| | |
| | Abronia alpina Brandegee |
| | Abronia covillei Heimerl |
| | Abronia elliptica A.Nelson |
| | Abronia fragrans Nutt. ex Hook. |
| | Abronia latifolia Eschsch. |
| | Abronia mellifera Douglas ex Hook. |
| | Abronia nana S.Watson |
| | Acaena pinnatifida Ruiz & Pav. |
| | Achlys triphylla DC. |
| | Acmispon argophyllus (A.Gray) Brouillet trib. Loteae |
| | Acmispon argyraeus (Greene) Brouillet |
| | Acmispon decumbens (Benth.) Govaerts trib. Loteae |
| | Acmispon oroboides (Kunth) Brouillet trib. Loteae |
| | Actaea rubra (Aiton) Willd. |
| | Adeia whitneyi (A.Gray) G.L.Nesom trib. Astereae |
| | Agastache cusickii (Greenm.) A.Heller |
| | Ageratina shastensis (D.W.Taylor & Stebbins) M.King & H.Rob. trib. Eupatorieae |
| | Agnorhiza bolanderi (A.Gray) W.A.Weber trib. Heliantheae |
| | Agnorhiza ovata (Torr. & A.Gray) W.A.Weber trib. Heliantheae |
| | Agoseris apargioides (Less.) Greene trib. Cichorieae |
| | Agoseris aurantiaca (Hook.) Greene trib. Cichorieae |
| | Agoseris eastwoodiae Fedde trib. Cichorieae |
| | Agoseris glauca (Pursh) Raf. trib. Cichorieae |
| | Agoseris grandiflora (Nutt.) Greene trib. Cichorieae |
| | Agoseris hirsuta Greene trib. Cichorieae |
| | Agoseris maritima E.Sheld. trib. Cichorieae |
| | Agoseris monticola Greene trib. Cichorieae |
| | Agoseris parviflora (Nutt.) D.Dietr. trib. Cichorieae |
| | Agoseris purpurea (A.Gray) Greene |
| | Agoseris retrorsa (Benth.) Greene trib. Cichorieae |
| | Aliciella caespitosa (A.Gray) J.M.Porter |
| | Aliciella ripleyi (Barneby) J.M.Porter |
| | Aliciella stenothyrsa (A.Gray) J.M.Porter |
| | Aliciella subnuda (Torr. ex A.Gray) J.M.Porter |
| | Amsonia arenaria Standl. trib. Vinceae |
| | Amsonia jonesii Woodson trib. Vinceae |
| | Amsonia tomentosa Torr. & Frém. trib. Vinceae |
| | Andersonglossum occidentale (A.Gray) J.I.Cohen |
| | Androsace lehmanniana Spreng. sect. Chamaejasme |
| | Anelsonia eurycarpa (A.Gray) J.F.Macbr. & Payson |
| | Anemonastrum deltoideum (Douglas) Mosyakinn |
| | Anemone cylindrica A.Gray |
| | Anemone drummondii S.Watson |
| | Anemone hudsoniana (DC.) Richardson |
| | Anemone parviflora Michx. |
| | Anemone stylosa A.Nelson |
| | Anemone tetonensis Porter ex Britton |
| | Anemone tuberosa Rydb. |
| | Anemonoides grayi (Behr & Kellogg) Starod. |
| | Anemonoides oregana (A.Gray) Holub |
| | Anemonoides piperi (Rydb.) Holub |
| | Antennaria anaphaloides Rydb. trib. Gnaphalieae |
| | Antennaria arcuata Cronquist trib. Gnaphalieae |
| | Antennaria argentea Benth. trib. Gnaphalieae |
| | Antennaria arida E.E.Nelson trib. Gnaphalieae |
| | Antennaria confinis Greene trib. Gnaphalieae |
| | Antennaria corymbosa E.E.Nelson trib. Gnaphalieae |
| | Antennaria dimorpha Torr. & A.Gray trib. Gnaphalieae |
| | Antennaria flagellaris (A.Gray) A.Gray trib. Gnaphalieae |
| | Antennaria geyeri A.Gray trib. Gnaphalieae |
| | Antennaria howellii Greene trib. Gnaphalieae |
| | Antennaria lanata Greene |
| | Antennaria luzuloides Torr. & Gray trib. Gnaphalieae |
| | Antennaria marginata Greene trib. Gnaphalieae |
| | Antennaria media Greene trib. Gnaphalieae |
| | Antennaria microcephala A.Gray trib. Gnaphalieae |
| | Antennaria microphylla Rydb. trib. Gnaphalieae |
| | Antennaria parvifolia Nutt. trib. Gnaphalieae |
| | Antennaria pulchella Greene trib. Gnaphalieae |
| | Antennaria pulcherrima (Hook.) Greene trib. Gnaphalieae |
| | Antennaria pulvinata Greene trib. Gnaphalieae |
| | Antennaria racemosa Hook. trib. Gnaphalieae |
| | Antennaria rosea Greene trib. Gnaphalieae |
| | Antennaria rosulata Rydb. trib. Gnaphalieae |
| | Antennaria sawyeri R.J.Bayer & Figura |
| | Antennaria soliceps S.F.Blake trib. Gnaphalieae |
| | Antennaria stenophylla (A.Gray) A.Gray trib. Gnaphalieae |
| | Antennaria suffrutescens Greene trib. Gnaphalieae |
| | Antennaria umbrinella Rydb. trib. Gnaphalieae |
| | Aquilegia barnebyi Munz |
| | Aquilegia chrysantha A.Gray |
| | Aquilegia coerulea E.James |
| | Aquilegia desertorum (M.E.Jones) Cockerell ex A.Heller |
| | Aquilegia elegantula Greene |
| | Aquilegia eximia Van Houtte ex Planch. |
| | Aquilegia flavescens S.Watson |
| | Aquilegia formosa Fisch. ex DC. |
| | Aquilegia grahamii S.L.Welsh & Goodrich |
| | Aquilegia hypolasia Greene |
| | Aquilegia longissima A.Gray ex S.Watson |
| | Aquilegia loriae S.L.Welsh & N.D.Atwood |
| | Aquilegia micrantha Eastw. |
| | Aquilegia pinetorum Tidestr. |
| | Aquilegia pubescens Coville |
| | Aquilegia scopulorum Tidestr. |
| | Aquilegia shockleyi Eastw. |
| | Aquilegia truncata Fisch. & C.A.Mey. |
| | Arabis blepharophylla Hook. & Arn. |
| | Arabis mcdonaldiana Eastw. |
| | Arabis modesta Rollins |
| | Arabis nuttallii (Kuntze) B.L.Rob. |
| | Arabis oregana Rollins |
| | Arctomecon californica Torr. & Frém. |
| | Arctomecon humilis Coville |
| | Arctomecon merriamii Coville |
| | Arctostaphylos klamathensis S.W.Edwards & al. |
| | Arctostaphylos mendocinoensis P.V.Wells |
| | Arctostaphylos nevadensis A.Gray |
| | Arctostaphylos pacifica Roof |
| | Arctostaphylos pumila Nutt. |
| | Arctostaphylos pungens Kunth |
| | Arctostaphylos uva-ursi (L.) Spreng. |
| | Arenaria saxosa A.Gray |
| | Armeria californica (Boiss.) P.M.Sl. |
| | Armeria maritima (Mill.) Willd. |
| | Arnica cernua Howell trib. Heliantheae |
| | Arnica chamissonis Less. trib. Heliantheae |
| | Arnica cordifolia Hook. trib. Heliantheae |
| | Arnica dealbata (A.Gray) B.G.Baldwin trib. Heliantheae |
| | Arnica fulgens Pursh trib. Heliantheae |
| | Arnica gracilis Rydb. trib. Heliantheae |
| | Arnica latifolia Bong. trib. Heliantheae |
| | Arnica nevadensis A.Gray trib. Heliantheae |
| | Arnica parryi A.Gray trib. Heliantheae |
| | Arnica rydbergii Greene trib. Heliantheae |
| | Arnica sororia Greene trib. Heliantheae |
| | Arnica spathulata Greene trib. Heliantheae |
| | Arnica venosa H.M.Hall trib. Heliantheae |
| | Arnica viscosa A.Gray trib. Heliantheae |
| | Artemisia albicans Son.Garcia & al. trib. Anthemideae |
| | Artemisia arbuscula Nutt. trib. Anthemideae |
| | Artemisia bolanderi A.Gray trib. Anthemideae |
| | Artemisia borealis Pall. trib. Anthemideae |
| | Artemisia capitata (Nutt.) Són.Garcia & al. trib. Anthemideae |
| | Artemisia carruthii Alph.Wood ex J.H.Carruth trib. Anthemideae |
| | Artemisia constricta Són.Garcia & al. trib. Anthemideae |
| | Artemisia frigida Willd. trib. Anthemideae |
| | Artemisia inaequifolia Són.Garcia & al. trib. Anthemideae |
| | Artemisia longiloba (Osterh.) Beetle trib. Anthemideae |
| | Artemisia nesiotica P.H.Raven trib. Anthemideae |
| | Artemisia nova A.Nelson trib. Anthemideae |
| | Artemisia nuttallii (Torr. & A.Gray) Mosyakin & al. trib. Anthemideae |
| | Artemisia packardiae J.W.Grimes & Ertter trib. Anthemideae |
| | Artemisia papposa S.F.Blake & Cronquist trib. Anthemideae |
| | Artemisia parryi A.Gray trib. Anthemideae |
| | Artemisia potentilloides A.Gray trib. Anthemideae |
| | Artemisia pygmaea A.Gray trib. Anthemideae |
| | Artemisia rothrockii A.Gray trib. Anthemideae |
| | Artemisia ruthiae (A.H.Holmgren & al.) Són.Garcia & al. trib. Anthemideae |
| | Artemisia saxicola Rydb. trib. Anthemideae |
| | Artemisia scopulorum A.Gray trib. Anthemideae |
| | Artemisia spinescens D.C.Eaton trib. Anthemideae |
| | Artemisia viscidula Rydb. trib. Anthemideae |
| | Asarum caudatum Lindl. |
| | Asarum hartwegii S.Watson |
| | Asarum lemmonii S.Watson |
| | Asarum marmoratum Piper |
| | Asclepias cryptoceras S.Watson trib. Asclepiadeae |
| | Asclepias davisii Woodson trib. Asclepiadeae |
| | Asclepias uncialis Greene trib. Asclepiadeae |
| | Askellia pygmaea (Ledeb.) Sennikov trib. Cichorieae |
| | Astragalus aboriginorum Richardson trib. Galegeae |
| | Astragalus accidens S.Watson |
| | Astragalus agrestis Douglas ex G.Don sect. Hypoglottidei |
| | Astragalus albifolius (M.E.Jones) Abrams trib. Galegeae |
| | Astragalus amphioxys A.Gray trib. Galegeae |
| | Astragalus ampullarius S.Watson trib. Galegeae |
| | Astragalus andersonii A.Gray trib. Galegeae |
| | Astragalus anserinus N.D.Atwood, Goodrich & S.L.Welsh trib. Galegeae |
| | Astragalus anxius Meinke & Kaye trib. Galegeae |
| | Astragalus aretioides (M.E.Jones) Barneby |
| | Astragalus argillosus M.E.Jones trib. Galegeae |
| | Astragalus argophyllus Nutt. |
| | Astragalus atratus S.Watson trib. Galegeae |
| | Astragalus atwoodii S.L.Welsh & Thorne trib. Galegeae |
| | Astragalus austiniae A.Gray trib. Galegeae |
| | Astragalus beatleyae Barneby |
| | Astragalus bigelovii A.Gray trib. Galegeae |
| | Astragalus blyae (Rose) Tidestr. trib. Galegeae |
| | Astragalus bodinii E.Sheld. trib. Galegeae |
| | Astragalus bolanderi A.Gray |
| | Astragalus brandegeei Porter & J.M.Coulter trib. Galegeae |
| | Astragalus callithrix Barneby |
| | Astragalus calycosus Torr. ex S.Watson |
| | Astragalus castaneiformis S.Watson trib. Galegeae |
| | Astragalus ceramicus E.Sheld. trib. Galegeae |
| | Astragalus chamaeleuce A.Gray |
| | Astragalus chloodes Barneby |
| | Astragalus chloridae (M.E.Jones) Tidestr. trib. Galegeae |
| | Astragalus chuskanus Barneby & Spellenb. |
| | Astragalus cibarius E.Sheld. |
| | Astragalus cimae M.E.Jones trib. Galegeae |
| | Astragalus cobrensis A.Gray trib. Galegeae |
| | Astragalus coccineus (Parry) Brandegee |
| | Astragalus consobrinus (Barneby) S.L.Welsh trib. Galegeae |
| | Astragalus cottamii S.L.Welsh trib. Galegeae |
| | Astragalus cremnophylax Barneby |
| | Astragalus cronquistii Barneby |
| | Astragalus curtilobus Tidestr. trib. Galegeae |
| | Astragalus cymboides M.E.Jones |
| | Astragalus desereticus Barneby trib. Galegeae |
| | Astragalus desperatus M.E.Jones trib. Galegeae |
| | Astragalus detritalis M.E.Jones |
| | Astragalus diphysus A.Gray trib. Galegeae |
| | Astragalus drummondii Douglas ex Hook. trib. Galegeae |
| | Astragalus eastwoodiae M.E.Jones trib. Galegeae |
| | Astragalus egglestonii (Rydb.) Kearney & Peebles trib. Galegeae |
| | Astragalus ensiformis M.E.Jones trib. Galegeae |
| | Astragalus ertterae Barneby & Shevock trib. Galegeae |
| | Astragalus eurekensis M.E.Jones trib. Galegeae |
| | Astragalus eurylobus (Barneby) Barneby trib. Galegeae |
| | Astragalus fallax S.Watson |
| | Astragalus filifolius A.Gray trib. Galegeae |
| | Astragalus flavus Nutt. |
| | Astragalus funereus M.E.Jones |
| | Astragalus garrettii J.F.Macbr. trib. Galegeae |
| | Astragalus gibbsii Kellogg |
| | Astragalus gilensis Greene |
| | Astragalus gilviflorus E.Sheld. trib. Galegeae |
| | Astragalus glareosus Douglas trib. Galegeae |
| | Astragalus hallii A.Gray |
| | Astragalus hamiltonii Ced.Porter trib. Galegeae |
| | Astragalus hendersonii S.Watson |
| | Astragalus henrimontanensis S.L.Welsh |
| | Astragalus holmgreniorum Barneby trib. Galegeae |
| | Astragalus hosackiae Greene trib. Galegeae |
| | Astragalus humistratus A.Gray trib. Galegeae |
| | Astragalus hypoxylus S.Watson trib. Galegeae |
| | Astragalus idriensis (M.E.Jones) Abrams trib. Galegeae |
| | Astragalus impensus (E.Sheld.) Wooton & Standl. trib. Galegeae |
| | Astragalus ineptus A.Gray trib. Galegeae |
| | Astragalus iodanthus S.Watson trib. Galegeae |
| | Astragalus jejunus S.Watson |
| | Astragalus jessiae M.Peck trib. Galegeae |
| | Astragalus johannis-howellii Barneby |
| | Astragalus kentrophyta A.Gray trib. Galegeae |
| | Astragalus kernensis Jeps. trib. Galegeae |
| | Astragalus laccoliticus (M.E.Jones) S.L.Welsh |
| | Astragalus lagopinus (Rydb.) M.Peck trib. Galegeae |
| | Astragalus latus (M.E.Jones) M.E.Jones trib. Galegeae |
| | Astragalus layneae Greene trib. Galegeae |
| | Astragalus lectulus S.Watson trib. Galegeae |
| | Astragalus lenophyllus (Rydb.) Tidestr. trib. Galegeae |
| | Astragalus lentiformis A.Gray trib. Galegeae |
| | Astragalus lentiginosus Douglas ex Hook. trib. Galegeae |
| | Astragalus leucolobus Parry ex M.E.Jones trib. Galegeae |
| | Astragalus limnocharis Barneby trib. Galegeae |
| | Astragalus loanus Barneby trib. Galegeae |
| | Astragalus lutosus M.E.Jones trib. Galegeae |
| | Astragalus malacus A.Gray |
| | Astragalus megacarpus (Nutt.) A.Gray |
| | Astragalus mensarus (M.E.Jones) Abrams trib. Galegeae |
| | Astragalus merrillii (Rydb.) Tidestr. trib. Galegeae |
| | Astragalus miguelensis Greene |
| | Astragalus minthorniae (Rydb.) Jeps. |
| | Astragalus missouriensis Nutt. trib. Galegeae |
| | Astragalus moencoppensis M.E.Jones |
| | Astragalus mogollonicus Greene trib. Galegeae |
| | Astragalus monoensis Barneby trib. Galegeae |
| | Astragalus montii S.L.Welsh trib. Galegeae |
| | Astragalus monumentalis Barneby trib. Galegeae |
| | Astragalus musimonum Barneby trib. Galegeae |
| | Astragalus musiniensis M.E.Jones |
| | Astragalus naturitensis Payson |
| | Astragalus nelsonianus Barneby |
| | Astragalus nevinii A.Gray ex Lyon |
| | Astragalus newberryi A.Gray trib. Galegeae |
| | Astragalus nutans M.E.Jones trib. Galegeae |
| | Astragalus nutriosensis S.C.Sand. trib. Galegeae |
| | Astragalus obscurus S.Watson trib. Galegeae |
| | Astragalus occidentalis (S.Watson) M.E.Jones trib. Galegeae |
| | Astragalus oophorus S.Watson trib. Galegeae |
| | Astragalus owyheensis A.Nelson & J.F.Macbr. trib. Galegeae |
| | Astragalus palans M.E.Jones trib. Galegeae |
| | Astragalus panamintensis E.Sheld. ex Coult. trib. Galegeae |
| | Astragalus panguicensis (M.E.Jones) M.E.Jones |
| | Astragalus perianus Barneby trib. Galegeae |
| | Astragalus pinonis M.E.Jones trib. Galegeae |
| | Astragalus piscator Barneby & S.L.Welsh trib. Galegeae |
| | Astragalus piutensis Barneby & Mabb. trib. Galegeae |
| | Astragalus platytropis A.Gray trib. Galegeae |
| | Astragalus preussii A.Gray |
| | Astragalus pseudiodanthus Barneby trib. Galegeae |
| | Astragalus pubentissimus Torr. & A.Gray |
| | Astragalus pulsiferae A.Gray |
| | Astragalus purshii Douglas ex G.Don trib. Galegeae |
| | Astragalus ravenii Barneby |
| | Astragalus recurvus Greene trib. Galegeae |
| | Astragalus rydbergii J.F.Macbr. trib. Galegeae |
| | Astragalus sabulosus M.E.Jones trib. Galegeae |
| | Astragalus salinus Howell trib. Galegeae |
| | Astragalus salmonis M.E.Jones |
| | Astragalus saurinus Barneby trib. Galegeae |
| | Astragalus scaposus A.Gray |
| | Astragalus sepultipes (Barneby) Barneby trib. Galegeae |
| | Astragalus serpens M.E.Jones trib. Galegeae |
| | Astragalus sesquiflorus S.Watson trib. Galegeae |
| | Astragalus shevockii Barneby |
| | Astragalus sierrae (M.E.Jones) Tidestr. trib. Galegeae |
| | Astragalus siskiyouensis (Rydb.) J.W.Thomps. trib. Galegeae |
| | Astragalus sonorae A.Gray trib. Galegeae |
| | Astragalus sophoroides M.E.Jones trib. Galegeae |
| | Astragalus spatulatus E.Sheld. |
| | Astragalus straturensis M.E.Jones trib. Galegeae |
| | Astragalus striatiflorus M.E.Jones trib. Galegeae |
| | Astragalus striatus Nutt. sect. Onobrychoidei |
| | Astragalus subcinereus A.Gray trib. Galegeae |
| | Astragalus subvestitus (Jeps.) Barneby |
| | Astragalus suksdorfii Howell trib. Galegeae |
| | Astragalus tegetarius S.Watson trib. Galegeae |
| | Astragalus tephrodes A.Gray trib. Galegeae |
| | Astragalus tetrapterus A.Gray |
| | Astragalus thompsoniae S.Watson trib. Galegeae |
| | Astragalus tidestromii (Rydb.) Clokey trib. Galegeae |
| | Astragalus tiehmii Barneby trib. Galegeae |
| | Astragalus traskiae Eastw. |
| | Astragalus tricarinatus A.Gray |
| | Astragalus troglodytus S.Watson trib. Galegeae |
| | Astragalus uncialis Barneby trib. Galegeae |
| | Astragalus utahensis (Torr.) Torr. & A.Gray |
| | Astragalus vehiculus (S.L.Welsh) S.L.Welsh trib. Galegeae |
| | Astragalus vespertinus E.Sheld. trib. Galegeae |
| | Astragalus webberi A.Gray trib. Galegeae |
| | Astragalus welshii Barneby |
| | Astragalus wetherillii M.E.Jones |
| | Astragalus whitneyi A.Gray trib. Galegeae |
| | Astragalus wilsonii Greene trib. Galegeae |
| | Astragalus wingatanus S.Watson |
| | Astragalus zionis M.E.Jones |
| | Atriplex confertifolia (Torr. & Frémont) S.Watson |
| | Atriplex corrugata S.Watson |
| | |
| | Balsamorhiza deltoidea Nutt. trib. Heliantheae |
| | Balsamorhiza hispidula W.M.Sharp trib. Heliantheae |
| | Balsamorhiza hookeri Nutt. trib. Heliantheae |
| | Balsamorhiza incana Nutt. trib. Heliantheae |
| | Balsamorhiza lanata (W.M.Sharp) W.A.Weber trib. Heliantheae |
| | Balsamorhiza macrolepis W.M.Sharp trib. Heliantheae |
| | Balsamorhiza sericea W.A.Weber trib. Heliantheae |
| | Balsamorhiza serrata A.Nelson & J.F.Macbr. trib. Heliantheae |
| | Berberis nervosa Pursh |
| | Berberis repens Lindl. |
| | Betula glandulosa Michx. |
| | Betula pumila L. |
| | Bistorta vivipara (L.) Delarbre |
| | Boechera bodiensis (Rollins) Al-Shehbaz |
| | Boechera breweri (S.Watson) Al-Shehbaz |
| | Boechera centrifendleri P.J.Alexander |
| | Boechera cobrensis (M.E.Jones) Dorn |
| | Boechera constancei (Rollins) Al-Shehbaz |
| | Boechera covillei (Greene) Windham & Al-Shehbaz |
| | Boechera cusickii (S.Watson) Al-Shehbaz |
| | Boechera davidsonii (Greene) N.H.Holmgren |
| | Boechera depauperata (A.Nelson) Windham & Al-Shehbaz |
| | Boechera dispar (M.E.Jones) Al-Shehbaz |
| | Boechera drepanoloba (Greene) Windham & Al-Shehbaz |
| | Boechera duchesnensis (Rollins) Windham & al. |
| | Boechera elkoensis Windham & Al-Shehbaz |
| | Boechera evadens Windham & Al-Shehbaz |
| | Boechera falcatoria (Rollins) Dorn |
| | Boechera fendleri (S.Watson) W.A.Weber |
| | Boechera fernaldiana (Rollins) W.A.Weber |
| | Boechera glaucovalvula (M.E.Jones) Al-Shehbaz |
| | Boechera gracilipes (Greene) Dorn |
| | Boechera harrisonii (S.L.Welsh) Windham & Al-Shehbaz |
| | Boechera howellii (S.Watson) Windham & Al-Shehbaz |
| | Boechera inyoensis (Rollins) Al-Shehbaz |
| | Boechera johnstonii (Munz) Al-Shehbaz |
| | Boechera kelseyana Windham & Allphin |
| | Boechera koehleri (Howell) Al-Shehbaz |
| | Boechera lasiocarpa (Rollins) Dorn |
| | Boechera lemmonii (S.Watson) W.A.Weber |
| | Boechera lincolnensis Windham & Al-Shehbaz |
| | Boechera lyallii (S.Watson) Dorn |
| | Boechera microphylla (Nutt. ex Torr. & A.Gray) Dorn |
| | Boechera nevadensis (Tidestr.) Windham & Al-Shehbaz |
| | Boechera ophira (Rollins) Al-Shehbaz |
| | Boechera parishii (S.Watson) Al-Shehbaz |
| | Boechera paupercula (Greene) Windham & Al-Shehbaz |
| | Boechera peirsonii Windham & Al-Shehbaz |
| | Boechera pendulina (Greene) W.A.Weber |
| | Boechera pendulocarpa (A.Nelson) Windham & Al-Shehbaz |
| | Boechera perennans (S.Watson) W.A.Weber |
| | Boechera pinzliae (Rollins) Al-Shehbaz |
| | Boechera platysperma (A.Gray) Al-Shehbaz |
| | Boechera pulchra (M.E.Jones ex S.Watson) W.A.Weber |
| | Boechera pygmaea (Rollins) Al-Shehbaz |
| | Boechera rigidissima (Rollins) Al-Shehbaz |
| | Boechera rollei (Rollins) Al-Shehbaz |
| | Boechera schistacea (Rollins) Dorn |
| | Boechera serpentinicola Windham & Al-Shehbaz |
| | Boechera shevockii Windham & Al-Shehbaz |
| | Boechera shockleyi (Munz) Dorn |
| | Boechera sparsiflora (Nutt.) Dorn |
| | Boechera subpinnatifida (S.Watson) Al-Shehbaz |
| | Boechera suffrutescens (S.Watson) Dorn |
| | Boechera thompsonii (S.L.Welsh) N.H.Holmgren |
| | Boechera tiehmii (Rollins) Al-Shehbaz |
| | Boechera ultraalsa Windham & Al-Shehbaz |
| | Boechera vivariensis (S.L.Welsh) W.A.Weber |
| | Boechera yorkii S.Boyd |
| | Bolandra californica A.Gray |
| | Boykinia major A.Gray |
| | Boykinia occidentalis Torr. & A.Gray |
| | Boykinia rotundifolia Parry ex A.Gray |
| | Brewerimitella breweri (A.Gray) R.A.Folk & Y.Okuyama |
| | Brewerimitella ovalis (Greene) R.A.Folk & Y.Okuyama |
| | Brickellia arguta B.L.Rob. trib. Eupatorieae |
| | Brickellia atractyloides A.Gray trib. Eupatorieae |
| | Brickellia greenei A.Gray trib. Eupatorieae |
| | Brickellia linifolia D.C.Eaton trib. Eupatorieae |
| | Brickellia microphylla (Nutt.) A.Gray trib. Eupatorieae |
| | Brickellia nevinii A.Gray trib. Eupatorieae |
| | Brickellia oblongifolia Nutt. trib. Eupatorieae |
| | Brickellia parvula A.Gray trib. Eupatorieae |
| | Buddleja utahensis Coville |
| | |
| | Cacaliopsis nardosmia (A.Gray) A.Gray trib. Senecioneae |
| | Caltha leptosepala DC. |
| | Calyptridium monospermum Greene |
| | Calyptridium umbellatum (Torr.) Greene |
| | Calystegia malacophylla (Greene) Munz |
| | Calystegia subacaulis Hook. & Arn. |
| | Camissoniopsis cheiranthifolia (Hornem.) W.L.Wagner & Hoch |
| | Campanula parryi A.Gray |
| | Campanula scabrella Engelm. |
| | Campanula scouleri Hook. ex A.DC. |
| | Campanula shetleri Heckard |
| | Cardamine bellidifolia L. |
| | Cardamine breweri S.Watson |
| | Cardamine nuttallii Greene |
| | Cardamine pachystigma (S.Watson) Rollins |
| | Cassiope mertensiana (Bong.) D.Don |
| | Castilleja aquariensis N.H.Holmgren |
| | Castilleja arachnoidea Greenm. |
| | Castilleja barnebyana Eastw. |
| | Castilleja breweri Fernald |
| | Castilleja cinerea A.Gray |
| | Castilleja clokeyi Pennell |
| | Castilleja flava S.Watson |
| | Castilleja flavescens Pennel ex Edwin |
| | Castilleja haydenii (A.Gray) Cockerell |
| | Castilleja integra A.Gray |
| | Castilleja inverta (A.Nelson & J.F.Macbr.) Pennell & Ownbey |
| | Castilleja lanata A.Gray |
| | Castilleja lemmonii A.Gray |
| | Castilleja martini Abrams |
| | Castilleja miniata Douglas ex Hook. |
| | Castilleja nana Eastw. |
| | Castilleja oblongifolia A.Gray |
| | Castilleja occidentalis Torr. |
| | Castilleja pallescens (A.Gray) Greenm. |
| | Castilleja parvula Rydb. |
| | Castilleja pilosa (S.Watson) Rydb. |
| | Castilleja pinetorum Fernald |
| | Castilleja pulchella Rydb. |
| | Castilleja revealii N.H.Holmgren |
| | Castilleja rhexiifolia Rydb. |
| | Castilleja scabrida Eastw. |
| | Castilleja schizotricha Greenm. |
| | Castilleja viscida Rydb. |
| | Castilleja viscidula A.Gray |
| | Ceanothus arcuatus McMinn |
| | Ceanothus confusus J.T.Howell |
| | Ceanothus cordulatus Kellogg |
| | Ceanothus diversifolius Kellogg |
| | Ceanothus fendleri A.Gray |
| | Ceanothus foliosus Parry |
| | Ceanothus fresnensis Dudley ex Abrams |
| | Ceanothus gloriosus J.T.Howell |
| | Ceanothus hearstiorum Hoover & Roof |
| | Ceanothus integerrimus Hook. & Arn. |
| | Ceanothus jepsonii Greene |
| | Ceanothus lemmonii Parry |
| | Ceanothus martini M.E.Jones |
| | Ceanothus parvifolius (S.Watson) Trel. |
| | Ceanothus prostratus Benth. |
| | Ceanothus pumilus Greene |
| | Ceanothus roderickii W.Knight |
| | Cerastium beeringianum Cham. & Schltdl. |
| | Chaenactis alpigena Sharsm. trib. Helenieae |
| | Chaenactis alpina (A.Gray) M.E.Jones |
| | Chaenactis douglasii Hook. & Arn. trib. Helenieae |
| | Chaenactis nevadensis (Kellogg) A.Gray trib. Helenieae |
| | Chaenactis parishii A.Gray trib. Helenieae |
| | Chaenactis santolinoides Greene trib. Helenieae |
| | Chaenactis suffrutescens A.Gray trib. Helenieae |
| | Chaetopappa ericoides (Torr.) G.L.Nesom trib. Astereae |
| | Chamaechaenactis scaposa Rydb. trib. Helenieae |
| | Chamaerhodos erecta (L.) Bunge |
| | Cherleria biflora (L.) A.J.Moore & Dillenb. |
| | Cherleria obtusiloba (Rydb.) A.J.Moore & Dillenb. |
| | Chimaphila maculata (L.) Pursh |
| | Chimaphila menziesii (R.Br. ex D.Don) Spreng. |
| | Chimaphila umbellata (L.) W.P.C.Barton |
| | Chrysothamnus axillaris D.D.Keck trib. Astereae |
| | Chrysothamnus depressus (Nutt.) L.C.Anderson trib. Astereae |
| | Chrysothamnus eremobius L.C.Anderson trib. Astereae |
| | Chrysothamnus humilis Greene trib. Astereae |
| | Chrysothamnus lanceolatus Nutt. trib. Astereae |
| | Chrysothamnus molestus (S.F.Blake) L.C.Anderson trib. Astereae |
| | Chrysothamnus vaseyi Greene trib. Astereae |
| | Chrysothamnus viscidiflorus Nutt. trib. Astereae |
| | Cirsium congdonii R.J.Moore & Frankton trib. Cardueae |
| | Cirsium quercetorum (A.Gray) Jeps. trib. Cardueae |
| | Cirsium tioganum (Congdon) Petr. trib. Cardueae |
| | Claytonia cordifolia S.Watson |
| | Claytonia lanceolata Pursh |
| | Claytonia megarhiza (A.Gray) Parry ex S.Watson |
| | Claytonia nevadensis S.Watson |
| | Claytonia obovata Rydb. |
| | Claytonia rosea Rydb. |
| | Claytonia sibirica L. |
| | Claytonia umbellata S.Watson |
| | Clematis bigelovii Torr. |
| | Clematis columbiana (Nutt.) Torr. & A.Gray |
| | Clematis grosseserrata (Rydb.) Ackerf. |
| | Clematis hirsutissima Pursh |
| | Clematis tenuiloba (A.Gray) C.L.Hitchc. |
| | Clinopodium chandleri (Brandegee) P.D.Cantino & Wagstaff |
| | Clinopodium mimuloides (Benth.) Kuntze |
| | Cochlearia groenlandica L. |
| | Collomia debilis (S.Watson) Greene |
| | Collomia larsenii (A.Gray) Payson |
| | Collomia rawsoniana Greene |
| | Coptis laciniata A.Gray |
| | Corethrogyne filaginifolia (Hook. & Arn.) Nutt. trib. Astereae |
| | Cornus unalaschkensis Ledeb. |
| | Crepis bakeri Greene trib. Cichorieae |
| | Crepis modocensis Greene trib. Cichorieae |
| | Crepis monticola Coville trib. Cichorieae |
| | Crepis occidentalis Nutt. trib. Cichorieae |
| | Crepis pumila Rydb. trib. Cichorieae |
| | Crocanthemum greenei (B.L.Rob.) Sorrie |
| | Crocanthemum scoparium (Nutt.) Millsp. |
| | Crocanthemum suffrutescens (B.Schreib.) Sorrie |
| | Cryptantha abata I.M.Johnst. |
| | Cuniculotinus gramineus (H.M.Hall) Urbatsch. & al. trib. Astereae |
| | Cusickiella douglasii (A.Gray) Rollins |
| | Cusickiella quadricostata (Rollins) Rollins |
| | Cycladenia humilis Benth. |
| | Cymopterus aboriginum M.E.Jones |
| | Cymopterus albiflorus Torr. & A.Gray |
| | Cymopterus alpinus A.Gray |
| | Cymopterus bakeri (J.M.Coult. & Rose) M.E.Jones |
| | Cymopterus basalticus M.E.Jones |
| | Cymopterus cinerarius A.Gray |
| | Cymopterus coulteri (M.E.Jones) Mathias |
| | Cymopterus davidsonii (J.M.Coult. & Rose) R.L.Hartm. |
| | Cymopterus deserticola Brandegee |
| | Cymopterus duchesnensis M.E.Jones |
| | Cymopterus evertii L.R.Hartm. & R.S.Kirkp. |
| | Cymopterus fendleri A.Gray |
| | Cymopterus foeniculaceus Torr. & A.Gray |
| | Cymopterus gilmanii C.V.Morton |
| | Cymopterus globosus (S.Watson) S.Watson |
| | Cymopterus glomeratus (Nutt.) DC. |
| | Cymopterus hendersonii (J.M.Coult. & Rose) Cronquist |
| | Cymopterus higginsii S.L.Welsh |
| | Cymopterus ibapensis M.E.Jones |
| | Cymopterus jonesii J.M.Coult. & Rose |
| | Cymopterus lapidosus (M.E.Jones) M.E.Jones |
| | Cymopterus lemmonii (J.M.Coult. & Rose) Dorn |
| | Cymopterus longipes S.Watson |
| | Cymopterus macdougalii (J.M.Coult. & Rose) Tidestr. |
| | Cymopterus megacephalus M.E.Jones |
| | Cymopterus minimus (Mathias) Mathias |
| | Cymopterus newberryi (S.Watson) M.E.Jones |
| | Cymopterus nivalis S.Watson |
| | Cymopterus panamintensis J.M.Coult. & Rose |
| | Cymopterus petraeus M.E.Jones |
| | Cymopterus purpureus S.Watson |
| | Cymopterus ripleyi Barneby |
| | Cymopterus rosei (M.E.Jones ex J.M.Coult. & Rose) M.E.Jones |
| | Cymopterus sessiliflorus (W.L.Theob. & C.C.Tseng) R.L.Hartm. |
| | |
| | Dalea aurea Nutt. ex Pursh trib. Amorpheae |
| | Dalea candida Willd. trib. Amorpheae |
| | Dalea flavescens (S.Watson) S.L.Welsh trib. Amorpheae |
| | Dalea formosa Torr. trib. Amorpheae |
| | Dalea jamesii (Torr.) Torr. & A.Gray trib. Amorpheae |
| | Dalea lachnostachys A.Gray trib. Amorpheae |
| | Dalea lumholtzii C.B.Rob. & Fernald trib. Amorpheae |
| | Dalea mollis Benth. trib. Amorpheae |
| | Dalea mollissima (Rydb.) Munz trib. Amorpheae |
| | Dalea nana Torr. ex A.Gray trib. Amorpheae |
| | Dalea neomexicana (A.Gray) Cory trib. Amorpheae |
| | Dalea oligophylla (Torr.) Shinners trib. Amorpheae |
| | Dalea ornata (Douglas ex Hook.) Eaton & Wright trib. Amorpheae |
| | Dalea pogonathera A.Gray trib. Amorpheae |
| | Dalea purpurea Vent. trib. Amorpheae |
| | Dalea rubescens S.Watson trib. Amorpheae |
| | Dalea wrightii A.Gray trib. Amorpheae |
| | Dasiphora fruticosa (L.) Rydb. |
| | Delphinium andersonii A.Gray |
| | Delphinium antoninum Eastw. |
| | Delphinium apiculatum Greene |
| | Delphinium decorum Fisch. & C.A.Mey. |
| | Delphinium depauperatum Nutt. |
| | Delphinium gracilentum Greene |
| | Delphinium kinkiense Munz |
| | Delphinium luteum A.Heller |
| | Delphinium nudicaule Torr. & A.Gray |
| | Delphinium nuttallianum Pritz. ex Walp. |
| | Delphinium patens Benth. |
| | Delphinium scaposum Greene |
| | Delphinium variegatum Torr. & A.Gray |
| | Delwiensia pattersonii (A.Gray) W.A.Weber & R.C.Wittmann trib. Anthemideae |
| | Dicentra formosa (Andrews) Walp. |
| | Dicentra nevadensis Eastw. |
| | Dicentra oregona Eastw. |
| | Dicentra pauciflora S.Watson |
| | Dicentra uniflora Kellogg |
| | Diplacus aridus Abrams |
| | Diplacus aurantiacus (Curtis) Jeps. |
| | Diplacus clevelandii (Brandegee) Greene |
| | Diplacus grandiflorus (Lindl.) Groenl. |
| | Diplacus linearis (Benth.) Greene |
| | Diplacus longiflorus Nutt. |
| | Diplacus parviflorus Greene |
| | Diplacus rupicola (Coville & A.L.Grant) G.L.Nesom & Fraga |
| | Diplacus rutilus (A.L.Grant) McMinn |
| | Draba abajoensis Windham & Al-Shehbaz |
| | Draba albertina Greene |
| | Draba arida C.L.Hitchc. |
| | Draba asprella Greene sect. Chrysodraba |
| | Draba asterophora Payson sect. Chrysodraba |
| | Draba aurea Vahl ex Hornem. sect. Phyllodraba |
| | Draba aureola S.Watson sect. Phyllodraba |
| | Draba breweri S.Watson sect. Leucodraba |
| | Draba burkei (C.L.Hitchc.) Windham & Beilstein |
| | Draba californica (Jeps.) Rollins & R.A.Price |
| | Draba cana Rydb. |
| | Draba carnosula O.E.Schulz |
| | Draba corrugata S.Watson sect. Phyllodraba |
| | Draba crassa Rydb. sect. Phyllodraba |
| | Draba crassifolia Graham |
| | Draba cruciata Payson sect. Chrysodraba |
| | Draba densifolia Nutt. sect. Chrysodraba |
| | Draba fladnizensis Wulfen sect. Leucodraba |
| | Draba globosa Payson |
| | Draba howellii S.Watson sect. Chrysodraba |
| | Draba incerta Payson |
| | Draba incrassata (Rollins) Rollins & R.A.Price |
| | Draba inexpectata S.L.Welsh |
| | Draba jaegeri Munz & I.M.Johnst. |
| | Draba kassii S.L.Welsh |
| | Draba lemmonii S.Watson sect. Chrysodraba |
| | Draba lonchocarpa Rydb. sect. Leucodraba |
| | Draba longisquamosa O.E.Schulz |
| | Draba maguirei C.L.Hitchc. |
| | Draba monoensis Rollins & R.A.Price |
| | Draba novolympica Payson & H.St.John |
| | Draba oligosperma Hook. sect. Chrysodraba |
| | Draba paucifructa Clokey & C.L.Hitchc. |
| | Draba pectinipila Rollins |
| | Draba pedicellata (Rollins & R.A.Price) Windham |
| | Draba pennellii Rollins |
| | Draba petrophila Greene |
| | Draba pterosperma Payson sect. Chrysodraba |
| | Draba ramosissima Desv. |
| | Draba ramulosa Rollins |
| | Draba saxosa Davidson |
| | Draba serpentina (Tiehm & P.K.Holmgren) Al-Shehbaz |
| | Draba sharsmithii Rollins & R.A.Price |
| | Draba sierrae Sharsm. |
| | Draba sobolifera Rydb. sect. Chrysodraba |
| | Draba sphaeroides Payson |
| | Draba standleyi J.F.Macbr. & Payson |
| | Draba subalpina Goodman & C.L.Hitchc. |
| | Draba subumbellata Rollins & R.A.Price |
| | Draba ventosa A.Gray sect. Chrysodraba |
| | Draba viridis A.Heller |
| | Draba zionensis C.L.Hitchc. |
| | Draperia systyla (A.Gray) Torr. |
| | Dryas hookeriana Juz. |
| | Drymocallis arguta (Pursh) Rydb. |
| | Drymocallis ewanii (D.D.Keck) P.M.Sl. |
| | Drymocallis fissa (Nutt.) Rydb. |
| | Drymocallis pseudorupestris (Rydb.) Rydb. |
| | Drymocallis rhomboidea (Rydb.) Rydb. |
| | Dudleya abramsii Rose |
| | Dudleya affinis (K.M.Nakai) P.H.Thomson |
| | Dudleya agourensis (K.M.Nakai) P.H.Thomson |
| | Dudleya aloides Rose |
| | Dudleya arizonica Rose |
| | Dudleya attenuata (S.Watson) Moran |
| | Dudleya bettinae Hoover |
| | Dudleya blochmaniae (Eastw.) Moran |
| | Dudleya brevifolia (Moran) Moran |
| | Dudleya calcicola Bartel & Shevock |
| | Dudleya candelabrum Rose |
| | Dudleya cespitosa (Haw.) Britton & Rose |
| | Dudleya collomiae Rose |
| | Dudleya costafolia (Bartel & Shevock) P.H.Thomson |
| | Dudleya crebrifolia (K.M.Nakai & Verity) P.H.Thomson |
| | Dudleya cymosa (Lem.) Britton & Rose |
| | Dudleya densiflora (Rose) Moran |
| | Dudleya edulis (Nutt.) Moran |
| | Dudleya farinosa (Lindl.) Britton & Rose |
| | Dudleya gigantea Rose |
| | Dudleya gnoma S.McCabe |
| | Dudleya greenei Rose |
| | Dudleya hassei (Rose) Moran |
| | Dudleya lanceolata (Nutt.) Britton & Rose |
| | Dudleya multicaulis (Rose) Moran |
| | Dudleya murina Eastw. |
| | Dudleya nesiotica (Moran) Moran |
| | Dudleya ovatifolia Britton |
| | Dudleya palmeri (S.Watson) Britton & Rose |
| | Dudleya parva Rose & Davidson |
| | Dudleya pulverulenta (Nutt.) Britton & Rose |
| | Dudleya pumila Rose |
| | Dudleya saxosa (M.E.Jones) Britton & Rose |
| | Dudleya setchellii (Jeps.) Britton & Rose |
| | Dudleya stolonifera Moran |
| | Dudleya traskiae (Rose) Moran |
| | Dudleya variegata (S.Watson) Moran |
| | Dudleya verityi K.M.Nakai |
| | Dudleya virens (Rose) Moran |
| | Dudleya viscida (S.Watson) Moran |
| | |
| | Eastwoodiella californica (Kellogg) Morin |
| | Ehrendorferia chrysantha (Hook. & Arn.) Rylander |
| | Ehrendorferia ochroleuca (Engelm.) Fukuhara |
| | Empetrum nigrum L. |
| | Encelia nutans Eastw. trib. Heliantheae |
| | Enceliopsis argophylla A.Nelson trib. Heliantheae |
| | Enceliopsis nudicaulis A.Nelson trib. Heliantheae |
| | Enemion occidentale (Hook. & Arn.) J.R.Drumm. & Hutch. |
| | Enemion stipitatum (A.Gray) J.R.Drumm. & Hutch. |
| | Epilobium anagallidifolium Lam. |
| | Epilobium arizonicum (Davidson) P.M.Sl. |
| | Epilobium canum (Greene) P.H.Raven |
| | Epilobium clavatum Trel. |
| | Epilobium fastigiatum (Nutt.) Piper |
| | Epilobium garrettii (A.Nelson) P.M.Sl. |
| | Epilobium glaberrimum Barbey |
| | Epilobium hallianum Hausskn. |
| | Epilobium howellii Hoch |
| | Epilobium lactiflorum Hausskn. |
| | Epilobium latifolium L. |
| | Epilobium luteum Pursh |
| | Epilobium nevadense Munz |
| | Epilobium nivium Brandegee |
| | Epilobium obcordatum A.Gray |
| | Epilobium oregonense Hausskn. |
| | Epilobium rigidum Hausskn. |
| | Epilobium saximontanum Hausskn. |
| | Epilobium septentrionale (D.D.Keck) R.N.Bowman & Hoch |
| | Epilobium siskiyouense (Munz) Hoch & P.H.Raven |
| | Epilobium smithii H.Lév. |
| | Epilobium suffruticosum Nutt. |
| | Eremogone aberrans (M.E.Jones) Ikonn. |
| | Eremogone aculeata (S.Watson) Ikonn. |
| | Eremogone americana (Maguire) Ikonn. |
| | Eremogone charlestonensis (Maguire) P.M.Sl. |
| | Eremogone cliftonii Rabeler & R.L.Hartm. |
| | Eremogone congesta (Nutt.) Ikonn. |
| | Eremogone crassula (Maguire) P.M.Sl. |
| | Eremogone eastwoodiae (Rydb.) Ikonn. |
| | Eremogone fendleri (A.Gray) Ikonn. |
| | Eremogone ferrisiae (Abrams) R.L.Hartm. & Rabeler |
| | Eremogone franklinii (Douglas ex Hook.) R.L.Hartm. & Rabeler |
| | Eremogone hookeri (Nutt.) W.A.Weber |
| | Eremogone kingii (S.Watson) Ikonn. |
| | Eremogone lithophila (Rydb.) P.M.Sl. |
| | Eremogone macradenia (S.Watson) Ikonn. |
| | Eremogone prolifera (Maguire) P.M.Sl. |
| | Eremogone simulans (Maguire) P.M.Sl. |
| | Eremogone stenomeres (Eastw.) Ikonn. |
| | Eremogone subcongesta (S.Watson) P.M.Sl. |
| | Eremogone suffrutescens (A.Gray) P.M.Sl. |
| | Eremogone uintahensis (A.Nelson) P.M.Sl. |
| | Eremogone ursina (B.L.Rob.) Ikonn. |
| | Eriastrum densifolium (Benth.) H.Mason |
| | Ericameria bloomeri (A.Gray) J.F.Macbr. trib. Astereae |
| | Ericameria compacta (H.M.Hall) G.L.Nesom trib. Astereae |
| | Ericameria cooperi (A.Gray) H.M.Hall trib. Astereae |
| | Ericameria crispa (L.C.Anderson) G.L.Nesom trib. Astereae |
| | Ericameria cuneata (A.Gray) McClatchie trib. Astereae |
| | Ericameria discoidea (Nutt.) G.L.Nesom trib. Astereae |
| | Ericameria gilmanii (S.F.Blake) G.L.Nesom trib. Astereae |
| | Ericameria greenei (A.Gray) G.L.Nesom trib. Astereae |
| | Ericameria laricifolia (A.Gray) Shinners trib. Astereae |
| | Ericameria lignumviridis (S.L.Welsh) G.L.Nesom trib. Astereae |
| | Ericameria monocephala (A.Nelson & P.B.Kenn.) D.W.Taylor trib. Astereae |
| | Ericameria nana Nutt. trib. Astereae |
| | Ericameria nauseosa var. iridis (L.C.Anderson) G.L.Nesom trib. Astereae |
| | Ericameria obovata (Rydb.) G.L.Nesom trib. Astereae |
| | Ericameria ophitidis (J.T.Howell) G.L.Nesom trib. Astereae |
| | Ericameria parryi var. imula (H.M.Hall & Clements) G.L.Nesom trib. Astereae |
| | Ericameria suffruticosa (Nutt.) G.L.Nesom trib. Astereae |
| | Ericameria vulcanica (Greene) P.M.Sl. trib. Astereae |
| | Ericameria watsonii (A.Gray) G.L.Nesom trib. Astereae |
| | Ericameria zionis (L.C.Anderson) G.L.Nesom trib. Astereae |
| | Erigeron abajoensis Cronquist trib. Astereae |
| | Erigeron aequifolius H.M.Hall trib. Astereae |
| | Erigeron algidus Jeps. trib. Astereae |
| | Erigeron aliceae Howell trib. Astereae |
| | Erigeron anchana G.L.Nesom trib. Astereae |
| | Erigeron angustatus (A.Gray) Greene trib. Astereae |
| | Erigeron aphanactis Greene trib. Astereae |
| | Erigeron arenarioides (Eaton ex A.Gray) Rydb. trib. Astereae |
| | Erigeron argentatus A.Gray trib. Astereae |
| | Erigeron asperugineus A.Gray trib. Astereae |
| | Erigeron austiniae Greene trib. Astereae |
| | Erigeron barbellulatus Greene trib. Astereae |
| | Erigeron blochmaniae Greene trib. Astereae |
| | Erigeron bloomeri A.Gray trib. Astereae |
| | Erigeron breweri A.Gray trib. Astereae |
| | Erigeron caespitosus Nutt. trib. Astereae |
| | Erigeron canaani S.L.Welsh trib. Astereae |
| | Erigeron canus A.Gray trib. Astereae |
| | Erigeron cavernensis S.L.Welsh & N.D.Atwood trib. Astereae |
| | Erigeron cervinus Greene trib. Astereae |
| | Erigeron clokeyi Cronquist trib. Astereae |
| | Erigeron compactus S.F.Blake trib. Astereae |
| | Erigeron compositus Pursh trib. Astereae |
| | Erigeron concinnus (Hook. & Arn.) Torr. & A.Gray trib. Astereae |
| | Erigeron condensatus (D.C.Eaton) Greene trib. Astereae |
| | Erigeron confinis Howell trib. Astereae |
| | Erigeron congestus Greene trib. Astereae |
| | Erigeron consimilis Cronquist trib. Astereae |
| | Erigeron corymbosus Nutt. trib. Astereae |
| | Erigeron coulteri Porter & J.M.Coult. trib. Astereae |
| | Erigeron covillei Greene trib. Astereae |
| | Erigeron cronquistii Maguire trib. Astereae |
| | Erigeron eatonii A.Gray trib. Astereae |
| | Erigeron elegantulus Greene trib. Astereae |
| | Erigeron elmeri Greene trib. Astereae |
| | Erigeron engelmannii A.Nelson trib. Astereae |
| | Erigeron filifolius (Hook.) Nutt. trib. Astereae |
| | Erigeron flagellaris A.Gray trib. Astereae |
| | Erigeron foliosus Nutt. trib. Astereae |
| | Erigeron formosissimus Greene trib. Astereae |
| | Erigeron garrettii A.Nelson trib. Astereae |
| | Erigeron glabellus Nutt. trib. Astereae |
| | Erigeron glacialis (Nutt.) A.Nelson trib. Astereae |
| | Erigeron glaucus Ker Gawl. trib. Astereae |
| | Erigeron goodrichii S.L.Welsh trib. Astereae |
| | Erigeron grandiflorus Hook. trib. Astereae |
| | Erigeron hartwegii Greene trib. Astereae |
| | Erigeron heliographis G.L.Nesom trib. Astereae |
| | Erigeron humilis Graham trib. Astereae |
| | Erigeron jacinteus H.M.Hall trib. Astereae |
| | Erigeron jonesii Cronquist trib. Astereae |
| | Erigeron kachinensis S.L.Welsh & Gl.Moore trib. Astereae |
| | Erigeron klamathensis (G.L.Nesom) G.L.Nesom trib. Astereae |
| | Erigeron kuschei Eastw. trib. Astereae |
| | Erigeron lassenianus Greene trib. Astereae |
| | Erigeron latus (A.Nelson & J.F.Macbr.) Cronquist trib. Astereae |
| | Erigeron leiomerus A.Gray trib. Astereae |
| | Erigeron lemmonii A.Gray trib. Astereae |
| | Erigeron linearis (Hook.) Piper trib. Astereae |
| | Erigeron maguirei Cronquist trib. Astereae |
| | Erigeron mancus Rydb. trib. Astereae |
| | Erigeron maniopotamicus G.L.Nesom & T.W.Nelson trib. Astereae |
| | Erigeron mariposanus Congdon trib. Astereae |
| | Erigeron melanocephalus A.Nelson trib. Astereae |
| | Erigeron miser A.Gray trib. Astereae |
| | Erigeron multiceps Greene trib. Astereae |
| | Erigeron nanus Nutt. trib. Astereae |
| | Erigeron nauseosus (M.E.Jones) A.Nelson trib. Astereae |
| | Erigeron nematophyllus Rydb. trib. Astereae |
| | Erigeron nevadincola S.F.Blake trib. Astereae |
| | Erigeron nivalis Nutt. trib. Astereae |
| | Erigeron nudatus A.Gray trib. Astereae |
| | Erigeron ovinus Cronquist trib. Astereae |
| | Erigeron oxyphyllus Greene trib. Astereae |
| | Erigeron parishii A.Gray trib. Astereae |
| | Erigeron petrophilus Greene trib. Astereae |
| | Erigeron plantagineus Greene trib. Astereae |
| | Erigeron porphyreticus M.E.Jones trib. Astereae |
| | Erigeron pringlei A.Gray trib. Astereae |
| | Erigeron pulcherrimus A.Heller trib. Astereae |
| | Erigeron pumilus Nutt. trib. Astereae |
| | Erigeron pygmaeus Greene trib. Astereae |
| | Erigeron radicatus Hook. trib. Astereae |
| | Erigeron reductus (Cronquist) G.L.Nesom trib. Astereae |
| | Erigeron sanctarum S.Watson trib. Astereae |
| | Erigeron saxatilis G.L.Nesom trib. Astereae |
| | Erigeron scopulinus G.L.Nesom & V.D.Roth trib. Astereae |
| | Erigeron setchellii Jeps. trib. Astereae |
| | Erigeron sionis Cronquist trib. Astereae |
| | Erigeron sivinskii G.L.Nesom trib. Astereae |
| | Erigeron sonnei Greene trib. Astereae |
| | Erigeron supplex A.Gray trib. Astereae |
| | Erigeron tener (A.Gray) A.Gray trib. Astereae |
| | Erigeron uncialis S.F.Blake trib. Astereae |
| | Erigeron untermannii S.L.Welsh & Goodrich trib. Astereae |
| | Erigeron ursinus D.C.Eaton trib. Astereae |
| | Erigeron utahensis A.Gray trib. Astereae |
| | Erigeron vagus Payson trib. Astereae |
| | Erigeron viscidus Rydb. trib. Astereae |
| | Erigeron watsonii (A.Gray) Cronquist trib. Astereae |
| | Eriogonum acaule Nutt. sect. Eucycla |
| | Eriogonum alpinum Engelm. sect. Oligogonum |
| | Eriogonum ammophilum Reveal |
| | Eriogonum anemophilum Greene sect. Eucycla |
| | Eriogonum anserinum Greene sect. Eucycla |
| | Eriogonum apachense Reveal sect. Eucycla |
| | Eriogonum apricum J.T.Howell sect. Eucycla |
| | Eriogonum arborescens Greene sect. Eucycla |
| | Eriogonum arcuatum Greene sect. Oligogonum |
| | Eriogonum aretioides Barneby sect. Eucycla |
| | Eriogonum argophyllum Reveal sect. Eucycla |
| | Eriogonum aureum M.E.Jones sect. Oligogonum |
| | Eriogonum bannockense (S.Stokes) R.J.Davis sect. Eucycla |
| | Eriogonum batemanii M.E.Jones sect. Eucycla |
| | Eriogonum beatleyae Reveal sect. Eucycla |
| | Eriogonum bicolor M.E.Jones sect. Eucycla |
| | Eriogonum breedlovei (J.T.Howell) Reveal sect. Eucycla |
| | Eriogonum brevicaule Nutt. sect. Eucycla |
| | Eriogonum butterworthianum J.T.Howell sect. Eucycla |
| | Eriogonum caespitosum Nutt. sect. Oligogonum |
| | Eriogonum calcareum (S.Stokes) Grady & Reveal sect. Eucycla |
| | Eriogonum chrysocephalum A.Gray sect. Eucycla |
| | Eriogonum clavellatum Small sect. Eucycla |
| | Eriogonum cognatum Greene sect. Oligogonum |
| | Eriogonum compositum Douglas ex Benth. sect. Oligogonum |
| | Eriogonum congdonii (S.Stokes) Reveal sect. Oligogonum |
| | Eriogonum contortum Small sect. Eucycla |
| | Eriogonum corymbosum Benth. sect. Eucycla |
| | Eriogonum coryphaeum (Torr. & A.Gray) G.N.Jones sect. Oligogonum |
| | Eriogonum covillei Small sect. Oligogonum |
| | Eriogonum crocatum Davidson sect. Eucycla |
| | Eriogonum cronquistii Reveal sect. Eucycla |
| | Eriogonum crosbyae Reveal sect. Eucycla |
| | Eriogonum cupulatum S.Stokes sect. Oligogonum |
| | Eriogonum depressum (Blank.) Rydb. sect. Eucycla |
| | Eriogonum desertorum (Maguire) R.J.Davis sect. Eucycla |
| | Eriogonum diatomaceum Reveal, J.Reynolds & Picciani sect. Eucycla |
| | Eriogonum diclinum Reveal sect. Oligogonum |
| | Eriogonum douglasii Benth. sect. Oligogonum |
| | Eriogonum dumosum Greene sect. Oligogonum |
| | Eriogonum elatum Douglas ex Benth. sect. Eucycla |
| | Eriogonum ephedroides Reveal sect. Eucycla |
| | Eriogonum eremicum Reveal sect. Eucycla |
| | Eriogonum ericifolium A.Gray sect. Eucycla |
| | Eriogonum evanidum Reveal |
| | Eriogonum eximium Tidestr. sect. Eucycla |
| | Eriogonum fasciculatum Benth. sect. Eucycla |
| | Eriogonum gilmanii S.Stokes sect. Eucycla |
| | Eriogonum glaberrimum Gand. sect. Oligogonum |
| | Eriogonum gracilipes S.Watson sect. Eucycla |
| | Eriogonum greenei A.Gray sect. Eucycla |
| | Eriogonum halimoides Gand. sect. Oligogonum |
| | Eriogonum heermannii Durand & Hilg. sect. Eucycla |
| | Eriogonum heracleoides Nutt. sect. Oligogonum |
| | Eriogonum hirtellum J.T.Howell & Bacigal. sect. Oligogonum |
| | Eriogonum holmgrenii Reveal sect. Eucycla |
| | Eriogonum hylophilum Reveal & Brotherson sect. Eucycla |
| | Eriogonum incanum Torr. & A.Gray sect. Oligogonum |
| | Eriogonum jamesii Benth. sect. Oligogonum |
| | Eriogonum jonesi S.Watson sect. Eucycla |
| | Eriogonum kelloggii A.Gray sect. Oligogonum |
| | Eriogonum kennedyi Porter ex S.Watson sect. Eucycla |
| | Eriogonum kingii Torr. & A.Gray sect. Eucycla |
| | Eriogonum latens Jeps. sect. Oligogonum |
| | Eriogonum latifolium Sm. sect. Eucycla |
| | Eriogonum laxiflorum (Hook.) Nutt. ex Benth. |
| | Eriogonum leptophyllum (Torr.) Wooton & Standl. sect. Eucycla |
| | Eriogonum libertini Reveal sect. Oligogonum |
| | Eriogonum lobbii Torr. & A.Gray sect. Oligogonum |
| | Eriogonum loganum A.Nelson sect. Eucycla |
| | Eriogonum mancum Rydb. sect. Eucycla |
| | Eriogonum marifolium A.Gray sect. Oligogonum |
| | Eriogonum mensicola S.Stokes sect. Eucycla |
| | Eriogonum microtheca Nutt. sect. Eucycla |
| | Eriogonum minus (I.M.Johnst.) Ewan sect. Oligogonum |
| | Eriogonum mitophyllum Reveal sect. Eucycla |
| | Eriogonum modocense Greene sect. Oligogonum |
| | Eriogonum nanum Reveal sect. Eucycla |
| | Eriogonum natum Reveal sect. Eucycla |
| | Eriogonum nervulosum (S.Stokes) Reveal sect. Oligogonum |
| | Eriogonum nivale Canby ex Coville sect. Eucycla |
| | Eriogonum nodosum Small sect. Eucycla |
| | Eriogonum nudum var. paralinum Reveal sect. Eucycla |
| | Eriogonum ochrocephalum S.Watson sect. Eucycla |
| | Eriogonum ostlundii M.E.Jones |
| | Eriogonum ovalifolium Nutt. sect. Eucycla |
| | Eriogonum panamintense C.V.Morton sect. Eucycla |
| | Eriogonum panguicense (M.E.Jones) Reveal sect. Eucycla |
| | Eriogonum pendulum S.Watson sect. Eucycla |
| | Eriogonum phoeniceum L.M.Shultz sect. Eucycla |
| | Eriogonum polifolium Benth. sect. Eucycla |
| | Eriogonum polyanthum Benth. sect. Oligogonum |
| | Eriogonum polypodum Small sect. Oligogonum |
| | Eriogonum porteri Small sect. Oligogonum |
| | Eriogonum prattenianum Durand sect. Oligogonum |
| | Eriogonum prociduum Reveal sect. Eucycla |
| | Eriogonum proliferum Torr. & A.Gray sect. Eucycla |
| | Eriogonum pulchrum Eastw. sect. Eucycla |
| | Eriogonum purpureum (Nutt.) Nutt. ex Benth. sect. Eucycla |
| | Eriogonum purpusii Brandegee sect. Eucycla |
| | Eriogonum pyrolifolium Hook. sect. Oligogonum |
| | Eriogonum racemosum Nutt. sect. Eucycla |
| | Eriogonum revelianum S.L.Welsh |
| | Eriogonum ripleyi J.T.Howell sect. Eucycla |
| | Eriogonum robustum Greene sect. Oligogonum |
| | Eriogonum rosense A.Nelson & P.B.Kenn. sect. Eucycla |
| | Eriogonum sarahiae N.D.Atwood & A.Clifford sect. Eucycla |
| | Eriogonum saxatile S.Watson sect. Eucycla |
| | Eriogonum scapigerum Eastw. sect. Eucycla |
| | Eriogonum shockleyi S.Watson sect. Eucycla |
| | Eriogonum simpsonii Benth. |
| | Eriogonum siskiyouense Small sect. Oligogonum |
| | Eriogonum smallianum A.Heller sect. Oligogonum |
| | Eriogonum soredium Reveal sect. Eucycla |
| | Eriogonum spathulatum A.Gray sect. Eucycla |
| | Eriogonum speciosum Drew sect. Oligogonum |
| | Eriogonum spectabile B.L.Corbin, Reveal & R.Barron sect. Eucycla |
| | Eriogonum sphaerocephalum Douglas ex Benth. sect. Oligogonum |
| | Eriogonum subalpinum Greene sect. Oligogonum |
| | Eriogonum sulcatum S.Watson |
| | Eriogonum ternatum Howell sect. Oligogonum |
| | Eriogonum terrenatum Reveal sect. Eucycla |
| | Eriogonum thornei (Reveal & Henrickson) L.M.Shultz sect. Eucycla |
| | Eriogonum tiehmii Reveal sect. Eucycla |
| | Eriogonum torreyanum A.Gray sect. Oligogonum |
| | Eriogonum trachygonum Torr. ex Benth. sect. Eucycla |
| | Eriogonum tripodum Greene sect. Oligogonum |
| | Eriogonum tumulosum (Barneby) Reveal sect. Eucycla |
| | Eriogonum twisselmannii (J.T.Howell) Reveal sect. Oligogonum |
| | Eriogonum umbellatum Torr. sect. Oligogonum |
| | Eriogonum undulatum Benth. sect. Oligogonum |
| | Eriogonum ursinum S.Watson sect. Oligogonum |
| | Eriogonum villiflorum A.Gray sect. Eucycla |
| | Eriogonum vineum Small sect. Eucycla |
| | Eriogonum viridulum Reveal sect. Eucycla |
| | Eriogonum wrightii Torr. ex Benth. sect. Eucycla |
| | Eriogonum xanthum Small sect. Oligogonum |
| | Eriogonum zionis var. coccineum J.T.Howell |
| | Eriophyllum achilleoides (DC.) Greene trib. Helenieae |
| | Eriophyllum arachnoideum (Fisch. & Avé-Lall.) Greene trib. Helenieae |
| | Eriophyllum confertiflorum (DC.) A.Gray trib. Helenieae |
| | Eriophyllum croceum Greene trib. Helenieae |
| | Eriophyllum grandiflorum (A.Gray) Greene trib. Helenieae |
| | Eriophyllum integrifolium (Hook.) Greene trib. Helenieae |
| | Eriophyllum lanatum (Pursh) J.Forbes trib. Helenieae |
| | Eriophyllum lanceolatum Howell trib. Helenieae |
| | Eriophyllum obovatum Greene trib. Helenieae |
| | Eriophyllum tanacetifolium Greene trib. Helenieae |
| | Eritrichium argenteum W.Wight |
| | Erocallis triphylla (S.Watson) Rydb. sect. Pygmaea |
| | Eryngium alismifolium Greene |
| | Eryngium constancei M.Y.Sheikh |
| | Eryngium pendletonense K.L.Marsden & M.G.Simpson |
| | Erysimum amoenum (Greene) Rydb. |
| | Erysimum capitatum (Douglas) Greene |
| | Erysimum franciscanum Rossbach |
| | Erysimum insulare (Greene) Greene |
| | Erysimum menziesii (Hook.) Wettst. |
| | Erysimum suffrutescens (Abrams) Rossbach |
| | Erythranthe cardinalis (Douglas ex Benth.) Spach |
| | Erythranthe cinnabarina G.L.Nesom |
| | Erythranthe corallina (Greene) G.L.Nesom |
| | Erythranthe dentata (Nutt. ex Benth.) G.L.Nesom |
| | Erythranthe eastwoodiae (Rydb.) G.L.Nesom & N.S.Fraga |
| | Erythranthe geyeri (Torr.) G.L.Nesom |
| | Erythranthe lewisii (Pursh) G.L.Nesom & N.S.Fraga |
| | Erythranthe linearifolia (A.L.Grant) G.L.Nesom & N.S.Fraga |
| | Erythranthe moschata (Douglas ex Lindl.) G.L.Nesom |
| | Erythranthe parvula (Wooton & Standl.) G.L.Nesom |
| | Erythranthe primuloides (Benth.) G.L.Nesom & N.S.Fraga |
| | Erythranthe tilingii (Regel) G.L.Nesom |
| | Erythranthe utahensis (Pennell) G.L.Nesom |
| | Euphorbia albomarginata Torr. & Gray |
| | Euphorbia brachycera Engelm. |
| | Euphorbia chaetocalyx (Boiss.) Tidestr. |
| | Euphorbia fendleri Torr. & A.Gray |
| | Euphorbia jaegeri V.W.Steinm. & J.M.André |
| | Euphorbia lurida Engelm. |
| | Euphorbia melanadenia Torr. & A.Gray |
| | Euphorbia parishii Greene |
| | Euphorbia radians Benth. |
| | Eurybia kingii (D.C.Eaton) G.L.Nesom trib. Astereae |
| | Eurybia merita (A.Nelson) G.L.Nesom trib. Astereae |
| | Evolvulus nuttallianus Roem. & Schult. |
| | |
| | Fallugia paradoxa (D.Don ex Tilloch) Endl. ex Torr. |
| | Frankenia salina (Molina) I.M.Johnst. |
| | Frasera ackermaniae C.C.Newb. & Goodrich |
| | Frasera albicaulis Griseb. |
| | Frasera albomarginata S.Watson |
| | Frasera cusickii A.Gray |
| | Frasera gypsicola (Barneby) D.M.Post |
| | Frasera induta Tidestr. |
| | Frasera nitida Benth. |
| | Frasera parryi Torr. |
| | Frasera puberulenta Davidson |
| | |
| | Gaillardia aristata Pursh trib. Heliantheae |
| | Gaillardia multiceps Greene trib. Heliantheae |
| | Gaillardia parryi Greene trib. Heliantheae |
| | Gaillardia pinnatifida Torr. trib. Heliantheae |
| | Gaillardia spathulata A.Gray trib. Heliantheae |
| | Galium coloradoense W.Wight |
| | Galium grayanum Ehrend. |
| | Galium hypotrichium A.Gray |
| | Gaultheria humifusa (Graham) Rydb. |
| | Gaultheria ovatifolia A.Gray |
| | Gaultheria shallon Pursh |
| | Gentiana affinis Griseb. sect. Pneumonanthe |
| | Gentiana algida Pall. sect. Frigidae |
| | Gentiana calycosa Griseb. sect. Pneumonanthe |
| | Gentiana newberryi A.Gray sect. Pneumonanthe |
| | Gentiana oregana Engl. ex A.Gray sect. Pneumonanthe |
| | Gentiana parryi Engelm. sect. Pneumonanthe |
| | Gentiana plurisetosa C.T.Mason sect. Pneumonanthe |
| | Gentiana sceptrum Griseb. sect. Pneumonanthe |
| | Gentiana setigera A.Gray sect. Pneumonanthe |
| | Gentiana tiogana A.Heller sect. Pneumonanthe |
| | Gentianopsis barbellata (Engelm.) Iltis |
| | Geranium caespitosum E.James |
| | Geranium richardsonii Fisch. & Trautv. |
| | Geranium viscosissimum Fisch. & C.A.Mey. |
| | Geranium wislizeni S.Watson |
| | Geum ciliatum Pursh |
| | Geum rossii (R.Br.) Ser. |
| | Geum triflorum Pursh |
| | Giliastrum acerosum (A.Gray) Rydb. |
| | Glossopetalon pungens Brandegee |
| | Graptopetalum bartramii Rose |
| | Graptopetalum rusbyi (Greene) Rose |
| | Grayia spinosa (Hook.) Moq. |
| | Gutierrezia petradoria (S.L.Welsh & Goodrich) S.L.Welsh trib. Astereae |
| | Gutierrezia sarothrae (Pursh) Britton & Rusby trib. Astereae |
| | Gutierrezia serotina Greene trib. Astereae |
| | |
| | Hackelia cusickii (Piper) Brand |
| | Hackelia micrantha (Eastw.) J.L.Gentry |
| | Hackelia nervosa (Kellogg) I.M.Johnst. |
| | Hackelia ophiobia R.L.Carr |
| | Hackelia patens (Nutt.) I.M.Johnst. |
| | Hackelia sharsmithii I.M.Johnst. |
| | Hartmaniella sierrae (Rabeler & R.L.Hartm.) M.L.Zhang |
| | Hebecarpa barbeyana (Chodat) J.R.Abbott |
| | Hebecarpa macradenia (A.Gray) J.R.Abbott |
| | Hebecarpa obscura (Benth.) J.R.Abbott |
| | Hedeoma nana (Torr.) Briq. |
| | Hedysarum boreale Nutt. trib. Hedysareae |
| | Helianthella californica ssp. shastensis (W.A.Weber) W.A.Weber |
| | Helianthella parryi A.Gray trib. Heliantheae |
| | Helianthus arizonensis R.C.Jacks. |
| | Hemieva ranunculifolia Raf. |
| | Hesperidanthus argillaceus (S.L.Welsh & N.D.Atwood) Al-Shehbaz |
| | Hesperidanthus barnebyi (S.L.Welsh & N.D.Atwood) Al-Shehbaz |
| | Hesperidanthus jaegeri (Rollins) Al-Shehbaz |
| | Hesperidanthus suffrutescens (Rollins) Al-Shehbaz |
| | Hesperochiron nanus (Lindl.) Greene |
| | Hesperochiron pumilus (Griseb.) Porter |
| | Heterotheca compacta (D.D.Keck) P.M.Sl. trib. Astereae |
| | Heterotheca depressa (Rydb.) Dorn trib. Astereae |
| | Heterotheca hirsutissima (Greene) G.L.Nesom trib. Astereae |
| | Heterotheca jonesii (S.F.Blake) S.L.Welsh & N.D.Atwood trib. Astereae |
| | Heterotheca monarchensis D.A.York, Shevock & J.C.Semple trib. Astereae |
| | Heterotheca oregona (Nutt.) Shinners trib. Astereae |
| | Heterotheca polothrix G.L.Nesom trib. Astereae |
| | Heterotheca rudis (Greene) G.L.Nesom trib. Astereae |
| | Heterotheca scaberrima (A.Gray) G.L.Nesom trib. Astereae |
| | Heterotheca viscida (A.Gray) V.L.Harms trib. Astereae |
| | Heuchera abramsii Rydb. |
| | Heuchera brevistaminea Wiggins |
| | Heuchera caespitosa Eastw. |
| | Heuchera cylindrica Douglas |
| | Heuchera diversifolia Rydb. |
| | Heuchera eastwoodiae Rosend., Butters & Lakela |
| | Heuchera elegans Abrams |
| | Heuchera erubescens A.Brau & C.D.Bouché |
| | Heuchera glomerulata Rosend., Butters & Lakela |
| | Heuchera grossulariifolia Rydb. |
| | Heuchera hartwegii (S.Watson ex Wheelock) Rydb. |
| | Heuchera hirsutissima Rosend., Butters & Lakela |
| | Heuchera lithophila A.Heller |
| | Heuchera maxima Greene |
| | Heuchera merriamii Eastw. |
| | Heuchera micrantha Douglas |
| | Heuchera novomexicana Wheelock |
| | Heuchera parishii Rydb. |
| | Heuchera parvifolia Nutt. |
| | Heuchera pilosissima Fisch. & C.A.Mey. |
| | Heuchera rubescens Torr. |
| | Heuchera sanguinea Engelm. |
| | Hieracium bolanderi A.Gray trib. Cichorieae |
| | Hieracium brevipilum Greene |
| | Hieracium horridum Fr. trib. Cichorieae |
| | Hieracium triste Willd. ex Spreng. trib. Cichorieae |
| | Hoffmannseggia glauca (Ortega) Eifert trib. Caesalpinieae |
| | Hoita orbicularis (Lindl.) Rydb. trib. Psoraleeae |
| | Holmgrenanthe petrophila (Coville & C.V.Morton) Elisens |
| | Hosackia incana Torr. trib. Loteae |
| | Hosackia oblongifolia Benth. trib. Loteae |
| | Hosackia yollabolliensis (Munz) D.D.Sokoloff trib. Loteae |
| | Houstonia rubra Cav. |
| | Houstonia wrightii A.Gray |
| | Hulsea algida A.Gray trib. Helenieae |
| | Hulsea calicarpha (H.M.Hall) S.Watson ex Rydb. trib. Helenieae |
| | Hulsea inyoensis (D.D.Keck) Munz trib. Helenieae |
| | Hulsea nana A.Gray trib. Helenieae |
| | Hulsea parryi A.Gray trib. Helenieae |
| | Hulsea pygmaea (A.Gray) P.M.Sl. trib. Helenieae |
| | Hulsea vestita A.Gray trib. Helenieae |
| | Hydrophyllum albifrons A.Heller |
| | Hydrophyllum alpestre A.Nelson & P.B.Kenn. |
| | Hydrophyllum capitatum Douglas ex Benth. |
| | Hydrophyllum fendleri (A.Gray) A.Heller |
| | Hydrophyllum occidentale (S.Watson) A.Gray |
| | Hydrophyllum tenuipes A.Heller |
| | Hymenoxys bigelovii (A.Gray) K.F.Parker trib. Helenieae |
| | Hymenoxys brandegeei (Porter ex A.Gray) K.F.Parker trib. Helenieae |
| | Hymenoxys floribunda Cockerell trib. Helenieae |
| | Hymenoxys grandiflora (Torr. & A.Gray) K.F.Parker trib. Helenieae |
| | Hymenoxys helenioides (Rydb.) Cockerell trib. Helenieae |
| | Hymenoxys lemmonii (Greene) Cockerell trib. Helenieae |
| | Hymenoxys richardsonii (Hook.) Cockerell trib. Helenieae |
| | Hymenoxys rusbyi Cockerell trib. Helenieae |
| | Hymenoxys subintegra Cockerell trib. Helenieae |
| | Hypericum anagalloides Cham. & Schltdl. sect. Trigynobrathys |
| | Hypericum concinnum Benth. sect. Concinna |
| | Hypericum scouleri Hook. sect. Hypericum |
| | |
| | Ionactis alpina (Nutt.) Greene trib. Astereae |
| | Ionactis caelestis P.J.Leary & G.L.Nesom trib. Astereae |
| | Ipomopsis arizonica (Greene) Wherry |
| | Ipomopsis congesta (Hook.) V.E.Grant |
| | Ipomopsis longiflora (Torr.) V.E.Grant |
| | Ipomopsis roseata (Rydb.) V.E.Grant |
| | Ipomopsis spicata (Nutt.) V.E.Grant |
| | Ipomopsis tenuituba (Rydb.) V.E.Grant |
| | Iris bracteata S.Watson |
| | Iris chrysophylla Howell |
| | Iris fernaldii R.C.Foster |
| | Iris hartwegii Baker |
| | Iris innominata L.F.Hend. |
| | Isocoma humilis G.L.Nesom trib. Astereae |
| | |
| | Jepsonia heterandra Eastw. |
| | Jepsonia malvifolia (Greene) Small |
| | Jepsonia parryi (Torr.) Small |
| | |
| | Kalmia microphylla (Hook.) A.Heller |
| | Keckiella corymbosa (Benth. ex A,DC.) Straw |
| | Keckiella jacintensis (Abrams) P.M.Sl. |
| | Keckiella rothrockii (A.Gray) Straw |
| | Koenigia davisiae (W.H.Brewer) T.M.Schuster & Reveal |
| | Koenigia phytolaccifolia (Small) T.M.Schuster & Reveal |
| | Krascheninnikovia lanata (Pursh) A.Meeuse & A.Smit |
| | |
| | Laphamia cochisensis W.E.Niles trib. Heliantheae |
| | Laphamia gilensis M.E.Jones trib. Heliantheae |
| | Laphamia gracilis M.E.Jones trib. Heliantheae |
| | Laphamia intricata Brandegee trib. Heliantheae |
| | Laphamia inyoensis Ferris trib. Heliantheae |
| | Laphamia lemmonii A.Gray trib. Heliantheae |
| | Laphamia megalocephala S.Watson trib. Heliantheae |
| | Laphamia saxicola Eastw. trib. Heliantheae |
| | Laphamia stansburyi A.Gray trib. Heliantheae |
| | Laphamia villosa S.F.Blake trib. Heliantheae |
| | Lathyrus biflorus T.W. Nelson & J.P.Nelson trib. Vicieae |
| | Lathyrus brachycalyx Rydb. trib. Vicieae |
| | Lathyrus decaphyllus Pursh trib. Vicieae |
| | Lathyrus incanus (J.G.Sm. & Rydb.) Rydb. trib. Vicieae |
| | Lathyrus rigidus T.G.White trib. Vicieae |
| | Lathyrus torreyi S.Watson trib. Vicieae |
| | Lathyrus zionis C.L.Hitch. trib. Vicieae |
| | Lepidium barnebyanum Reveal |
| | Lepidium davisii Rollins |
| | Lepidium integrifolium Nutt. |
| | Lepidium montanum Nutt. |
| | Lepidium nanum S.Watson |
| | Lepidium ostleri S.L.Welsh & Goodrich |
| | Leptosiphon nuttallii (A.Gray) J.M.Porter & L.A.Johnson |
| | Leptosiphon pachyphyllus (R.Patt.) J.M.Porter & L.A.Johnson |
| | Leucophysalis nana (A.Gray) Averett |
| | Leucothoë davisiae Torr. |
| | Lewisia brachycalyx Engelm. ex A.Gray sect. Pygmaea |
| | Lewisia cantelovii J.T.Howell sect. Cotyledon |
| | Lewisia congdonii (Rydb.) S.Clay sect. Cotyledon |
| | Lewisia cotyledon (S.Watson) B.L.Rob. sect. Cotyledon |
| | Lewisia disepala Rydb. sect. Rediviva |
| | Lewisia heckneri (C.V.Morton) J.T.Howell sect. Cotyledon |
| | Lewisia howellii (S.Watson) B.L.Rob. sect. Cotyledon |
| | Lewisia kelloggii K.Brandegee sect. Pygmaea |
| | Lewisia leeana (Porter) B.L.Rob. sect. Cotyledon |
| | Lewisia longipetala (Piper) S.Clay sect. Pygmaea |
| | Lewisia maguirei A.H.Holmgren sect. Rediviva |
| | Lewisia minor Rydb. sect. Rediviva |
| | Lewisia nevadensis (A.Gray) B.L.Rob. sect. Pygmaea |
| | Lewisia oppositifolia (S.Watson) B.L.Rob. sect. Pygmaea |
| | Lewisia pygmaea (A.Gray) B.L.Rob. sect. Pygmaea |
| | Lewisia rediviva Pursh sect. Rediviva |
| | Lewisia stebbinsii Gankin & W.R.Hildreth sect. Pygmaea |
| | Linanthus caespitosus (Nutt.) J.M.Porter & L.A.Johnson |
| | Linanthus californicus (Hook. & Arn.) J.M.Porter |
| | Linanthus hallii (Parish) P.M.Sl. |
| | Linanthus hookeri (Douglas ex Hook.) P.M.Sl. |
| | Linanthus jaegeri (Munz) J.M.Porter & J.M.Johnson |
| | Linanthus pungens (Torr.) J.M.Porter & L.A.Johnson |
| | Linanthus watsonii (A.Gray) Wherry |
| | Linum kingii S.Watson |
| | Linum lewisii Pursh |
| | Linum subteres (Trel.) H.J.P.Winkl. |
| | Lithophragma affine A.Gray |
| | Lithophragma cymbalaria Torr. & A.Gray |
| | Lithophragma glabrum Nutt. |
| | Lithophragma heterophyllum (Hook. & Arn.) Torr. & A.Gray |
| | Lithophragma parviflorum (Hook.) Nutt. |
| | Lithophragma tenellum Nutt. |
| | Lithophragma trifoliatum Eastw. |
| | Lithospermum californicum A.Gray |
| | Lithospermum incisum Lehm. |
| | Lomatium ambiguum (Nutt.) J.M.Coult. & Rose |
| | Lomatium austiniae (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lomatium canbyi (J.M.Coult. & Rose) J.M.Coulter & Rose |
| | Lomatium caruifolium (Hook. & Arn.) J.M.Coult. & Rose |
| | Lomatium ciliolatum Jeps. |
| | Lomatium congdonii J.M.Coult. & Rose |
| | Lomatium cous (S.Watson) J.M.Coult. & Rose |
| | Lomatium donnellii (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lomatium engelmannii Mathias |
| | Lomatium fusiformis (S.Watson) J.F.Sm. & Mansfield |
| | Lomatium grayi (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lomatium hendersonii (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lomatium hooveri (Mathias & Constance) Constance & B.Ertter |
| | Lomatium humile (J.M.Coult. & Rose) Hoover |
| | Lomatium insulare (Eastw.) Munz |
| | Lomatium inyoense Mathias & Constance |
| | Lomatium juniperinum (M.E.Jones) J.M.Coult. & Rose |
| | Lomatium latilobum (Rydb.) Mathias |
| | Lomatium linearifolium (S.Watson) J.F.Sm. & Mansfield |
| | Lomatium macdougalii J.M.Coult. & Rose |
| | Lomatium macrocarpum (Hook. & Arn.) L.M.Coult. & Rose |
| | Lomatium martindalei (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lomatium minimum (Mathias) Mathias |
| | Lomatium mohavense (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lomatium nevadense (S.Watson) J.M.Coult. & Rose |
| | Lomatium nuttallii (A.Gray) J.F.Macbr. |
| | Lomatium observatorium Constance & B.Ertter |
| | Lomatium orientale J.M.Coult. & Rose |
| | Lomatium parishii (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lomatium piperi J.M.Coulter & Rose |
| | Lomatium roseanum Cronquist |
| | Lomatium scabrum (J.M.Coult. & Rose) Mathias |
| | Lomatium serpentinum (M.E.Jones) Mathias |
| | Lomatium shevockii R.L.Hartm. & Constance |
| | Lomatium stebbinsii Schlessman & Constance |
| | Lomatium torreyi (J.M.Coult. & Rose) J.M.Coulter & Rose |
| | Lomatium tracyi Mathias & Constance |
| | Lomatium utriculatum (Nutt.) J.M.Coult. & Rose |
| | Lomatium vaginatum J.M.Coult. & Rose |
| | Lonicera interrupta Benth. |
| | Luetkea pectinata (Pursh) Kuntze |
| | Luina hypoleuca Benth. trib. Senecioneae |
| | Lupinus argenteus Pursh trib. Genisteae |
| | Lupinus aridus Douglas trib. Genisteae |
| | Lupinus breweri A.Gray trib. Genisteae |
| | Lupinus cervinus Kellogg trib. Genisteae |
| | Lupinus confertus Kellogg trib. Genisteae |
| | Lupinus constancei T.W.Nelson & J.P.Nelson trib. Genisteae |
| | Lupinus covillei Greene trib. Genisteae |
| | Lupinus crassus Payson trib. Genisteae |
| | Lupinus croceus Eastw. trib. Genisteae |
| | Lupinus culbertsonii Greene trib. Genisteae |
| | Lupinus duranii Eastw. trib. Genisteae |
| | Lupinus fulvomaculatus Payson trib. Genisteae |
| | Lupinus gracilentus Greene trib. Genisteae |
| | Lupinus grayi S.Watson trib. Genisteae |
| | Lupinus holosericeus Nutt. trib. Genisteae |
| | Lupinus hypolasius Greene trib. Genisteae |
| | Lupinus hypoleucus Greene trib. Genisteae |
| | Lupinus lapidicola A.Heller trib. Genisteae |
| | Lupinus laxiflorus Douglass ex Lindl. trib. Genisteae |
| | Lupinus littoralis Douglas ex Lindl. trib. Genisteae |
| | Lupinus lobbii A.Gray ex S.Watson trib. Genisteae |
| | Lupinus lyallii A.Gray trib. Genisteae |
| | Lupinus monticola Rydb. trib. Genisteae |
| | Lupinus nevadensis A.Heller trib. Genisteae |
| | Lupinus obtusilobus A.Heller trib. Genisteae |
| | Lupinus onustus S.Watson trib. Genisteae |
| | Lupinus palmeri S.Watson trib. Genisteae |
| | Lupinus parviflorus Nutt. ex. Hook. & Arn. trib. Genisteae |
| | Lupinus saxosus Howell trib. Genisteae |
| | Lupinus sellulus Kellogg trib. Genisteae |
| | Lupinus sericatus Kellogg trib. Genisteae |
| | Lupinus sericeus Pursh trib. Genisteae |
| | Lupinus tidestromii Greene trib. Genisteae |
| | Lupinus washoensis A.Heller trib. Genisteae |
| | Lupinus watsonii A.Heller trib. Genisteae |
| | Lygodesmia arizonica Tomb. trib. Cichorieae |
| | Lygodesmia dianthopsis (D.C.Eaton) Tomb trib. Cichorieae |
| | Lygodesmia entrada S.L.Welsh & Goodrich trib. Cichorieae |
| | Lygodesmia grandiflora (Nutt.) Torr. & A.Gray trib. Cichorieae |
| | Lygodesmia juncea (Pursh) D.Don ex Hook. trib. Cichorieae |
| | Lysimachia europaea (L.) U.Manns & Anderb. |
| | |
| | Mabrya acerifolia (Pennell) Elisens |
| | Marina calycosa (A.Gray) Barneby trib. Amorpheae |
| | Marina orcuttii (S.Watson) Barneby trib. Amorpheae |
| | Melampodium leucanthum Torr. & A.Gray trib. Heliantheae |
| | Melanocalyx uniflora (L.) Morin |
| | Menodora scabra Engelm. ex A.Gray |
| | Menodora spinescens A.Gray |
| | Mentzelia argillosa J.Darl. |
| | Mentzelia decapetala (Sims) Urb. |
| | Mentzelia inyoensis H.J.Thomps. & Prigge |
| | Mentzelia laevicaulis (Douglas ex Hook.) Torr. & A.Gray |
| | Mentzelia oligosperma Nutt. ex Sims |
| | Mentzelia oreophila J.Darl. |
| | Mentzelia torreyi A.Gray |
| | Mertensia arizonica Greene |
| | Mertensia bella Piper |
| | Mertensia brevistyla S.Watson |
| | Mertensia ciliata (E.James ex Torr.) G.Don |
| | Mertensia coriacea A.Nelson |
| | Mertensia cusickii Piper |
| | Mertensia franciscana A.Heller |
| | Mertensia longiflora Greene |
| | Mertensia oblongifolia (Nutt.) G.Don |
| | Mertensia stomatechoides Kellogg |
| | Micranthes aprica (Greene) Small sect. Micranthes |
| | Micranthes bryophora (A.Gray) Brouillet & Gornall sect. Arabisa |
| | Micranthes californica (Greene) Small sect. Micranthes |
| | Micranthes eriophora (S.Watson) Small sect. Dermasea |
| | Micranthes ferruginea (Graham) Brouillet & Gornall sect. Arabisa |
| | Micranthes howellii (Greene) Small sect. Dermasea |
| | Micranthes integrifolia (Hook.) Small sect. Micranthes |
| | Micranthes marshallii (Greene) Small sect. Dermasea |
| | Micranthes mertensiana (Bong.) Rosend. |
| | Micranthes nidifica (Greene) Small sect. Micranthes |
| | Micranthes occidentalis (S.Watson) Small sect. Dermasea |
| | Micranthes oregana (Howell) Small sect. Micranthes |
| | Micranthes rhomboidea (Greene) Small sect. Micranthes |
| | Micranthes rufidula Small sect. Dermasea |
| | Micranthes tolmiei (Torr. & A.Gray) Brouillet & Gornall sect. Intermediae |
| | Micromeria douglasii Benth. |
| | Microseris alpestris (A.Gray) Q.Jones ex Cronquist trib. Cichorieae |
| | Microseris troximoides A.Gray trib. Cichorieae |
| | Mitellastra caulescens (Nutt.) Howell |
| | Moehringia lateriflora (L.) Fenzl |
| | Monarda fistulosa L. |
| | Monarda menthifolia Graham |
| | Monardella arida (H.M.Hall) P.M.Sl. |
| | Monardella australis Abrams |
| | Monardella beneolens Shevock, Ertter & Jokerst |
| | Monardella boydii A.C.Sanders & Elvin |
| | Monardella cinerea Abrams |
| | Monardella crispa Elmer |
| | Monardella eremicola A.C.Sanders & Elvin |
| | Monardella franciscana Elmer |
| | Monardella glauca Greene |
| | Monardella macrantha A.Gray |
| | Monardella nana A.Gray |
| | Monardella neglecta Greene |
| | Monardella odoratissima Benth. |
| | Monardella pallida A.Heller |
| | Monardella palmeri A.Gray |
| | Monardella purpurea Howell |
| | Monardella sheltonii Torr. ex Durand |
| | Monardella stebbinsii Hardham & Bartel |
| | Monardella subserrata Greene |
| | Monardella tenuiflora S.Watson ex A.Gray |
| | Monardella villosa Benth. |
| | Monardella viridis Jeps. |
| | Moneses uniflora (L.) A.Gray |
| | Montia chamissoi (Ledeb. ex Spreng.) Greene |
| | Montia parvifolia (Moc. ex DC.) Greene |
| | Musineon hookeri (Torr. & A.Gray) Nutt. |
| | Musineon lineare (Rydb.) Mathias |
| | Musineon vaginatum Rydb. |
| | |
| | Nama lobbii A.Gray |
| | Nama rothrockii A.Gray |
| | Nestotus lanuginosus (A.Gray) G.L.Nesom trib. Astereae |
| | Nestotus stenophyllus (A.Gray) R.P.Roberts & al. trib. Astereae |
| | Nevada holmgrenii (Rollins) N.H.Holmgren |
| | Nicolletia occidentalis A.Gray trib. Calenduleae |
| | Noccaea californica (S.Watson) P.M.Sl. |
| | Noccaea fendleri (A.Gray) Holub |
| | Noccaea glauca (A.Nelson) Holub |
| | |
| | Oenothera acutissima W.L.Wagner sect. Lavauxia |
| | Oenothera albicaulis Pursh sect. Anogra |
| | Oenothera avita (W.M.Klein) W.E.Klein sect. Anogra |
| | Oenothera brachycarpa A.Gray sect. Megapterium |
| | Oenothera cespitosa Nutt. sect. Pachylophus |
| | Oenothera coronopifolia Torr. & A.Gray sect. Kleinia |
| | Oenothera deltoides Torr. & Frém. sect. Anogra |
| | Oenothera fendleri A.Gray sect. Calylophus |
| | Oenothera flava (A.Nelson) Garrett sect. Lavauxia |
| | Oenothera greggii A.Gray sect. Calylophus |
| | Oenothera havardii S.Watson sect. Paradoxus |
| | Oenothera howardii (A.Nelson) M.E.Jones ex Prain sect. Megapterium |
| | Oenothera kunthiana (Spach) Munz |
| | Oenothera latifolia (Rydb.) Munz sect. Anogra |
| | Oenothera lavandulifolia Torr. & A.Gray sect. Calylophus |
| | Oenothera marginata Nutt. ex Hook. & Arn. sect. Pachylophus |
| | Oenothera pallida Lindl. sect. Anogra |
| | Oenothera platanorum P.H.Raven & D.R.Parn. sect. Hartmannia |
| | Oenothera rosea L‘Hér. ex Aiton sect. Hartmannia |
| | Oenothera runcinata (Engelm.) Munz sect. Anogra |
| | Oenothera serrulata Nutt. sect. Calylophus |
| | Oenothera trichocalyx Nutt. sect. Anogra |
| | Oenothera xylocarpa Coville |
| | Oreocarya bakeri Greene |
| | Oreocarya barnebyi (I.M.Johnst.) Hasenstab & M.G.Simpson |
| | Oreocarya breviflora Osterh. |
| | Oreocarya caespitosa A.Nelson |
| | Oreocarya cinerea Greene |
| | Oreocarya compacta (L.C.Higgins) R.B.Keelley |
| | Oreocarya confertiflora Greene |
| | Oreocarya crymophila (I.M.Johnst.) Jeps. & Hoover |
| | Oreocarya flava A.Nelson |
| | Oreocarya flavoculata A.Nelson |
| | Oreocarya fulvocanescens (S.Watson) Greene |
| | Oreocarya glomerata (Fraser ex Pursh) Greene |
| | Oreocarya grahamii (I.M.Johnst.) R.B.Kelley |
| | Oreocarya hoffmannii (I.M.Johnst.) Abrams |
| | Oreocarya humilis (A.Gray) Greene |
| | Oreocarya interrupta Greene |
| | Oreocarya johnstonii (L.C.Higgins) Hasenstab & M.G.Simpson |
| | Oreocarya jonesiana Payson |
| | Oreocarya longiflora A.Nelson |
| | Oreocarya nitida Greene |
| | Oreocarya nubigena Greene |
| | Oreocarya osterhoutii Payson |
| | Oreocarya paradoxa A.Nelson |
| | Oreocarya rollinsii (I.M.Johnst.) W.A.Weber |
| | Oreocarya roosiorum (Munz) R.B.Kelley & al. |
| | Oreocarya schoolcraftii (Tiehm) R.B.Kelley |
| | Oreocarya sericea (A.Gray) Greene |
| | Oreocarya shackletteana (L.C..Higgins) R.B.Kelley |
| | Oreocarya sobolifera (Payson) R.B.Kelley |
| | Oreocarya spiculifera Piper |
| | Oreocarya suffruticosa (Torr.) Greene |
| | Oreocarya tenuis Eastw. |
| | Oreocarya tumulosa Payson |
| | Oreonana clementis (M.E.Jones) Jeps. |
| | Oreonana purpurascens Shevock & Constance |
| | Oreonana vestita (S.Watson) Jeps. |
| | Oreostemma andersonii (A.Gray) Greene trib. Astereae |
| | Oreostemma haydenii (Porter) Greene trib. Astereae |
| | Oreostemma peirsonii (Sharsm.) G.L.Nesom trib. Astereae |
| | Orthilia secunda (L.) House |
| | Oxalis caerulea (Small) R.Knuth |
| | Oxalis decaphylla Kunth |
| | Oxalis metcalfei (Small) R.Knuth |
| | Oxalis oregana Nutt. |
| | Oxalis suksdorfii Trel. |
| | Oxalis trilliifolia Hook. |
| | Oxyria digyna (L.) Hill |
| | Oxytropis argophylla (Rydb.) P.M.Sl. trib. Galegeae |
| | Oxytropis australis (S.L.Welsh) P.M.Sl. trib. Galegeae |
| | Oxytropis besseyi (Rydb.) Blank. trib. Galegeae |
| | Oxytropis foliolosa Hook. sect. Mesogaea |
| | Oxytropis jonesii Barneby trib. Galegeae |
| | Oxytropis juniperina (S.L.Welsh) P.M.Sl. |
| | Oxytropis multiceps Nutt. trib. Galegeae |
| | Oxytropis obnapiformis Ced.Porter trib. Galegeae |
| | Oxytropis oreophila A.Gray trib. Galegeae |
| | Oxytropis parryi A.Gray trib. Galegeae |
| | Oxytropis patens (Rydb.) A.Nelson trib. Galegeae |
| | Oxytropis retrorsa Fernald sect. Mesogaea |
| | Oxytropis sericea Nutt. trib. Galegeae |
| | Oxytropis ventosa (Greene) P.M.Sl. trib. Galegeae |
| | Oxytropis viscida Nutt. trib. Galegeae |
| | Ozomelis stauropetala (Piper) Rydb. |
| | Ozomelis trifida (Graham) Rydb. |
| | |
| | Packera actinella (Greene) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera bernardina (Greene) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera cana (Hook.) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera castoreus (S.L.Welsh) Kartesz trib. Senecioneae |
| | Packera dimorphophylla (Greene) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera franciscana (Greene) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera greenei (A.Gray) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera hesperia (Greene) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera ionophylla (Greene) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera malmstenii (S.F.Blake ex Tidestr.) Kartesz trib. Senecioneae |
| | Packera musiniensis (S.L.Welsh) Trock trib. Senecioneae |
| | Packera pauciflora (Pursh) Á.Löve & D.Löve trib. Senecioneae |
| | Packera subnuda (DC.) Trock & T.M.Barkley trib. Senecioneae |
| | Packera werneriifolia (A.Gray) W.A.Weber & Á.Löve trib. Senecioneae |
| | Paeonia brownii Douglas ex Hook. |
| | Paeonia californica Nutt. ex Torr. & A.Gray |
| | Parnassia cirrata Piper |
| | Parnassia fimbriata K.D.Koenig |
| | Parnassia intermedia Rydb. |
| | Parnassia kotzebuei Cham. ex Spreng. |
| | Parnassia palustris L. |
| | Parnassia parviflora DC. |
| | Paronychia pulvinata A.Gray |
| | Paronychia sessiliflora Nutt. |
| | Parrya rydbergii Botsch. |
| | Parthenium ligulatum (M.E.Jones) Barneby trib. Heliantheae |
| | Paxistima myrsinites (Pursh) Raf. |
| | Pectiantia pentandra (Hook.) Rydb. |
| | Pectis longipes A.Gray trib. Tageteae |
| | Pedicularis centranthera A.Gray |
| | Pedicularis dudleyi Elmer |
| | Pedicularis racemosa Douglas ex Benth. |
| | Pedicularis semibarbata A.Gray |
| | Pediomelum californicum (S.Watson) Rydb. trib. Psoraleeae |
| | Pediomelum castoreum (S.Watson) Rydb. trib. Psoraleeae |
| | Pediomelum epipsilum (Barneby) S.L.Welsh trib. Psoraleeae |
| | Pediomelum esculentum (Pursh) Rydb. trib. Psoraleeae |
| | Pediomelum megalanthum (Wooton & Standl.) Rydb. trib. Psoraleeae |
| | Pediomelum mephiticum (S.Watson) Rydb. trib. Psoraleeae |
| | Pediomelum retrorsum Rydb. trib. Psoraleeae |
| | Penstemon aberrans (M.E.Jones) P.M.Sl. sect. Penstemon |
| | Penstemon abietinus Pennell sect. Caespitosi |
| | Penstemon acaulis L.O.Williams sect. Cristati |
| | Penstemon acuminatus Douglas ex Lindl. sect. Coerulei |
| | Penstemon aggregatus Pennell sect. Penstemon |
| | Penstemon albomarginatus M.E.Jones sect. Penstemon |
| | Penstemon ambiguus Torr. sect. Ambigui |
| | Penstemon ammophilus N.H.Holmgren & L.M.Shultz sect. Glabri |
| | Penstemon anguineus Eastw. sect. Penstemon |
| | Penstemon angustifolius Nutt. ex Pursh sect. Coerulei |
| | Penstemon arenarius Greene sect. Penstemon |
| | Penstemon atratus (D.D.Keck) P.M.Sl. sect. Caespitosi |
| | Penstemon atwoodii S.L.Welsh sect. Cristati |
| | Penstemon azureus Benth. sect. Saccanthera |
| | Penstemon barnebyi N.H.Holmgren sect. Cristati |
| | Penstemon berryi Eastw. sect. Erianthera |
| | Penstemon brachyanthus Pennell sect. Penstemon |
| | Penstemon bracteatus D.D.Keck sect. Coerulei |
| | Penstemon breviculus (D.D.Keck) G.T.Nisbet & R.C.Jacks. sect. Cristati |
| | Penstemon brevifolius (A.Gray) A.Nelson sect. Penstemon |
| | Penstemon caesius A.Gray sect. Saccanthera |
| | Penstemon caespitosus Nutt. ex A.Gray sect. Caespitosi |
| | Penstemon calcareus Brandegee sect. Cristati |
| | Penstemon californicus (Munz & I.M.Johnst.) D.D.Keck sect. Caespitosi |
| | Penstemon carnosus Pennell sect. Coerulei |
| | Penstemon cephalophorus Greene sect. Penstemon |
| | Penstemon cinicola D.D.Keck sect. Penstemon |
| | Penstemon cleburnei M.E.Jones sect. Erianthera |
| | Penstemon clevelandii A.Gray sect. Spectabiles |
| | Penstemon clutei A.Nelson sect. Spectabiles |
| | Penstemon coloradoensis A.Nelson sect. Caespitosi |
| | Penstemon comarrhenus A.Gray sect. Glabri |
| | Penstemon compactus (D.D.Keck) Crosswh. sect. Glabri |
| | Penstemon concinnus D.D.Keck sect. Cristati |
| | Penstemon confusus M.E.Jones sect. Gentianoides |
| | Penstemon congestus (M.E.Jones) Pennell sect. Coerulei |
| | Penstemon crandallii A.Nelson sect. Caespitosi |
| | Penstemon cyananthus Hook. sect. Glabri |
| | Penstemon cyanocaulis Payson sect. Glabri |
| | Penstemon dasyphyllus A.Gray sect. Chamaeleon |
| | Penstemon davidsonii Greene sect. Erianthera |
| | Penstemon deaveri Crosswh. sect. Glabri |
| | Penstemon desertipicti A.Nelson sect. Caespitosi |
| | Penstemon deustus Douglas sect. Penstemon |
| | Penstemon discolor D.D.Keck sect. Caespitosi |
| | Penstemon distans N.H.Holmgren sect. Cristati |
| | Penstemon dolius M.E.Jones sect. Cristati |
| | Penstemon duchesnensis.(N.H.Holmgren) Neese sect. Cristati |
| | Penstemon fendleri Torr. & A.Gray sect. Coerulei |
| | Penstemon filiformis (D.D.Keck) D.D.Keck sect. Saccanthera |
| | Penstemon floribundus Danley sect. Saccanthera |
| | Penstemon flowersii Neese & S.L.Welsh sect. Coerulei |
| | Penstemon formosus A.Nelson sect. Penstemon |
| | Penstemon francisci-pennellii Crosswh. sect. Glabri |
| | Penstemon franklinii S.L.Welsh sect. Cristati |
| | Penstemon fremontii Torr. & A.Gray sect. Glabri |
| | Penstemon fruticiformis Coville sect. Spectabiles |
| | Penstemon gibbensii Dorn sect. Glabri |
| | Penstemon glabrescens Pennell sect. Caespitosi |
| | Penstemon goodrichii N.H.Holmgren sect. Cristati |
| | Penstemon gracilentus A.Gray sect. Saccanthera |
| | Penstemon grahamii D.D.Keck sect. Cristati |
| | Penstemon grinnellii Eastw. sect. Spectabiles |
| | Penstemon heterander Torr. & A.Gray sect. Penstemon |
| | Penstemon heterodoxus A.Gray sect. Penstemon |
| | Penstemon heterophyllus Lindl. sect. Saccanthera |
| | Penstemon higginsii (Neese) N.H.Holmgren & N.D.Atwood sect. Saccanthera |
| | Penstemon humilis Nutt. ex A.Gray sect. Penstemon |
| | Penstemon idahoensis N.D.Atwood & S.L.Welsh sect. Glabri |
| | Penstemon immanifestus N.H.Holmgren sect. Coerulei |
| | Penstemon incertus Brandegee sect. Spectabiles |
| | Penstemon janishiae N.H.Holmgren sect. Cristati |
| | Penstemon keckii Clokey sect. Glabri |
| | Penstemon kingii S.Watson sect. Saccanthera |
| | Penstemon laetus A.Gray sect. Saccanthera |
| | Penstemon laevis Pennell sect. Glabri |
| | Penstemon leiophyllus Pennell sect. Glabri |
| | Penstemon lentus Pennell sect. Coerulei |
| | Penstemon leonardii Rydb. sect. Saccanthera |
| | Penstemon linarioides A.Gray sect. Caespitosi |
| | Penstemon longiflorus (Pennell) S.L.Clark sect. Glabri |
| | Penstemon macranthus Eastw. sect. Spectabiles |
| | Penstemon marcusii (D.D.Keck) N.H.Holmgren sect. Cristati |
| | Penstemon modestus Greene sect. Penstemon |
| | Penstemon moffatii Eastw. sect. Cristati |
| | Penstemon monoensis A.Heller sect. Cristati |
| | Penstemon montanus Greene sect. Erianthera |
| | Penstemon moriahensis N.H.Holmgren sect. Glabri |
| | Penstemon mucronatus N.H.Holmgren sect. Coerulei |
| | Penstemon nanus D.D.Keck sect. Cristati |
| | Penstemon navajoa N.H.Holmgren sect. Glabri |
| | Penstemon neotericus D.D.Keck sect. Saccanthera |
| | Penstemon newberryi A.Gray sect. Erianthera |
| | Penstemon nudiflorus A.Gray sect. Glabri |
| | Penstemon obtusifolius Pennell sect. Penstemon |
| | Penstemon oliganthus Wooton & Standl. sect. Penstemon |
| | Penstemon ophianthus Pennell sect. Cristati |
| | Penstemon oreocharis Greene sect. Penstemon |
| | Penstemon pachyphyllus A.Gray ex Rydb. sect. Coerulei |
| | Penstemon pahutensis N.H.Holmgren sect. Glabri |
| | Penstemon palmeri A.Gray sect. Spectabiles |
| | Penstemon papillatus J.T.Howell sect. Saccanthera |
| | Penstemon parryi (A.Gray) A.Gray sect. Gentianoides |
| | Penstemon parvus Pennell sect. Glabri |
| | Penstemon patens (M.E.Jones) N.H.Holmgren sect. Gentianoides |
| | Penstemon patricus N.H.Holmgren sect. Saccanthera |
| | Penstemon perbrevis (Pennell) P.M.Sl. sect. Caespitosi |
| | Penstemon personatus D.D.Keck sect. Erianthera |
| | Penstemon petiolatus Brandegee sect. Petiolati |
| | Penstemon pinifolius Greene sect. Caespitosi |
| | Penstemon pinorum L.M.Shultz & J.S.Shultz sect. Cristati |
| | Penstemon platyphyllus Rydb. sect. Saccanthera |
| | Penstemon praeteritus (Cronquist) P.M.Sl. sect. Erianthera |
| | Penstemon pratensis Greene sect. Penstemon |
| | Penstemon procerus Douglas ex Graham sect. Penstemon |
| | Penstemon pseudoputus (Crosswh.) N.H.Holmgren sect. Glabri |
| | Penstemon pudicus Reveal & Beatley sect. Saccanthera |
| | Penstemon purpusii Brandegee sect. Saccanthera |
| | Penstemon putus A.Nelson sect. Glabri |
| | Penstemon radicosus A.Nelson sect. Penstemon |
| | Penstemon rhizomatosus N.H.Holmgren sect. Saccanthera |
| | Penstemon roezlii Regel sect. Saccanthera |
| | Penstemon rostriflorus Kellogg sect. Bridgesiani |
| | Penstemon rupicola (Piper) Howell sect. Erianthera |
| | Penstemon rydbergii A.Nelson sect. Penstemon |
| | Penstemon scapoides D.D.Keck sect. Saccanthera |
| | Penstemon scariosus Pennell sect. Glabri |
| | Penstemon sepalulus A.Nelson sect. Saccanthera |
| | Penstemon shastensis D.D.Keck sect. Penstemon |
| | Penstemon sileri (A.Gray) P.M.Sl. sect. Caespitosi |
| | Penstemon sonomensis Greene sect. Erianthera |
| | Penstemon speciosus Douglas sect. Glabri |
| | Penstemon strictiformis Rydb. sect. Glabri |
| | Penstemon strictus Benth. sect. Glabri |
| | Penstemon subglaber Rydb. sect. Glabri |
| | Penstemon subulatus M.E.Jones sect. Gentianoides |
| | Penstemon sudans M.E.Jones sect. Penstemon |
| | Penstemon superbus A.Nelson sect. Gentianoides |
| | Penstemon thompsoniae (A.Gray) Rydb. sect. Caespitosi |
| | Penstemon thurberi Torr. sect. Ambigui |
| | Penstemon tidestromii Pennell sect. Glabri |
| | Penstemon tiehmii N.H.Holmgren sect. Saccanthera |
| | Penstemon tracyi D.D.Keck sect. Penstemon |
| | Penstemon uintahensis Pennell sect. Glabri |
| | Penstemon utahensis Eastw. sect. Gentianoides |
| | Penstemon venosus (D.D.Keck) Reveal sect. Coerulei |
| | Penstemon venustus Douglas sect. Saccanthera |
| | Penstemon virgatus A.Gray sect. Glabri |
| | Penstemon wardii A.Gray sect. Glabri |
| | Penstemon watsonii A.Gray sect. Penstemon |
| | Penstemon whippleanus A.Gray sect. Penstemon |
| | Penstemon xylus A.Nelson sect. Caespitosi |
| | Penstemon yampaensis Penland sect. Cristati |
| | Perityle ajoensis Todsen trib. Heliantheae |
| | Perityle ambrosiifolia Greene ex A.M.Powell & Yarb. trib. Heliantheae |
| | Perityle ciliata (L.H.Dewey) Rydb. trib. Heliantheae |
| | Perityle congesta (M.E.Jones) Shinners trib. Heliantheae |
| | Perityle coronopifolia A.Gray trib. Heliantheae |
| | Perityle rotundifolia (Benth.) Brandegee trib. Heliantheae |
| | Perityle specicola S.L.Welsh & Neese trib. Heliantheae |
| | Petradoria graminea Wooton & Standl. trib. Astereae |
| | Petradoria pumila (Nutt.) Greene trib. Astereae |
| | Petrophytum acuminatum Rydb. |
| | Petrophytum caespitosum (Nutt.) Rydb. |
| | Phacelia argentea A.Nelson & J.F.Macbr. |
| | Phacelia corymbosa Jeps. |
| | Phacelia dalesiana J.T.Howell |
| | Phacelia frigida Greene |
| | Phacelia hydrophylloides Torr. ex A.Gray |
| | Phacelia perityloides Coville |
| | Phalacroseris bolanderi A.Gray trib. Cichorieae |
| | Phemeranthus brevicaulis (S.Watson) Kiger |
| | Phemeranthus brevifolius (Torr.) Hershk. |
| | Phemeranthus humilis (Greene) Kiger |
| | Phemeranthus parviflorus (Nutt.) Kiger |
| | Phemeranthus parvulus (Rose & Standl.) D.J.Ferguson & T.M.Price |
| | Phemeranthus thompsonii (N.D.Atwood & S.L.Welsh) Kiger |
| | Phemeranthus validulus (Greene) Kiger |
| | Phlox adsurgens Torr. ex A.Gray Alphaphlox, Stoloniferae |
| | Phlox amabilis Brand Protophlox, Tenuifoliae |
| | Phlox austromontana Coville Microphlox, Canescentes |
| | Phlox caespitosa Nutt. Microphlox, Caespitosae |
| | Phlox canescens Torr. & A.Gray Microphlox, Canescentes |
| | Phlox cluteana A.Nelson Alphaphlox, Cluteanae |
| | Phlox condensata (A.Gray) E.E.Nelson Microphlox, Caespitosae |
| | Phlox costata Rydb. Microphlox, Multiflorae |
| | Phlox covillei E.E.Nelson Microphlox, Caespitosae |
| | Phlox densa Brand Microphlox, Canescentes |
| | Phlox diffusa Benth. Microphlox, Canescentes |
| | Phlox dispersa Sharsm. |
| | Phlox dolichantha A.Gray Alphaphlox, Longifoliae |
| | Phlox douglasii Hook. |
| | Phlox gladiformis (M.E.Jones) E.E.Nelson Microphlox, Aculeatae |
| | Phlox griseola Wherry Microphlox, Caespitosae |
| | Phlox hirsuta E.E.Nelson |
| | Phlox hoodii Richardson Microphlox, Canescentes |
| | Phlox jonesii Wherry Microphlox, Canescentes |
| | Phlox kelseyi Britton Microphlox, Sibiricae |
| | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| | Phlox muscoides Nutt. Microphlox, Canescentes |
| | Phlox nana Nutt. Protophlox, Nanae |
| | Phlox pulvinata (Wherry) Cronquist Microphlox, Caespitosae |
| | Phlox rigida Benth. Microphlox, Douglasianae |
| | Phlox scleranthifolia Rydb. Microphlox, Canescentes |
| | Phlox subulata L. Alphaphlox, Subulatae |
| | Phlox tenuifolia E.E.Nelson Protophlox, Tenuifoliae |
| | Phlox tumulosa Wherry Microphlox, Caespitosae |
| | Phlox viscida E.E.Nelson Alphaphlox, Longifoliae |
| | Phlox woodhousei (A.Gray) E.E.Nelson Protophlox, Speciosae |
| | Phoenicaulis cheiranthoides Nutt. |
| | Phyla cuneifolia (Torr.) Greene |
| | Phyla lanceolata (Michx.) Greene |
| | Phyllodoce breweri (A.Gray) A.Heller |
| | Phyllodoce empetriformis (Sm.) D.Don |
| | Physaria acutifolia Rydb. |
| | Physaria arizonica (S.Watson) O´Kane & Al-Shehbaz |
| | Physaria bernardina (Munz) P.M.Sl. |
| | Physaria chambersii Rollins |
| | Physaria cinerea (S.Watson) O´Kane & Al-Shehbaz |
| | Physaria cobrensis (Rollins & E.A.Shaw) N.H.Holmgren |
| | Physaria confluens (Maguire & A.H.Holmgren) P.M.Sl. |
| | Physaria cordiformis Rollins |
| | Physaria fendleri (A.Gray) O´Kane & Al-Shehbaz |
| | Physaria garrettii (Payson) O´Kane & Al-Shehbaz |
| | Physaria goodrichii (Rollins) O´Kane & Al-Shehbaz |
| | Physaria grahamii C.V.Morton |
| | Physaria hemiphysaria (Maguire) O´Kane & Al-Shehbaz |
| | Physaria hitchcockii (Munz) O´Kane & Al-Shehbaz |
| | Physaria intermedia (S.Watson) O´Kane & Al-Shehbaz |
| | Physaria kaibabensis (Rollins) N.H.Holmgren |
| | Physaria kingii (S.Watson) O´Kane & Al-Shehbaz |
| | Physaria lepidota Rollins |
| | Physaria ludoviciana (Nutt.) O´Kane & Al-Shehbaz |
| | Physaria montana (A.Gray) Greene |
| | Physaria multiceps (Maguire) O´Kane & Al-Shehbaz |
| | Physaria navajoensis (O'Kane) O'Kane & Al-Shehbaz |
| | Physaria nelsoni O´Kane & Al-Shehbaz |
| | Physaria newberryi A.Gray |
| | Physaria occidentalis (S.Watson) O´Kane & Al-Shehbaz |
| | Physaria parvula (Greene) O´Kane & Al-Shehbaz |
| | Physaria pendula (Rollins) O´Kane & Al-Shehbaz |
| | Physaria pinetorum (Wooton & Standl.) O´Kane & Al-Shehbaz |
| | Physaria prostrata (A.Nelson) O´Kane & Al-Shehbaz |
| | Physaria purpurea (A.Gray) O´Kane & Al-Shehbaz |
| | Physaria rectipes (Wooton & Standl.) O´Kane & Al-Shehbaz |
| | Physaria rubicundula (Rollins) S.L.Welsh |
| | Physaria subumbellata (Rollins) O´Kane & Al-Shehbaz |
| | Physaria tumulosa (Barneby) O‘Kane & Al-Shehbaz |
| | Physaria utahensis (Rydb.) O´Kane & Al-Shehbaz |
| | Physaria wardii (S.Watson) O´Kane & Al-Shehbaz |
| | Picradeniopsis absinthifolia (Benth.) B.G.Baldwin trib. Helenieae |
| | Picradeniopsis oppositifolia (Nutt.) Rydb. trib. Helenieae |
| | Picradeniopsis woodhousei (A.Gray) Rydb. trib. Helenieae |
| | Pinaropappus roseus (Less.) Less. trib. Cichorieae |
| | Pinguicula macroceras Pall. ex Link |
| | Plagiobothrys mollis (A.Gray) I.M.Johnst. |
| | Platyschkuhria integrifolia (A.Gray) Rydb. trib. Helenieae |
| | Pleiacanthus spinosus (Nutt.) Rydb. trib. Cichorieae |
| | Podistera eastwoodiae (J.M.Coult. & Rose) Mathias & Const. |
| | Podistera nevadensis (A.Gray) S.Watson |
| | Polemonium brandegeei (A.Gray) Greene |
| | Polemonium californicum Eastw. |
| | Polemonium carneum A.Gray |
| | Polemonium chartaceum H.Mason |
| | Polemonium delicatum Rydb. |
| | Polemonium eddyense Stubbs |
| | Polemonium elegans Greene |
| | Polemonium eximium Greene |
| | Polemonium nevadense Wherry |
| | Polemonium pauciflorum S.Watson |
| | Polemonium pulcherrimum Hook. |
| | Polemonium shastense Eastw. |
| | Polemonium viscosum Nutt. |
| | Polyctenium fremontii (S.Watson) Greene |
| | Polygonum paronychia Cham. & Schltdl. |
| | Polygonum shastense W.H.Brewer ex A.Gray |
| | Porophyllum pygmaeum D.J.Keil & Morefield trib. Tageteae |
| | Potentilla albiflora L.O.Williams |
| | Potentilla angelliaea N.H.Holmgren |
| | Potentilla argyrocoma (Rydb.) Jeps. |
| | Potentilla arizonica Greene |
| | Potentilla atrorubens Rydb. |
| | Potentilla baileyi (S.Watson) Greene |
| | Potentilla basaltica Tiehm & Ertter |
| | Potentilla beneolens (A.Nelson & J.F.Macbr.) P.M.Sl. |
| | Potentilla bicrenata Rydb. |
| | Potentilla bolanderi (A.Gray) Greene |
| | Potentilla brevifolia Nutt. |
| | Potentilla breweri S.Watson |
| | Potentilla brownii (Rydb.) P.M.Sl. |
| | Potentilla callida H.M.Hall |
| | Potentilla campestris (M.E.Jones) Jeps. |
| | Potentilla concinna Richardson |
| | Potentilla cottamii N.H.Holmgren |
| | Potentilla crinita A.Gray |
| | Potentilla cristae Ferlatte & Strother |
| | Potentilla cryptocaulis Clokey |
| | Potentilla daucifolia Greene |
| | Potentilla decurrens (S.Watson) Rydb. |
| | Potentilla demotica Ertter |
| | Potentilla douglasii Greene |
| | Potentilla drummondii Lehm. |
| | Potentilla effusa Douglas ex Lehm. |
| | Potentilla eremica Coville |
| | Potentilla flabellifolia Hook. ex Torr. & A.Gray |
| | Potentilla flavescens (Rydb.) P.M.Sl. |
| | Potentilla floraeana P.M.Sl. |
| | Potentilla glaucophylla Lehm. |
| | Potentilla gordonii (Hook.) Greene |
| | Potentilla grayi S.Watson |
| | Potentilla hendersonii (Howell) J.T.Howell |
| | Potentilla hickmanii Eastw. |
| | Potentilla hispidula (Rydb.) Jeps. |
| | Potentilla holmgrenii D.F.Murray & Elven |
| | Potentilla hookeriana Lehm. |
| | Potentilla howellii Greene |
| | Potentilla indicta (Jeps.) P.M.Sl. |
| | Potentilla jaegeri (Munz & I.M.Johnst.) L.C.Wheeler |
| | Potentilla janaeana P.M.Sl. |
| | Potentilla jepsonii Ertter |
| | Potentilla johnstonii Soják |
| | Potentilla kelloggii (Greene) Greene |
| | Potentilla kingii (S.Watson) Greene |
| | Potentilla lindleyi Greene |
| | Potentilla longibracteata (Ertter) Mosyakin & Shiyan |
| | Potentilla lycopodioides (A.Gray) Baill. ex J.T.Howell |
| | Potentilla macherieana P.M.Sl. |
| | Potentilla marinensis (Elmer) J.T.Howell |
| | Potentilla megalopetala (Rydb.) P.M.Sl. |
| | Potentilla micheneri Greene |
| | Potentilla millefolia Rydb. |
| | Potentilla morefieldii Ertter |
| | Potentilla muirii (A.Gray) Greene |
| | Potentilla multisecta (S.Watson) Rydb. |
| | Potentilla newberryi A.Gray |
| | Potentilla nivea L. |
| | Potentilla nubigena Greene |
| | Potentilla osterhoutii (A.Nelson) J.T.Howell |
| | Potentilla ostleri (Ertter) P.M.Sl. |
| | Potentilla ottonis P.M.Sl. |
| | Potentilla ovina Macoun |
| | Potentilla paniculata (T.W. & J.P.Nelson) Mosyakin & Shiyan |
| | Potentilla parryi (Greene) Greene |
| | Potentilla patellifera J.T.Howell |
| | Potentilla pensylvanica L. |
| | Potentilla pityocharis (Ertter) Mosyakin & Shiyan |
| | Potentilla plattensis Nutt. |
| | Potentilla proxima Rydb. |
| | Potentilla pseudocapitata (Rydb. ex Howell) P.M.Sl. |
| | Potentilla pseudosericea Rydb. |
| | Potentilla puberula Greene |
| | Potentilla purpurascens (S.Watson) Greene |
| | Potentilla ramulosa Rydb. |
| | Potentilla rhyolitica Ertter |
| | Potentilla rhypara (Ertter & Reveal) Mosyakin & Shiyan |
| | Potentilla rimicola (Munz & I.M.Johnst.) Ertter |
| | Potentilla rubricaulis Lehm. |
| | Potentilla sabulosa M.E.Jones |
| | Potentilla santolinoides (A.Gray) Greene |
| | Potentilla saxosa Lemmon ex Greene |
| | Potentilla scandularis (Rydb.) P.M.Sl. |
| | Potentilla sericata (S.Watson) Greene |
| | Potentilla sericoleuca (Rydb.) J.T.Howell |
| | Potentilla shockleyi (S.Watson) Jeps. |
| | Potentilla subviscosa Greene |
| | Potentilla thurberi A.Gray ex Lehm. |
| | Potentilla tilingii (Regel) Greene |
| | Potentilla tularensis J.T.Howell |
| | Potentilla unguiculata (A.Gray) Hook.f. |
| | Potentilla ursinorum (Jeps.) P.M.Sl. |
| | Potentilla utahensis (S.Watson) Greene |
| | Potentilla wasatchensis (N.H.Holm. ex Errt. & Reveal) P.M.Sl. |
| | Potentilla webberi (A.Gray) Greene |
| | Potentilla wheeleri S.Watson |
| | Potentilla wilderae (Parish) Munz & I.M.Johnst. |
| | Primula capillaris N.H.Holmgren & A.H.Holmgren sect. Parryi |
| | Primula clevelandii (Greene) A.R.Mast & Reveal |
| | Primula conjugens (Greene) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula cusickiana (A.Gray) A.Gray sect. Parryi |
| | Primula domensis Kass & S.L.Welsh sect. Parryi |
| | Primula fragrans A.R.Mast & Reveal sect. Dodecatheon |
| | Primula hendersonii (A.Gray) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula incana M.E.Jones sect. Farinosae |
| | Primula insularis (H.J.Thomps.) P.M.Sl. |
| | Primula jeffreyi (Van Houtte) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula maguirei L.O.Williams sect. Parryi |
| | Primula nevadensis N.H.Holmgren sect. Parryi |
| | Primula parryi A.Gray sect. Parryi |
| | Primula pauciflora (Durand) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula rusbyi Greene sect. Parryi |
| | Primula shoshonensis (A.Nelson) P.M.Sl. sect. Dodecatheon |
| | Primula specuicola Rydb. sect. Farinosae |
| | Primula standleyana A.R.Mast & Reveal sect. Dodecatheon |
| | Primula subalpina (Eastw.) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula suffrutescens A.Gray sect. Cuneifolia |
| | Primula superba (Pennell & Stair) P.M.Sl. sect. Dodecatheon |
| | Primula tetrandra (Suksd.) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula utahensis (N.H.Holmgren) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula zionensis (Eastw.) P.M.Sl. sect. Dodecatheon |
| | Psathyrotes ramosissima A.Gray |
| | Psilostrophe sparsiflora (A.Gray) A.Nelson trib. Helenieae |
| | Psilostrophe tagetina (Nutt.) Greene trib. Helenieae |
| | Pulsatilla nuttalliana (DC.) Bercht. & J.Presl |
| | Pulsatilla occidentalis (S.Watson) Freyn |
| | Pyrola asarifolia Michx. |
| | Pyrola bracteata Hook. |
| | Pyrola chlorantha Sw. |
| | Pyrola crypta Jolles |
| | Pyrola dentata Sm. |
| | Pyrola elliptica Nutt. |
| | Pyrola minor L. |
| | Pyrola picta Sm. |
| | Pyrrocoma apargioides Greene trib. Astereae |
| | Pyrrocoma clementis Rydb. trib. Astereae |
| | Pyrrocoma gossypina Greene trib. Astereae |
| | Pyrrocoma hirta (A.Gray) Greene trib. Astereae |
| | Pyrrocoma howellii (A.Gray) Greene trib. Astereae |
| | Pyrrocoma uniflora (Hook.) Greene trib. Astereae |
| | |
| | Raillardella argentea A.Gray trib. Madieae |
| | Raillardella scaposa A.Gray trib. Madieae |
| | Ranunculus adoneus A.Gray |
| | Ranunculus andersonii A.Gray |
| | Ranunculus californicus Benth. |
| | Ranunculus digitatus Hook. |
| | Ranunculus ellipticus Greene |
| | Ranunculus eschscholtzii Schltdl. |
| | Ranunculus eximius Greene |
| | Ranunculus fasciculatus Sessé & Moc. |
| | Ranunculus glaberrimus Hook. |
| | Ranunculus gormanii Greene |
| | Ranunculus hyperboreus Rottb. |
| | Ranunculus hystriculus A.Gray |
| | Ranunculus inamoenus Greene |
| | Ranunculus oxynotus A.Gray |
| | Ranunculus populago Greene |
| | Ranunculus pygmaeus Wahlenb. |
| | Ranunculus subaffinis (A.Gray) Rydb. |
| | Ranunculus suksdorfii A.Gray |
| | Ranunculus triternatus A.Gray |
| | Rhinotropis acanthoclada (A.Gray) J.R.Abbott |
| | Rhinotropis californica (Nutt.) J.R.Abbott |
| | Rhinotropis cornuta (Kellogg) J.R.Abbott |
| | Rhinotropis heterorhyncha (Barneby) J.R.Abbott |
| | Rhinotropis intermontana (T.Wendt) J.R.Abbott |
| | Rhinotropis lindheimeri (A.Gray) J.R.Abbott |
| | Rhinotropis parvifolia (Wheelock) P.M.Sl. |
| | Rhinotropis rusbyi (Greene) J.R.Abbott |
| | Rhinotropis subspinosa (S.Watson) J.R.Abbott |
| | Rhodiola integrifolia Raf. |
| | Rhodiola rhodantha (A.Gray) H.Jacobsen |
| | Rhysopterus plurijugus J.M.Coult. & Rose |
| | Romanzoffia californica Greene |
| | Romanzoffia sitchensis Bong. |
| | Romanzoffia tracyi Jeps. |
| | Rorippa subumbellata Rollins |
| | Rubus nivalis Douglas ex Hook. |
| | Rumex venosus Pursh |
| | |
| | Sabulina austromontana (S.J.Wolf & Packer) Dillenb. & Kad. |
| | Sabulina decumbens (T.W. & J.P.Nelson) Dillenb. & Kadereit |
| | Sabulina fragilis (Maguire & A.H.Holmgren) P.M.Sl. |
| | Sabulina gracilior P.M.Sl. |
| | Sabulina gregaria (A.Heller) P.M.Sl. |
| | Sabulina macrantha (Rydb.) Dillenb. & Kadereit |
| | Sabulina nuttallii (Pax) Dillenb. & Kadereit |
| | Sabulina rosei (Maguire & Barneby) Dillenb. & Kadereit |
| | Sabulina rubella (Wahlenb.) Dillenb. & Kadereit |
| | Sabulina stolonifera (T.W. & J.P.Nelson) Dillenb. & Kad. |
| | Sabulina stricta (Sw.) Rchb. |
| | Salix arizonica Dorn |
| | Salix atra Rydb. |
| | Salix boothii Dorn |
| | Salix brachycarpa Nutt. |
| | Salix cascadensis Cockerell |
| | Salix nivalis Hook. |
| | Salix petrophila Rydb. |
| | Salvia dorrii (Kellogg) Abrams |
| | Salvia sonomensis Greene |
| | Sanicula arctopoides Hook. & Arn. |
| | Sanicula laciniata Hook. & Arn. |
| | Sanicula saxatilis Greene |
| | Saxifraga austromontana Wiegand sect. Trachyphyllum |
| | Saxifraga cernua L. sect. Mesogyne |
| | Saxifraga cespitosa L. sect. Saxifraga |
| | Saxifraga chrysantha A.Gray sect. Ciliatae |
| | Saxifraga crandallii Gand. sect. Ciliatae |
| | Saxifraga debilis Engelm. ex A.Gray sect. Mesogyne |
| | Saxifraga hirculus L. sect. Ciliatae |
| | Saxifraga hyperborea R.Br. sect. Mesogyne |
| | Saxifragopsis fragarioides (Greene) Small |
| | Scabrethia scabra (Hook.) W.A.Weber trib. Heliantheae |
| | Schizotechium jamesianum (Torr.) Arabi, Rabeler & Zarre |
| | Scopulophila rixfordii (Brandegee) Munz & I.M.Johnst. |
| | Scutellaria angustifolia Pursh |
| | Scutellaria antirrhinoides Benth. |
| | Scutellaria bolanderi A.Gray |
| | Scutellaria nana A.Gray |
| | Scutellaria nevadensis Eastw. |
| | Scutellaria siphocampyloides Vatke |
| | Scutellaria tuberosa Benth. |
| | Sedum albomarginatum R.T.Clausen |
| | Sedum citrinum Zika |
| | Sedum cockerellii Britton |
| | Sedum debile S.Watson |
| | Sedum divergens S.Watson |
| | Sedum eastwoodiae (Britton) A.Berger |
| | Sedum heckneri M.Peck sect. Genuina |
| | Sedum lanceolatum Torr. |
| | Sedum laxum (Britton) A.Berger sect. Genuina |
| | Sedum monanthum Suksd. |
| | Sedum niveum Davidson |
| | Sedum oblanceolatum R.T.Clausen |
| | Sedum obtusatum A.Gray sect. Genuina |
| | Sedum oreganum Nutt. |
| | Sedum oregonense (S.Watson) M.E.Peck sect. Genuina |
| | Sedum paradisum (Denton) Denton ex B.L.Wilson |
| | Sedum pruinosum Britton |
| | Sedum spathulifolium Hook. |
| | Sedum stelliforme S.Watson sect. Mexicali |
| | Sedum stenopetalum Pursh |
| | Senecio blitoides Greene trib. Senecioneae |
| | Senecio fremontii Torr. & A.Gray trib. Senecioneae |
| | Senecio holmii Greene trib. Senecioneae |
| | Senecio inexpectatus (Cronquist) Al Schnneid. trib. Senecioneae |
| | Senecio occidentalis (A.Gray) Greene trib. Senecioneae |
| | Senecio pattersonensis Hoover trib. Senecioneae |
| | Senecio scorzonella Greene trib. Senecioneae |
| | Senega alba (Nutt.) J.F.B.Pastore & J.R.Abboott |
| | Senega hemipterocarpa (A.Gray) J.F.B.Pastore & J.R.Abbott |
| | Senega scoparioides (Chodat) J.F.B.Pastore & J.R.Abbott |
| | Sibbaldia procumbens L. |
| | Sidalcea multifida Greene |
| | Sidalcea pedata A.Gray |
| | Sidalcea ranunculacea Greene |
| | Silene acaulis (L.) Jacq. |
| | Silene aperta Greene |
| | Silene bernardina S.Watson |
| | Silene bolanderi A.Gray |
| | Silene californica Durand |
| | Silene douglasii Hook. |
| | Silene grayi S.Watson |
| | Silene greenei (S.Watson ex B.L.Rob.) Howell |
| | Silene greggii A.Gray |
| | Silene hitchguirei Bocquet |
| | Silene hookeri Nutt. |
| | Silene invisa C.L.Hitchc. & Maguire |
| | Silene kingii (S.Watson) Bocquet |
| | Silene laciniata Cav. |
| | Silene lemmonii S.Watson |
| | Silene menziesii Hook. |
| | Silene nachlingerae A.Tiehm |
| | Silene oregana S.Watson |
| | Silene parishii S.Watson |
| | Silene petersonii Maguire |
| | Silene salmonacea T.W.Nelson & al. |
| | Silene sargentii S.Watson |
| | Silene serpentinicola T.W.Nelson & J.P.Nelson |
| | Silene suksdorfii B.L.Rob. |
| | Silene uralensis (Rupr.) Bocquet |
| | Smelowskia americana (Regel & Herder) Rydb. |
| | Smelowskia ovalis M.E.Jones |
| | Smithiastrum wilkinsianum (Greene) Morin |
| | Solidago multiradiata Aiton trib. Astereae |
| | Solidago nana Nutt. trib. Astereae |
| | Solidago spathulata DC. trib. Astereae |
| | Sphaeralcea caespitosa M.E.Jones |
| | Sphaeralcea coccinea (Nutt.) Rydb. |
| | Sphaeralcea eremicola Jeps. |
| | Sphaeralcea hastulata A.Gray |
| | Sphaeralcea leptophylla (A.Gray) Rydb. |
| | Sphaeralcea munroana (Douglas ex Lindl.) Spach ex A.Gray |
| | Sphaeralcea parvifolia A.Nelson |
| | Sphaeralcea psoraloides S.L.Welsh |
| | Sphaeralcea rusbyi A.Gray |
| | Stachys rothrockii A.Gray |
| | Stellaria irrigua Bunge |
| | Stellaria porsildii C.C.Chinnappa |
| | Stenotus acaulis (Nutt.) Nutt. trib. Astereae |
| | Stenotus armerioides Nutt. trib. Astereae |
| | Stenotus gramineus (S.L.Welsh & F.J.Sm.) P.M.Sl. trib. Astereae |
| | Stephanomeria lactucina A.Gray trib. Cichorieae |
| | Stephanomeria parryi A.Gray trib. Cichorieae |
| | Stephanomeria runcinata Nutt. trib. Cichorieae |
| | Swertia perennis L. |
| | Symphyotrichum apricum (A.Gray) P.M.Sl. trib. Astereae |
| | Symphyotrichum campestre (Nutt.) G.L.Nesom trib. Astereae |
| | Symphyotrichum parryi (D.C.Eaton) P.M.Sl. trib. Astereae |
| | Symphyotrichum potosinum (A.Gray) G.L.Nesom trib. Astereae |
| | |
| | Tanacetum bipinnatum (L.) Sch.Bip. trib. Anthemideae |
| | Taraxacum californicum Munz & I.M.Johnst. trib. Cichorieae |
| | Taraxacum ceratophorum (Ledeb.) DC. trib. Cichorieae |
| | Taraxacum scopulorum (A.Gray) Rydb. trib. Cichorieae |
| | Taraxia breviflora (Torr. & A.Gray) Nutt. ex Small |
| | Taraxia ovata (Nutt.) Small |
| | Taraxia subacaulis (Pursh) Rydb. |
| | Taraxia tanacetifolia (Torr. & A.Gray) Piper |
| | Tauschia howellii (J.M.Coult. & Rose) J.F.Macbr. |
| | Telesonix heucheriformis (Rydb.) Rydb. |
| | Tellima grandiflora (Pursh) Douglas ex Lindl. |
| | Tetradymia canescens DC. trib. Senecioneae |
| | Tetraneuris argentea Greene trib. Helenieae |
| | Tetraneuris arizonica Greene trib. Helenieae |
| | Tetraneuris epunctata A.Nelson trib. Helenieae |
| | Tetraneuris ivesiana Greene trib. Helenieae |
| | Tetraneuris torreyana (Nutt.) Greene trib. Helenieae |
| | Tetraneuris verdiensis R.A.Denham & B.L.Turner trib. Helenieae |
| | Teucrium laciniatum Torr. |
| | Thalictrum alpinum L. |
| | Thelesperma subnudum A.Gray trib. Coreopsidae |
| | Thermopsis rhombifolia (Pursh) Richardson trib. Thermopsideae |
| | Thymophylla acerosa (DC.) Strother |
| | Tiarella trifoliata L. |
| | Tiarella unifoliata Hook. |
| | Tiquilia canescens (DC.) A.T.Richardson |
| | Tiquilia latior (I.M.Johnst.) A.T.Richardson |
| | Tiquilia palmeri (A.Gray) A.T.Richardson |
| | Tiquilia plicata (Torr.) A.T.Richardson |
| | Toiyabea alpina (L.C.Anderson & Goodrich) R.P.Roberts & al. trib. Astereae |
| | Toiyabea eximia (H.M.Hall) G.L.Nesom trib. Astereae |
| | Toiyabea granitica (Tiehm & L.M.Schultz) G.L.Nesom trib. Astereae |
| | Toiyabea peirsonii (D.D.Keck) G.L.Nesom trib. Astereae |
| | Tonestus lyallii A.Nelson trib. Astereae |
| | Townsendia aprica S.L.Welsh & Reveal trib. Astereae |
| | Townsendia condensata Parry trib. Astereae |
| | Townsendia exscapa (Richardson) Porter trib. Astereae |
| | Townsendia florifera (Hook.) A.Gray trib. Astereae |
| | Townsendia formosa Greene trib. Astereae |
| | Townsendia hookeri Beaman trib. Astereae |
| | Townsendia incana Nutt. trib. Astereae |
| | Townsendia jonesii (Beaman) Reveal trib. Astereae |
| | Townsendia leptotes (A.Gray) Osterh. trib. Astereae |
| | Townsendia mensana M.E.Jones trib. Astereae |
| | Townsendia minima Eastw. trib. Astereae |
| | Townsendia montana M.E.Jones trib. Astereae |
| | Townsendia parryi Eaton trib. Astereae |
| | Townsendia scapigera D.C.Eaton trib. Astereae |
| | Townsendia smithii L.M.Shultz & A.H.Holmgren trib. Astereae |
| | Townsendia strigosa Nutt. trib. Astereae |
| | Tricardia watsonii Torr. ex S.Watson |
| | Trifolium andersonii A.Gray trib. Trifolieae |
| | Trifolium andinum Nutt. trib. Trifolieae |
| | Trifolium atrorubens (Greene) House trib. Trifolieae |
| | Trifolium beckwithii W.H.Brewer ex S.Watson trib. Trifolieae |
| | Trifolium bolanderi A.Gray trib. Trifolieae |
| | Trifolium dedeckerae J.M.Gillett trib. Trifolieae |
| | Trifolium elmeri Greene trib. Trifolieae |
| | Trifolium eriocephalum Nutt. trib. Trifolieae |
| | Trifolium friscanum (S.L.Welsh) S.L.Welsh trib. Trifolieae |
| | Trifolium grantianum A.Heller trib. Trifolieae |
| | Trifolium gymnocarpon Nutt. trib. Trifolieae |
| | Trifolium hansenii Greene trib. Trifolieae |
| | Trifolium harneyensis Howell trib. Trifolieae |
| | Trifolium haydenii Porter trib. Trifolieae |
| | Trifolium lemmonii S.Watson trib. Trifolieae |
| | Trifolium macrocephalum (Pursh) Poir. trib. Trifolieae |
| | Trifolium monanthum A.Gray trib. Trifolieae |
| | Trifolium monoense Greene trib. Trifolieae |
| | Trifolium montanense Rydb. trib. Trifolieae |
| | Trifolium multipedunculatum P.B.Kenn. trib. Trifolieae |
| | Trifolium nanum Torr. trib. Trifolieae |
| | Trifolium neurophyllum Greene trib. Trifolieae |
| | Trifolium oreganum Howell trib. Trifolieae |
| | Trifolium parvum (Kellogg) A.Heller trib. Trifolieae |
| | Trifolium rollinsii J.M.Gillet trib. Trifolieae |
| | Trifolium rusbyi Greene trib. Trifolieae |
| | Trifolium rydbergii Greene trib. Trifolieae |
| | Trifolium shastense House trib. Trifolieae |
| | Trifolium tenerum Eastw. trib. Trifolieae |
| | Trifolium uintense Rydb. trib. Trifolieae |
| | Trifolium villiferum House trib. Trifolieae |
| | Trollius albiflorus (A.Gray) Rydb. |
| | |
| | Vaccinium cespitosum Michx. |
| | Vaccinium deliciosum Piper |
| | Vaccinium membranaceum Douglas ex Torr. |
| | Vaccinium oxycoccos L. |
| | Vaccinium scoparium Leiberg ex Coville |
| | Valeriana arizonica A.Gray |
| | Vancouveria chrysantha Greene |
| | Vancouveria hexandra C.Morren & Decne. |
| | Vancouveria planipetala Calloni |
| | Verbena bipinnatifida Schauer |
| | Veronica besseya M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica californica M.M.Mart.Ort. & Albach |
| | Veronica copelandii Eastw. subgen. Veronica |
| | Veronica cusickii A.Gray subgen. Veronica |
| | Veronica missurica Raf. subgen. Synthyris |
| | Veronica paysonii (Pennell) M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica plantaginea E.James subgen. Synthyris |
| | Veronica ranunculina (Pennell) M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica regina-nivalis M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica utahensis M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica wormskjoldii Roem. & Schult. subgen. Veronica |
| | Veronica wyomingensis (A.Nelson) M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Vesper bulbosus (A.Nelson) R.L.Hartm. & G.L.Nesom |
| | Vesper multinervatus (J.M.Coult. & Rose) R.L.Hartm. |
| | Vesper purpurascens (A.Gray) R.L.Hartm. & G.L.Nesom |
| | Viola adunca Sm. sect. Viola |
| | Viola aurea Kellogg |
| | Viola bakeri Greene |
| | Viola beckwithii Torr. & A.Gray sect. Viola |
| | Viola canadensis L. sect. Viola |
| | Viola charlestonensis M.S.Baker & J.C.Clausen |
| | Viola clauseniana M.S.Baker |
| | Viola cuneata S.Watson sect. Viola |
| | Viola douglasii Steud. sect. Viola |
| | Viola flavovirens Pollard |
| | Viola frank-smithii N.H.Holmgren sect. Chamaemelanium |
| | Viola glabella Nutt. sect. Chamaemelanium |
| | Viola hallii A.Gray sect. Chamaemelanium |
| | Viola howellii A.Gray |
| | Viola langsdorfii Fisch. ex Ging. sect. Viola |
| | Viola linguifolia Nutt. |
| | Viola lithion N.H.Holmgren & P.K.Holmgren |
| | Viola lobata Benth. sect. Viola |
| | Viola macloskeyi F.E.Lloyd sect. Viola |
| | Viola nephrophylla Greene sect. Viola |
| | Viola nuttallii Pursh sect. Viola |
| | Viola occidentalis (A.Gray) Howell sect. Viola |
| | Viola ocellata Torr. & A.Gray sect. Viola |
| | Viola pedatifida G.Don sect. Viola |
| | Viola pedunculata Torr. & A.Gray sect. Viola |
| | Viola pinetorum Greene |
| | Viola praemorsa Douglas |
| | Viola purpurea Kellogg |
| | Viola quercetorum M.S.Baker & J.C.Clausen |
| | Viola rugulosa Greene sect. Viola |
| | Viola scopulorum (A.Gray) Greene sect. Viola |
| | Viola sempervirens Greene sect. Viola |
| | Viola sheltonii Torr. sect. Viola |
| | Viola sororia Willd. sect. Viola |
| | Viola tomentosa M.S.Baker & J.C.Clausen |
| | Viola umbraticola Kunth |
| | Viola utahensis M.S.Baker & J.C.Clausen |
| | Viola venosa (S.Watson) Rydb. |
| | |
| | Whipplea modesta Torr. |
| | Wyethia angustifolia (DC.) Nutt. trib. Heliantheae |
| | Wyethia arizonica A.Gray trib. Heliantheae |
| | Wyethia glabra A.Gray trib. Heliantheae |
| | Wyethia helenioides (DC.) Nutt. trib. Heliantheae |
| | Wyethia helianthoides Nutt. trib. Heliantheae |
| | Wyethia mollis A.Gray trib. Heliantheae |
| | Wyethia sagittata (Pursh) Mabb. trib. Heliantheae |
| | |
| | Xanthisma grindelioides (Nutt.) D.R.Morgan & R.L.Hartm. trib. Astereae |
| | Xylorhiza confertifolia (Cronquist) T.J.Watson trib. Astereae |
| | Xylorhiza cronquistii S.L.Welsh & N.D.Atwood trib. Astereae |
| | Xylorhiza glabriuscula Nutt. trib. Astereae |
| | Xylorhiza linearifolia (T.J.Watson) G.L.Nesom trib. Astereae |
| | Xylorhiza venusta A.Heller trib. Astereae |
| | |
| | Zinnia acerosa (DC.) A.Gray trib. Heliantheae |
| | Zinnia grandiflora Nutt. trib. Heliantheae |