & Rose -- not accepted
  Selenicereus boeckmannii (Otto ex Salm-Dyck) Britton & Rose -- not accepted
  Selenicereus brevispinus Britton & Rose -- not accepted
  Selenicereus coniflorus (Weing.) Britton & Rose -- not accepted -- coneflower moonlight cactus, Pitayita-noctirna de culebra
  Selenicereus donkelaarii (Salm-Dyck) Britton & Rose -- not accepted
  Selenicereus grandiflorus (L.) Britton & Rose -- accepted -- Pitayita-nocturna reina de la noche, queen of the night
  Selenicereus grandiflorus ssp. grandiflorus (L.) Britton & Rose -- accepted
  Selenicereus hamatus (Scheidw.) Britton & Rose -- accepted
  Selenicereus hondurensis (K. Schum. ex Weing) Britton & Rose -- not accepted
  Selenicereus inermis (Otto) Britton & Rose -- accepted
  Selenicereus kunthianus (hort. ex Salm-Dyck) Britton & Rose -- not accepted
  Selenicereus macdonaldiae (Hook.) Britton & Rose -- not accepted
  Selenicereus maxonii Rose -- not accepted
  Selenicereus murrillii Britton & Rose -- accepted
  Selenicereus nelsonii (Weing.) Britton & Rose -- accepted
  Selenicereus pringlei Rose -- not accepted
  Selenicereus pteranthus (Link ex A. Dietr.) Britton & Rose -- accepted -- Pitayita-nocturna flor de la noche, princess of the night
  Selenicereus spinulosus (DC.) Britton & Rose -- accepted -- nightblooming cereus, Pitayita-nocturna espinosa, vinelike moonlight cactus
  Selenicereus urbanianus (Gürke & Weing.) Britton & Rose -- not accepted
  Selenicereus vagans (Brandegee) Britton & Rose -- accepted
  Selenicereus wercklei (F.A.C. Weber) Britton & Rose -- not accepted
  Senegalia angustifolia (Lam.) Britton & Rose -- accepted
  Senegalia berlandieri (Benth.) Britton & Rose -- accepted -- guajillo
  Senegalia emoryana (Benth.) Britton & Rose -- not accepted
  Senegalia greggii (A. Gray) Britton & Rose -- accepted -- catclaw acacia
  Senegalia muricata (L.) Britton & Rose -- accepted -- spineless wattle
  Senegalia riparia (Kunth) Britton & Rose -- accepted
  Senegalia roemerana (Scheele) Britton & Rose -- not accepted
  Senegalia roemeriana (Scheele) Britton & Rose -- accepted -- roundflower catclaw
  Senegalia vogeliana (Steud.) Britton & Rose -- accepted -- macata bourse bastard
  Senegalia westiana (DC.) Britton & Rose -- not accepted
  Senegalia wrightii (Benth.) Britton & Rose -- not accepted
  Senna durangensis (Rose) H.S. Irwin & Barneby -- accepted -- Durango senna, Durango wild sensitive plant
  Senna durangensis var. durangensis (Rose) H.S. Irwin & Barneby -- accepted -- Durango senna
  Senna orcuttii (Britton & Rose) H.S. Irwin & Barneby -- accepted -- Orcutt's senna, Orcutt's wild sensitive plant
  Sida helleri Rose ex A. Heller -- not accepted
  Sida holwayi Baker f. & Rose -- not accepted
  Soehrensia bruchii (Britton & Rose) Backeb. -- not accepted
  Solanum grayi Rose -- accepted
  Solanum grayi var. grayi Rose -- accepted
  Solanum palmeri Vasey & Rose -- accepted
  Solidago missouriensis var. glaberrima (M. Martens) Rosend. & Cronquist -- not accepted
  Solisia Britton & Rose -- not accepted
  Solisia pectinata (Stein) Britton & Rose -- not accepted
  Sorghastrum stipoides ssp. agrostoides (Speg.) Roseng., B.R. Arrill. & Izag. -- not accepted
  Sphaeralcea emoryi ssp. arida (Rose) Kearney -- not accepted
  Sphaeralcea emoryi var. arida (Rose) Kearney -- not accepted
  Sphaeralcea orcuttii Rose -- accepted -- Carrizo creek globe-mallow, Carrizo Creek globemallow
  Sphaeropteris albidosquamata (Rosenst.) R.M. Tryon -- not accepted
  Sphaeropteris tenggerensis (Rosenst.) R.M. Tryon -- not accepted
  Sphaeropteris werneri (Rosenst.) R.M. Tryon -- not accepted
  Sphinctospermum Rose -- accepted
  Sphinctospermum constrictum (S. Watson) Rose -- accepted -- hourglass peaseed
  Sphinotospermum Rose -- not accepted
  Sphinotospermum constrictum (S. Watson) Rose -- not accepted
  Sporobolus adustus (Trin.) Roseng., B.R. Arrill. & Izag. -- accepted
  Sporobolus monandrus Roseng., B.R. Arrill. & Izag. -- accepted
  Stenocactus lloydii (Britton & Rose) A. Berger -- not accepted
  Stenocereus eichlamii (Britton & Rose) Buxb. -- accepted
  Stenocereus humilis (Britton & Rose) D.R. Hunt -- accepted
  Stenocereus longispinus (Britton & Rose) Buxb. -- not accepted
  Stenocereus montanus (Britton & Rose) Buxb. -- accepted
  Stenocereus treleasei (Rose) Backeb. -- accepted
  Stetsonia Britton & Rose -- accepted
  Stetsonia coryne (Salm-Dyck) Britton & Rose -- accepted
  Stipa crassiflora Roseng. & B.R. Arrill. -- not accepted
  Stipa leptocoronata Roseng. & B.R. Arrill. -- not accepted
  Stipa longicoronata Roseng. & B.R. Arrill. -- not accepted
  Stipa megapotamia var. latiflora Roseng. & Izag. -- not accepted
  Stipa megapotamia var. pauciciliata Roseng. & Izag. -- not accepted
  Stipa nutans var. quinqueciliata Roseng. & Izag. -- not accepted
  Stipa pauciciliata (Roseng. & Izag.) Roseng., B.R. Arrill. & Izag. -- not accepted
  Stipa quinqueciliata (Roseng. & Izag.) Zanin Buri & Izag. -- not accepted
  Strombocactus Britton & Rose -- accepted
  Strombocactus disciformis (DC.) Britton & Rose -- accepted
  Strombocactus disciformis ssp. disciformis (DC.) Britton & Rose -- accepted
  Strophocactus Britton & Rose -- accepted
  Strophocactus wittii (K. Schum.) Britton & Rose -- accepted
  Stylophyllum albidum Rose -- not accepted
  Stylophyllum edule (Nutt.) Britton & Rose -- not accepted
  Stylophyllum hassei Rose -- not accepted
  Stylophyllum insulare Rose -- not accepted
  Stylophyllum orcuttii Rose -- not accepted
  Stylophyllum traskiae Rose -- not accepted
  Stylophyllum virens Rose -- not accepted
  Stylophyllum viscidum (S. Watson) Britton & Rose -- not accepted
  Subpilocereus grenadensis (Britton & Rose) Backeb. -- not accepted
  Sullivantia purpusii (Brandegee) Rosend. -- not accepted
  Sullivantia renifolia Rosend. -- not accepted
  Tabebuia donnell-smithii Rose -- not accepted -- primavera
  Tacinga Britton & Rose -- accepted
  Tacinga funalis Britton & Rose -- accepted
  Tacinga palmadora (Britton & Rose) N.P. Taylor & Stuppy -- accepted
  Talinum chrysanthum Rose & Standl. -- not accepted -- Trans-Pecos fameflower
  Tara spinosa (Molina) Britton & Rose -- accepted -- spiny holdback
  Tauschia glauca (J.M. Coult. & Rose) Mathias & Constance -- accepted -- glaucous tauschia, glaucous umbrellawort
  Tauschia howellii (J.M. Coult. & Rose) J.F. Macbr. -- accepted -- Howell's tauschia, Howell's umbrellawort
  Tauschia parishii (J.M. Coult. & Rose) J.F. Macbr. -- accepted -- Parish's umbrellawort
  Tauschia stricklandii (J.M. Coult. & Rose) Mathias & Constance -- accepted -- Strickland's umbrellawort
  Tephrocactus alexanderi (Britton & Rose) Backeb. -- accepted
  Tephrocactus hickenii (Britton & Rose) Speg. -- not accepted
  Tephrocactus russellii (Britton & Rose) Backeb. -- not accepted
  Tetrorum pusillum (Michx.) Rose -- not accepted
  Thaspium aureum var. trifoliatum (L.) J.M. Coult. & Rose -- not accepted
  Thaspium barbinode var. angustifolium J.M. Coult. & Rose -- not accepted
  Thaspium chapmanii (J.M. Coult. & Rose) Small -- not accepted
  Thelocactus (K. Schum.) Britton & Rose -- accepted
  Thelocactus bicolor (Galeotti ex Pfeiff.) Britton & Rose -- accepted -- Biznaga-pezón bicolor, glory of Texas
  Thelocactus bicolor ssp. bicolor (Galeotti ex Pfeiff.) Britton & Rose -- accepted
  Thelocactus bicolor var. bicolor (Galeotti ex Pfeiff.) Britton & Rose -- not accepted -- glory of Texas
  Thelocactus buekii (Klein bis) Britton & Rose -- accepted
  Thelocactus hexaedrophorus (Lem.) Britton & Rose -- accepted
  Thelocactus hexaedrophorus ssp. hexaedrophorus (Lem.) Britton & Rose -- accepted
  Thelocactus hexaedrophorus ssp. lloydii (Britton & Rose) N.P. Taylor -- accepted
  Thelocactus leucacanthus (Zucc. ex Pfeiff.) Britton & Rose -- accepted
  Thelocactus leucacanthus ssp. leucacanthus (Zucc. ex Pfeiff.) Britton & Rose -- accepted
  Thelocactus rinconensis (Poselger) Britton & Rose -- accepted
  Thelocactus rinconensis ssp. rinconensis (Poselger) Britton & Rose -- accepted
  Thelocactus tulensis (Polseg.) Britton & Rose -- accepted
  Thelocactus tulensis ssp. tulensis (Polseg.) Britton & Rose -- not accepted
  Thurovia Rose -- accepted -- thurovia
  Thurovia triflora Rose -- accepted -- threeflower snakeweed
  Tillaea longipes Rose -- not accepted
  Tillaeastrum pringlei Rose -- not accepted
  Tillandsia baileyi Rose ex Small -- accepted -- reflexed airplant, Tillandsia de Bailey
  Toumeya Britton & Rose -- not accepted
  Toumeya papyracantha (Engelm.) Britton & Rose -- not accepted
  Tradescantia brevifolia (Torr.) Rose -- accepted -- Trans-Pecos spiderwort, TransPecos spiderwort
  Tradescantia gigantea Rose -- accepted -- giant spiderwort
  Tradescantia humilis Rose -- accepted -- Texas spiderwort
  Tradescantia occidentalis var. scopulorum (Rose) E.S. Anderson & Woodson -- accepted -- prairie spiderwort
  Tradescantia pallida (Rose) D.R. Hunt -- accepted -- purple queen
  Tradescantia scopulorum Rose -- not accepted
  Tradescantia wrightii Rose & Bush -- accepted -- Wright's spiderwort
  Tradescantia wrightii var. wrightii Rose & Bush -- not accepted -- Wright's spiderwort
  Trichantha elegans Rose ex C.V. Morton -- not accepted
  Trichocereus bridgesii (Salm-Dyck) Britton & Rose -- not accepted
  Trichocereus bruchii (Britton & Rose) F. Ritter -- not accepted
  Trichocereus candicans (Gillies ex Salm-Dyck) Britton & Rose -- not accepted
  Trichocereus chiloensis (Colla) Britton & Rose -- not accepted
  Trichocereus coquimbanus (Molina) Britton & Rose -- not accepted
  Trichocereus cuzcoensis Britton & Rose -- not accepted
  Trichocereus grandis (Britton & Rose) F. Ritter -- not accepted
  Trichocereus huascha (F.A.C. Weber) Britton & Rose -- not accepted
  Trichocereus pachanoi Britton & Rose -- not accepted
  Trichocereus pasacana (F.A.C. Weber ex Rümpler) Britton & Rose -- not accepted
  Trichocereus peruvianus Britton & Rose -- not accepted
  Trichocereus schickendantzii (F.A.C. Weber) Britton & Rose -- not accepted
  Trichocereus shaferi Britton & Rose -- not accepted
  Trichocereus strigosus (Salm-Dyck) Britton & Rose -- not accepted
  Trichocereus terscheckii (J. Parm. ex Pfeiff.) Britton & Rose -- not accepted
  Trichocereus thelegonoides (Speg.) Britton & Rose -- not accepted
  Trichocereus thelegonus (F.A.C. Weber) Britton & Rose -- not accepted
  Tumamoca Rose -- accepted
  Tumamoca macdougalii Rose -- accepted -- Tumamoc globe-berry, Tumamoc globeberry
  Tunilla soehrensii (Britton & Rose) D.R. Hunt & Iliff -- accepted
  Utahia Britton & Rose -- not accepted
  Utahia sileri (Engelm. ex J.M. Coult.) Britton & Rose -- not accepted
  Vachellia vernicosa (Britton & Rose) Seigler & Ebinger -- accepted -- viscid acacia
  Viguiera deltoidea var. parishii (Greene) Vasey & Rose -- not accepted
  Villadia Rose -- accepted
  Villadia squamulosa (S. Watson) Rose -- accepted -- rat's-tail succulent, ratstail succulent
  Villadia texana (Sm.) Rose -- not accepted
  Washingtonia obtusa J.M. Coult. & Rose -- not accepted
  Washingtonia purpurea J.M. Coult. & Rose -- not accepted
  Weberocereus Britton & Rose -- accepted
  Weberocereus biolleyi (F.A.C. Weber) Britton & Rose -- not accepted
  Weberocereus bradei (Britton & Rose) G.D. Rowley -- accepted
  Weberocereus panamensis Britton & Rose -- not accepted
  Weberocereus tunilla (F.A.C. Weber) Britton & Rose -- accepted
  Werckleocereus Britton & Rose -- not accepted
  Werckleocereus glaber (Eichlam) Britton & Rose -- not accepted
  Werckleocereus tonduzii (F.A.C. Weber) Britton & Rose -- not accepted
  Wilcoxia Britton & Rose -- not accepted
  Wilcoxia papillosa Britton & Rose -- not accepted
  Wilcoxia poselgeri (Lem.) Britton & Rose -- not accepted
  Wilcoxia striata (Brandegee) Britton & Rose -- not accepted
  Wilcoxia viperina (F.A.C. Weber) Britton & Rose -- not accepted
  Wilmattea Britton & Rose -- not accepted
  Wilmattea minutiflora (Britton & Rose) Britton & Rose -- not accepted
  Wittiocactus panamensis (Britton & Rose) Rauschert -- not accepted
  Xylorhiza orcuttii (Vasey & Rose) Greene -- accepted -- Orcutt's aster
  Zehntnerella Britton & Rose -- not accepted
  Zehntnerella squamulosa Britton & Rose -- not accepted
  Zizia arenicola Rose -- not accepted
  Zizia bebbii (J.M. Coult. & Rose) Britton -- not accepted
 
 Kingdom Bacteria
  Acholeplasma morum Rose et al., 1980 -- valid
  Enterobacter cancerogenus (Urosevic, 1966) Dickey and Zumoff, 1988 -- valid
  Enterobacter cloacae dissolvens (Rosen, 1922) Hoffmann et al., 2005 -- valid
  Enterobacter dissolvens (Rosen, 1922) Brenner et al., 1988 -- invalid
  Erwinia cancerogena Urosevic, 1966 -- invalid
  Erwinia dissolvens (Rosen, 1922) Burkholder, 1948 -- invalid
  Erysipelothrix Rosenbach, 1909 -- valid
  Klebsiella variicola Rosenblueth et al., 2004 -- valid
  Mesoplasma lactucae (Rose et al., 1990) Tully et al., 1993 -- valid
  Mycoplasma citelli Rose et al., 1978 -- valid
  Mycoplasma cynos Rosendal, 1973 -- valid
  Mycoplasma lactucae Rose et al., 1990 -- invalid
  Mycoplasma molare Rosendal, 1974 -- valid
  Mycoplasma opalescens Rosendal, 1975 -- valid
  Pasteurella multocida (Lehmann and Neumann, 1899) Rosenbusch and Merchant, 1939 -- valid
  Pasteurella multocida multocida (Lehmann and Neumann, 1899) Rosenbusch and Merchant, 1939 -- valid
  Roseateles Roseateles Suyama et al., 1999 emend. Gomila et al., 2008 -- valid
  Scytonematopsis ambigua Emoto and Hirose, 1952 -- invalid
  Staphylococcus Rosenbach, 1884 -- valid
  Staphylococcus aureus Rosenbach, 1884 -- valid
  Staphylococcus aureus aureus Rosenbach, 1884 -- valid
  Streptococcus Rosenbach, 1884 -- valid
  Streptococcus pyogenes Rosenbach, 1884 -- valid
   

A gray bar