| | |
| | Abronia bigelovii Heimerl |
| | Abronia elliptica A.Nelson |
| | Abronia fragrans Nutt. ex Hook. |
| | Acmispon oroboides (Kunth) Brouillet trib. Loteae |
| | 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 |
| | Aliciella formosa (Greene ex Brand) J.M.Porter |
| | Aliciella subnuda (Torr. ex A.Gray) J.M.Porter |
| | Amorpha nana C.Fraser trib. Psoraleeae |
| | Amsonia arenaria Standl. trib. Vinceae |
| | Amsonia jonesii Woodson trib. Vinceae |
| | Amsonia tharpii Woodson |
| | Amsonia tomentosa Torr. & Frém. trib. Vinceae |
| | Androsace lehmanniana Spreng. sect. Chamaejasme |
| | Anemonastrum canadense (L.) Mosyakin |
| | Anemone berlandieri Pritz. |
| | Anemone caroliniana Walter |
| | Anemone cylindrica A.Gray |
| | Anemone hudsoniana (DC.) Richardson |
| | Anemone okennonii Keener & B.E.Dutton |
| | Anemone tuberosa Rydb. |
| | Antennaria arida E.E.Nelson trib. Gnaphalieae |
| | Antennaria corymbosa E.E.Nelson trib. Gnaphalieae |
| | Antennaria dimorpha Torr. & A.Gray trib. Gnaphalieae |
| | Antennaria marginata Greene trib. Gnaphalieae |
| | Antennaria media Greene trib. Gnaphalieae |
| | Antennaria microphylla Rydb. trib. Gnaphalieae |
| | Antennaria parvifolia Nutt. trib. Gnaphalieae |
| | Antennaria rosulata Rydb. trib. Gnaphalieae |
| | Aquilegia canadensis L. |
| | Aquilegia chaplinei Standl. ex Payson |
| | Aquilegia chrysantha A.Gray |
| | Aquilegia coerulea E.James |
| | Aquilegia desertorum (M.E.Jones) Cockerell ex A.Heller |
| | Aquilegia elegantula Greene |
| | Aquilegia hinckleyana Munz |
| | Aquilegia longissima A.Gray ex S.Watson |
| | Arctostaphylos pungens Kunth |
| | Arctostaphylos uva-ursi (L.) Spreng. |
| | Arenaria livermorensis Correll |
| | Arenaria saxosa A.Gray |
| | Arnica chamissonis Less. trib. Heliantheae |
| | Arnica cordifolia Hook. trib. Heliantheae |
| | Artemisia carruthii Alph.Wood ex J.H.Carruth trib. Anthemideae |
| | Artemisia frigida Willd. trib. Anthemideae |
| | Artemisia nova A.Nelson trib. Anthemideae |
| | Artemisia parryi A.Gray trib. Anthemideae |
| | Artemisia pygmaea A.Gray trib. Anthemideae |
| | Artemisia scopulorum A.Gray trib. Anthemideae |
| | Artemisia spinescens D.C.Eaton trib. Anthemideae |
| | Artemisia viscidula Rydb. trib. Anthemideae |
| | Asclepias sanjuanensis K.D.Kheil & al. |
| | Asclepias uncialis Greene trib. Asclepiadeae |
| | Astragalus aboriginorum Richardson trib. Galegeae |
| | Astragalus accumbens E.Sheld. trib. Galegeae |
| | Astragalus agrestis Douglas ex G.Don sect. Hypoglottidei |
| | Astragalus amphioxys A.Gray trib. Galegeae |
| | Astragalus bigelovii A.Gray trib. Galegeae |
| | 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 chuskanus Barneby & Spellenb. |
| | Astragalus cobrensis A.Gray trib. Galegeae |
| | Astragalus cottamii S.L.Welsh trib. Galegeae |
| | Astragalus crassicarpus Nutt. |
| | Astragalus curtilobus Tidestr. trib. Galegeae |
| | Astragalus cyaneus A.Gray |
| | Astragalus desperatus M.E.Jones trib. Galegeae |
| | Astragalus diphysus A.Gray trib. Galegeae |
| | Astragalus distortus Torr. & A.Gray trib. Galegeae |
| | Astragalus drummondii Douglas ex Hook. trib. Galegeae |
| | Astragalus earlei Greene ex Rydb. trib. Galegeae |
| | Astragalus egglestonii (Rydb.) Kearney & Peebles trib. Galegeae |
| | Astragalus engelmannii E.Sheld. trib. Galegeae |
| | Astragalus fallax S.Watson |
| | Astragalus feensis M.E.Jones trib. Galegeae |
| | Astragalus filifolius A.Gray trib. Galegeae |
| | Astragalus flavus Nutt. |
| | Astragalus gilensis Greene |
| | Astragalus gypsodes Barneby |
| | Astragalus hallii A.Gray |
| | Astragalus heilii S.L.Welsh & N.D.Atwood |
| | Astragalus hosackiae Greene trib. Galegeae |
| | Astragalus humillimus A.Gray |
| | Astragalus humistratus A.Gray trib. Galegeae |
| | Astragalus impensus (E.Sheld.) Wooton & Standl. trib. Galegeae |
| | Astragalus iodopetalus (Rydb.) Greene ex Barneby trib. Galegeae |
| | Astragalus kentrophyta A.Gray trib. Galegeae |
| | Astragalus kerrii P.J.Knight & Cully trib. Galegeae |
| | Astragalus knightii Barneby |
| | Astragalus lotiflorus Hook. trib. Galegeae |
| | Astragalus marcidus Greene ex Rydb. trib. Galegeae |
| | Astragalus matthewsii S.Watson trib. Galegeae |
| | Astragalus mexicanus A.DC. |
| | Astragalus micromerius Barneby |
| | Astragalus missouriensis Nutt. trib. Galegeae |
| | Astragalus mogollonicus Greene trib. Galegeae |
| | Astragalus mollissimus Torr. trib. Galegeae |
| | Astragalus monumentalis Barneby trib. Galegeae |
| | Astragalus naturitensis Payson |
| | Astragalus neomexicanus Wooton & Standley |
| | Astragalus newberryi A.Gray trib. Galegeae |
| | Astragalus nutriosensis S.C.Sand. trib. Galegeae |
| | Astragalus plattensis Nutt. trib. Galegeae |
| | Astragalus preussii A.Gray |
| | Astragalus proximus (Rydb.) Wooton & Standl. trib. Galegeae |
| | Astragalus prunifer Rydb. |
| | Astragalus rydbergii J.F.Macbr. trib. Galegeae |
| | Astragalus scaposus A.Gray |
| | Astragalus sericoleucus A.Gray trib. Galegeae |
| | Astragalus shortianus Nutt. |
| | Astragalus siliceus Barneby trib. Galegeae |
| | Astragalus sonorae A.Gray trib. Galegeae |
| | Astragalus striatus Nutt. sect. Onobrychoidei |
| | Astragalus tegetarius S.Watson trib. Galegeae |
| | Astragalus tephrodes A.Gray trib. Galegeae |
| | Astragalus thompsoniae S.Watson trib. Galegeae |
| | Astragalus trichocalyx Nutt. |
| | Astragalus vespertinus E.Sheld. trib. Galegeae |
| | Astragalus wingatanus S.Watson |
| | Astragalus wittmannii Barneby |
| | Astragalus zionis M.E.Jones |
| | Atriplex confertifolia (Torr. & Frémont) S.Watson |
| | Atriplex corrugata S.Watson |
| | |
| | Berberis repens Lindl. |
| | Berlandiera macvaughii B.L.Turner |
| | Betula glandulosa Michx. |
| | Bistorta vivipara (L.) Delarbre |
| | Boechera carrizozoensis P.J.Alexander |
| | Boechera centrifendleri P.J.Alexander |
| | Boechera duchesnensis (Rollins) Windham & al. |
| | Boechera fendleri (S.Watson) W.A.Weber |
| | Boechera kelseyana Windham & Allphin |
| | Boechera perennans (S.Watson) W.A.Weber |
| | Boechera porphyrea (Wooton & Standl.) Windham & al. |
| | Boechera spatifolia (Rydb.) Windham & Al-Shehbaz |
| | Boechera texana Windham & Al-Shehbaz |
| | Boechera villosa Windham & Al-Shehbaz |
| | Boechera zephyra P.J.Alexander |
| | Brickellia linifolia D.C.Eaton trib. Eupatorieae |
| | Brickellia parvula A.Gray trib. Eupatorieae |
| | |
| | Callirhoe involucrata (Torr. & A.Gray) A.Gray |
| | Callirhoe papaver (Cav.) A.Gray |
| | Campanula parryi A.Gray |
| | Castilleja citrina Pennell |
| | Castilleja haydenii (A.Gray) Cockerell |
| | Castilleja integra A.Gray |
| | Castilleja lanata A.Gray |
| | Castilleja lindheimeri A.Gray |
| | Castilleja miniata Douglas ex Hook. |
| | Castilleja occidentalis Torr. |
| | Castilleja purpurea (Nutt.) G.Don |
| | Castilleja rhexiifolia Rydb. |
| | Castilleja scabrida Eastw. |
| | Ceanothus fendleri A.Gray |
| | Ceanothus integerrimus Hook. & Arn. |
| | Cerastium beeringianum Cham. & Schltdl. |
| | Chaenactis douglasii Hook. & Arn. trib. Helenieae |
| | Chaetopappa ericoides (Torr.) G.L.Nesom trib. Astereae |
| | Chaetopappa hersheyi S.F.Blake trib. Astereae |
| | Chaetopappa parryi A.Gray trib. Astereae |
| | Chamaechaenactis scaposa Rydb. trib. Helenieae |
| | Cherleria obtusiloba (Rydb.) A.J.Moore & Dillenb. |
| | Chionophila jamesii Benth. trib. Cheloneae |
| | Chrysactinia mexicana A.Gray trib. Tageteae |
| | Chrysothamnus depressus (Nutt.) L.C.Anderson trib. Astereae |
| | Chrysothamnus lanceolatus Nutt. trib. Astereae |
| | Chrysothamnus vaseyi Greene trib. Astereae |
| | Chrysothamnus viscidiflorus Nutt. trib. Astereae |
| | Claytonia lanceolata Pursh |
| | Claytonia megarhiza (A.Gray) Parry ex S.Watson |
| | Claytonia rosea Rydb. |
| | Claytonia virginica L. |
| | Clematis bigelovii Torr. |
| | Clematis columbiana (Nutt.) Torr. & A.Gray |
| | Clematis grosseserrata (Rydb.) Ackerf. |
| | Clematis hirsutissima Pursh |
| | Clematis scottii Porter |
| | Clematis tenuiloba (A.Gray) C.L.Hitchc. |
| | Coreopsis grandiflora Hogg ex Sweet trib. Heliantheae |
| | Coreopsis harveyana A.Gray trib. Heliantheae |
| | Coreopsis lanceolata L. trib. Heliantheae |
| | Cornus canadensis L. |
| | Crepis occidentalis Nutt. trib. Cichorieae |
| | Crocanthemum carolinianum (Walter) Spach |
| | Crocanthemum georgianum (Chapm.) Barnhart |
| | Crocanthemum rosmarinifolium (Pursh) Janchen |
| | Cunila origanoides (L.) Britton |
| | Cymopterus alpinus A.Gray |
| | Cymopterus bakeri (J.M.Coult. & Rose) M.E.Jones |
| | Cymopterus davidsonii (J.M.Coult. & Rose) R.L.Hartm. |
| | Cymopterus fendleri A.Gray |
| | Cymopterus hallii (A.Gray) B.L.Turner |
| | Cymopterus hendersonii (J.M.Coult. & Rose) Cronquist |
| | Cymopterus lemmonii (J.M.Coult. & Rose) Dorn |
| | Cymopterus petraeus M.E.Jones |
| | Cymopterus purpureus S.Watson |
| | Cymopterus sessiliflorus (W.L.Theob. & C.C.Tseng) R.L.Hartm. |
| | Cymopterus spellenbergii R.L.Hartm. & J.E.Larson |
| | |
| | Dalea arenicola (Wemple) B.L.Turner trib. Amorpheae |
| | Dalea aurea Nutt. ex Pursh trib. Amorpheae |
| | Dalea candida Willd. trib. Amorpheae |
| | Dalea formosa Torr. trib. Amorpheae |
| | Dalea greggii A.Gray trib. Amorpheae |
| | Dalea grisea (Torr. & A.Gray) Shinners trib. Amorpheae |
| | Dalea hallii A.Gray trib. Amorpheae |
| | Dalea jamesii (Torr.) Torr. & A.Gray trib. Amorpheae |
| | Dalea lachnostachys A.Gray trib. Amorpheae |
| | Dalea lasiathera A.Gray trib. Amorpheae |
| | Dalea longipila (B.L.Rob. ex Rydb.) Cory trib. Amorpheae |
| | Dalea nana Torr. ex A.Gray trib. Amorpheae |
| | Dalea neomexicana (A.Gray) Cory trib. Amorpheae |
| | Dalea oligophylla (Torr.) Shinners trib. Amorpheae |
| | Dalea pogonathera A.Gray trib. Amorpheae |
| | Dalea purpurea Vent. trib. Amorpheae |
| | Dalea reverchonii (S.Watson) Shinners trib. Amorpheae |
| | Dalea rubescens S.Watson trib. Amorpheae |
| | Dalea scariosa S.Watson trib. Amorpheae |
| | Dalea tenuifolia (A.Gray) Shinners trib. Amorpheae |
| | Dalea tenuis (J.M.Coult.) Shinners |
| | Dalea villosa (Nutt.) Spreng. trib. Amorpheae |
| | Dalea wrightii A.Gray 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 |
| | Draba abajoensis Windham & Al-Shehbaz |
| | Draba albertina Greene |
| | Draba aurea Vahl ex Hornem. sect. Phyllodraba |
| | Draba cana Rydb. |
| | Draba crassa Rydb. sect. Phyllodraba |
| | Draba crassifolia Graham |
| | Draba grayana (Rydb.) C.L.Hitchc. |
| | Draba heilii Al-Shehbaz |
| | Draba henricii Al-Shehbaz |
| | Draba smithii Gilg ex O.E.Schulz sect. Phyllodraba |
| | Draba spectabilis Greene sect. Phyllodraba |
| | Draba standleyi J.F.Macbr. & Payson |
| | Draba streptocarpa A.Gray sect. Phyllodraba |
| | Draba viridis A.Heller |
| | Drymocallis arguta (Pursh) Rydb. |
| | Drymocallis fissa (Nutt.) Rydb. |
| | |
| | Echeveria strictiflora A.Gray |
| | Enemion biternatum Raf. |
| | Epilobium anagallidifolium Lam. |
| | Epilobium arizonicum (Davidson) P.M.Sl. |
| | Epilobium hallianum Hausskn. |
| | Epilobium lactiflorum Hausskn. |
| | Epilobium oregonense Hausskn. |
| | Epilobium saximontanum Hausskn. |
| | Eremogone aculeata (S.Watson) Ikonn. |
| | Eremogone eastwoodiae (Rydb.) Ikonn. |
| | Eremogone fendleri (A.Gray) Ikonn. |
| | Eremogone hookeri (Nutt.) W.A.Weber |
| | Ericameria cuneata (A.Gray) McClatchie trib. Astereae |
| | Ericameria laricifolia (A.Gray) Shinners trib. Astereae |
| | Ericameria nauseosa var. texensis (L.C.Anderson) G.L.Nesom |
| | Erigeron abajoensis Cronquist trib. Astereae |
| | Erigeron acomanus Spellenb. & P.J.Knight trib. Astereae |
| | Erigeron aphanactis Greene trib. Astereae |
| | Erigeron caespitosus Nutt. trib. Astereae |
| | Erigeron canus A.Gray trib. Astereae |
| | Erigeron concinnus (Hook. & Arn.) Torr. & A.Gray trib. Astereae |
| | Erigeron condensatus (D.C.Eaton) Greene trib. Astereae |
| | Erigeron coulteri Porter & J.M.Coult. 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 hessii G.L.Nesom trib. Astereae |
| | Erigeron leiomerus A.Gray trib. Astereae |
| | Erigeron melanocephalus A.Nelson trib. Astereae |
| | Erigeron nivalis Nutt. trib. Astereae |
| | Erigeron pinnatisectus (A.Gray) A.Nelson trib. Astereae |
| | Erigeron pulcherrimus A.Heller trib. Astereae |
| | Erigeron rybius G.L.Nesom trib. Astereae |
| | Erigeron scopulinus G.L.Nesom & V.D.Roth trib. Astereae |
| | Erigeron sivinskii G.L.Nesom trib. Astereae |
| | Erigeron subglaber Cronquist trib. Astereae |
| | Erigeron ursinus D.C.Eaton trib. Astereae |
| | Erigeron utahensis A.Gray trib. Astereae |
| | Erigeron vetensis Rydb. trib. Astereae |
| | Erigeron viscidus Rydb. trib. Astereae |
| | Eriogonum arcuatum Greene sect. Oligogonum |
| | Eriogonum clavellatum Small sect. Eucycla |
| | Eriogonum correllii Reveal |
| | Eriogonum corymbosum Benth. sect. Eucycla |
| | Eriogonum effusum Nutt. sect. Eucycla |
| | Eriogonum gypsophilum Wooton & Standl. sect. Eucycla |
| | Eriogonum havardii S.Watson sect. Eucycla |
| | Eriogonum jamesii Benth. sect. Oligogonum |
| | Eriogonum lachnogynum Torr. ex Benth. sect. Eucycla |
| | Eriogonum leptophyllum (Torr.) Wooton & Standl. sect. Eucycla |
| | Eriogonum lonchophyllum Torr. & A.Gray sect. Eucycla |
| | Eriogonum ovalifolium Nutt. sect. Eucycla |
| | Eriogonum purpureum (Nutt.) Nutt. ex Benth. sect. Eucycla |
| | Eriogonum racemosum Nutt. sect. Eucycla |
| | Eriogonum sarahiae N.D.Atwood & A.Clifford sect. Eucycla |
| | Eriogonum shockleyi S.Watson sect. Eucycla |
| | Eriogonum simpsonii Benth. |
| | Eriogonum suffruticosum S.Watson sect. Eucycla |
| | Eriogonum umbellatum Torr. sect. Oligogonum |
| | Eriogonum undulatum Benth. sect. Oligogonum |
| | Eriogonum wootonii (Reveal) Reveal sect. Oligogonum |
| | Eriogonum wrightii Torr. ex Benth. sect. Eucycla |
| | Eriogonum xanthum Small sect. Oligogonum |
| | Eritrichium argenteum W.Wight |
| | Erysimum amoenum (Greene) Rydb. |
| | Erysimum capitatum (Douglas) Greene |
| | Erythranthe chinatiensis G.L.Nesom |
| | Erythranthe eastwoodiae (Rydb.) G.L.Nesom & N.S.Fraga |
| | Erythranthe geyeri (Torr.) G.L.Nesom |
| | Erythranthe minor (A.Nelson) 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 |
| | Euphorbia albomarginata Torr. & Gray |
| | Euphorbia astyla Englem. ex Boiss. |
| | Euphorbia brachycera Engelm. |
| | Euphorbia chaetocalyx (Boiss.) Tidestr. |
| | Euphorbia cinerascens Engelm. |
| | Euphorbia fendleri Torr. & A.Gray |
| | Euphorbia innocua L.C.Wheeler |
| | Euphorbia jejuna M.C.Johnst. & Warnock |
| | Euphorbia lurida Engelm. |
| | Euphorbia radians Benth. |
| | Evolvulus nuttallianus Roem. & Schult. |
| | |
| | Fallugia paradoxa (D.Don ex Tilloch) Endl. ex Torr. |
| | Frasera albomarginata S.Watson |
| | |
| | Gaillardia multiceps Greene trib. Heliantheae |
| | Gaillardia pinnatifida Torr. trib. Heliantheae |
| | Galium coloradoense W.Wight |
| | Gaultheria humifusa (Graham) Rydb. |
| | Gentiana affinis Griseb. sect. Pneumonanthe |
| | Gentiana algida Pall. sect. Frigidae |
| | Gentiana parryi Engelm. sect. Pneumonanthe |
| | Gentiana saponaria L. 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 |
| | Geum turbinatum Rydb. |
| | Giliastrum acerosum (A.Gray) Rydb. |
| | Giliastrum rigidulum (Benth.) Rydb. |
| | Graptopetalum rusbyi (Greene) Rose |
| | Grayia spinosa (Hook.) Moq. |
| | Gutierrezia sarothrae (Pursh) Britton & Rusby trib. Astereae |
| | |
| | Hebecarpa barbeyana (Chodat) J.R.Abbott |
| | Hebecarpa macradenia (A.Gray) J.R.Abbott |
| | Hebecarpa obscura (Benth.) J.R.Abbott |
| | Hebecarpa ovatifolia (A.Gray) J.R.Abbott |
| | Hebecarpa palmeri (S.Watson) J.R.Abbott |
| | Hebecarpa punctata (Humb. ex Schult.) J.R.Abbott & J.Pastore |
| | Hebecarpa rectipilis (S.F.Blake) J.R.Abbott |
| | Hedeoma apiculata W.S.Stewart |
| | Hedeoma nana (Torr.) Briq. |
| | Hedeoma pulcherrima Wooton & Standl. |
| | Hedeoma reverchonii (A.Gray) A.Gray |
| | Hedeoma todsenii R.S.Irving |
| | Hedysarum boreale Nutt. trib. Hedysareae |
| | Helianthella parryi A.Gray trib. Heliantheae |
| | Helianthus arizonensis R.C.Jacks. |
| | Heterotheca hirsutissima (Greene) G.L.Nesom trib. Astereae |
| | Heterotheca pumila (Greene) Semple trib. Astereae |
| | Heterotheca sierrablancensis (Semple) G.L.Nesom trib. Astereae |
| | Heterotheca viscida (A.Gray) V.L.Harms trib. Astereae |
| | Heuchera glomerulata Rosend., Butters & Lakela |
| | Heuchera hallii A.Gray |
| | Heuchera novomexicana Wheelock |
| | Heuchera parvifolia Nutt. |
| | Heuchera pulchella Wooton & Standl. |
| | Heuchera rubescens Torr. |
| | Heuchera sanguinea Engelm. |
| | Heuchera woodsiaphila P.J.Alexander |
| | Heuchera wootonii Rydb. |
| | Hieracium brevipilum Greene |
| | Hieracium triste Willd. ex Spreng. trib. Cichorieae |
| | Hoffmannseggia drummondii Torr. & A.Gray trib. Caesalpinieae |
| | Hoffmannseggia glauca (Ortega) Eifert trib. Caesalpinieae |
| | Houstonia longifolia Gaertn. |
| | Houstonia purpurea L. |
| | Houstonia rubra Cav. |
| | Houstonia wrightii A.Gray |
| | Hydrophyllum fendleri (A.Gray) 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 richardsonii (Hook.) Cockerell trib. Helenieae |
| | Hymenoxys rusbyi Cockerell trib. Helenieae |
| | Hymenoxys vaseyi Cockerell trib. Helenieae |
| | Hypericum scouleri Hook. sect. Hypericum |
| | Hypericum stragulum P.B.Adams & N.Robson |
| | |
| | Ionactis elegans (Soreng & Spellenb.) G.L.Nesom trib. Astereae |
| | Ionactis linariifolia (L.) Greene trib. Astereae |
| | Ipomopsis congesta (Hook.) V.E.Grant |
| | Ipomopsis longiflora (Torr.) V.E.Grant |
| | Ipomopsis spicata (Nutt.) V.E.Grant |
| | |
| | Justicia wrightii A.Gray |
| | |
| | Krascheninnikovia lanata (Pursh) A.Meeuse & A.Smit |
| | |
| | Laphamia aglossa (A.Gray) Benth. & Hook.f. ex Hemsl. trib. Heliantheae |
| | Laphamia angustifolia A.Gray trib. Heliantheae |
| | Laphamia bisetosa Torr. trib. Heliantheae |
| | Laphamia cernua Greene trib. Heliantheae |
| | Laphamia cinerea A.Gray trib. Heliantheae |
| | Laphamia dissecta Torr. trib. Heliantheae |
| | Laphamia lemmonii A.Gray trib. Heliantheae |
| | Laphamia lindheimeri A.Gray trib. Heliantheae |
| | Laphamia parryi (A.Gray) Benth. & Hook.f. ex Hemsl. trib. Heliantheae |
| | Laphamia quinqueflora Steyerm. trib. Heliantheae |
| | Laphamia rupestris A.Gray trib. Heliantheae |
| | Laphamia staurophylla Barneby trib. Heliantheae |
| | Lathyrus decaphyllus Pursh trib. Vicieae |
| | Lathyrus incanus (J.G.Sm. & Rydb.) Rydb. trib. Vicieae |
| | Lathyrus zionis C.L.Hitch. trib. Vicieae |
| | Lenophyllum texanum (Donn.Sm.) Rose |
| | Lepidium montanum Nutt. |
| | Lespedeza procumbens Michx. trib. Desmodieae |
| | Leucosyris blepharophylla (A.Gray) Pruski & R.L.Hartm. trib. Astereae |
| | Lewisia nevadensis (A.Gray) B.L.Rob. sect. Pygmaea |
| | Lewisia pygmaea (A.Gray) B.L.Rob. sect. Pygmaea |
| | Liatris mucronata DC. trib. Eupatorieae |
| | Liatris punctata Hook. trib. Eupatorieae |
| | Linanthus pungens (Torr.) J.M.Porter & L.A.Johnson |
| | Linum allredii Sivinski & M.O.Howard |
| | Linum elongatum (Small) H.J.P. Winkl. |
| | Linum lewisii Pursh |
| | Linum rupestre Engelm. ex A.Gray |
| | Linum subteres (Trel.) H.J.P.Winkl. |
| | Lithophragma cymbalaria Torr. & A.Gray |
| | Lithophragma glabrum Nutt. |
| | Lithophragma tenellum Nutt. |
| | Lithospermum canescens (Michx.) Lehm. |
| | Lithospermum incisum Lehm. |
| | Lithospermum mirabile Small |
| | Lomatium daucifolium (Torr. & A.Gray) J.M.Coult. & Rose |
| | Lomatium foeniculaceum (Nutt.) J.M.Coult. & Rose |
| | Lomatium grayi (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lomatium linearifolium (S.Watson) J.F.Sm. & Mansfield |
| | Lomatium macdougalii J.M.Coult. & Rose |
| | Lomatium nevadense (S.Watson) J.M.Coult. & Rose |
| | Lomatium orientale J.M.Coult. & Rose |
| | Lomatium parishii (J.M.Coult. & Rose) J.M.Coult. & Rose |
| | Lorandersonia microcephala (Cronquist) Urbatsch & al. trib. Astereae |
| | Lupinus argenteus Pursh trib. Genisteae |
| | Lupinus breweri A.Gray trib. Genisteae |
| | Lupinus crassus Payson trib. Genisteae |
| | Lupinus fulvomaculatus Payson trib. Genisteae |
| | Lupinus laxiflorus Douglass ex Lindl. trib. Genisteae |
| | Lupinus palmeri S.Watson trib. Genisteae |
| | Lupinus parviflorus Nutt. ex. Hook. & Arn. trib. Genisteae |
| | Lupinus sericeus Pursh trib. Genisteae |
| | Lupinus watsonii A.Heller trib. Genisteae |
| | Lygodesmia arizonica Tomb. trib. Cichorieae |
| | Lygodesmia grandiflora (Nutt.) Torr. & A.Gray trib. Cichorieae |
| | Lygodesmia juncea (Pursh) D.Don ex Hook. trib. Cichorieae |
| | |
| | Marina calycosa (A.Gray) Barneby trib. Amorpheae |
| | Melampodium cinereum DC. trib. Heliantheae |
| | Melampodium leucanthum Torr. & A.Gray trib. Heliantheae |
| | Melanocalyx uniflora (L.) Morin |
| | Menodora scabra Engelm. ex A.Gray |
| | Mentzelia decapetala (Sims) Urb. |
| | Mentzelia guadalupensis (Spellenb.) P.M.Sl. |
| | Mentzelia humilis (Urb. & Gilg) J.Darl. |
| | Mentzelia nuda (Pursh) Torr. & A.Gray |
| | Mentzelia oligosperma Nutt. ex Sims |
| | Menyanthes trifoliata L. |
| | Mertensia brevistyla S.Watson |
| | Mertensia caelestina A.Nelson & Cockerell |
| | Mertensia ciliata (E.James ex Torr.) G.Don |
| | Mertensia coriacea A.Nelson |
| | Mertensia fendleri A.Gray |
| | Mertensia franciscana A.Heller |
| | Mertensia lanceolata (Pursh) DC. |
| | Mertensia oblongifolia (Nutt.) G.Don |
| | Mertensia ovata Rydb. |
| | Mertensia tweedyi Rydb. |
| | Micranthes eriophora (S.Watson) Small sect. Dermasea |
| | Micranthes rhomboidea (Greene) Small sect. Micranthes |
| | Micranthes texana (Buckley) Small sect. Dermasea |
| | Microseris cuspidata (Pursh) Sch.Bip. trib. Cichorieae |
| | Mitchella repens L. |
| | Moehringia lateriflora (L.) Fenzl |
| | Monarda fistulosa L. |
| | Monarda menthifolia Graham |
| | Monardella glauca Greene |
| | Monardella nana A.Gray |
| | Monardella odoratissima Benth. |
| | Moneses uniflora (L.) A.Gray |
| | Montia chamissoi (Ledeb. ex Spreng.) Greene |
| | |
| | Nama xylopoda (Wooton & Standl.) C.L.Hitchc. |
| | Neoparrya lithophila Mathias |
| | Nerisyrenia hypercorax P.J.Alexander & M.J.Moore |
| | Nerisyrenia linearifolia (S.Watson) Greene |
| | Noccaea fendleri (A.Gray) Holub |
| | Noccaea glauca (A.Nelson) Holub |
| | |
| | Oenothera albicaulis Pursh sect. Anogra |
| | Oenothera berlandieri (Spach) Steud. |
| | Oenothera brachycarpa A.Gray sect. Megapterium |
| | Oenothera canescens Torr. & Frém. sect. Gauropsis |
| | Oenothera capillifolia Scheele |
| | Oenothera cespitosa Nutt. sect. Pachylophus |
| | Oenothera coronopifolia Torr. & A.Gray sect. Kleinia |
| | Oenothera coryi W.L.Wagner sect. Megapterium |
| | Oenothera fendleri A.Gray sect. Calylophus |
| | Oenothera filifolia (Eastw.) Tidestr. sect. Calylophus |
| | Oenothera flava (A.Nelson) Garrett sect. Lavauxia |
| | Oenothera gayleana M.L.Turner & M.J.Moore sect. Calylophus |
| | Oenothera greggii A.Gray sect. Calylophus |
| | Oenothera hartwegii Benth. sect. Calylophus |
| | Oenothera havardii S.Watson sect. Paradoxus |
| | Oenothera hispida (Benth.) W.L.Wagner & al. |
| | Oenothera kunthiana (Spach) Munz |
| | Oenothera latifolia (Rydb.) Munz sect. Anogra |
| | Oenothera lavandulifolia Torr. & A.Gray sect. Calylophus |
| | Oenothera macrocarpa Nutt. sect. Megapterium |
| | Oenothera marginata Nutt. ex Hook. & Arn. sect. Pachylophus |
| | Oenothera mckelveyae (Munz) W.L.Wagner & Hoch sect. Gaura |
| | Oenothera oklahomensis (Norton) Hitchc. sect. Megapterium |
| | Oenothera pallida Lindl. sect. Anogra |
| | Oenothera platanorum P.H.Raven & D.R.Parn. sect. Hartmannia |
| | Oenothera pringlei (Munz) Munz sect. Calylophus |
| | Oenothera rosea L‘Hér. ex Aiton sect. Hartmannia |
| | Oenothera runcinata (Engelm.) Munz sect. Anogra |
| | Oenothera serrulata Nutt. sect. Calylophus |
| | Oenothera sessilis (Pennel) Munz sect. Kneiffia |
| | Oenothera speciosa Nutt. sect. Hartmannia |
| | Oenothera texensis P.H.Raven & D.R.Parn. sect. Hartmannia |
| | Oenothera trichocalyx Nutt. sect. Anogra |
| | Oenothera tubicula A.Gray sect. Calylophus |
| | Oreocarya bakeri Greene |
| | Oreocarya cinerea Greene |
| | Oreocarya flava A.Nelson |
| | Oreocarya flavoculata A.Nelson |
| | Oreocarya fulvocanescens (S.Watson) Greene |
| | Oreocarya nitida Greene |
| | Oreocarya paradoxa A.Nelson |
| | Oreocarya suffruticosa (Torr.) Greene |
| | Orthilia secunda (L.) House |
| | Oxalis caerulea (Small) R.Knuth |
| | Oxalis decaphylla Kunth |
| | Oxalis drummondii A.Gray |
| | Oxalis metcalfei (Small) R.Knuth |
| | Oxalis violacea L. |
| | Oxyria digyna (L.) Hill |
| | Oxytropis articulata (Greene) P.M.Sl. 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 splendens Douglas trib. Galegeae |
| | |
| | Packera actinella (Greene) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera cana (Hook.) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera dimorphophylla (Greene) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera spellenbergii (T.M.Barkley) 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 asarifolia Vent. |
| | Parnassia fimbriata K.D.Koenig |
| | Parnassia grandifolia DC. |
| | Parnassia palustris L. |
| | Paronychia depressa (Torr. & A.Gray) Nutt. ex A.Nelson |
| | Paronychia jamesii Torr. & A.Gray |
| | Paronychia pulvinata A.Gray |
| | Paronychia sessiliflora Nutt. |
| | Paronychia wilkinsonii S.Watson |
| | Parthenium alpinum (Nutt.) Torr. & A.Gray trib. Heliantheae |
| | Paxistima myrsinites (Pursh) Raf. |
| | Pectiantia pentandra (Hook.) Rydb. |
| | Pectis longipes A.Gray trib. Tageteae |
| | Pedicularis centranthera A.Gray |
| | Pedicularis racemosa Douglas ex Benth. |
| | Pedicularis scopulorum A.Gray |
| | Pediomelum esculentum (Pursh) Rydb. trib. Psoraleeae |
| | Pediomelum humile Rydb. trib. Psoraleeae |
| | Pediomelum hypogaeum (Nutt.) Rydb. trib. Psoraleeae |
| | Pediomelum megalanthum (Wooton & Standl.) Rydb. trib. Psoraleeae |
| | Pediomelum pentaphyllum (L.) Rydb. trib. Psoraleeae |
| | Pediomelum scaposum Rydb. trib. Psoraleeae |
| | Pediomelum subulatum (Bush) Rydb. trib. Psoraleeae |
| | Penstemon alamosensis Pennell & G.T.Nisbet sect. Gentianoides |
| | Penstemon albidus Nutt. sect. Cristati |
| | Penstemon alpinus Torr. sect. Glabri |
| | Penstemon ambiguus Torr. sect. Ambigui |
| | Penstemon angustifolius Nutt. ex Pursh sect. Coerulei |
| | Penstemon auriberbis Pennell sect. Cristati |
| | Penstemon baccharifolius Hook. sect. Baccharifolii |
| | Penstemon bleaklyi O‘Kane & K.D.Heil sect. Penstemon |
| | 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 caudatus A.Heller sect. Coerulei |
| | Penstemon cobaea Nutt. sect. Cristati |
| | Penstemon coloradoensis A.Nelson sect. Caespitosi |
| | Penstemon comarrhenus A.Gray sect. Glabri |
| | Penstemon crandallii A.Nelson sect. Caespitosi |
| | Penstemon dasyphyllus A.Gray sect. Chamaeleon |
| | Penstemon deaveri Crosswh. sect. Glabri |
| | Penstemon fendleri Torr. & A.Gray sect. Coerulei |
| | Penstemon glabrescens Pennell sect. Caespitosi |
| | Penstemon gracilis Nutt. sect. Penstemon |
| | Penstemon griffinii A.Nelson sect. Penstemon |
| | Penstemon guadalupensis A.Heller sect. Cristati |
| | Penstemon inflatus Crosswh. sect. Penstemon |
| | Penstemon jamesii Benth. sect. Cristati |
| | Penstemon laxiflorus Pennell sect. Penstemon |
| | Penstemon lentus Pennell sect. Coerulei |
| | Penstemon linarioides A.Gray sect. Caespitosi |
| | Penstemon metcalfei Wooton & Standl. sect. Penstemon |
| | Penstemon neomexicanus Wooton & Standl. sect. Glabri |
| | Penstemon oklahomensis Pennell sect. Penstemon |
| | Penstemon oliganthus Wooton & Standl. sect. Penstemon |
| | Penstemon ophianthus Pennell sect. Cristati |
| | Penstemon palmeri A.Gray sect. Spectabiles |
| | Penstemon pinifolius Greene sect. Caespitosi |
| | Penstemon pseudoparvus Crosswh. sect. Humiles |
| | Penstemon rostriflorus Kellogg sect. Bridgesiani |
| | Penstemon rydbergii A.Nelson sect. Penstemon |
| | Penstemon secundiflorus Benth. sect. Coerulei |
| | Penstemon strictiformis Rydb. sect. Glabri |
| | Penstemon strictus Benth. sect. Glabri |
| | Penstemon superbus A.Nelson sect. Gentianoides |
| | Penstemon thurberi Torr. sect. Ambigui |
| | Penstemon triflorus A.Heller sect. Cristati |
| | Penstemon venosus (D.D.Keck) Reveal sect. Coerulei |
| | Penstemon virgatus A.Gray sect. Glabri |
| | Penstemon whippleanus A.Gray sect. Penstemon |
| | Perityle coronopifolia A.Gray trib. Heliantheae |
| | Perityle fosteri A.M.Powell trib. Heliantheae |
| | Perityle huecoensis A.M.Powell trib. Heliantheae |
| | Perityle vitreomontana Warnock trib. Heliantheae |
| | Perityle warnockii A.M.Powell trib. Heliantheae |
| | Petradoria graminea Wooton & Standl. trib. Astereae |
| | Petradoria pumila (Nutt.) Greene trib. Astereae |
| | Petrophytum caespitosum (Nutt.) Rydb. |
| | Phacelia sericea (Graham) A.Gray |
| | Phemeranthus brachypodius (S.Watson) D.J.Ferguson |
| | Phemeranthus brevicaulis (S.Watson) Kiger |
| | Phemeranthus brevifolius (Torr.) Hershk. |
| | Phemeranthus calcaricus (S.Ware) Kiger |
| | Phemeranthus calycinus (Engelm.) Kiger |
| | Phemeranthus humilis (Greene) Kiger |
| | Phemeranthus longipes (Wooton & Standl.] Kiger |
| | Phemeranthus parviflorus (Nutt.) Kiger |
| | Phemeranthus parvulus (Rose & Standl.) D.J.Ferguson & T.M.Price |
| | Phemeranthus rugospermus (Holz.) Kiger |
| | Phemeranthus validulus (Greene) Kiger |
| | Phlox austromontana Coville Microphlox, Canescentes |
| | Phlox caespitosa Nutt. Microphlox, Caespitosae |
| | Phlox canescens Torr. & A.Gray Microphlox, Canescentes |
| | Phlox carolina L. Alphaphlox, Ovatae |
| | Phlox caryophylla Wherry Alphaphlox, Longifoliae |
| | Phlox cluteana A.Nelson Alphaphlox, Cluteanae |
| | Phlox condensata (A.Gray) E.E.Nelson Microphlox, Caespitosae |
| | Phlox costata Rydb. Microphlox, Multiflorae |
| | Phlox detonsa Small Protophlox, Divaricatae |
| | Phlox divaricata L. Protophlox, Divaricatae |
| | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| | Phlox mesoleuca Greene Protophlox, Nanae |
| | Phlox nana Nutt. Protophlox, Nanae |
| | Phlox oklahomensis Wherry Protophlox, Speciosae |
| | Phlox pilosa L. Protophlox, Divaricatae |
| | Phlox pulcherrima (Lundell) Lundell Protophlox, Divaricatae |
| | Phlox pulvinata (Wherry) Cronquist Microphlox, Caespitosae |
| | Phlox texensis (Lundell) Lundell Protophlox, Speciosae |
| | Phlox vermejoensis B.S.Leger |
| | Phlox villosissima Small Protophlox, Divaricatae |
| | Phlox woodhousei (A.Gray) E.E.Nelson Protophlox, Speciosae |
| | Phyla cuneifolia (Torr.) Greene |
| | Phyla lanceolata (Michx.) Greene |
| | Physaria acutifolia Rydb. |
| | Physaria argyraea (A.Gray) O´Kane & Al-Shehbaz |
| | Physaria aurea (Wooton) O´Kane & Al-Shehbaz |
| | Physaria calcicola (Rollins) O´Kane & Al-Shehbaz |
| | Physaria engelmannii (A.Gray) O´Kane & Al-Shehbaz |
| | Physaria fendleri (A.Gray) O´Kane & Al-Shehbaz |
| | Physaria floribunda Rydb. |
| | Physaria intermedia (S.Watson) O´Kane & Al-Shehbaz |
| | Physaria lata (Wooton & Standl.) O´Kane & Al-Shehbaz |
| | Physaria ludoviciana (Nutt.) O´Kane & Al-Shehbaz |
| | Physaria mcvaughiana (Rollins) O´Kane & Al-Shehbaz |
| | Physaria montana (A.Gray) Greene |
| | Physaria navajoensis (O'Kane) O'Kane & Al-Shehbaz |
| | Physaria newberryi A.Gray |
| | Physaria ovalifolia (Rydb. ex Britton) O´Kane & Al-Shehbaz |
| | Physaria pinetorum (Wooton & Standl.) O´Kane & Al-Shehbaz |
| | Physaria pruinosa (Greene) O´Kane & Al-Shehbaz |
| | Physaria purpurea (A.Gray) O´Kane & Al-Shehbaz |
| | Physaria rectipes (Wooton & Standl.) O´Kane & Al-Shehbaz |
| | Physaria valida (Greene) 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 parvus S.F.Blake trib. Cichorieae |
| | Pinaropappus roseus (Less.) Less. trib. Cichorieae |
| | Plateilema palmeri Cockerell 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 pulcherrimum Hook. |
| | Polemonium viscosum Nutt. |
| | Porophyllum greggii A.Gray trib. Tageteae |
| | Potentilla atrorubens Rydb. |
| | Potentilla bicrenata Rydb. |
| | Potentilla concinna Richardson |
| | Potentilla crinita A.Gray |
| | Potentilla nivea L. |
| | Potentilla pensylvanica L. |
| | Potentilla plattensis Nutt. |
| | Potentilla proxima Rydb. |
| | Potentilla sierrae-blancae Wooton & Rydb. ex Rydb. |
| | Potentilla subjuga Rydb. |
| | Potentilla subviscosa Greene |
| | Potentilla thurberi A.Gray ex Lehm. |
| | Primula angustifolia Torr. sect. Parryi |
| | Primula meadia (L.) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula parryi A.Gray sect. Parryi |
| | Primula pauciflora (Durand) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula rusbyi Greene sect. Parryi |
| | Primula standleyana A.R.Mast & Reveal sect. Dodecatheon |
| | Psilostrophe sparsiflora (A.Gray) A.Nelson trib. Helenieae |
| | Psilostrophe tagetina (Nutt.) Greene trib. Helenieae |
| | Pulsatilla nuttalliana (DC.) Bercht. & J.Presl |
| | Pyrola asarifolia Michx. |
| | Pyrola chlorantha Sw. |
| | Pyrola elliptica Nutt. |
| | Pyrola minor L. |
| | Pyrola picta Sm. |
| | |
| | Ranunculus ellipticus Greene |
| | Ranunculus eschscholtzii Schltdl. |
| | Ranunculus fascicularis Muhl. ex Bigelow |
| | Ranunculus fasciculatus Sessé & Moc. |
| | Ranunculus inamoenus Greene |
| | Ranunculus macauleyi A.Gray |
| | Rhinotropis goliadensis (T.Wendt) P.M.Sl. |
| | Rhinotropis lindheimeri (A.Gray) J.R.Abbott |
| | Rhinotropis maravillasensis (Correll) J.R.Abbott |
| | Rhinotropis parvifolia (Wheelock) P.M.Sl. |
| | Rhinotropis rimulicola (Steyerm.) J.R.Abbott |
| | Rhinotropis subspinosa (S.Watson) J.R.Abbott |
| | Rhinotropis tamaulipana (T.Wendt) P.M.Sl. |
| | Rhodiola integrifolia Raf. |
| | Rhodiola neomexicana Britton |
| | Rhodiola rhodantha (A.Gray) H.Jacobsen |
| | Ribes curvatum Small |
| | Rumex venosus Pursh |
| | |
| | Sabulina macrantha (Rydb.) Dillenb. & Kadereit |
| | Sabulina rubella (Wahlenb.) Dillenb. & Kadereit |
| | Salix arizonica Dorn |
| | Salix atra Rydb. |
| | Salix boothii Dorn |
| | Salix brachycarpa Nutt. |
| | Salix nivalis Hook. |
| | Salix petrophila Rydb. |
| | Salvia engelmannii A.Gray |
| | Salvia lyrata L. |
| | Salvia summa A.Nelson |
| | Salvia texana (Scheele) Torr. |
| | Sanguinaria canadensis L. |
| | Sartwellia flaveriae A.Gray trib. Helenieae |
| | 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 |
| | Scabrethia scabra (Hook.) W.A.Weber trib. Heliantheae |
| | Schizotechium jamesianum (Torr.) Arabi, Rabeler & Zarre |
| | Scutellaria australis (Fasset) Epling |
| | Scutellaria brittonii Porter |
| | Scutellaria parvula Michx. |
| | Scutellaria resinosa Torr. |
| | Scutellaria wrightii A.Gray |
| | Sedum cockerellii Britton |
| | Sedum debile S.Watson |
| | Sedum havardii Rose |
| | Sedum lanceolatum Torr. |
| | Sedum nanifolium Fröd. |
| | Sedum pulchellum Michx. sect. Genuina |
| | Sedum robertsianum Alexander |
| | Sedum stelliforme S.Watson sect. Mexicali |
| | Sedum wrightii A.Gray sect. Genuina |
| | Senecio amplectens 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 |
| | Senega hemipterocarpa (A.Gray) J.F.B.Pastore & J.R.Abbott |
| | Senega scoparioides (Chodat) J.F.B.Pastore & J.R.Abbott |
| | Senega watsonii (Chodat) J.F.B.Pastore & J.R.Abbott |
| | Senna pumilio (A.Gray) H.S. Irwin & Barneby trib. Cassieae |
| | Sibbaldia procumbens L. |
| | Silene acaulis (L.) Jacq. |
| | Silene greggii A.Gray |
| | Silene hitchguirei Bocquet |
| | Silene laciniata Cav. |
| | Silene menziesii Hook. |
| | Silene plankii C.L.Hitchc. & Maguire |
| | Silene wherryi Small |
| | Silene wrightii A.Gray |
| | Solidago mollis Bartl. trib. Astereae |
| | Solidago multiradiata Aiton trib. Astereae |
| | Solidago nana Nutt. trib. Astereae |
| | Sphaeralcea coccinea (Nutt.) Rydb. |
| | Sphaeralcea elata (Baker f.) Rydb. |
| | Sphaeralcea hastulata A.Gray |
| | Sphaeralcea leptophylla (A.Gray) Rydb. |
| | Sphaeralcea parvifolia A.Nelson |
| | Sphaeralcea pedatifida (A.Gray) A.Gray |
| | Spigelia marilandica (L.) L. |
| | Stachys rothrockii A.Gray |
| | Stellaria irrigua Bunge |
| | Stellaria porsildii C.C.Chinnappa |
| | Stenotus armerioides Nutt. trib. Astereae |
| | Swertia perennis L. |
| | Symphyotrichum apricum (A.Gray) P.M.Sl. trib. Astereae |
| | Symphyotrichum fendleri (A.Gray) G.L.Nesom trib. Astereae |
| | Symphyotrichum parryi (D.C.Eaton) P.M.Sl. trib. Astereae |
| | Symphyotrichum porteri (A.Gray) G.L.Nesom trib. Astereae |
| | |
| | Taraxacum ceratophorum (Ledeb.) DC. trib. Cichorieae |
| | Tauschia texana A.Gray |
| | Telesonix jamesii (Torr.) Raf. |
| | Tetradymia canescens DC. trib. Senecioneae |
| | Tetradymia filifolia Greene trib. Senecioneae |
| | Tetraneuris acaulis (Pursh) Greene trib. Helenieae |
| | Tetraneuris argentea Greene trib. Helenieae |
| | Tetraneuris brevifolia Greene trib. Helenieae |
| | Tetraneuris ivesiana Greene trib. Helenieae |
| | Tetraneuris scaposa (DC.) Greene trib. Helenieae |
| | Teucrium laciniatum Torr. |
| | Thalictrum alpinum L. |
| | Thelesperma subnudum A.Gray trib. Coreopsidae |
| | Thermopsis rhombifolia (Pursh) Richardson trib. Thermopsideae |
| | Thymophylla acerosa (DC.) Strother |
| | Thymophylla greggii A.Gray |
| | Thymophylla micropoides (DC.) Strother |
| | Tiquilia canescens (DC.) A.T.Richardson |
| | Tiquilia hispidissima (Torr. & A.Gray) A.T.Richardson |
| | 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 formosa Greene trib. Astereae |
| | Townsendia grandiflora Nutt. trib. Astereae |
| | Townsendia gypsophila Lowrey & P.J.Knight trib. Astereae |
| | Townsendia incana Nutt. trib. Astereae |
| | Townsendia leptotes (A.Gray) Osterh. trib. Astereae |
| | Townsendia strigosa Nutt. trib. Astereae |
| | Townsendia texensis Larsen trib. Astereae |
| | Trifolium andinum Nutt. trib. Trifolieae |
| | Trifolium attenuatum Greene trib. Trifolieae |
| | Trifolium brandegeei S.Watson trib. Trifolieae |
| | Trifolium gymnocarpon Nutt. trib. Trifolieae |
| | Trifolium nanum Torr. trib. Trifolieae |
| | Trifolium neurophyllum Greene trib. Trifolieae |
| | Trifolium parryi A.Gray trib. Trifolieae |
| | Trifolium rusbyi Greene trib. Trifolieae |
| | Trifolium rydbergii Greene trib. Trifolieae |
| | Trifolium uintense Rydb. trib. Trifolieae |
| | |
| | Vaccinium cespitosum Michx. |
| | Vaccinium scoparium Leiberg ex Coville |
| | Valeriana arizonica A.Gray |
| | Valeriana texana Steyerm. |
| | Verbena bipinnatifida Schauer |
| | Verbena canadensis (L.) Britton |
| | Verbesina nana B.L.Rob. & Greenm. trib. Heliantheae |
| | Veronica besseya M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica oblongifolia (Pennell) M.M.Mart.Ort. & Albach subgen. Synthyris |
| | Veronica plantaginea E.James subgen. Synthyris |
| | Veronica wormskjoldii Roem. & Schult. subgen. Veronica |
| | Vesper bulbosus (A.Nelson) R.L.Hartm. & G.L.Nesom |
| | Vesper macrorhizus (Buckley) R.L.Hartm. & G.L.Nesom |
| | Vesper montanus (Torr. & A.Gray) R.L.Hartm. & G.L.Nesom |
| | Vesper multinervatus (J.M.Coult. & Rose) R.L.Hartm. |
| | Villadia squamulosa (S.Watson) Rose |
| | Viola adunca Sm. sect. Viola |
| | Viola calcicola R.A.McCauley & H.E.Ballard |
| | Viola canadensis L. sect. Viola |
| | Viola guadalupensis A.M.Powell & Wauer sect. Chamaemelanium |
| | Viola lanceolata L. sect. Viola |
| | Viola missouriensis Greene |
| | Viola nephrophylla Greene sect. Viola |
| | Viola nuttallii Pursh sect. Viola |
| | Viola palmata L. sect. Viola |
| | Viola pedata L. |
| | Viola pedatifida G.Don sect. Viola |
| | Viola primulifolia L. sect. Viola |
| | Viola pubescens Aiton sect. Viola |
| | Viola rugulosa Greene sect. Viola |
| | Viola sagittata Aiton |
| | Viola scopulorum (A.Gray) Greene sect. Viola |
| | Viola sororia Willd. sect. Viola |
| | Viola villosa Walter |
| | Viola walteri House |
| | |
| | Wyethia arizonica A.Gray trib. Heliantheae |
| | |
| | Xanthisma blephariphylla (A.Gray) D.R.Morgan & R.L.Hartm. trib. Astereae |
| | Xanthisma grindelioides (Nutt.) D.R.Morgan & R.L.Hartm. trib. Astereae |
| | |
| | Zinnia acerosa (DC.) A.Gray trib. Heliantheae |
| | Zinnia anomala A.Gray trib. Heliantheae |
| | Zinnia grandiflora Nutt. trib. Heliantheae |