| | |
| | Abronia elliptica A.Nelson |
| | Abronia fragrans Nutt. ex Hook. |
| | Abronia nana S.Watson |
| | Acmispon oroboides (Kunth) Brouillet trib. Loteae |
| | Actaea rubra (Aiton) Willd. |
| | Agoseris glauca (Pursh) Raf. trib. Cichorieae |
| | Agoseris parviflora (Nutt.) D.Dietr. trib. Cichorieae |
| | Agoseris purpurea (A.Gray) Greene |
| | Agoseris retrorsa (Benth.) Greene trib. Cichorieae |
| | 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 |
| | Anemone cylindrica A.Gray |
| | Anemone stylosa A.Nelson |
| | Anemone tuberosa Rydb. |
| | Antennaria arida E.E.Nelson trib. Gnaphalieae |
| | Antennaria confinis Greene trib. Gnaphalieae |
| | Antennaria marginata Greene trib. Gnaphalieae |
| | Antennaria media Greene trib. Gnaphalieae |
| | Antennaria microphylla Rydb. trib. Gnaphalieae |
| | Antennaria parvifolia Nutt. trib. Gnaphalieae |
| | Antennaria pulvinata Greene trib. Gnaphalieae |
| | Antennaria rosulata Rydb. trib. Gnaphalieae |
| | Antennaria umbrinella Rydb. trib. Gnaphalieae |
| | Aquilegia desertorum (M.E.Jones) Cockerell ex A.Heller |
| | Aquilegia elegantula Greene |
| | Aquilegia chrysantha A.Gray |
| | Aquilegia longissima A.Gray ex S.Watson |
| | Aquilegia micrantha Eastw. |
| | Aquilegia pinetorum Tidestr. |
| | Arctomecon californica Torr. & Frém. |
| | Arctostaphylos pungens Kunth |
| | Arctostaphylos uva-ursi (L.) Spreng. |
| | Arenaria saxosa A.Gray |
| | Arnica cordifolia Hook. trib. Heliantheae |
| | Arnica chamissonis Less. trib. Heliantheae |
| | Artemisia carruthii Alph.Wood ex J.H.Carruth trib. Anthemideae |
| | Artemisia frigida Willd. trib. Anthemideae |
| | Artemisia nova A.Nelson trib. Anthemideae |
| | Artemisia pygmaea 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 |
| | Astragalus amphioxys A.Gray trib. Galegeae |
| | Astragalus atwoodii S.L.Welsh & Thorne trib. Galegeae |
| | Astragalus bigelovii A.Gray trib. Galegeae |
| | Astragalus blyae (Rose) Tidestr. trib. Galegeae |
| | Astragalus brandegeei Porter & J.M.Coulter trib. Galegeae |
| | Astragalus calycosus Torr. ex S.Watson |
| | Astragalus castaneiformis S.Watson trib. Galegeae |
| | Astragalus ceramicus E.Sheld. trib. Galegeae |
| | Astragalus cobrensis A.Gray trib. Galegeae |
| | Astragalus coccineus (Parry) Brandegee |
| | Astragalus cottamii S.L.Welsh trib. Galegeae |
| | Astragalus cremnophylax Barneby |
| | Astragalus curtilobus Tidestr. trib. Galegeae |
| | Astragalus desperatus M.E.Jones trib. Galegeae |
| | Astragalus diphysus A.Gray trib. Galegeae |
| | Astragalus egglestonii (Rydb.) Kearney & Peebles trib. Galegeae |
| | Astragalus ensiformis 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 gilensis Greene |
| | Astragalus hallii A.Gray |
| | 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 chloridae (M.E.Jones) Tidestr. trib. Galegeae |
| | Astragalus chuskanus Barneby & Spellenb. |
| | Astragalus impensus (E.Sheld.) Wooton & Standl. trib. Galegeae |
| | Astragalus layneae Greene trib. Galegeae |
| | Astragalus moencoppensis M.E.Jones |
| | Astragalus mogollonicus Greene trib. Galegeae |
| | Astragalus monumentalis Barneby trib. Galegeae |
| | Astragalus musiniensis M.E.Jones |
| | Astragalus newberryi A.Gray trib. Galegeae |
| | Astragalus nutriosensis S.C.Sand. trib. Galegeae |
| | Astragalus oophorus S.Watson trib. Galegeae |
| | Astragalus palans M.E.Jones trib. Galegeae |
| | Astragalus panguicensis (M.E.Jones) M.E.Jones |
| | Astragalus pinonis M.E.Jones trib. Galegeae |
| | Astragalus preussii A.Gray |
| | Astragalus recurvus Greene trib. Galegeae |
| | Astragalus rydbergii J.F.Macbr. trib. Galegeae |
| | Astragalus scaposus A.Gray |
| | Astragalus sesquiflorus S.Watson trib. Galegeae |
| | Astragalus sonorae A.Gray trib. Galegeae |
| | Astragalus sophoroides M.E.Jones trib. Galegeae |
| | Astragalus straturensis M.E.Jones trib. Galegeae |
| | Astragalus striatiflorus M.E.Jones trib. Galegeae |
| | Astragalus subcinereus A.Gray trib. Galegeae |
| | Astragalus tephrodes A.Gray trib. Galegeae |
| | Astragalus tetrapterus A.Gray |
| | Astragalus thompsoniae S.Watson trib. Galegeae |
| | Astragalus troglodytus S.Watson trib. Galegeae |
| | Astragalus vespertinus E.Sheld. trib. Galegeae |
| | Astragalus wilsonii Greene trib. Galegeae |
| | Astragalus wingatanus S.Watson |
| | Astragalus zionis M.E.Jones |
| | Atriplex confertifolia (Torr. & Frémont) S.Watson |
| | |
| | Balsamorhiza hispidula W.M.Sharp trib. Heliantheae |
| | Berberis repens Lindl. |
| | Bistorta vivipara (L.) Delarbre |
| | Boechera centrifendleri P.J.Alexander |
| | Boechera fendleri (S.Watson) W.A.Weber |
| | Boechera gracilipes (Greene) Dorn |
| | Boechera kelseyana Windham & Allphin |
| | Boechera pendulina (Greene) W.A.Weber |
| | Boechera perennans (S.Watson) W.A.Weber |
| | Brickellia arguta B.L.Rob. trib. Eupatorieae |
| | Brickellia atractyloides A.Gray trib. Eupatorieae |
| | Brickellia linifolia D.C.Eaton trib. Eupatorieae |
| | Brickellia microphylla (Nutt.) A.Gray trib. Eupatorieae |
| | Brickellia parvula A.Gray trib. Eupatorieae |
| | Buddleja utahensis Coville |
| | |
| | Caltha leptosepala DC. |
| | Campanula parryi A.Gray |
| | Castilleja integra A.Gray |
| | Castilleja lanata A.Gray |
| | Castilleja miniata Douglas ex Hook. |
| | Castilleja scabrida Eastw. |
| | Ceanothus fendleri A.Gray |
| | Ceanothus integerrimus Hook. & Arn. |
| | Ceanothus martini M.E.Jones |
| | Cerastium beeringianum Cham. & Schltdl. |
| | Claytonia lanceolata Pursh |
| | Claytonia rosea Rydb. |
| | Clematis bigelovii Torr. |
| | Clematis columbiana (Nutt.) Torr. & A.Gray |
| | Clematis hirsutissima Pursh |
| | Collomia debilis (S.Watson) Greene |
| | Crepis occidentalis Nutt. trib. Cichorieae |
| | Cryptantha abata I.M.Johnst. |
| | Cymopterus alpinus A.Gray |
| | Cymopterus davidsonii (J.M.Coult. & Rose) R.L.Hartm. |
| | Cymopterus fendleri A.Gray |
| | Cymopterus glomeratus (Nutt.) DC. |
| | Cymopterus jonesii J.M.Coult. & Rose |
| | Cymopterus lemmonii (J.M.Coult. & Rose) Dorn |
| | Cymopterus macdougalii (J.M.Coult. & Rose) Tidestr. |
| | Cymopterus megacephalus M.E.Jones |
| | Cymopterus newberryi (S.Watson) M.E.Jones |
| | Cymopterus petraeus M.E.Jones |
| | Cymopterus purpureus S.Watson |
| | 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 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 nuttallianum Pritz. ex Walp. |
| | Delphinium scaposum Greene |
| | Draba abajoensis Windham & Al-Shehbaz |
| | Draba albertina Greene |
| | Draba asprella Greene sect. Chrysodraba |
| | Draba aurea Vahl ex Hornem. sect. Phyllodraba |
| | Draba crassifolia Graham |
| | Draba petrophila Greene |
| | Draba standleyi J.F.Macbr. & Payson |
| | Draba viridis A.Heller |
| | Dudleya arizonica Rose |
| | Dudleya collomiae Rose |
| | |
| | Enceliopsis argophylla A.Nelson trib. Heliantheae |
| | Enceliopsis nudicaulis A.Nelson trib. Heliantheae |
| | Epilobium arizonicum (Davidson) P.M.Sl. |
| | Epilobium glaberrimum Barbey |
| | Epilobium hallianum Hausskn. |
| | Epilobium lactiflorum Hausskn. |
| | Epilobium nevadense Munz |
| | Epilobium oregonense Hausskn. |
| | Epilobium saximontanum Hausskn. |
| | Eremogone aberrans (M.E.Jones) Ikonn. |
| | Eremogone eastwoodiae (Rydb.) Ikonn. |
| | Eremogone fendleri (A.Gray) Ikonn. |
| | Eremogone ferrisiae (Abrams) R.L.Hartm. & Rabeler |
| | Eremogone macradenia (S.Watson) Ikonn. |
| | Eremogone uintahensis (A.Nelson) P.M.Sl. |
| | Ericameria cuneata (A.Gray) McClatchie trib. Astereae |
| | Ericameria laricifolia (A.Gray) Shinners trib. Astereae |
| | Ericameria watsonii (A.Gray) G.L.Nesom trib. Astereae |
| | Erigeron abajoensis Cronquist trib. Astereae |
| | Erigeron anchana G.L.Nesom trib. Astereae |
| | Erigeron aphanactis Greene trib. Astereae |
| | Erigeron argentatus A.Gray 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 eatonii A.Gray trib. Astereae |
| | Erigeron flagellaris A.Gray trib. Astereae |
| | Erigeron formosissimus Greene trib. Astereae |
| | Erigeron grandiflorus Hook. trib. Astereae |
| | Erigeron heliographis G.L.Nesom trib. Astereae |
| | Erigeron kuschei Eastw. trib. Astereae |
| | Erigeron lemmonii A.Gray trib. Astereae |
| | Erigeron oxyphyllus Greene trib. Astereae |
| | Erigeron pringlei A.Gray trib. Astereae |
| | Erigeron pulcherrimus A.Heller trib. Astereae |
| | Erigeron saxatilis G.L.Nesom trib. Astereae |
| | Erigeron scopulinus G.L.Nesom & V.D.Roth trib. Astereae |
| | Erigeron sivinskii G.L.Nesom trib. Astereae |
| | Erigeron tener (A.Gray) A.Gray trib. Astereae |
| | Erigeron ursinus D.C.Eaton trib. Astereae |
| | Erigeron utahensis A.Gray trib. Astereae |
| | Erigeron viscidus Rydb. trib. Astereae |
| | Eriogonum arcuatum Greene sect. Oligogonum |
| | Eriogonum caespitosum Nutt. sect. Oligogonum |
| | Eriogonum cognatum Greene sect. Oligogonum |
| | Eriogonum corymbosum Benth. sect. Eucycla |
| | Eriogonum ericifolium A.Gray sect. Eucycla |
| | Eriogonum heermannii Durand & Hilg. sect. Eucycla |
| | Eriogonum jamesii Benth. sect. Oligogonum |
| | Eriogonum jonesi S.Watson sect. Eucycla |
| | Eriogonum laxiflorum (Hook.) Nutt. ex Benth. |
| | Eriogonum leptophyllum (Torr.) Wooton & Standl. sect. Eucycla |
| | Eriogonum nodosum Small sect. Eucycla |
| | Eriogonum panamintense C.V.Morton sect. Eucycla |
| | Eriogonum polifolium Benth. sect. Eucycla |
| | Eriogonum pulchrum Eastw. sect. Eucycla |
| | Eriogonum purpureum (Nutt.) Nutt. ex Benth. sect. Eucycla |
| | Eriogonum racemosum Nutt. sect. Eucycla |
| | Eriogonum ripleyi J.T.Howell sect. Eucycla |
| | Eriogonum sarahiae N.D.Atwood & A.Clifford sect. Eucycla |
| | Eriogonum shockleyi S.Watson sect. Eucycla |
| | Eriogonum simpsonii Benth. |
| | Eriogonum sulcatum S.Watson |
| | Eriogonum terrenatum Reveal sect. Eucycla |
| | Eriogonum undulatum Benth. sect. Oligogonum |
| | Eriogonum wrightii Torr. ex Benth. sect. Eucycla |
| | Eriogonum zionis var. coccineum J.T.Howell |
| | Erysimum amoenum (Greene) Rydb. |
| | Erysimum capitatum (Douglas) Greene |
| | Erythranthe cinnabarina G.L.Nesom |
| | Erythranthe eastwoodiae (Rydb.) G.L.Nesom & N.S.Fraga |
| | Erythranthe geyeri (Torr.) 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 brachycera Engelm. |
| | Euphorbia fendleri Torr. & A.Gray |
| | Euphorbia chaetocalyx (Boiss.) Tidestr. |
| | Euphorbia lurida Engelm. |
| | Euphorbia melanadenia Torr. & A.Gray |
| | Euphorbia radians Benth. |
| | Evolvulus nuttallianus Roem. & Schult. |
| | |
| | Fallugia paradoxa (D.Don ex Tilloch) Endl. ex Torr. |
| | Frasera albomarginata S.Watson |
| | Frasera parryi Torr. |
| | |
| | Gaillardia multiceps Greene trib. Heliantheae |
| | Gaillardia parryi Greene trib. Heliantheae |
| | Gaillardia pinnatifida Torr. trib. Heliantheae |
| | Galium coloradoense W.Wight |
| | Gentiana affinis Griseb. sect. Pneumonanthe |
| | Gentiana parryi Engelm. sect. Pneumonanthe |
| | Gentianopsis barbellata (Engelm.) Iltis |
| | Geranium caespitosum E.James |
| | Geranium richardsonii Fisch. & Trautv. |
| | Geranium wislizeni S.Watson |
| | Geum rossii (R.Br.) Ser. |
| | Geum triflorum Pursh |
| | Giliastrum acerosum (A.Gray) Rydb. |
| | Graptopetalum bartramii Rose |
| | Graptopetalum rusbyi (Greene) Rose |
| | Grayia spinosa (Hook.) Moq. |
| | Gutierrezia sarothrae (Pursh) Britton & Rusby trib. Astereae |
| | Gutierrezia serotina Greene trib. Astereae |
| | |
| | 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 parryi A.Gray trib. Heliantheae |
| | Helianthus arizonensis R.C.Jacks. |
| | Hesperochiron pumilus (Griseb.) Porter |
| | Heterotheca hirsutissima (Greene) G.L.Nesom trib. Astereae |
| | Heterotheca polothrix G.L.Nesom trib. Astereae |
| | Heterotheca viscida (A.Gray) V.L.Harms trib. Astereae |
| | Heuchera eastwoodiae Rosend., Butters & Lakela |
| | Heuchera glomerulata Rosend., Butters & Lakela |
| | Heuchera novomexicana Wheelock |
| | Heuchera parvifolia Nutt. |
| | Heuchera rubescens Torr. |
| | Heuchera sanguinea Engelm. |
| | Hieracium brevipilum Greene |
| | Houstonia rubra Cav. |
| | Houstonia wrightii A.Gray |
| | Hydrophyllum occidentale (S.Watson) A.Gray |
| | 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 helenioides (Rydb.) 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 scouleri Hook. sect. Hypericum |
| | |
| | Chaenactis douglasii Hook. & Arn. trib. Helenieae |
| | Chaetopappa ericoides (Torr.) G.L.Nesom trib. Astereae |
| | Chamaechaenactis scaposa Rydb. trib. Helenieae |
| | Cherleria obtusiloba (Rydb.) A.J.Moore & Dillenb. |
| | Chimaphila maculata (L.) Pursh |
| | Chimaphila umbellata (L.) W.P.C.Barton |
| | Chrysothamnus axillaris D.D.Keck trib. Astereae |
| | Chrysothamnus depressus (Nutt.) L.C.Anderson trib. Astereae |
| | Chrysothamnus lanceolatus Nutt. trib. Astereae |
| | Chrysothamnus molestus (S.F.Blake) L.C.Anderson trib. Astereae |
| | Chrysothamnus viscidiflorus Nutt. trib. Astereae |
| | |
| | Ipomopsis arizonica (Greene) Wherry |
| | Ipomopsis congesta (Hook.) V.E.Grant |
| | Ipomopsis longiflora (Torr.) V.E.Grant |
| | Ipomopsis tenuituba (Rydb.) V.E.Grant |
| | |
| | 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 lemmonii A.Gray trib. Heliantheae |
| | Laphamia saxicola Eastw. trib. Heliantheae |
| | Lathyrus zionis C.L.Hitch. trib. Vicieae |
| | Lepidium integrifolium Nutt. |
| | Lepidium montanum Nutt. |
| | Leptosiphon nuttallii (A.Gray) J.M.Porter & L.A.Johnson |
| | Lewisia brachycalyx Engelm. ex A.Gray sect. Pygmaea |
| | Lewisia nevadensis (A.Gray) B.L.Rob. sect. Pygmaea |
| | Lewisia pygmaea (A.Gray) B.L.Rob. sect. Pygmaea |
| | Lewisia rediviva Pursh sect. Rediviva |
| | Linanthus pungens (Torr.) J.M.Porter & L.A.Johnson |
| | Linanthus watsonii (A.Gray) Wherry |
| | Linum lewisii Pursh |
| | Linum subteres (Trel.) H.J.P.Winkl. |
| | Lithophragma tenellum Nutt. |
| | Lithospermum incisum Lehm. |
| | Lomatium macdougalii J.M.Coult. & Rose |
| | Lomatium mohavense (J.M.Coult. & Rose) 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 |
| | Lomatium scabrum (J.M.Coult. & Rose) Mathias |
| | Lonicera interrupta Benth. |
| | Lupinus argenteus Pursh trib. Genisteae |
| | Lupinus aridus Douglas trib. Genisteae |
| | Lupinus breweri A.Gray trib. Genisteae |
| | Lupinus laxiflorus Douglass ex Lindl. trib. Genisteae |
| | Lupinus palmeri S.Watson trib. Genisteae |
| | Lupinus sericeus Pursh trib. Genisteae |
| | Lygodesmia juncea (Pursh) D.Don ex Hook. trib. Cichorieae |
| | |
| | Mabrya acerifolia (Pennell) Elisens |
| | Marina calycosa (A.Gray) Barneby trib. Amorpheae |
| | Melampodium leucanthum Torr. & A.Gray trib. Heliantheae |
| | Menodora scabra Engelm. ex A.Gray |
| | Mentzelia laevicaulis (Douglas ex Hook.) Torr. & A.Gray |
| | Mentzelia oligosperma Nutt. ex Sims |
| | Mertensia arizonica Greene |
| | Mertensia ciliata (E.James ex Torr.) G.Don |
| | Mertensia franciscana A.Heller |
| | Micranthes eriophora (S.Watson) Small sect. Dermasea |
| | Micranthes rhomboidea (Greene) Small sect. Micranthes |
| | Monarda fistulosa L. |
| | Monarda menthifolia Graham |
| | Monardella glauca Greene |
| | Moneses uniflora (L.) A.Gray |
| | Montia chamissoi (Ledeb. ex Spreng.) Greene |
| | |
| | Nama rothrockii A.Gray |
| | Noccaea fendleri (A.Gray) Holub |
| | Noccaea glauca (A.Nelson) Holub |
| | |
| | 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 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 |
| | Oreocarya bakeri Greene |
| | Oreocarya cinerea Greene |
| | Oreocarya confertiflora Greene |
| | Oreocarya flava A.Nelson |
| | Oreocarya flavoculata A.Nelson |
| | Oreocarya fulvocanescens (S.Watson) Greene |
| | Oreocarya humilis (A.Gray) Greene |
| | Oreocarya nitida Greene |
| | Oreocarya osterhoutii Payson |
| | Oreocarya shackletteana (L.C..Higgins) R.B.Kelley |
| | Oreocarya suffruticosa (Torr.) Greene |
| | Orthilia secunda (L.) House |
| | Oxalis caerulea (Small) R.Knuth |
| | Oxalis decaphylla Kunth |
| | Oxalis metcalfei (Small) R.Knuth |
| | Oxyria digyna (L.) Hill |
| | Oxytropis juniperina (S.L.Welsh) P.M.Sl. |
| | Oxytropis oreophila A.Gray trib. Galegeae |
| | Oxytropis patens (Rydb.) A.Nelson trib. Galegeae |
| | |
| | Packera actinella (Greene) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera cana (Hook.) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera franciscana (Greene) W.A.Weber & Á.Löve trib. Senecioneae |
| | Packera werneriifolia (A.Gray) W.A.Weber & Á.Löve trib. Senecioneae |
| | Parnassia palustris L. |
| | Parnassia parviflora DC. |
| | Paxistima myrsinites (Pursh) Raf. |
| | Pectis longipes A.Gray trib. Tageteae |
| | Pedicularis centranthera A.Gray |
| | Pedicularis racemosa Douglas ex Benth. |
| | 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 aggregatus Pennell sect. Penstemon |
| | Penstemon albomarginatus M.E.Jones sect. Penstemon |
| | Penstemon ambiguus Torr. sect. Ambigui |
| | Penstemon angustifolius Nutt. ex Pursh sect. Coerulei |
| | Penstemon breviculus (D.D.Keck) G.T.Nisbet & R.C.Jacks. sect. Cristati |
| | Penstemon clutei A.Nelson sect. Spectabiles |
| | Penstemon coloradoensis A.Nelson sect. Caespitosi |
| | Penstemon comarrhenus A.Gray sect. Glabri |
| | Penstemon confusus M.E.Jones sect. Gentianoides |
| | Penstemon congestus (M.E.Jones) Pennell sect. Coerulei |
| | Penstemon dasyphyllus A.Gray sect. Chamaeleon |
| | Penstemon deaveri Crosswh. sect. Glabri |
| | Penstemon desertipicti A.Nelson sect. Caespitosi |
| | Penstemon discolor D.D.Keck sect. Caespitosi |
| | Penstemon distans N.H.Holmgren sect. Cristati |
| | Penstemon fendleri Torr. & A.Gray sect. Coerulei |
| | Penstemon higginsii (Neese) N.H.Holmgren & N.D.Atwood sect. Saccanthera |
| | Penstemon laevis Pennell sect. Glabri |
| | Penstemon lentus Pennell sect. Coerulei |
| | Penstemon linarioides A.Gray sect. Caespitosi |
| | Penstemon nudiflorus A.Gray sect. Glabri |
| | Penstemon oliganthus Wooton & Standl. sect. Penstemon |
| | Penstemon ophianthus Pennell sect. Cristati |
| | Penstemon palmeri A.Gray sect. Spectabiles |
| | Penstemon parryi (A.Gray) A.Gray sect. Gentianoides |
| | Penstemon petiolatus Brandegee sect. Petiolati |
| | Penstemon pinifolius Greene sect. Caespitosi |
| | Penstemon pseudoputus (Crosswh.) N.H.Holmgren sect. Glabri |
| | Penstemon putus A.Nelson sect. Glabri |
| | Penstemon rostriflorus Kellogg sect. Bridgesiani |
| | Penstemon sileri (A.Gray) P.M.Sl. sect. Caespitosi |
| | Penstemon strictiformis Rydb. sect. Glabri |
| | Penstemon strictus Benth. sect. Glabri |
| | Penstemon subulatus M.E.Jones sect. Gentianoides |
| | Penstemon superbus A.Nelson sect. Gentianoides |
| | Penstemon thompsoniae (A.Gray) Rydb. sect. Caespitosi |
| | Penstemon thurberi Torr. sect. Ambigui |
| | Penstemon utahensis Eastw. sect. Gentianoides |
| | Penstemon venosus (D.D.Keck) Reveal sect. Coerulei |
| | Penstemon virgatus A.Gray sect. Glabri |
| | Penstemon watsonii A.Gray sect. Penstemon |
| | Penstemon whippleanus A.Gray sect. Penstemon |
| | 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 |
| | Petradoria graminea Wooton & Standl. trib. Astereae |
| | Petradoria pumila (Nutt.) Greene trib. Astereae |
| | Petrophytum caespitosum (Nutt.) Rydb. |
| | 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 validulus (Greene) Kiger |
| | Phlox amabilis Brand Protophlox, Tenuifoliae |
| | Phlox austromontana Coville Microphlox, Canescentes |
| | Phlox canescens Torr. & A.Gray Microphlox, Canescentes |
| | Phlox cluteana A.Nelson Alphaphlox, Cluteanae |
| | Phlox densa Brand Microphlox, Canescentes |
| | Phlox griseola Wherry Microphlox, Caespitosae |
| | Phlox hoodii Richardson Microphlox, Canescentes |
| | Phlox longifolia Nutt. Alphaphlox, Longifoliae |
| | Phlox nana Nutt. Protophlox, Nanae |
| | Phlox tenuifolia E.E.Nelson Protophlox, Tenuifoliae |
| | Phlox viscida E.E.Nelson Alphaphlox, Longifoliae |
| | Phlox woodhousei (A.Gray) E.E.Nelson Protophlox, Speciosae |
| | Phyla cuneifolia (Torr.) Greene |
| | Phyla lanceolata (Michx.) Greene |
| | Phyllodoce empetriformis (Sm.) D.Don |
| | Physaria acutifolia Rydb. |
| | Physaria arizonica (S.Watson) O´Kane & Al-Shehbaz |
| | Physaria cinerea (S.Watson) O´Kane & Al-Shehbaz |
| | Physaria fendleri (A.Gray) O´Kane & Al-Shehbaz |
| | Physaria chambersii Rollins |
| | Physaria intermedia (S.Watson) O´Kane & Al-Shehbaz |
| | Physaria kaibabensis (Rollins) N.H.Holmgren |
| | Physaria ludoviciana (Nutt.) O´Kane & Al-Shehbaz |
| | Physaria montana (A.Gray) Greene |
| | Physaria navajoensis (O'Kane) O'Kane & Al-Shehbaz |
| | Physaria newberryi A.Gray |
| | Physaria pinetorum (Wooton & Standl.) O´Kane & Al-Shehbaz |
| | Physaria purpurea (A.Gray) O´Kane & Al-Shehbaz |
| | Physaria rectipes (Wooton & Standl.) 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 |
| | Platyschkuhria integrifolia (A.Gray) Rydb. trib. Helenieae |
| | Pleiacanthus spinosus (Nutt.) Rydb. trib. Cichorieae |
| | Polemonium delicatum Rydb. |
| | Polemonium pauciflorum S.Watson |
| | Polemonium viscosum Nutt. |
| | Potentilla albiflora L.O.Williams |
| | Potentilla arizonica Greene |
| | Potentilla atrorubens Rydb. |
| | Potentilla bicrenata Rydb. |
| | Potentilla concinna Richardson |
| | Potentilla crinita A.Gray |
| | Potentilla demotica Ertter |
| | Potentilla jepsonii Ertter |
| | Potentilla nivea L. |
| | Potentilla osterhoutii (A.Nelson) J.T.Howell |
| | Potentilla pensylvanica L. |
| | Potentilla plattensis Nutt. |
| | Potentilla proxima Rydb. |
| | Potentilla ramulosa Rydb. |
| | Potentilla rhyolitica Ertter |
| | Potentilla sabulosa M.E.Jones |
| | Potentilla subviscosa Greene |
| | Potentilla thurberi A.Gray ex Lehm. |
| | Primula parryi A.Gray sect. Parryi |
| | Primula pauciflora (Durand) A.R.Mast & Reveal sect. Dodecatheon |
| | Primula rusbyi Greene sect. Parryi |
| | Primula specuicola Rydb. sect. Farinosae |
| | Primula standleyana A.R.Mast & Reveal sect. Dodecatheon |
| | Primula tetrandra (Suksd.) 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 |
| | Pyrola elliptica Nutt. |
| | Pyrola minor L. |
| | Pyrola picta Sm. |
| | |
| | Ranunculus ellipticus Greene |
| | Ranunculus eschscholtzii Schltdl. |
| | Ranunculus eximius Greene |
| | Ranunculus fasciculatus Sessé & Moc. |
| | Ranunculus inamoenus Greene |
| | Ranunculus subaffinis (A.Gray) Rydb. |
| | Rhinotropis acanthoclada (A.Gray) J.R.Abbott |
| | Rhinotropis intermontana (T.Wendt) J.R.Abbott |
| | Rhinotropis parvifolia (Wheelock) P.M.Sl. |
| | Rhinotropis rusbyi (Greene) J.R.Abbott |
| | Rhinotropis subspinosa (S.Watson) J.R.Abbott |
| | Rhodiola rhodantha (A.Gray) H.Jacobsen |
| | Rumex venosus Pursh |
| | |
| | Sabulina macrantha (Rydb.) Dillenb. & Kadereit |
| | Sabulina rubella (Wahlenb.) Dillenb. & Kadereit |
| | Salix arizonica Dorn |
| | Salix boothii Dorn |
| | Salvia dorrii (Kellogg) Abrams |
| | Saxifraga cespitosa L. sect. Saxifraga |
| | Saxifraga crandallii Gand. sect. Ciliatae |
| | Saxifraga hyperborea R.Br. sect. Mesogyne |
| | Scabrethia scabra (Hook.) W.A.Weber trib. Heliantheae |
| | Scopulophila rixfordii (Brandegee) Munz & I.M.Johnst. |
| | Sedum cockerellii Britton |
| | Sedum lanceolatum Torr. |
| | Sedum stelliforme S.Watson sect. Mexicali |
| | 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 |
| | Schizotechium jamesianum (Torr.) Arabi, Rabeler & Zarre |
| | Sibbaldia procumbens L. |
| | Silene acaulis (L.) Jacq. |
| | Silene greggii A.Gray |
| | Silene menziesii Hook. |
| | Solidago multiradiata Aiton trib. Astereae |
| | Solidago nana Nutt. trib. Astereae |
| | Sphaeralcea coccinea (Nutt.) Rydb. |
| | Sphaeralcea hastulata A.Gray |
| | Sphaeralcea leptophylla (A.Gray) Rydb. |
| | Sphaeralcea parvifolia A.Nelson |
| | Stachys rothrockii A.Gray |
| | Stellaria irrigua Bunge |
| | Stellaria porsildii C.C.Chinnappa |
| | Stenotus acaulis (Nutt.) Nutt. trib. Astereae |
| | Stenotus armerioides Nutt. trib. Astereae |
| | Stephanomeria parryi A.Gray trib. Cichorieae |
| | Swertia perennis L. |
| | Symphyotrichum apricum (A.Gray) P.M.Sl. trib. Astereae |
| | Symphyotrichum potosinum (A.Gray) G.L.Nesom trib. Astereae |
| | |
| | Tetradymia canescens DC. trib. Senecioneae |
| | Tetraneuris argentea Greene trib. Helenieae |
| | Tetraneuris arizonica Greene trib. Helenieae |
| | Tetraneuris ivesiana Greene trib. Helenieae |
| | Tetraneuris verdiensis R.A.Denham & B.L.Turner trib. Helenieae |
| | Teucrium laciniatum Torr. |
| | Thelesperma subnudum A.Gray trib. Coreopsidae |
| | Thymophylla acerosa (DC.) Strother |
| | 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 |
| | Townsendia exscapa (Richardson) Porter trib. Astereae |
| | Townsendia formosa Greene trib. Astereae |
| | Townsendia incana Nutt. trib. Astereae |
| | Townsendia jonesii (Beaman) Reveal trib. Astereae |
| | Townsendia smithii L.M.Shultz & A.H.Holmgren trib. Astereae |
| | Townsendia strigosa Nutt. trib. Astereae |
| | Tricardia watsonii Torr. ex S.Watson |
| | Trifolium andinum Nutt. trib. Trifolieae |
| | Trifolium gymnocarpon Nutt. trib. Trifolieae |
| | Trifolium neurophyllum Greene trib. Trifolieae |
| | Trifolium rusbyi Greene trib. Trifolieae |
| | Trifolium rydbergii Greene trib. Trifolieae |
| | |
| | Vaccinium membranaceum Douglas ex Torr. |
| | Valeriana arizonica A.Gray |
| | Verbena bipinnatifida Schauer |
| | Veronica plantaginea E.James subgen. Synthyris |
| | Veronica wormskjoldii Roem. & Schult. subgen. Veronica |
| | 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 canadensis L. sect. Viola |
| | Viola macloskeyi F.E.Lloyd sect. Viola |
| | Viola nephrophylla Greene sect. Viola |
| | Viola nuttallii Pursh sect. Viola |
| | Viola pedatifida G.Don sect. Viola |
| | Viola rugulosa Greene sect. Viola |
| | Viola scopulorum (A.Gray) Greene sect. Viola |
| | Viola umbraticola Kunth |
| | Viola venosa (S.Watson) Rydb. |
| | |
| | Wyethia arizonica A.Gray trib. Heliantheae |
| | Wyethia sagittata (Pursh) Mabb. trib. Heliantheae |
| | |
| | Xanthisma grindelioides (Nutt.) D.R.Morgan & R.L.Hartm. trib. Astereae |
| | |
| | Zinnia acerosa (DC.) A.Gray trib. Heliantheae |
| | Zinnia grandiflora Nutt. trib. Heliantheae |