| | |
| | Abronia elliptica A.Nelson |
| | Abronia fragrans Nutt. ex Hook. |
| | Abronia nana S.Watson |
| | Actaea rubra (Aiton) Willd. |
| | Agoseris aurantiaca (Hook.) Greene trib. Cichorieae |
| | Agoseris glauca (Pursh) Raf. trib. Cichorieae |
| | Agoseris parviflora (Nutt.) D.Dietr. trib. Cichorieae |
| | Agoseris purpurea (A.Gray) Greene |
| | Aletes humilis J.M.Coult. & Rose |
| | Aliciella pentstemonoides (M.E.Jones) J.M.Porter |
| | Aliciella stenothyrsa (A.Gray) J.M.Porter |
| | Aliciella subnuda (Torr. ex A.Gray) J.M.Porter |
| | Amorpha nana C.Fraser trib. Psoraleeae |
| | Amsonia jonesii Woodson trib. Vinceae |
| | Androsace lehmanniana Spreng. sect. Chamaejasme |
| | Anemonastrum canadense (L.) Mosyakin |
| | Anemonastrum zephyrum (A.Nelson) Holub |
| | Anemone cylindrica A.Gray |
| | Anemone hudsoniana (DC.) Richardson |
| | Anemone parviflora Michx. |
| | Antennaria anaphaloides Rydb. 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 howellii Greene trib. Gnaphalieae |
| | Antennaria luzuloides Torr. & Gray trib. Gnaphalieae |
| | Antennaria marginata Greene trib. Gnaphalieae |
| | Antennaria media Greene trib. Gnaphalieae |
| | Antennaria microphylla Rydb. trib. Gnaphalieae |
| | Antennaria neglecta Greene trib. Gnaphalieae |
| | Antennaria neodioica Greene trib. Gnaphalieae |
| | Antennaria parvifolia Nutt. trib. Gnaphalieae |
| | Antennaria petaloidea Fernald trib. Gnaphalieae |
| | Antennaria pulcherrima (Hook.) Greene trib. Gnaphalieae |
| | Antennaria pulvinata Greene trib. Gnaphalieae |
| | Antennaria rosea Greene trib. Gnaphalieae |
| | Antennaria rosulata Rydb. trib. Gnaphalieae |
| | Antennaria umbrinella Rydb. trib. Gnaphalieae |
| | Aquilegia barnebyi Munz |
| | Aquilegia chrysantha A.Gray |
| | Aquilegia coerulea E.James |
| | Aquilegia elegantula Greene |
| | Aquilegia micrantha Eastw. |
| | Aquilegia saximontana Rydb. |
| | Arctostaphylos uva-ursi (L.) Spreng. |
| | Arenaria saxosa A.Gray |
| | Armeria sibirica Turcz. ex Boiss. |
| | Arnica chamissonis Less. trib. Heliantheae |
| | Arnica cordifolia Hook. trib. Heliantheae |
| | Arnica fulgens Pursh trib. Heliantheae |
| | Arnica latifolia Bong. trib. Heliantheae |
| | Arnica parryi A.Gray trib. Heliantheae |
| | Arnica rydbergii Greene trib. Heliantheae |
| | Artemisia arbuscula Nutt. trib. Anthemideae |
| | Artemisia borealis Pall. trib. Anthemideae |
| | Artemisia cana Pursh trib. Anthemideae |
| | Artemisia capitata (Nutt.) Són.Garcia & al. trib. Anthemideae |
| | Artemisia carruthii Alph.Wood ex J.H.Carruth trib. Anthemideae |
| | Artemisia frigida Willd. trib. Anthemideae |
| | Artemisia longiloba (Osterh.) Beetle trib. Anthemideae |
| | Artemisia nova A.Nelson trib. Anthemideae |
| | Artemisia nuttallii (Torr. & A.Gray) Mosyakin & al. trib. Anthemideae |
| | Artemisia parryi A.Gray trib. Anthemideae |
| | Artemisia pedatifida Nutt. trib. Anthemideae |
| | Artemisia pygmaea A.Gray 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 |
| | Asclepias cryptoceras S.Watson trib. Asclepiadeae |
| | Asclepias uncialis Greene trib. Asclepiadeae |
| | Askellia pygmaea (Ledeb.) Sennikov trib. Cichorieae |
| | Aster culminis A.Nelson trib. Astereae |
| | Astragalus aboriginorum Richardson trib. Galegeae |
| | Astragalus agrestis Douglas ex G.Don sect. Hypoglottidei |
| | Astragalus alpinus L. sect. Komaroviella |
| | Astragalus amphioxys A.Gray trib. Galegeae |
| | Astragalus anisus M.E.Jones trib. Galegeae |
| | Astragalus aretioides (M.E.Jones) Barneby |
| | Astragalus bodinii E.Sheld. trib. Galegeae |
| | Astragalus brandegeei Porter & J.M.Coulter trib. Galegeae |
| | Astragalus calycosus Torr. ex S.Watson |
| | Astragalus ceramicus E.Sheld. trib. Galegeae |
| | Astragalus cerussatus E.Sheld. trib. Galegeae |
| | Astragalus chamaeleuce A.Gray |
| | Astragalus chloodes Barneby |
| | Astragalus cibarius E.Sheld. |
| | Astragalus cottamii S.L.Welsh trib. Galegeae |
| | Astragalus crassicarpus Nutt. |
| | Astragalus cronquistii Barneby |
| | Astragalus desperatus M.E.Jones trib. Galegeae |
| | Astragalus deterior (Barneby) Barneby |
| | 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 eucosmus B.L.Rob. sect. Malacothrix |
| | Astragalus filifolius A.Gray trib. Galegeae |
| | Astragalus flavus Nutt. |
| | Astragalus gilviflorus E.Sheld. trib. Galegeae |
| | Astragalus hallii A.Gray |
| | Astragalus hamiltonii Ced.Porter trib. Galegeae |
| | Astragalus humillimus A.Gray |
| | Astragalus humistratus A.Gray trib. Galegeae |
| | Astragalus hyalinus M.E.Jones |
| | Astragalus impensus (E.Sheld.) Wooton & Standl. trib. Galegeae |
| | Astragalus iodopetalus (Rydb.) Greene ex Barneby trib. Galegeae |
| | Astragalus jejunus S.Watson |
| | Astragalus kentrophyta A.Gray trib. Galegeae |
| | Astragalus leptaleus A.Gray trib. Galegeae |
| | Astragalus lotiflorus Hook. trib. Galegeae |
| | Astragalus lutosus M.E.Jones trib. Galegeae |
| | Astragalus megacarpus (Nutt.) A.Gray |
| | Astragalus merrillii (Rydb.) Tidestr. trib. Galegeae |
| | Astragalus missouriensis Nutt. trib. Galegeae |
| | Astragalus mollissimus Torr. trib. Galegeae |
| | Astragalus molybdenus Barneby |
| | Astragalus musiniensis M.E.Jones |
| | Astragalus naturitensis Payson |
| | Astragalus nelsonianus Barneby |
| | Astragalus newberryi A.Gray trib. Galegeae |
| | Astragalus oophorus S.Watson trib. Galegeae |
| | Astragalus palans M.E.Jones trib. Galegeae |
| | Astragalus parryi A.Gray |
| | Astragalus pectinatus (Hook.) Douglas ex G.Don trib. Galegeae |
| | Astragalus piscator Barneby & S.L.Welsh trib. Galegeae |
| | Astragalus plattensis Nutt. trib. Galegeae |
| | Astragalus preussii A.Gray |
| | Astragalus proximus (Rydb.) Wooton & Standl. trib. Galegeae |
| | Astragalus prunifer Rydb. |
| | Astragalus pubentissimus Torr. & A.Gray |
| | Astragalus purshii Douglas ex G.Don trib. Galegeae |
| | Astragalus rydbergii J.F.Macbr. trib. Galegeae |
| | Astragalus scaposus A.Gray |
| | Astragalus schmolliae Cedr.Porter trib. Galegeae |
| | Astragalus sericoleucus A.Gray trib. Galegeae |
| | Astragalus sesquiflorus S.Watson trib. Galegeae |
| | Astragalus shortianus Nutt. |
| | Astragalus sparsiflorus A.Gray |
| | Astragalus spatulatus E.Sheld. |
| | Astragalus striatus Nutt. sect. Onobrychoidei |
| | Astragalus tegetarius S.Watson trib. Galegeae |
| | Astragalus thompsoniae S.Watson trib. Galegeae |
| | Astragalus tridactylicus A.Gray trib. Galegeae |
| | Astragalus vespertinus E.Sheld. trib. Galegeae |
| | Astragalus wetherillii M.E.Jones |
| | Astragalus wingatanus S.Watson |
| | Atriplex confertifolia (Torr. & Frémont) S.Watson |
| | Atriplex corrugata S.Watson |
| | |
| | Balsamorhiza hispidula W.M.Sharp trib. Heliantheae |
| | Berberis repens Lindl. |
| | Betula glandulosa Michx. |
| | Betula pumila L. |
| | Bistorta vivipara (L.) Delarbre |
| | Boechera centrifendleri P.J.Alexander |
| | Boechera crandallii (B.L.Rob.) W.A.Weber |
| | Boechera drepanoloba (Greene) Windham & Al-Shehbaz |
| | Boechera duchesnensis (Rollins) Windham & al. |
| | Boechera fendleri (S.Watson) W.A.Weber |
| | Boechera gunnisoniana (Rollins) W.A.Weber |
| | Boechera lemmonii (S.Watson) W.A.Weber |
| | Boechera oxylobula (Greene) W.A.Weber |
| | Boechera pendulina (Greene) W.A.Weber |
| | Boechera spatifolia (Rydb.) Windham & Al-Shehbaz |
| | Boechera vivariensis (S.L.Welsh) W.A.Weber |
| | Braya glabella Richardson |
| | Brickellia atractyloides A.Gray trib. Eupatorieae |
| | Brickellia linifolia D.C.Eaton trib. Eupatorieae |
| | Brickellia microphylla (Nutt.) A.Gray trib. Eupatorieae |
| | |
| | Callirhoe involucrata (Torr. & A.Gray) A.Gray |
| | Calyptridium umbellatum (Torr.) Greene |
| | Campanula parryi A.Gray |
| | Cardamine breweri S.Watson |
| | Castilleja flava S.Watson |
| | Castilleja haydenii (A.Gray) Cockerell |
| | Castilleja integra A.Gray |
| | Castilleja miniata Douglas ex Hook. |
| | Castilleja occidentalis Torr. |
| | Castilleja puberula Rydb. |
| | Castilleja rhexiifolia Rydb. |
| | Castilleja scabrida Eastw. |
| | Ceanothus fendleri A.Gray |
| | Ceanothus martini M.E.Jones |
| | Cerastium beeringianum Cham. & Schltdl. |
| | Chaenactis alpina (A.Gray) M.E.Jones |
| | Chaenactis douglasii Hook. & Arn. trib. Helenieae |
| | Chaetopappa ericoides (Torr.) G.L.Nesom trib. Astereae |
| | Chamaechaenactis scaposa Rydb. trib. Helenieae |
| | Chamaerhodos erecta (L.) Bunge |
| | Cherleria obtusiloba (Rydb.) A.J.Moore & Dillenb. |
| | Chimaphila umbellata (L.) W.P.C.Barton |
| | Chionophila jamesii Benth. trib. Cheloneae |
| | Chrysothamnus axillaris D.D.Keck trib. Astereae |
| | Chrysothamnus depressus (Nutt.) L.C.Anderson trib. Astereae |
| | Chrysothamnus lanceolatus Nutt. trib. Astereae |
| | Chrysothamnus vaseyi Greene trib. Astereae |
| | Chrysothamnus viscidiflorus Nutt. trib. Astereae |
| | Cirsium tioganum (Congdon) Petr. trib. Cardueae |
| | Claytonia lanceolata Pursh |
| | Claytonia megarhiza (A.Gray) Parry ex S.Watson |
| | Claytonia rosea Rydb. |
| | Clematis columbiana (Nutt.) Torr. & A.Gray |
| | Clematis grosseserrata (Rydb.) Ackerf. |
| | Clematis hirsutissima Pursh |
| | Clematis scottii Porter |
| | Clematis tenuiloba (A.Gray) C.L.Hitchc. |
| | Conimitella williamsii (D.C.Eaton) Rydb. |
| | Cornus canadensis L. |
| | Crepis modocensis Greene trib. Cichorieae |
| | Crepis occidentalis Nutt. trib. Cichorieae |
| | Crocanthemum bicknellii (Fernald) Janchen |
| | Cymopterus albiflorus Torr. & A.Gray |
| | Cymopterus alpinus A.Gray |
| | Cymopterus anisatus A.Gray |
| | Cymopterus bakeri (J.M.Coult. & Rose) M.E.Jones |
| | Cymopterus duchesnensis M.E.Jones |
| | Cymopterus fendleri A.Gray |
| | Cymopterus glomeratus (Nutt.) DC. |
| | Cymopterus hallii (A.Gray) B.L.Turner |
| | Cymopterus hendersonii (J.M.Coult. & Rose) Cronquist |
| | Cymopterus humilis (Raf.) Tidestr, |
| | Cymopterus lemmonii (J.M.Coult. & Rose) Dorn |
| | Cymopterus longipes S.Watson |
| | Cymopterus petraeus M.E.Jones |
| | Cymopterus purpureus S.Watson |
| | Cymopterus sessiliflorus (W.L.Theob. & C.C.Tseng) R.L.Hartm. |
| | |
| | Dalea arenicola (Wemple) B.L.Turner trib. Amorpheae |
| | Dalea aurea Nutt. ex Pursh trib. Amorpheae |
| | Dalea formosa Torr. trib. Amorpheae |
| | Dalea jamesii (Torr.) Torr. & A.Gray trib. Amorpheae |
| | Dalea nana Torr. ex A.Gray trib. Amorpheae |
| | Dalea oligophylla (Torr.) Shinners trib. Amorpheae |
| | Dalea purpurea Vent. trib. Amorpheae |
| | Dalea tenuifolia (A.Gray) Shinners trib. Amorpheae |
| | Dalea villosa (Nutt.) Spreng. trib. Amorpheae |
| | Dasiphora fruticosa (L.) Rydb. |
| | Delphinium alpestre Rydb. |
| | Delphinium nuttallianum Pritz. ex Walp. |
| | Delphinium scaposum Greene |
| | Delwiensia pattersonii (A.Gray) W.A.Weber & R.C.Wittmann trib. Anthemideae |
| | Descurainia kenheilii Al-Shehbaz |
| | Draba albertina Greene |
| | Draba aurea Vahl ex Hornem. sect. Phyllodraba |
| | Draba cana Rydb. |
| | Draba crassa Rydb. sect. Phyllodraba |
| | Draba crassifolia Graham |
| | Draba exunguiculata (O.E.Schulz) C.L.Hitchc. sect. Phyllodraba |
| | Draba fladnizensis Wulfen sect. Leucodraba |
| | Draba globosa Payson |
| | Draba graminea Greene sect. Phyllodraba |
| | Draba grayana (Rydb.) C.L.Hitchc. |
| | Draba incerta Payson |
| | Draba lonchocarpa Rydb. sect. Leucodraba |
| | Draba malpighiacea Windham & Al-Shehbaz |
| | Draba oligosperma Hook. sect. Chrysodraba |
| | Draba pectinipila Rollins |
| | Draba porsildii G.A.Mulligan |
| | Draba smithii Gilg ex O.E.Schulz sect. Phyllodraba |
| | Draba spectabilis Greene sect. Phyllodraba |
| | Draba streptobrachia R.A.Price |
| | Draba streptocarpa A.Gray sect. Phyllodraba |
| | Draba ventosa A.Gray sect. Chrysodraba |
| | Draba weberi R.A.Price & Rollins |
| | Dryas hookeriana Juz. |
| | Drymocallis arguta (Pursh) Rydb. |
| | Drymocallis fissa (Nutt.) Rydb. |
| | |
| | Encelia nutans Eastw. trib. Heliantheae |
| | Epilobium anagallidifolium Lam. |
| | Epilobium clavatum Trel. |
| | Epilobium hallianum Hausskn. |
| | Epilobium lactiflorum Hausskn. |
| | Epilobium latifolium L. |
| | Epilobium oregonense Hausskn. |
| | Epilobium saximontanum Hausskn. |
| | Eremogone congesta (Nutt.) Ikonn. |
| | Eremogone eastwoodiae (Rydb.) Ikonn. |
| | Eremogone fendleri (A.Gray) Ikonn. |
| | Eremogone hookeri (Nutt.) W.A.Weber |
| | Eremogone lithophila (Rydb.) P.M.Sl. |
| | Eremogone pinetorum (A.Nelson) P.M.Sl. |
| | Ericameria discoidea (Nutt.) G.L.Nesom trib. Astereae |
| | Erigeron aphanactis Greene trib. Astereae |
| | Erigeron caespitosus Nutt. trib. Astereae |
| | Erigeron canus A.Gray trib. Astereae |
| | Erigeron compositus Pursh trib. Astereae |
| | Erigeron concinnus (Hook. & Arn.) Torr. & A.Gray trib. Astereae |
| | Erigeron consimilis Cronquist trib. Astereae |
| | Erigeron coulteri Porter & J.M.Coult. trib. Astereae |
| | Erigeron eatonii A.Gray trib. Astereae |
| | Erigeron engelmannii A.Nelson trib. Astereae |
| | Erigeron flagellaris A.Gray trib. Astereae |
| | Erigeron formosissimus Greene trib. Astereae |
| | Erigeron glabellus Nutt. trib. Astereae |
| | Erigeron glacialis (Nutt.) A.Nelson trib. Astereae |
| | Erigeron grandiflorus Hook. trib. Astereae |
| | Erigeron humilis Graham trib. Astereae |
| | Erigeron kachinensis S.L.Welsh & Gl.Moore trib. Astereae |
| | Erigeron lanatus Hook. trib. Astereae |
| | Erigeron leiomerus A.Gray trib. Astereae |
| | Erigeron melanocephalus A.Nelson trib. Astereae |
| | Erigeron nematophyllus Rydb. trib. Astereae |
| | Erigeron nivalis Nutt. trib. Astereae |
| | Erigeron pinnatisectus (A.Gray) A.Nelson trib. Astereae |
| | Erigeron pulcherrimus A.Heller trib. Astereae |
| | Erigeron pumilus Nutt. trib. Astereae |
| | Erigeron radicatus Hook. trib. Astereae |
| | Erigeron ursinus D.C.Eaton trib. Astereae |
| | Erigeron utahensis A.Gray trib. Astereae |
| | Erigeron vagus Payson trib. Astereae |
| | Erigeron vetensis Rydb. trib. Astereae |
| | Erigeron wilkenii O´Kane trib. Astereae |
| | Eriogonum acaule Nutt. sect. Eucycla |
| | Eriogonum arcuatum Greene sect. Oligogonum |
| | Eriogonum batemanii M.E.Jones sect. Eucycla |
| | Eriogonum bicolor M.E.Jones sect. Eucycla |
| | Eriogonum brandegeei Rydb. sect. Eucycla |
| | Eriogonum brevicaule Nutt. sect. Eucycla |
| | Eriogonum clavellatum Small sect. Eucycla |
| | Eriogonum coloradense Small sect. Eucycla |
| | Eriogonum contortum Small sect. Eucycla |
| | Eriogonum corymbosum Benth. sect. Eucycla |
| | Eriogonum effusum Nutt. sect. Eucycla |
| | Eriogonum ephedroides Reveal sect. Eucycla |
| | Eriogonum exilifolium Reveal sect. Eucycla |
| | Eriogonum flavum Nutt. ex Benth. sect. Oligogonum |
| | Eriogonum heracleoides Nutt. sect. Oligogonum |
| | Eriogonum jamesii Benth. sect. Oligogonum |
| | Eriogonum lachnogynum Torr. ex Benth. sect. Eucycla |
| | Eriogonum laxiflorum (Hook.) Nutt. ex Benth. |
| | Eriogonum leptophyllum (Torr.) Wooton & Standl. sect. Eucycla |
| | Eriogonum lonchophyllum Torr. & A.Gray sect. Eucycla |
| | Eriogonum ovalifolium Nutt. sect. Eucycla |
| | Eriogonum pauciflorum Pursh sect. Eucycla |
| | Eriogonum pelinophilum Reveal sect. Eucycla |
| | Eriogonum porteri Small sect. Oligogonum |
| | Eriogonum purpureum (Nutt.) Nutt. ex Benth. sect. Eucycla |
| | Eriogonum racemosum Nutt. sect. Eucycla |
| | Eriogonum shockleyi S.Watson sect. Eucycla |
| | Eriogonum simpsonii Benth. |
| | Eriogonum subalpinum Greene sect. Oligogonum |
| | Eriogonum tumulosum (Barneby) Reveal sect. Eucycla |
| | Eriogonum umbellatum Torr. sect. Oligogonum |
| | Eriogonum xanthum Small sect. Oligogonum |
| | Eritrichium argenteum W.Wight |
| | Erocallis triphylla (S.Watson) Rydb. sect. Pygmaea |
| | Erysimum amoenum (Greene) Rydb. |
| | Erysimum capitatum (Douglas) Greene |
| | 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 minor (A.Nelson) G.L.Nesom |
| | Erythranthe moschata (Douglas ex Lindl.) G.L.Nesom |
| | Erythranthe tilingii (Regel) G.L.Nesom |
| | Erythranthe utahensis (Pennell) G.L.Nesom |
| | Euphorbia albomarginata Torr. & Gray |
| | Euphorbia brachycera Engelm. |
| | Euphorbia fendleri Torr. & A.Gray |
| | Evolvulus nuttallianus Roem. & Schult. |
| | |
| | Fallugia paradoxa (D.Don ex Tilloch) Endl. ex Torr. |
| | Frasera albomarginata S.Watson |
| | Frasera coloradensis (C.M.Rodgers) D.M.Post |
| | |
| | Gaillardia aristata Pursh trib. Heliantheae |
| | Gaillardia pinnatifida Torr. trib. Heliantheae |
| | Gaillardia spathulata A.Gray trib. Heliantheae |
| | Galium coloradoense W.Wight |
| | Gaultheria humifusa (Graham) Rydb. |
| | Gentiana affinis Griseb. sect. Pneumonanthe |
| | Gentiana algida Pall. sect. Frigidae |
| | Gentiana andrewsii Griseb. sect. Pneumonanthe |
| | Gentiana parryi Engelm. sect. Pneumonanthe |
| | Gentianopsis barbellata (Engelm.) Iltis |
| | Geranium caespitosum E.James |
| | Geranium richardsonii Fisch. & Trautv. |
| | Geranium viscosissimum Fisch. & C.A.Mey. |
| | Geum ciliatum Pursh |
| | Geum rossii (R.Br.) Ser. |
| | Geum triflorum Pursh |
| | Geum turbinatum Rydb. |
| | Giliastrum acerosum (A.Gray) Rydb. |
| | Grayia spinosa (Hook.) Moq. |
| | Gutierrezia sarothrae (Pursh) Britton & Rusby trib. Astereae |
| | |
| | Hackelia micrantha (Eastw.) J.L.Gentry |
| | Hedysarum boreale Nutt. trib. Hedysareae |
| | Helianthella parryi A.Gray trib. Heliantheae |
| | Hesperochiron pumilus (Griseb.) Porter |
| | Heterotheca hirsutissima (Greene) G.L.Nesom trib. Astereae |
| | Heterotheca polothrix G.L.Nesom trib. Astereae |
| | Heterotheca pumila (Greene) Semple trib. Astereae |
| | Heterotheca villosa (Pursh) Shinners trib. Astereae |
| | Heuchera bracteata (Torr.) Ser. |
| | Heuchera hallii A.Gray |
| | Heuchera parvifolia Nutt. |
| | Heuchera richardsonii R.Br. |
| | Heuchera rubescens Torr. |
| | Hieracium triste Willd. ex Spreng. trib. Cichorieae |
| | Hoffmannseggia glauca (Ortega) Eifert trib. Caesalpinieae |
| | Hydrophyllum capitatum Douglas ex Benth. |
| | Hydrophyllum fendleri (A.Gray) A.Heller |
| | 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 richardsonii (Hook.) Cockerell trib. Helenieae |
| | Hypericum scouleri Hook. sect. Hypericum |
| | |
| | Ipomopsis congesta (Hook.) V.E.Grant |
| | Ipomopsis longiflora (Torr.) V.E.Grant |
| | Ipomopsis polyantha (Rydb.) V.E.Grant |
| | Ipomopsis roseata (Rydb.) V.E.Grant |
| | Ipomopsis spicata (Nutt.) V.E.Grant |
| | Ipomopsis tenuituba (Rydb.) V.E.Grant |
| | |
| | Kalmia microphylla (Hook.) A.Heller |
| | Krascheninnikovia lanata (Pursh) A.Meeuse & A.Smit |
| | |
| | Lathyrus decaphyllus Pursh trib. Vicieae |
| | Lathyrus incanus (J.G.Sm. & Rydb.) Rydb. trib. Vicieae |
| | Lathyrus zionis C.L.Hitch. trib. Vicieae |
| | Lepidium montanum Nutt. |
| | Leptosiphon nuttallii (A.Gray) J.M.Porter & L.A.Johnson |
| | Lewisia nevadensis (A.Gray) B.L.Rob. sect. Pygmaea |
| | Lewisia pygmaea (A.Gray) B.L.Rob. sect. Pygmaea |
| | Lewisia rediviva Pursh sect. Rediviva |
| | Liatris punctata Hook. trib. Eupatorieae |
| | Linanthus caespitosus (Nutt.) J.M.Porter & L.A.Johnson |
| | Linanthus pungens (Torr.) J.M.Porter & L.A.Johnson |
| | Linanthus watsonii (A.Gray) Wherry |
| | Linum kingii S.Watson |
| | Linum lewisii Pursh |
| | Lithophragma glabrum Nutt. |
| | Lithophragma parviflorum (Hook.) Nutt. |
| | Lithophragma tenellum Nutt. |
| | Lithospermum incisum Lehm. |
| | Lomatium eastwoodiae (J.M.Coult. & Rose) J.F.Macbr. |
| | Lomatium foeniculaceum (Nutt.) J.M.Coult. & Rose |
| | Lomatium grayi (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | 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 nuttallii (A.Gray) J.F.Macbr. |
| | Lomatium orientale J.M.Coult. & Rose |
| | Lomatium planosum (Osterh.) Mansfield & S.R.Downie |
| | Lorandersonia microcephala (Cronquist) Urbatsch & al. trib. Astereae |
| | Lupinus breweri A.Gray trib. Genisteae |
| | Lupinus caespitosus Nutt. trib. Genisteae |
| | Lupinus crassus Payson trib. Genisteae |
| | Lupinus fulvomaculatus Payson trib. Genisteae |
| | Lupinus holosericeus Nutt. trib. Genisteae |
| | Lupinus parviflorus Nutt. ex. Hook. & Arn. trib. Genisteae |
| | Lupinus sericeus Pursh trib. Genisteae |
| | Lupinus watsonii A.Heller trib. Genisteae |
| | Lygodesmia dianthopsis (D.C.Eaton) Tomb trib. Cichorieae |
| | Lygodesmia doloresensis Tomb trib. Cichorieae |
| | Lygodesmia grandiflora (Nutt.) Torr. & A.Gray trib. Cichorieae |
| | Lygodesmia juncea (Pursh) D.Don ex Hook. trib. Cichorieae |
| | |
| | Melampodium leucanthum Torr. & A.Gray trib. Heliantheae |
| | Melanocalyx uniflora (L.) Morin |
| | Menodora scabra Engelm. ex A.Gray |
| | Mentzelia decapetala (Sims) Urb. |
| | Mentzelia laevicaulis (Douglas ex Hook.) Torr. & A.Gray |
| | Mentzelia nuda (Pursh) Torr. & A.Gray |
| | Mentzelia oligosperma Nutt. ex Sims |
| | Menyanthes trifoliata L. |
| | Mertensia arizonica Greene |
| | Mertensia bakeri Greene |
| | Mertensia brachyloba Greene |
| | Mertensia brevistyla S.Watson |
| | Mertensia cana Rydb. |
| | Mertensia ciliata (E.James ex Torr.) G.Don |
| | Mertensia coriacea A.Nelson |
| | Mertensia cynoglossoides Greene |
| | Mertensia fendleri A.Gray |
| | Mertensia franciscana A.Heller |
| | Mertensia humilis Rydb. |
| | Mertensia lanceolata (Pursh) DC. |
| | Mertensia lateriflora Greene |
| | Mertensia oblongifolia (Nutt.) G.Don |
| | Mertensia ovata Rydb. |
| | Mertensia parvifolia (L.O.Williams) Nazaire & L.Hufford |
| | Mertensia secundorum Cockerell |
| | Mertensia tweedyi Rydb. |
| | Mertensia viridis (A.Nelson) A.Nelson |
| | Micranthes foliolosa (R.Br.) Gornall sect. Arabisa |
| | Micranthes oregana (Howell) Small sect. Micranthes |
| | Micranthes rhomboidea (Greene) Small sect. Micranthes |
| | Microseris cuspidata (Pursh) Sch.Bip. trib. Cichorieae |
| | Moehringia lateriflora (L.) Fenzl |
| | Monarda fistulosa L. |
| | Monarda menthifolia Graham |
| | Monardella glauca Greene |
| | Moneses uniflora (L.) A.Gray |
| | Montia chamissoi (Ledeb. ex Spreng.) Greene |
| | Musineon divaricatum (Pursh) Nutt. |
| | Musineon tenuifolium Nutt. |
| | Myosotis asiatica (Vestergr.) Schischk. & Serg. |
| | |
| | Neoparrya lithophila Mathias |
| | Noccaea glauca (A.Nelson) Holub |
| | |
| | Oenothera acutissima W.L.Wagner sect. Lavauxia |
| | Oenothera albicaulis Pursh sect. Anogra |
| | Oenothera canescens Torr. & Frém. sect. Gauropsis |
| | Oenothera cespitosa Nutt. sect. Pachylophus |
| | Oenothera coronopifolia Torr. & A.Gray sect. Kleinia |
| | Oenothera flava (A.Nelson) Garrett sect. Lavauxia |
| | Oenothera greggii A.Gray sect. Calylophus |
| | Oenothera hartwegii Benth. sect. Calylophus |
| | Oenothera howardii (A.Nelson) M.E.Jones ex Prain sect. Megapterium |
| | 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 runcinata (Engelm.) Munz sect. Anogra |
| | Oenothera serrulata Nutt. sect. Calylophus |
| | Oenothera trichocalyx Nutt. sect. Anogra |
| | Oönopsis engelmannii (A.Gray) Greene trib. Astereae |
| | Oönopsis foliosa (Torr. & A.Gray) Greene trib. Astereae |
| | Oönopsis monocephala A.Nelson trib. Astereae |
| | Oreocarya aperta Eastw. |
| | Oreocarya bakeri Greene |
| | Oreocarya breviflora Osterh. |
| | Oreocarya caespitosa A.Nelson |
| | Oreocarya cana A.Nelson |
| | Oreocarya cinerea Greene |
| | Oreocarya flava A.Nelson |
| | Oreocarya flavoculata A.Nelson |
| | Oreocarya fulvocanescens (S.Watson) Greene |
| | Oreocarya glomerata (Fraser ex Pursh) Greene |
| | Oreocarya humilis (A.Gray) Greene |
| | Oreocarya longiflora A.Nelson |
| | Oreocarya nitida Greene |
| | Oreocarya osterhoutii Payson |
| | Oreocarya paradoxa A.Nelson |
| | Oreocarya rollinsii (I.M.Johnst.) W.A.Weber |
| | Oreocarya sericea (A.Gray) Greene |
| | Oreocarya suffruticosa (Torr.) Greene |
| | Orthilia secunda (L.) House |
| | Oxalis caerulea (Small) R.Knuth |
| | Oxalis metcalfei (Small) R.Knuth |
| | Oxyria digyna (L.) Hill |
| | Oxytropis besseyi (Rydb.) Blank. trib. Galegeae |
| | Oxytropis cusickii Greenm. sect. Orobia |
| | Oxytropis monticola A.Gray sect. Orobia |
| | Oxytropis multiceps Nutt. trib. Galegeae |
| | Oxytropis obnapiformis Ced.Porter trib. Galegeae |
| | Oxytropis parryi A.Gray trib. Galegeae |
| | Oxytropis patens (Rydb.) A.Nelson trib. Galegeae |
| | Oxytropis podocarpa A.Gray trib. Galegeae |
| | Oxytropis retrorsa Fernald sect. Mesogaea |
| | Oxytropis sericea Nutt. trib. Galegeae |
| | Oxytropis splendens Douglas trib. Galegeae |
| | Oxytropis viscida Nutt. trib. Galegeae |
| | Ozomelis stauropetala (Piper) Rydb. |
| | |
| | Packera cana (Hook.) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera dimorphophylla (Greene) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera porteri (Greene) C.Jeffrey trib. Senecioneae |
| | Packera thurberi (A.Gray) B.L.Turner trib. Senecioneae |
| | Packera werneriifolia (A.Gray) W.A.Weber & Á.Löve trib. Senecioneae |
| | Parnassia fimbriata K.D.Koenig |
| | Parnassia kotzebuei Cham. ex Spreng. |
| | Parnassia palustris L. |
| | Parnassia parviflora DC. |
| | Paronychia depressa (Torr. & A.Gray) Nutt. ex A.Nelson |
| | Paronychia jamesii Torr. & A.Gray |
| | Paronychia pulvinata A.Gray |
| | Paronychia sessiliflora Nutt. |
| | Parthenium alpinum (Nutt.) Torr. & A.Gray trib. Heliantheae |
| | Parthenium ligulatum (M.E.Jones) Barneby trib. Heliantheae |
| | Paxistima myrsinites (Pursh) Raf. |
| | Pectiantia pentandra (Hook.) Rydb. |
| | Pedicularis centranthera A.Gray |
| | Pedicularis racemosa Douglas ex Benth. |
| | Pedicularis scopulorum A.Gray |
| | Pediomelum esculentum (Pursh) Rydb. trib. Psoraleeae |
| | Pediomelum hypogaeum (Nutt.) Rydb. trib. Psoraleeae |
| | Pediomelum megalanthum (Wooton & Standl.) Rydb. trib. Psoraleeae |
| | Penstemon aggregatus Pennell sect. Penstemon |
| | Penstemon albidus Nutt. sect. Cristati |
| | Penstemon alpinus Torr. sect. Glabri |
| | Penstemon ambiguus Torr. sect. Ambigui |
| | Penstemon angustifolius Nutt. ex Pursh sect. Coerulei |
| | Penstemon arenicola A.Nelson sect. Coerulei |
| | Penstemon auriberbis Pennell sect. Cristati |
| | Penstemon bradburyi Pursh sect. Coerulei |
| | Penstemon brandegeei (Porter) Rydb. sect. Glabri |
| | Penstemon breviculus (D.D.Keck) G.T.Nisbet & R.C.Jacks. sect. Cristati |
| | Penstemon buckleyi Pennell sect. Coerulei |
| | Penstemon caespitosus Nutt. ex A.Gray sect. Caespitosi |
| | Penstemon caudatus A.Heller sect. Coerulei |
| | Penstemon coloradoensis A.Nelson sect. Caespitosi |
| | Penstemon comarrhenus A.Gray sect. Glabri |
| | Penstemon crandallii A.Nelson sect. Caespitosi |
| | Penstemon cyanocaulis Payson sect. Glabri |
| | Penstemon cyathophorus Rydb. sect. Coerulei |
| | Penstemon debilis O‘Kane & J.L.Anderson sect. Glabri |
| | Penstemon degeneri Crosswh. sect. Penstemon |
| | Penstemon eriantherus Nutt. ex Pursh sect. Cristati |
| | Penstemon exilifolius A.Nelson sect. Cristati |
| | Penstemon fremontii Torr. & A.Gray sect. Glabri |
| | Penstemon gibbensii Dorn sect. Glabri |
| | Penstemon glabrescens Pennell sect. Caespitosi |
| | Penstemon gracilis Nutt. sect. Penstemon |
| | Penstemon grahamii D.D.Keck sect. Cristati |
| | Penstemon griffinii A.Nelson sect. Penstemon |
| | Penstemon hallii A.Gray sect. Glabri |
| | Penstemon harbourii A.Gray sect. Penstemon |
| | Penstemon harringtonii Penland sect. Coerulei |
| | Penstemon humilis Nutt. ex A.Gray sect. Penstemon |
| | Penstemon jamesii Benth. sect. Cristati |
| | Penstemon lentus Pennell sect. Coerulei |
| | Penstemon luculentus R.L.Johnson & M.R.Stevens sect. Glabri |
| | Penstemon mensarum Pennell sect. Glabri |
| | Penstemon moffatii Eastw. sect. Cristati |
| | Penstemon mucronatus N.H.Holmgren sect. Coerulei |
| | Penstemon ophianthus Pennell sect. Cristati |
| | Penstemon osterhoutii Pennell sect. Coerulei |
| | Penstemon penlandii W.A.Weber sect. Glabri |
| | Penstemon perbrevis (Pennell) P.M.Sl. sect. Caespitosi |
| | Penstemon procerus Douglas ex Graham sect. Penstemon |
| | Penstemon procumbens Greene sect. Caespitosi |
| | Penstemon radicosus A.Nelson sect. Penstemon |
| | Penstemon ramaleyi A.Nelson sect. Caespitosi |
| | Penstemon retrorsus Payson sect. Caespitosi |
| | Penstemon rostriflorus Kellogg sect. Bridgesiani |
| | Penstemon rydbergii A.Nelson sect. Penstemon |
| | Penstemon saxosorum Pennell sect. Glabri |
| | Penstemon scariosus Pennell sect. Glabri |
| | Penstemon secundiflorus Benth. sect. Coerulei |
| | Penstemon strictiformis Rydb. sect. Glabri |
| | Penstemon strictus Benth. sect. Glabri |
| | Penstemon teucrioides Greene sect. Caespitosi |
| | Penstemon utahensis Eastw. sect. Gentianoides |
| | Penstemon venosus (D.D.Keck) Reveal sect. Coerulei |
| | Penstemon versicolor Pennell sect. Coerulei |
| | Penstemon virens Pennell ex Rydb. sect. Penstemon |
| | Penstemon virgatus A.Gray sect. Glabri |
| | Penstemon watsonii A.Gray sect. Penstemon |
| | Penstemon whippleanus A.Gray sect. Penstemon |
| | Penstemon yampaensis Penland sect. Cristati |
| | Petradoria pumila (Nutt.) Greene trib. Astereae |
| | Petrophytum caespitosum (Nutt.) Rydb. |
| | Phacelia ciliosa (Rydb.) Rydb. |
| | Phacelia sericea (Graham) A.Gray |
| | Phemeranthus calcaricus (S.Ware) Kiger |
| | Phemeranthus calycinus (Engelm.) Kiger |
| | Phemeranthus parviflorus (Nutt.) Kiger |
| | Phlox andicola (Britton) E.E.Nelson Microphlox, Multiflorae |
| | Phlox austromontana Coville Microphlox, Canescentes |
| | Phlox caespitosa Nutt. Microphlox, Caespitosae |
| | Phlox caryophylla Wherry Alphaphlox, Longifoliae |
| | Phlox condensata (A.Gray) E.E.Nelson Microphlox, Caespitosae |
| | Phlox costata Rydb. Microphlox, Multiflorae |
| | Phlox hoodii Richardson Microphlox, Canescentes |
| | Phlox kelseyi Britton Microphlox, Sibiricae |
| | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| | Phlox multiflora A.Nelson Microphlox, Multiflorae |
| | Phlox muscoides Nutt. Microphlox, Canescentes |
| | Phlox pulvinata (Wherry) Cronquist Microphlox, Caespitosae |
| | Phyla cuneifolia (Torr.) Greene |
| | Phyla lanceolata (Michx.) Greene |
| | Physaria acutifolia Rydb. |
| | Physaria alpina Rollins |
| | Physaria arenosa (Richardson) O´Kane & Al-Shehbaz |
| | Physaria bellii G.A.Mulligan |
| | Physaria brassicoides Rydb. |
| | Physaria calcicola (Rollins) O´Kane & Al-Shehbaz |
| | Physaria congesta (Rollins) O´Kane & Al-Shehbaz |
| | Physaria fendleri (A.Gray) O´Kane & Al-Shehbaz |
| | Physaria floribunda Rydb. |
| | Physaria ludoviciana (Nutt.) O´Kane & Al-Shehbaz |
| | Physaria montana (A.Gray) Greene |
| | Physaria obcordata Rollins |
| | Physaria osterhoutii Payson |
| | Physaria ovalifolia (Rydb. ex Britton) O´Kane & Al-Shehbaz |
| | Physaria parviflora (Rollins) O´Kane & Al-Shehbaz |
| | Physaria parvula (Greene) O´Kane & Al-Shehbaz |
| | Physaria pruinosa (Greene) O´Kane & Al-Shehbaz |
| | Physaria pulvinata O´Kane & Reveal |
| | Physaria rectipes (Wooton & Standl.) O´Kane & Al-Shehbaz |
| | Physaria reediana O´Kane & Al-Shehbaz |
| | Physaria rollinsii G.A.Mulligan |
| | Physaria scrotiformis O´Kane |
| | Physaria subumbellata (Rollins) O´Kane & Al-Shehbaz |
| | Physaria vicina (J.L.Anderson & al.) O´Kane & Al-Shehbaz |
| | Physaria vitulifera Rydb. |
| | Picradeniopsis oppositifolia (Nutt.) Rydb. trib. Helenieae |
| | Picradeniopsis woodhousei (A.Gray) Rydb. trib. Helenieae |
| | Platyschkuhria integrifolia (A.Gray) Rydb. trib. Helenieae |
| | Podistera eastwoodiae (J.M.Coult. & Rose) Mathias & Const. |
| | Polemonium brandegeei (A.Gray) Greene |
| | Polemonium delicatum Rydb. |
| | Polemonium viscosum Nutt. |
| | Potentilla bicrenata Rydb. |
| | Potentilla concinna Richardson |
| | Potentilla crinita A.Gray |
| | Potentilla decurrens (S.Watson) Rydb. |
| | Potentilla effusa Douglas ex Lehm. |
| | Potentilla glaucophylla Lehm. |
| | Potentilla gordonii (Hook.) Greene |
| | Potentilla hookeriana Lehm. |
| | Potentilla jepsonii Ertter |
| | Potentilla nivea L. |
| | Potentilla ovina Macoun |
| | Potentilla pensylvanica L. |
| | Potentilla plattensis Nutt. |
| | Potentilla proxima Rydb. |
| | Potentilla rubricaulis Lehm. |
| | Potentilla rupincola Osterh. |
| | Potentilla subjuga Rydb. |
| | Potentilla subviscosa Greene |
| | Primula angustifolia Torr. sect. Parryi |
| | Primula egaliksensis Wormsk. sect. Farinosae |
| | Primula incana M.E.Jones sect. Farinosae |
| | Primula parryi A.Gray sect. Parryi |
| | Primula pauciflora (Durand) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula zionensis (Eastw.) P.M.Sl. sect. Dodecatheon |
| | Psilostrophe bakeri Greene trib. Helenieae |
| | Pulsatilla nuttalliana (DC.) Bercht. & J.Presl |
| | Pyrola asarifolia Michx. |
| | Pyrola chlorantha Sw. |
| | Pyrola minor L. |
| | Pyrola picta Sm. |
| | Pyrrocoma clementis Rydb. trib. Astereae |
| | Pyrrocoma uniflora (Hook.) Greene trib. Astereae |
| | |
| | Ranunculus adoneus A.Gray |
| | Ranunculus digitatus Hook. |
| | Ranunculus ellipticus Greene |
| | Ranunculus eschscholtzii Schltdl. |
| | Ranunculus hyperboreus Rottb. |
| | Ranunculus inamoenus Greene |
| | Ranunculus macauleyi A.Gray |
| | Ranunculus pygmaeus Wahlenb. |
| | Rhinotropis subspinosa (S.Watson) J.R.Abbott |
| | Rhodiola integrifolia Raf. |
| | Rhodiola rhodantha (A.Gray) H.Jacobsen |
| | Rubus acaulis Michx. |
| | Rumex venosus Pursh |
| | |
| | Sabulina macrantha (Rydb.) Dillenb. & Kadereit |
| | Sabulina nuttallii (Pax) Dillenb. & Kadereit |
| | Sabulina rubella (Wahlenb.) Dillenb. & Kadereit |
| | 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. |
| | Salix reticulata L. |
| | Saussurea weberi Hultén trib. Cardueae |
| | 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 |
| | Saxifraga oppositifolia L. sect. Porphyrion |
| | Scabrethia scabra (Hook.) W.A.Weber trib. Heliantheae |
| | Schizotechium jamesianum (Torr.) Arabi, Rabeler & Zarre |
| | Scutellaria brittonii Porter |
| | Scutellaria resinosa Torr. |
| | Sedum lanceolatum Torr. |
| | Sedum stelliforme S.Watson sect. Mexicali |
| | Senecio amplectens A.Gray trib. Senecioneae |
| | Senecio blitoides Greene trib. Senecioneae |
| | Senecio fremontii Torr. & A.Gray trib. Senecioneae |
| | Senecio holmii Greene trib. Senecioneae |
| | Senecio soldanella A.Gray trib. Senecioneae |
| | Senecio taraxacoides (A.Gray) Greene trib. Senecioneae |
| | Senega alba (Nutt.) J.F.B.Pastore & J.R.Abboott |
| | Sibbaldia procumbens L. |
| | Silene acaulis (L.) Jacq. |
| | Silene hitchguirei Bocquet |
| | Silene menziesii Hook. |
| | Silene uralensis (Rupr.) Bocquet |
| | Smelowskia americana (Regel & Herder) Rydb. |
| | Solidago mollis Bartl. trib. Astereae |
| | Solidago multiradiata Aiton trib. Astereae |
| | Solidago nana Nutt. trib. Astereae |
| | Sphaeralcea coccinea (Nutt.) Rydb. |
| | Sphaeralcea leptophylla (A.Gray) Rydb. |
| | Sphaeralcea parvifolia A.Nelson |
| | Stellaria irrigua Bunge |
| | Stenotus acaulis (Nutt.) Nutt. trib. Astereae |
| | Stenotus armerioides Nutt. trib. Astereae |
| | Stephanomeria runcinata Nutt. trib. Cichorieae |
| | Sullivantia purpusii (Brandegee) Rosend. |
| | Swertia perennis L. |
| | Symphyotrichum apricum (A.Gray) P.M.Sl. trib. Astereae |
| | Symphyotrichum campestre (Nutt.) G.L.Nesom trib. Astereae |
| | Symphyotrichum fendleri (A.Gray) G.L.Nesom trib. Astereae |
| | Symphyotrichum porteri (A.Gray) G.L.Nesom trib. Astereae |
| | |
| | Taraxacum ceratophorum (Ledeb.) DC. trib. Cichorieae |
| | Taraxacum scopulorum (A.Gray) Rydb. trib. Cichorieae |
| | Taraxia breviflora (Torr. & A.Gray) Nutt. ex Small |
| | Taraxia subacaulis (Pursh) Rydb. |
| | Telesonix jamesii (Torr.) Raf. |
| | Tetradymia canescens DC. trib. Senecioneae |
| | Tetraneuris acaulis (Pursh) Greene trib. Helenieae |
| | Tetraneuris arizonica Greene trib. Helenieae |
| | Tetraneuris brevifolia Greene trib. Helenieae |
| | Tetraneuris epunctata A.Nelson trib. Helenieae |
| | Tetraneuris ivesiana Greene trib. Helenieae |
| | Tetraneuris scaposa (DC.) Greene trib. Helenieae |
| | Tetraneuris torreyana (Nutt.) Greene trib. Helenieae |
| | Teucrium laciniatum Torr. |
| | Thalictrum alpinum L. |
| | Thalictrum heliophilum Wilken & DeMott |
| | Thelesperma subnudum A.Gray trib. Coreopsidae |
| | Thermopsis rhombifolia (Pursh) Richardson trib. Thermopsideae |
| | Tonestus lyallii A.Nelson trib. Astereae |
| | Tonestus pygmaeus A.Nelson trib. Astereae |
| | Townsendia eximia A.Gray trib. Astereae |
| | Townsendia exscapa (Richardson) Porter trib. Astereae |
| | Townsendia fendleri A.Gray trib. Astereae |
| | Townsendia glabella A.Gray trib. Astereae |
| | Townsendia grandiflora Nutt. trib. Astereae |
| | Townsendia hookeri Beaman trib. Astereae |
| | Townsendia incana Nutt. trib. Astereae |
| | Townsendia leptotes (A.Gray) Osterh. trib. Astereae |
| | Townsendia montana M.E.Jones trib. Astereae |
| | Townsendia rothrockii A.Gray ex Rothr. trib. Astereae |
| | Townsendia strigosa Nutt. trib. Astereae |
| | Trifolium andinum Nutt. trib. Trifolieae |
| | Trifolium anemophilum Greene trib. Trifolieae |
| | Trifolium attenuatum Greene trib. Trifolieae |
| | Trifolium brandegeei S.Watson trib. Trifolieae |
| | Trifolium dasyphyllum Torr. & A.Gray trib. Trifolieae |
| | Trifolium gymnocarpon Nutt. trib. Trifolieae |
| | Trifolium nanum Torr. trib. Trifolieae |
| | Trifolium parryi A.Gray trib. Trifolieae |
| | Trifolium rydbergii Greene trib. Trifolieae |
| | Trollius albiflorus (A.Gray) Rydb. |
| | |
| | Vaccinium cespitosum Michx. |
| | Vaccinium membranaceum Douglas ex Torr. |
| | Vaccinium scoparium Leiberg ex Coville |
| | Valeriana arizonica A.Gray |
| | Verbena bipinnatifida Schauer |
| | Veronica besseya M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica plantaginea E.James subgen. Synthyris |
| | Veronica ritteriana (Eastw.) 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 montanus (Torr. & A.Gray) R.L.Hartm. & G.L.Nesom |
| | Viola adunca Sm. sect. Viola |
| | Viola biflora L. sect. Dischidium |
| | Viola canadensis L. sect. Viola |
| | Viola labradorica Schrank sect. Viola |
| | Viola linguifolia Nutt. |
| | Viola macloskeyi F.E.Lloyd sect. Viola |
| | Viola nephrophylla Greene sect. Viola |
| | Viola nuttallii Pursh sect. Viola |
| | Viola pedatifida G.Don sect. Viola |
| | Viola renifolia A.Gray |
| | Viola rugulosa Greene sect. Viola |
| | Viola scopulorum (A.Gray) Greene sect. Viola |
| | Viola selkirkii Pursh ex Goldie sect. Viola |
| | Viola sheltonii Torr. sect. Viola |
| | Viola sororia Willd. sect. Viola |
| | Viola suecica Fr. sect. Viola |
| | Viola utahensis M.S.Baker & J.C.Clausen |
| | Viola vallicola A.Nelson |
| | Viola venosa (S.Watson) Rydb. |
| | |
| | Wyethia arizonica A.Gray trib. Heliantheae |
| | Wyethia sagittata (Pursh) Mabb. trib. Heliantheae |
| | |
| | Xanthisma coloradoense (A.Gray) D.R.Morgan & R.L.Hartm. trib. Astereae |
| | Xanthisma grindelioides (Nutt.) D.R.Morgan & R.L.Hartm. trib. Astereae |
| | Xylorhiza glabriuscula Nutt. trib. Astereae |
| | Xylorhiza venusta A.Heller trib. Astereae |
| | |
| | Zinnia grandiflora Nutt. trib. Heliantheae |