870 Records
| Citation | Family Name |
| Abronia elliptica A. Nelson |
NYCTAGINACEAE |
| Acer glabrum Torrey |
ACERACEAE |
| Acetosella paucifolia (Nuttall) Löve |
POLYGONACEAE |
| Achillea lanulosa Nuttall |
ASTERACEAE |
| Achnatherum hymenoides (Roemer & Schultes) Barkworth |
POACEAE |
| Achnatherum lettermanii (Vasey) Barkworth |
POACEAE |
| Achnatherum nelsonii (Scribner) Barkworth |
POACEAE |
| Acrolasia albicaulis (Douglas ex Hooker) Rydberg |
LOASACEAE |
| Acrolasia gracilis Rydberg |
LOASACEAE |
| Acrolasia humilis Osterhout |
LOASACEAE |
| Acroptilon repens (L.) De Candolle |
ASTERACEAE |
| Adenolinum lewisii (Pursh) Löve & Löve |
LINACEAE |
| Agoseris aurantiaca (Hooker) Greene |
ASTERACEAE |
| Agoseris glauca (Pursh) Rafinesque |
ASTERACEAE |
| Agoseris glauca (Pursh) Rafinesque var laciniata (D. C. Eaton) Smiley |
ASTERACEAE |
| Agoseris heterophylla (Nuttall) Greene |
ASTERACEAE |
| Agropyron desertorum Fischer ex Link |
POACEAE |
| Agropyron pectiniforme Roemer & Schultes |
POACEAE |
| Agrostis exarata Trinius |
POACEAE |
| Agrostis gigantea Roth |
POACEAE |
| Agrostis scabra Willdenow |
POACEAE |
| Aletes petraeus (Jones) W. A. Weber |
APIACEAE |
| Aliciella leptomeria (A. Gray) J.M. Porter |
POLEMONIACEAE |
| Aliciella mcvickerae (M.E. Jones) J.M. Porter |
POLEMONIACEAE |
| Aliciella pinnatifida (Nuttall ex A. Gray) J.M. Porter |
POLEMONIACEAE |
| Aliciella stenothyrsa (A. Gray) J.M. Porter |
POLEMONIACEAE |
| Aliciella triodon (Eastwood) A. Brand |
POLEMONIACEAE |
| Alisma gramineum Lejeune |
ALISMATACEAE |
| Allium acuminatum Hooker |
ALLIACEAE |
| Allium brandegei S. Watson |
ALLIACEAE |
| Allium cernuum Roth |
ALLIACEAE |
| Allium geyeri S. Watson |
ALLIACEAE |
| Allium nevadense S. Watson |
ALLIACEAE |
| Allium rubrum Osterhout |
ALLIACEAE |
| Allium textile Nelson & Macbride |
ALLIACEAE |
| Alopecurus aequalis Sobolewski |
POACEAE |
| Alyssum desertorum Stapf |
BRASSICACEAE |
| Amaranthus blitoides S. Watson |
AMARANTHACEAE |
| Amaranthus retroflexus L. |
AMARANTHACEAE |
| Ambrosia acanthicarpa Hooker |
ASTERACEAE |
| Ambrosia tomentosa Nuttall |
ASTERACEAE |
| Amelanchier alnifolia Nuttall |
ROSACEAE |
| Amelanchier utahensis Koehne |
ROSACEAE |
| Amerosedum lanceolatum (Torrey) Löve & Löve |
CRASSULACEAE |
| Anaphalis margaritacea (L.) Bentham & Hooker |
ASTERACEAE |
| Androsace occidentalis Pursh |
PRIMULACEAE |
| Androsace septentrionalis L. |
PRIMULACEAE |
| Androstephium breviflorum S. Watson |
ALLIACEAE |
| Angelica pinnata S. Watson |
APIACEAE |
| Anisantha tectorum (L.) Nevski |
POACEAE |
| Antennaria dimorpha (Nuttall) Torrey & Gray |
ASTERACEAE |
| Antennaria microphylla Rydberg |
ASTERACEAE |
| Antennaria parvifolia Nuttall |
ASTERACEAE |
| Antennaria pulcherrima (Hooker) Greene ssp anaphaloides (Rydberg) W. A. Weber |
ASTERACEAE |
| Antennaria rosea Greene |
ASTERACEAE |
| Anticlea vaginata Rydberg |
MELANTHIACEAE |
| Aphyllon fasciculatum (Nuttall) Torrey & Gray |
OROBANCHACEAE |
| Aphyllon uniflorum (L.) Torrey & Gray |
OROBANCHACEAE |
| Apocynum cannabinum L. |
APOCYNACEAE |
| Aquilegia micrantha Eastwood |
HELLEBORACEAE |
| Arabis hirsuta (L.) Scopoli var glabrata Torrey & Gray |
BRASSICACEAE |
| Arabis hirsuta (L.) Scopoli var pycnocarpa (Hopkins) Rollins |
BRASSICACEAE |
| Arceuthobium americanum Nuttall ex Engelmann |
VISCACEAE |
| Arceuthobium cyanocarpum Coulter & Nelson |
VISCACEAE |
| Arctium minus (J. Hill) Bernhardi |
ASTERACEAE |
| Arctostaphylos patula Greene fma platyphylla (A. Gray) P. V. Wells |
ERICACEAE |
| Argentina anserina (L.) Rydberg |
ROSACEAE |
| Aristida purpurea Nuttall |
POACEAE |
| Armeniaca vulgaris Lamarck |
ROSACEAE |
| Arnica chamissonis Lessing ssp foliosa (Nuttall) Maguire |
ASTERACEAE |
| Arnica cordifolia Hooker |
ASTERACEAE |
| Arnica fulgens Pursh |
ASTERACEAE |
| Arnica mollis Hooker |
ASTERACEAE |
| Artemisia biennis Willdenow |
ASTERACEAE |
| Artemisia frigida Willdenow |
ASTERACEAE |
| Artemisia ludoviciana Nuttall ssp incompta (Nuttall) Keck |
ASTERACEAE |
| Artemisia ludoviciana Nuttall ssp ludoviciana |
ASTERACEAE |
| Asclepias asperula (Decaisne) Woodson |
ASCLEPIADACEAE |
| Asclepias asperula (Decaisne) Woodson ssp asperula |
ASCLEPIADACEAE |
| Asclepias cryptoceras S. Watson |
ASCLEPIADACEAE |
| Asclepias speciosa Torrey |
ASCLEPIADACEAE |
| Asparagus officinalis L. |
ASPARAGACEAE |
| Asperugo procumbens L. |
BORAGINACEAE |
| Asplenium septentrionale (L.) Hoffman |
ASPLENIACEAE |
| Aster foliaceus Lindley ex De Candolle |
ASTERACEAE |
| Astragalus adsurgens Pallas var robustior Hooker |
FABACEAE |
| Astragalus agrestis Douglas ex G. Don |
FABACEAE |
| Astragalus amphioxys A. Gray var vespertinus (Sheldon) Jones |
FABACEAE |
| Astragalus argophyllus Nuttall ex Torrey & Gray var martinii Jones |
FABACEAE |
| Astragalus bisulcatus (Hooker) A. Gray |
FABACEAE |
| Astragalus chamaeleuce A. Gray |
FABACEAE |
| Astragalus cibarius Sheldon |
FABACEAE |
| Astragalus cicer L. |
FABACEAE |
| Astragalus convallarius Greene |
FABACEAE |
| Astragalus detritalis Jones |
FABACEAE |
| Astragalus drummondii Douglas ex Hooker |
FABACEAE |
| Astragalus duchesnensis Jones |
FABACEAE |
| Astragalus flavus Nuttall |
FABACEAE |
| Astragalus haydenianus A. Gray |
FABACEAE |
| Astragalus jejunus S. Watson |
FABACEAE |
| Astragalus kentrophyta A. Gray ssp elatus (S. Watson) W. A. Weber |
FABACEAE |
| Astragalus lonchocarpus Torrey var hamiltonii (C. L. Porter) Isely |
FABACEAE |
| Astragalus megacarpus (Nuttall) A. Gray |
FABACEAE |
| Astragalus miser Douglas in Hooker var oblongifolius (Rydberg) Cronquist |
FABACEAE |
| Astragalus oöphorus Jones |
FABACEAE |
| Astragalus purshii Douglas ex Hooker |
FABACEAE |
| Astragalus spatulatus Sheldon |
FABACEAE |
| Astragalus tenellus Pursh |
FABACEAE |
| Astragalus wetherillii Jones |
FABACEAE |
| Atriplex argentea Nuttall |
CHENOPODIACEAE |
| Atriplex canescens (Pursh) Nuttall |
CHENOPODIACEAE |
| Atriplex confertifolia (Torrey & Frémont) S. Watson |
CHENOPODIACEAE |
| Atriplex corrugata S. Watson |
CHENOPODIACEAE |
| Atriplex gardneri (Moquin) Standley |
CHENOPODIACEAE |
| Atriplex grayi Collotzi ex W. A. Weber |
CHENOPODIACEAE |
| Atriplex heterosperma Bunge |
CHENOPODIACEAE |
| Atriplex hortensis L. |
CHENOPODIACEAE |
| Atriplex rosea L. |
CHENOPODIACEAE |
| Atriplex suckleyi (Torrey) Rydberg |
CHENOPODIACEAE |
| Atriplex wolfii S. Watson |
CHENOPODIACEAE |
| Balsamorhiza hispidula W. M. Sharp |
ASTERACEAE |
| Balsamorhiza sagittata (Pursh) Nuttall |
ASTERACEAE |
| Bassia hyssopifolia (Pallas) Kuntze |
CHENOPODIACEAE |
| Bassia sieversiana (Pallas) W. A. Weber |
CHENOPODIACEAE |
| Berula erecta (Hudson) Coville |
APIACEAE |
| Betula fontinalis Sargent |
BETULACEAE |
| Bistorta bistortoides (Pursh) Small |
POLYGONACEAE |
| Boechera divaricarpa (A. Nelson) Löve & Löve |
BRASSICACEAE |
| Boechera drummondii (A. Gray) Löve & Löve |
BRASSICACEAE |
| Boechera fendleri (S. Watson) W. A. Weber |
BRASSICACEAE |
| Boechera fernaldiana (Rollins) W. A. Weber |
BRASSICACEAE |
| Boechera glareosa Dorn |
BRASSICACEAE |
| Boechera lignifera (A. Nelson) W. A. Weber |
BRASSICACEAE |
| Boechera oxylobula (Greene) W. A. Weber |
BRASSICACEAE |
| Boechera pulchra (Jones ex S. Watson) W. A. Weber ssp pallens (Jones) W. A. Weber |
BRASSICACEAE |
| Boechera retrofracta (R. Graham) Löve & Löve |
BRASSICACEAE |
| Boechera selbyi (Rydberg) W. A. Weber |
BRASSICACEAE |
| Bolboschoenus maritimus (L.) Palla ssp paludosus (A. Nelson) Löve & Löve |
CYPERACEAE |
| Bolophyta ligulata (Jones) W. A. Weber |
ASTERACEAE |
| Brachyactis ciliata Ledebour ssp angusta (Lindley) A. Jones |
ASTERACEAE |
| Brachyactis frondosa (Nuttall) A. Gray |
ASTERACEAE |
| Breea arvensis (L.) Lessing |
ASTERACEAE |
| Brickellia grandiflora (Hooker) Nuttall |
ASTERACEAE |
| Brickellia microphylla (Nuttall) A. Gray ssp scabra (A. Gray) W. A. Weber |
ASTERACEAE |
| Bromelica bulbosa (Geyer ex Porter & Coulter) W. A. Weber |
POACEAE |
| Bromopsis canadensis (Michaux) Holub |
POACEAE |
| Bromopsis inermis (Leysser) Holub |
POACEAE |
| Bromopsis porteri (Coulter) Holub |
POACEAE |
| Bromus hordeaceus L. |
POACEAE |
| Bromus racemosus L. |
POACEAE |
| Bromus squarrosus L. |
POACEAE |
| Calamagrostis rubescens Buckley |
POACEAE |
| Calamagrostis stricta (Timm) Koeler |
POACEAE |
| Callitriche verna L. emend. Lönnroth |
CALLITRICHACEAE |
| Calochortus gunnisonii S. Watson |
CALOCHORTACEAE |
| Calochortus nuttallii Torrey var. nuttallii |
CALOCHORTACEAE |
| Calylophus lavandulifolius (Torrey & Gray) Raven |
ONAGRACEAE |
| Camelina microcarpa Andrzejowski ex De Candolle |
BRASSICACEAE |
| Camissonia minor (A. Nelson) Raven |
ONAGRACEAE |
| Camissonia parvula (Nuttall ex Torrey & Gray) Raven |
ONAGRACEAE |
| Camissonia scapoidea (Torrey & Gray) Raven |
ONAGRACEAE |
| Camissonia subacaulis (Pursh) Raven |
ONAGRACEAE |
| Capsella bursa-pastoris (L.) Medicus |
BRASSICACEAE |
| Cardaria chalepensis (L.) Handel-Mazzetti |
BRASSICACEAE |
| Cardaria draba (L.) Desvaux |
BRASSICACEAE |
| Cardaria latifolia (L.) Spach |
BRASSICACEAE |
| Cardaria pubescens (C. A. Meyer) Jarmolenko |
BRASSICACEAE |
| Carex aurea Nuttall |
CYPERACEAE |
| Carex disperma Dewey |
CYPERACEAE |
| Carex douglasii F. Boott in Hooker |
CYPERACEAE |
| Carex festivella Mackenzie |
CYPERACEAE |
| Carex filifolia Nuttall |
CYPERACEAE |
| Carex geyeri F. Boott |
CYPERACEAE |
| Carex hassei L. H. Bailey |
CYPERACEAE |
| Carex hoodii F. Boott in Hooker |
CYPERACEAE |
| Carex lanuginosa Michaux |
CYPERACEAE |
| Carex lenticularis Michaux var lipocarpa (Holm) L. Standley |
CYPERACEAE |
| Carex macloviana D'Urville |
CYPERACEAE |
| Carex microptera Mackenzie |
CYPERACEAE |
| Carex nebrascensis Dewey |
CYPERACEAE |
| Carex occidentalis L. H. Bailey |
CYPERACEAE |
| Carex parryana Dewey |
CYPERACEAE |
| Carex petasata Dewey |
CYPERACEAE |
| Carex phaeocephala Piper |
CYPERACEAE |
| Carex praegracilis F. Boott |
CYPERACEAE |
| Carex raynoldsii Dewey |
CYPERACEAE |
| Carex utriculata F. Boott |
CYPERACEAE |
| Carex vallicola Dewey |
CYPERACEAE |
| Castilleja chromosa A. Nelson |
SCROPHULARIACEAE |
| Castilleja flava S. Watson |
SCROPHULARIACEAE |
| Castilleja linariifolia Bentham in De Candolle |
SCROPHULARIACEAE |
| Castilleja miniata Douglas ex Hooker |
SCROPHULARIACEAE |
| Castilleja minor A. Gray |
SCROPHULARIACEAE |
| Castilleja rhexifolia Rydberg |
SCROPHULARIACEAE |
| Castilleja scabrida Eastwood |
SCROPHULARIACEAE |
| Catabrosa aquatica (L.) P. Beauvois |
POACEAE |
| Caulanthus crassicaulis (Torrey) S. Watson |
BRASSICACEAE |
| Ceanothus velutinus Douglas ex Hooker |
RHAMNACEAE |
| Cenchrus longispinus (Hackel in Kneucker) Fernald |
POACEAE |
| Cerastium strictum L. {emend.} Haenke |
ALSINACEAE |
| Ceratocephala orthoceras De Candolle |
RANUNCULACEAE |
| Ceratochloa carinata (Hooker & Arnott) Tutin |
POACEAE |
| Cercocarpus intricatus S. Watson |
ROSACEAE |
| Cercocarpus ledifolius Nuttall ex Torrey & Gray |
ROSACEAE |
| Cercocarpus montanus Rafinesque |
ROSACEAE |
| Chaenactis douglasii (Hooker) Hooker & Arnott |
ASTERACEAE |
| Chaenactis stevioides Hooker & Arnott |
ASTERACEAE |
| Chaetopappa ericoides (A. Gray) Nesom |
ASTERACEAE |
| Chamaechaenactis scaposa (Eastwood) Rydberg |
ASTERACEAE |
| Chamaesyce fendleri (Torrey & Gray) Small |
EUPHORBIACEAE |
| Chamaesyce glyptosperma (Engelmann) Small |
EUPHORBIACEAE |
| Chamaesyce serpyllifolia (Persoon) Small |
EUPHORBIACEAE |
| Cheilanthes féei T. Moore |
PTERIDACEAE |
| Chenopodium berlandieri Moquin |
CHENOPODIACEAE |
| Chenopodium foliosum (Moench) Ascherson |
CHENOPODIACEAE |
| Chenopodium fremontii S. Watson |
CHENOPODIACEAE |
| Chenopodium glaucum L. |
CHENOPODIACEAE |
| Chenopodium leptophyllum (Nuttall ex Moquin) S. Watson |
CHENOPODIACEAE |
| Chenopodium pratericola Rydberg |
CHENOPODIACEAE |
| Chlorocrepis albiflora (Hooker) W. A. Weber |
ASTERACEAE |
| Chorispora tenella (Pallas) De Candolle |
BRASSICACEAE |
| Chrysothamnus depressus Nuttall |
ASTERACEAE |
| Chrysothamnus linifolius Greene |
ASTERACEAE |
| Chrysothamnus nauseosus (Pallas ex Pursh) Britton |
ASTERACEAE |
| Chrysothamnus nauseosus (Pallas ex Pursh) Britton ssp graveolens (Nuttall) Piper |
ASTERACEAE |
| Chrysothamnus nauseosus (Pallas ex Pursh) Britton ssp leiospermus (A. Gray) Hall & Clements |
ASTERACEAE |
| Chrysothamnus parryi (A. Gray) Greene ssp howardii (Parry ex A. Gray) Hall & Clements |
ASTERACEAE |
| Chrysothamnus viscidiflorus (Hooker) Nuttall |
ASTERACEAE |
| Chrysothamnus viscidiflorus (Hooker) Nuttall ssp lanceolatus (Nuttall) Hall & Clements |
ASTERACEAE |
| Chrysothamnus viscidiflorus (Hooker) Nuttall ssp stenophyllus (A. Gray) Hall & Clements |
ASTERACEAE |
| Chrysothamnus viscidiflorus (Hooker) Nuttall ssp viscidiflorus |
ASTERACEAE |
| Cicuta douglasii (De Candolle) Coulter & Rose |
APIACEAE |
| Cirsium ownbeyi Welsh |
ASTERACEAE |
| Cirsium perplexans (Rydberg) Petrak |
ASTERACEAE |
| Cirsium scariosum Nuttall |
ASTERACEAE |
| Cirsium tracyi (Rydberg) Petrak |
ASTERACEAE |
| Cirsium vulgare (Savi) Tenore |
ASTERACEAE |
| Claytonia lanceolata Pursh |
PORTULACACEAE |
| Clematis ligusticifolia Nuttall ex Torrey & Gray |
RANUNCULACEAE |
| Cleome lutea Hooker |
CAPPARACEAE |
| Cleome serrulata Pursh |
CAPPARACEAE |
| Collinsia parviflora Douglas in Lindley |
SCROPHULARIACEAE |
| Collomia linearis Nuttall |
POLEMONIACEAE |
| Comandra umbellata (L.) Nuttall ssp pallida (A. De Candolle) Piehl |
SANTALACEAE |
| Convolvulus arvensis L. |
CONVOLVULACEAE |
| Conyza canadensis (L.) Cronquist |
ASTERACEAE |
| Cordylanthus ramosus Nuttall |
SCROPHULARIACEAE |
| Corispermum americanum (Nuttall) Nuttall |
CHENOPODIACEAE |
| Corydalis curvisiliqua Engelmann subsp. occidentalis (Engelmann ex A. Gray) W. A. Weber |
FUMARIACEAE |
| Crataegus erythropoda Ashe |
ROSACEAE |
| Crataegus rivularis Nuttall |
ROSACEAE |
| Critesion brachyantherum (Nevski) Barkworth & Dewey |
POACEAE |
| Critesion jubatum (L.) Nevski |
POACEAE |
| Cryptantha ambigua (A. Gray) Greene |
BORAGINACEAE |
| Cryptantha circumscissa (Hooker & Arnott) I. M. Johnston |
BORAGINACEAE |
| Cryptantha crassisepala (Torrey & Gray) Greene var elachantha I. M. Johnston |
BORAGINACEAE |
| Cryptantha fendleri (A. Gray) Greene |
BORAGINACEAE |
| Cryptantha gracilis Osterhout |
BORAGINACEAE |
| Cryptantha scoparia A. Nelson |
BORAGINACEAE |
| Cryptantha watsonii (A. Gray) Greene |
BORAGINACEAE |
| Cyclachaena xanthifolia (Nuttall) Fresenius |
ASTERACEAE |
| Cymopterus acaulis (Pursh) Rafinesque |
APIACEAE |
| Cymopterus bulbosus A. Nelson |
APIACEAE |
| Cymopterus duchesnensis Jones |
APIACEAE |
| Cymopterus fendleri A. Gray |
APIACEAE |
| Cymopterus planosus (Osterhout) Mathias |
APIACEAE |
| Cymopterus purpureus S. Watson |
APIACEAE |
| Cymopterus terebinthinus (Hooker) Torrey & Gray var calcareus (Jones) Cronquist |
APIACEAE |
| Cynoglossum officinale L. |
BORAGINACEAE |
| Cystopteris fragilis (L.) Bernhardi |
DRYOPTERIDACEAE |
| Cystopteris tenuis (Michaux) Desvaux |
DRYOPTERIDACEAE |
| Cystopteris utahensis Windham & Haufler |
DRYOPTERIDACEAE |
| Danthonia intermedia Vasey |
POACEAE |
| Danthonia unispicata (Thurber) Munro |
POACEAE |
| Delphinium barbeyi (Huth) Huth |
HELLEBORACEAE |
| Delphinium nuttallianum Pritzel ex Walpers |
HELLEBORACEAE |
| Deschampsia cespitosa (L.) P. Beauvois |
POACEAE |
| Descurainia incisa (Engelmann ex A. Gray) Britton subsp. filipes (A. Gray) Rollins |
BRASSICACEAE |
| Descurainia incisa (Engelmann ex A. Gray) Britton subsp. incisa |
BRASSICACEAE |
| Descurainia incisa (Engelmann ex A. Gray) Britton subsp. viscosa (Rydberg) Rollins |
BRASSICACEAE |
| Descurainia pinnata (Walter) Britton subsp. halictorum (Cockerell) Detling |
BRASSICACEAE |
| Descurainia pinnata (Walter) Britton subsp. intermedia (Rydberg) Detling |
BRASSICACEAE |
| Descurainia sophia (L.) Webb ex Prantl |
BRASSICACEAE |
| Distegia involucrata (Banks ex Sprengel) Cockerell |
CAPRIFOLIACEAE |
| Distichlis stricta (Torrey) Rydberg |
POACEAE |
| Dodecatheon pulchellum (Rafinesque) Merrill |
PRIMULACEAE |
| Draba albertina Greene |
BRASSICACEAE |
| Draba nemorosa L. |
BRASSICACEAE |
| Draba oligosperma Hooker |
BRASSICACEAE |
| Draba reptans (Lamarck) Fernald |
BRASSICACEAE |
| Dracocephalum parviflorum Nuttall |
LAMIACEAE |
| Drymocallis arguta (Pursh) Rydberg |
ROSACEAE |
| Echinocereus triglochidiatus Engelmann |
CACTACEAE |
| Echinocereus triglochidiatus Engelmann var gonacanthus (Engelmann & Bigelow) Boissevain & Davidson |
CACTACEAE |
| Echinocereus triglochidiatus Engelmann var melanacanthus (Engelmann) L. Benson |
CACTACEAE |
| Echinochloa crus-galli (L.) P. Beauvois |
POACEAE |
| Eleocharis acicularis (L.) Roemer & Schultes |
CYPERACEAE |
| Eleocharis bolanderi A. Gray |
CYPERACEAE |
| Eleocharis palustris (L.) Roemer & Schultes |
CYPERACEAE |
| Eleocharis quinqueflora (F. X. Hartman) Schwartz |
CYPERACEAE |
| Ellisia nyctelea (L.) L. |
HYDROPHYLLACEAE |
| Elymus canadensis L. |
POACEAE |
| Elymus elymoides (Rafinesque) Swezey |
POACEAE |
| Elymus lanceolatus (Scribner & Smith) Gould |
POACEAE |
| Elymus longifolius (J. G. Smith) Gould |
POACEAE |
| Elymus multisetus (J. G. Smith) Davy |
POACEAE |
| Elymus trachycaulus (Link) Gould |
POACEAE |
| Elytrigia repens (L.) Nevski |
POACEAE |
| Enceliopsis nudicaulis (A. Gray) A. Nelson |
ASTERACEAE |
| Ephedra torreyana S. Watson |
EPHEDRACEAE |
| Ephedra viridis Coville var. viridis |
EPHEDRACEAE |
| Epilobium brachycarpum K. Presl |
ONAGRACEAE |
| Epilobium ciliatum Rafinesque |
ONAGRACEAE |
| Epilobium ciliatum Rafinesque ssp glandulosum (Lehmann) Hoch & Raven |
ONAGRACEAE |
| Epilobium halleanum Haussknecht |
ONAGRACEAE |
| Epipactis gigantea Douglas ex Hooker |
ORCHIDACEAE |
| Equisetum arvense L. |
EQUISETACEAE |
| Eragrostis trichodes (Nuttall) Wood |
POACEAE |
| Eremogone congesta (Nuttall ex Torrey & Gray) Ikonnikov |
ALSINACEAE |
| Eremogone hookeri (Nuttall ex Torrey & Gray) W. A. Weber ssp desertorum (Maguire) W. A. Weber |
ALSINACEAE |
| Eremogone kingii (S. Watson) Ikonnikov ssp uintahensis (A. Nelson) W. A. Weber |
ALSINACEAE |
| Erigeron compactus Blake |
ASTERACEAE |
| Erigeron compositus Pursh |
ASTERACEAE |
| Erigeron concinnus (H. & A.) T. & G. |
ASTERACEAE |
| Erigeron concinnus (H. & A.) T. & G. var. condensatus D.C. Eaton in S. Wats |
ASTERACEAE |
| Erigeron coulteri T. C. Porter |
ASTERACEAE |
| Erigeron divergens Torrey & Gray |
ASTERACEAE |
| Erigeron eatonii A. Gray var eatonii |
ASTERACEAE |
| Erigeron engelmannii A. Nelson |
ASTERACEAE |
| Erigeron flagellaris A. Gray |
ASTERACEAE |
| Erigeron glabellus Nuttall |
ASTERACEAE |
| Erigeron nematophyllus Rydberg |
ASTERACEAE |
| Erigeron pulcherrimus Heller |
ASTERACEAE |
| Erigeron uintahensis Cronquist |
ASTERACEAE |
| Erigeron wilkenii O'Kane |
ASTERACEAE |
| Eriogonum acaule Nuttall |
POLYGONACEAE |
| Eriogonum batemanii Jones |
POLYGONACEAE |
| Eriogonum brevicaule Nuttall |
POLYGONACEAE |
| Eriogonum cernuum Nuttall |
POLYGONACEAE |
| Eriogonum corymbosum Bentham in A. De Candolle |
POLYGONACEAE |
| Eriogonum corymbosum Bentham in A. De Candolle var corymbosum |
POLYGONACEAE |
| Eriogonum flavum Nuttall subsp. flavum |
POLYGONACEAE |
| Eriogonum gordonii Bentham |
POLYGONACEAE |
| Eriogonum heracleoides Nuttall |
POLYGONACEAE |
| Eriogonum lonchophyllum Torrey & Gray |
POLYGONACEAE |
| Eriogonum microthecum Nuttall |
POLYGONACEAE |
| Eriogonum microthecum Nuttall var laxiflorum Hooker |
POLYGONACEAE |
| Eriogonum microthecum Nuttall var simpsonii (Bentham in A. De Candolle) Reveal |
POLYGONACEAE |
| Eriogonum ovalifolium Nuttall |
POLYGONACEAE |
| Eriogonum saurinum Reveal |
POLYGONACEAE |
| Eriogonum shockleyi S. Watson |
POLYGONACEAE |
| Eriogonum shockleyi S. Watson var longilobum (S. Stokes) Reveal |
POLYGONACEAE |
| Eriogonum tumulosum (Barneby) Reveal |
POLYGONACEAE |
| Eriogonum umbellatum Torrey var aureum (Gandoger) Reveal |
POLYGONACEAE |
| Eriogonum umbellatum Torrey var. umbellatum |
POLYGONACEAE |
| Eriogonum viridulum Reveal |
POLYGONACEAE |
| Erodium cicutarium (L.) L'Heritier |
GENTIANACEAE |
| Erysimum asperum (Nuttall) De Candolle |
BRASSICACEAE |
| Erysimum capitatum (Douglas) Greene |
BRASSICACEAE |
| Erythrocoma triflora (Pursh) Greene |
ROSACEAE |
| Erythronium grandiflorum Pursh |
LILIACEAE |
| Eucephalus engelmannii (D. C. Eaton) Greene |
ASTERACEAE |
| Eucephalus glaucus Nuttall |
ASTERACEAE |
| Eucephalus perelegans Nuttall |
ASTERACEAE |
| Euthamia occidentalis Nuttall |
ASTERACEAE |
| Fendlerella utahensis (S. Watson) Heller |
HYDRANGEACEAE |
| Festuca idahoensis Elmer |
POACEAE |
| Festuca rubra L. |
POACEAE |
| Forsellesia meionandra (Koehne) Heller |
CROSSOSOMATACEAE |
| Fraxinus anomala Torrey ex S. Watson |
OLEACEAE |
| Fritillaria atropurpurea Nuttall |
LILIACEAE |
| Fritillaria pudica (Pursh) Sprengel |
LILIACEAE |
| Gaillardia aristata Pursh |
ASTERACEAE |
| Gaillardia pinnatifida Torrey |
ASTERACEAE |
| Galium bifolium S. Watson |
RUBIACEAE |
| Galium coloradoënse W. F. Wight |
RUBIACEAE |
| Galium septentrionale Roemer & Schultes |
RUBIACEAE |
| Galium triflorum Michaux |
RUBIACEAE |
| Gastrolychnis drummondii (Hooker) Löve & Löve |
CARYOPHYLLACEAE |
| Gayophytum diffusum Torrey & Gray ssp parviflorum Lewis & Szweykowski |
ONAGRACEAE |
| Gayophytum racemosum Torrey & Gray |
ONAGRACEAE |
| Gentianella acuta (Michaux) Hiitonen |
GENTIANACEAE |
| Geranium richardsonii Fischer & Trautvetter |
GERANIACEAE |
| Geranium viscosissimum Fischer & Meyer ssp nervosum (Rydberg) W. A. Weber |
GERANIACEAE |
| Geum macrophyllum Willdenow |
ROSACEAE |
| Gilia ophthalmoides Brand |
POLEMONIACEAE |
| Gilia tweedyi Rydberg |
POLEMONIACEAE |
| Glaux maritima L. var angustifolia Boivin |
PRIMULACEAE |
| Glyceria elata (Nash ex Rydberg) Jones |
POACEAE |
| Glyceria grandis S. Watson in A. Gray |
POACEAE |
| Glyceria striata (Lamarck) A. S. Hitchcock var stricta (Scribner) Fernald |
POACEAE |
| Glycyrrhiza lepidota Pursh |
FABACEAE |
| Gnaphalium palustre Nuttall |
ASTERACEAE |
| Gnaphalium uliginosum L. |
ASTERACEAE |
| Goodyera oblongifolia Rafinesque |
ORCHIDACEAE |
| Grindelia fastigiata Greene |
ASTERACEAE |
| Grindelia squarrosa (Pursh) Dunal |
ASTERACEAE |
| Grindelia squarrosa (Pursh) Dunal var quasiperennis Lunell |
ASTERACEAE |
| Gutierrezia sarothrae (Pursh) Britton & Rusby |
ASTERACEAE |
| Gypsophila elegans Bieberstein |
CARYOPHYLLACEAE |
| Gypsophila paniculata L. |
CARYOPHYLLACEAE |
| Hackelia floribunda (Lehmann) I. M. Johnston |
BORAGINACEAE |
| Halerpestes cymbalaria (Pursh) Greene ssp saximontana (Fernald) Moldenke |
RANUNCULACEAE |
| Halogeton glomeratus (Bieberstein) C. A. Meyer |
CHENOPODIACEAE |
| Hecatonia scelerata (L.) Fourreau |
RANUNCULACEAE |
| Hedysarum boreale Nuttall |
FABACEAE |
| Helenium autumnale L. |
ASTERACEAE |
| Helenium autumnale L. var montanum (Nuttall) Fernald |
ASTERACEAE |
| Helianthella uniflora (Nuttall) Torrey & Gray |
ASTERACEAE |
| Helianthus annuus L. |
ASTERACEAE |
| Helianthus nuttallii Torrey & Gray |
ASTERACEAE |
| Helianthus petiolaris Nuttall |
ASTERACEAE |
| Heliomeris multiflora Nuttall var multiflora |
ASTERACEAE |
| Heliotropium curassavicum L. ssp oculatum (Heller) Thorne |
BORAGINACEAE |
| Hesperostipa comata (Trinius & Ruprecht) Barkworth |
POACEAE |
| Heterotheca villosa (Pursh) Shinners |
ASTERACEAE |
| Heterotheca villosa (Pursh) Shinners var. villosa |
ASTERACEAE |
| Heuchera parvifolia Nuttall ex Torrey & Gray |
SAXIFRAGACEAE |
| Hilaria jamesii (Torrey) Bentham |
POACEAE |
| Hippochaete hyemalis (L.) Bruhin |
EQUISETACEAE |
| Hippochaete laevigata (A. Braun) Farwell |
EQUISETACEAE |
| Holodiscus dumosus (Nuttall ex Hooker) Heller |
ROSACEAE |
| Humulus lupulus L. ssp americanus (Nuttall) Löve & Löve |
CANNABACEAE |
| Hydrophyllum capitatum Douglas ex Bentham |
HYDROPHYLLACEAE |
| Hymenopappus filifolius Hooker var cinereus (Rydberg) I. M. Johnston |
ASTERACEAE |
| Hymenopappus filifolius Hooker var luteus (Nuttall) B. Turner |
ASTERACEAE |
| Hyoscyamus niger L. |
SOLANACEAE |
| Hypericum formosum Humboldt, Bonpland, & Kunth |
HYPERICACEAE |
| Iliamna rivularis (Douglas) Greene |
MALVACEAE |
| Ipomopsis aggregata (Pursh) V. Grant |
POLEMONIACEAE |
| Ipomopsis aggregata (Pursh) V. Grant ssp aggregata |
POLEMONIACEAE |
| Ipomopsis congesta (Hooker) V. Grant |
POLEMONIACEAE |
| Ipomopsis congesta (Hooker) V. Grant ssp congesta |
POLEMONIACEAE |
| Ipomopsis congesta (Hooker) V. Grant ssp frutescens (Rydberg) Day |
POLEMONIACEAE |
| Ipomopsis polycladon Torrey |
POLEMONIACEAE |
| Ipomopsis pumila (Nuttall) V. Grant |
POLEMONIACEAE |
| Ipomopsis spicata (Nuttall) V. Grant |
POLEMONIACEAE |
| Iris missouriensis Nuttall |
IRIDACEAE |
| Iva axillaris Pursh |
ASTERACEAE |
| Ivesia gordonii (Hooker) Torrey & Gray |
ROSACEAE |
| Juncus arcticus Willdenow ssp ater (Rydberg) Hultén |
JUNCACEAE |
| Juncus bryoides F. J. Hermann |
JUNCACEAE |
| Juncus bufonius L. |
JUNCACEAE |
| Juncus confusus Coville |
JUNCACEAE |
| Juncus ensifolius Wikström |
JUNCACEAE |
| Juncus interior Wiegand |
JUNCACEAE |
| Juncus longistylis Torrey |
JUNCACEAE |
| Juncus nevadensis S. Watson |
JUNCACEAE |
| Juncus parryi Engelmann |
JUNCACEAE |
| Juncus saximontanus A. Nelson |
JUNCACEAE |
| Juniperus communis L. ssp alpina (J. E. Smith) Celakovsky |
CUPRESSACEAE |
| Koeleria macrantha (Ledebour) Schultes |
POACEAE |
| Krascheninnikovia lanata (Pursh) Meeuse & Smit |
CHENOPODIACEAE |
| Lactuca serriola L. |
ASTERACEAE |
| Lactuca tatarica (L.) C. A. Meyer ssp pulchella (Pursh) Stebbins |
ASTERACEAE |
| Lappula marginata (Bieberstein) Guerke |
BORAGINACEAE |
| Lappula redowskii (Hornemann) Greene |
BORAGINACEAE |
| Lappula squarrosa (Retzius) Dumont de Cours |
BORAGINACEAE |
| Lathrocasis tenerrima (A. Gray) L.A. Johnson |
POLEMONIACEAE |
| Lathyrus leucanthus Rydberg |
FABACEAE |
| Lemna turionifera Landolt |
LEMNACEAE |
| Lepidium crenatum (Greene) Rydb. |
BRASSICACEAE |
| Lepidium densiflorum Schrader |
BRASSICACEAE |
| Lepidium montanum Nuttall ssp montanum |
BRASSICACEAE |
| Lepidium montanum Nuttall var jonesii (Rydberg) C. L. Hitchcock |
BRASSICACEAE |
| Lepidium montanum Nuttall var tenellum (L. Williams) C. L. Hitchcock |
BRASSICACEAE |
| Lepidium montanum Nuttall var. wyomingense (C.L. Hitchcock) C. L. Hitchcock |
BRASSICACEAE |
| Lepidium perfoliatum L. |
BRASSICACEAE |
| Leptodactylon caespitosum Nuttall |
POLEMONIACEAE |
| Leptodactylon pungens (Torrey) Rydberg |
POLEMONIACEAE |
| Leptodactylon watsonii (A. Gray) Rydberg |
POLEMONIACEAE |
| Lesquerella alpina (Nuttall ex Torrey & Gray) S. Watson |
BRASSICACEAE |
| Lesquerella ludoviciana (Nuttall) S. Watson |
BRASSICACEAE |
| Leucanthemum vulgare Lamarck |
ASTERACEAE |
| Leucopoa kingii (S. Watson) W. A. Weber |
POACEAE |
| Lewisia rediviva Pursh |
PORTULACACEAE |
| Leymus cinereus (Scribner & Merrill) Löve |
POACEAE |
| Leymus salina (Jones) Löve |
POACEAE |
| Limosella aquatica L. |
SCROPHULARIACEAE |
| Linanthus harknessii (Curran) Greene var septentrionalis (Mason) Jepson & Bailey |
POLEMONIACEAE |
| Linaria genistifolia (L.) P. Miller ssp dalmatica (L.) Maire et al. |
SCROPHULARIACEAE |
| Lithophragma glabrum Nuttall |
SAXIFRAGACEAE |
| Lithophragma parviflorum (Hooker) Nuttall ex Torrey & Gray |
SAXIFRAGACEAE |
| Lithospermum incisum Lehmann |
BORAGINACEAE |
| Lithospermum ruderale Douglas ex Lehmann |
BORAGINACEAE |
| Lomatium bicolor (S. Watson) Coulter & Rose var leptocarpum (Nuttall ex Torrey & Gray) Schlessman |
APIACEAE |
| Lomatium dissectum (Nuttall) Mathias & Constance var multifidum (Nuttall) Mathias & Constance |
APIACEAE |
| Lomatium grayi Coulter & Rose |
APIACEAE |
| Lomatium juniperinum (Jones) Coulter & Rose |
APIACEAE |
| Lomatium macrocarpum (Hooker & Arnott) Coulter & Rose |
APIACEAE |
| Lomatium orientale Coulter & Rose |
APIACEAE |
| Lomatium triternatum (Pursh) Coulter & Rose ssp platycarpum (Torrey) Cronquist |
APIACEAE |
| Lupinus argenteus Pursh |
FABACEAE |
| Lupinus caudatus Kellogg |
FABACEAE |
| Lupinus prunophilus Jones |
FABACEAE |
| Lupinus pusillus Pursh |
FABACEAE |
| Lycium barbarum L. |
SOLANACEAE |
| Lygodesmia grandiflora (Nuttall) Torrey & Gray |
ASTERACEAE |
| Lysimachia ciliata L. |
PRIMULACEAE |
| Machaeranthera canescens (Pursh) A. Gray |
ASTERACEAE |
| Machaeranthera coloradoënsis (A. Gray) Osterhout |
ASTERACEAE |
| Machaeranthera grindelioides (Nuttall) Shinners |
ASTERACEAE |
| Madia glomerata Hooker |
ASTERACEAE |
| Mahonia repens (Lindley) G. Don |
BERBERIDACEAE |
| Maianthemum stellatum (L.) Link |
CONVALLARIACEAE |
| Malacothrix sonchoides (Nuttall) Torrey & Gray |
ASTERACEAE |
| Malcolmia africana (L.) R. Brown |
BRASSICACEAE |
| Marrubium vulgare L. |
LAMIACEAE |
| Medicago lupulina L. |
FABACEAE |
| Medicago sativa L. |
FABACEAE |
| Melilotus albus Medicus |
FABACEAE |
| Melilotus officinale (L.) Pallas |
FABACEAE |
| Mentha arvensis L. |
LAMIACEAE |
| Mertensia brevistyla S. Watson |
BORAGINACEAE |
| Mertensia lanceolata (Pursh) A. De Candolle var viridis A. Nelson |
BORAGINACEAE |
| Mertensia oblongifolia (Nuttall) G. Don |
BORAGINACEAE |
| Microseris nutans (Geyer ex Hooker) Schultz-Bipontinus |
ASTERACEAE |
| Microsteris gracilis (Douglas ex Hooker) Greene ssp humilis (Greene) V. Grant |
POLEMONIACEAE |
| Mimulus floribundus Douglas in Lindley |
SCROPHULARIACEAE |
| Mimulus glabratus Humboldt, Bonpland, & Kunth |
SCROPHULARIACEAE |
| Mimulus guttatus De Candolle |
SCROPHULARIACEAE |
| Mimulus rubellus A. Gray |
SCROPHULARIACEAE |
| Mimulus suksdorfii Gray |
SCROPHULARIACEAE |
| Minuopsis nuttallii (Pax) W. A. Weber |
ALSINACEAE |
| Monolepis nuttalliana (Schultes) Greene |
CHENOPODIACEAE |
| Monroa squarrosa (Nuttall) Torrey |
POACEAE |
| Muhlenbergia asperifolia (Nees & Meyen ex Trinius) Parodi |
POACEAE |
| Muhlenbergia pungens Thurber ex A. Gray |
POACEAE |
| Muhlenbergia racemosa (Michaux) Britton, Sterns, & Poggenberg |
POACEAE |
| Myosurus minimus L. ssp minimus |
RANUNCULACEAE |
| Nama densum Lemmon |
HYDROPHYLLACEAE |
| Nassella viridula (Trinius) Barkworth |
POACEAE |
| Nasturtium officinale R. Brown |
BRASSICACEAE |
| Navarretia breweri (A. Gray) Greene |
POLEMONIACEAE |
| Negundo aceroides (L.) Moench |
ACERACEAE |
| Negundo aceroides (L.) Moench ssp interius (Britton & Shafer) Löve & Löve |
ACERACEAE |
| Negundo aceroides (L.) Moench ssp violaceus (Kirchner in Petzold & Kirchner) W. A. Weber |
ACERACEAE |
| Nemophila breviflora A. Gray |
HYDROPHYLLACEAE |
| Nepeta cataria L. |
LAMIACEAE |
| Nicotiana attenuata Torrey ex S. Watson |
SOLANACEAE |
| Noccaea montana (L.) F. K. Meyer |
BRASSICACEAE |
| Nuttallia multicaulis (Osterhout) Osterhout |
LOASACEAE |
| Oenothera acutissima W. L. Wagner |
ONAGRACEAE |
| Oenothera caespitosa Nuttall ex Fraser ssp macroglottis (Rydberg) W. L. Wagner et al. |
ONAGRACEAE |
| Oenothera caespitosa Nuttall ex Fraser ssp marginata (Nuttall) W. L. Wagner et al. |
ONAGRACEAE |
| Oenothera coronopifolia Torrey & Gray |
ONAGRACEAE |
| Oenothera elata Humboldt, Bonpland, & Kunth ssp hirsutissima (A. Gray ex S. Watson) Dietrich & Wagner |
ONAGRACEAE |
| Oenothera flava (A. Nelson) Garrett |
ONAGRACEAE |
| Oenothera pallida Lindley ssp trichocalyx (Nuttall ex Torrey & Gray) Munz & Klein |
ONAGRACEAE |
| Oligosporus dracunculus (L.) Poljakov ssp dracunculinus (S. Watson) W. A. Weber |
ASTERACEAE |
| Oligosporus dracunculus (L.) Poljakov ssp glaucus (Pallas) Löve & Löve |
ASTERACEAE |
| Oligosporus pedatifidus (Nuttall) Poljakov |
ASTERACEAE |
| Opuntia fragilis (Nuttall) Haworth |
CACTACEAE |
| Opuntia polyacantha Haworth |
CACTACEAE |
| Opuntia polyacantha Haworth var. polyacantha |
CACTACEAE |
| Oreobroma nevadensis (A. Gray) T. J. Howell |
PORTULACACEAE |
| Oreobroma pygmaea (A. Gray) T. J. Howell |
PORTULACACEAE |
| Oreocarya breviflora Osterhout |
BORAGINACEAE |
| Oreocarya caespitosa A. Nelson |
BORAGINACEAE |
| Oreocarya celosioides Eastwood |
BORAGINACEAE |
| Oreocarya flava A. Nelson |
BORAGINACEAE |
| Oreocarya flavoculata A. Nelson |
BORAGINACEAE |
| Oreocarya nitida Greene |
BORAGINACEAE |
| Oreocarya sericea (A. Gray) Greene |
BORAGINACEAE |
| Oreocarya stricta Osterhout |
BORAGINACEAE |
| Oreocarya suffruticosa (Torrey) Greene |
BORAGINACEAE |
| Oreochrysum parryi (A. Gray) Rydberg |
ASTERACEAE |
| Orobanche ludoviciana Nuttall |
OROBANCHACEAE |
| Orogenia linearifolia S. Watson |
APIACEAE |
| Orophaca aretioides (Jones) Rydberg |
FABACEAE |
| Orthilia secunda (L.) House |
PYROLACEAE |
| Orthocarpus luteus Nuttall |
SCROPHULARIACEAE |
| Oryzopsis exigua Thurber |
POACEAE |
| Osmorhiza chilensis Hooker & Arnott |
APIACEAE |
| Osmorhiza depauperata Philippi |
APIACEAE |
| Oxybaphus linearis (Pursh) B. L. Robinson |
NYCTAGINACEAE |
| Oxytropis besseyi (Rydberg) Blankinship var obnapiformis (C. L. Porter) Welsh |
FABACEAE |
| Oxytropis sericea Nuttall |
FABACEAE |
| Packera cana (Hooker) Weber & Löve |
ASTERACEAE |
| Packera multilobata (Torrey & Gray ex A. Gray) Weber & Löve |
ASTERACEAE |
| Packera streptanthifolia (Greene) Weber & Löve |
ASTERACEAE |
| Packera werneriifolia (A. Gray) Weber & Löve |
ASTERACEAE |
| Padus virginiana (L.) P. Miller ssp melanocarpa (A. Nelson) W. A. Weber |
ROSACEAE |
| Panicum capillare L. |
POACEAE |
| Parnassia parviflora De Candolle |
PARNASSIACEAE |
| Paronychia sessiliflora Nuttall |
ALSINACEAE |
| Parthenocissus vitacea (Knerr) A. S. Hitchcock |
VITACEAE |
| Pascopyrum smithii (Rydberg) Löve |
POACEAE |
| Paxistima myrsinites (Pursh) Rafinesque |
CELASTRACEAE |
| Pediocactus simpsonii (Engelmann) Britton & Rose |
CACTACEAE |
| Pediocactus simpsonii (Engelmann) Britton & Rose var minor (Engelmann) Cockerell |
CACTACEAE |
| Pediocactus simpsonii (Engelmann) Britton & Rose var simpsonii |
CACTACEAE |
| Pellaea breweri D. C. Eaton |
PTERIDACEAE |
| Pellaea glabella Mettenius ex Kuhn subsp. simplex Löve & Löve |
PTERIDACEAE |
| Penstemon acaulis L. Williams var yampaënsis (Penland) Neese |
SCROPHULARIACEAE |
| Penstemon albidus Nuttall |
SCROPHULARIACEAE |
| Penstemon angustifolius Nuttall ex Pursh var vernalensis N. Holmgren |
SCROPHULARIACEAE |
| Penstemon arenicola A. Nelson |
SCROPHULARIACEAE |
| Penstemon caespitosus Nuttall |
SCROPHULARIACEAE |
| Penstemon fremontii Torrey & Gray |
SCROPHULARIACEAE |
| Penstemon fremontii Torrey & Gray var fremontii |
SCROPHULARIACEAE |
| Penstemon humilis Nuttall ex A. Gray |
SCROPHULARIACEAE |
| Penstemon pachyphyllus A. Gray ex Rydberg var mucronatus (N. Holmgren) Neese |
SCROPHULARIACEAE |
| Penstemon procerus Douglas ex R. Graham var procerus |
SCROPHULARIACEAE |
| Penstemon radicosus A. Nelson |
SCROPHULARIACEAE |
| Penstemon rydbergii A. Nelson |
SCROPHULARIACEAE |
| Penstemon saxosorum Pennell |
SCROPHULARIACEAE |
| Penstemon scariosus Pennell |
SCROPHULARIACEAE |
| Penstemon scariosus Pennell var cyanomontanus Neese |
SCROPHULARIACEAE |
| Penstemon strictus Bentham in De Candolle |
SCROPHULARIACEAE |
| Penstemon watsonii A. Gray |
SCROPHULARIACEAE |
| Penstemon whippleanus A. Gray |
SCROPHULARIACEAE |
| Pentaphylloides floribunda (Pursh) Löve |
ROSACEAE |
| Perideridia gairdneri (Hooker & Arnott) Mathias ssp borealis Chuang & Constance |
APIACEAE |
| Persicaria amphibia (L.) S. Gray |
POLYGONACEAE |
| Persicaria coccinea (Mühlenberg ex Willdenow) Greene |
POLYGONACEAE |
| Persicaria lapathifolia (L.) S. Gray |
POLYGONACEAE |
| Petradoria pumila (Nuttall) Greene |
ASTERACEAE |
| Petrophyton caespitosum (Nuttall) Rydberg |
ROSACEAE |
| Phacelia crenulata Torrey |
HYDROPHYLLACEAE |
| Phacelia hastata Douglas ex Lehmann |
HYDROPHYLLACEAE |
| Phacelia ivesiana Torrey |
HYDROPHYLLACEAE |
| Phacelia sericea (R. Graham) A. Gray |
HYDROPHYLLACEAE |
| Phacelia sericea (R. Graham) A. Gray ssp ciliosa (Rydberg) G. W. Gillett |
HYDROPHYLLACEAE |
| Philadelphus microphyllus A. Gray |
HYDRANGEACEAE |
| Phleum pratense L. |
POACEAE |
| Phlox austromontana Coville |
POLEMONIACEAE |
| Phlox bryoides Nuttall |
POLEMONIACEAE |
| Phlox hoodii Richardson |
POLEMONIACEAE |
| Phlox longifolia Nuttall |
POLEMONIACEAE |
| Phlox multiflora A. Nelson |
POLEMONIACEAE |
| Phragmites australis (Cavanilles) Trinius ex Steudel |
POACEAE |
| Physaria acutifolia Rydberg |
BRASSICACEAE |
| Physocarpus alternans (Jones) J. T. Howell |
ROSACEAE |
| Picea pungens Engelmann |
PINACEAE |
| Picradenia richardsonii Hooker |
ASTERACEAE |
| Picradenia richardsonii Hooker var. floribunda (Gray) Weber |
ASTERACEAE |
| Picrothamnus desertorum Nuttall |
ASTERACEAE |
| Pinus contorta Douglas ex Loudon var latifolia Engelmann |
PINACEAE |
| Pinus edulis Engelmann |
PINACEAE |
| Pinus flexilis James |
PINACEAE |
| Pinus ponderosa Douglas ex P. & C. Lawson ssp scopulorum (S. Watson) W. A. Weber |
PINACEAE |
| Piperia unalascensis (Sprengel) Rydberg |
ORCHIDACEAE |
| Piptatherum micranthum (Trinius & Ruprecht) Barkworth |
POACEAE |
| Plagiobothrys scouleri (Hooker & Arnott) I. M. Johnston ssp penicillata (Greene) Löve |
BORAGINACEAE |
| Plantago eriopoda Torrey |
PLANTAGINACEAE |
| Plantago lanceolata L. |
PLANTAGINACEAE |
| Plantago patagonica Jacquin |
PLANTAGINACEAE |
| Plantago tweedyi A. Gray |
PLANTAGINACEAE |
| Platanthera aquilonis Sheviak |
ORCHIDACEAE |
| Platanthera dilatata (Pursh) Lindley ex L.C. Beck |
ORCHIDACEAE |
| Platanthera zothecina (L.C. Higgins & S.L. Welsh) Kartesz & Gandhi |
ORCHIDACEAE |
| Pneumonanthe affinis (Grisebach) Greene |
GENTIANACEAE |
| Poa agassizensis Boivin & D. Löve |
POACEAE |
| Poa annua L. |
POACEAE |
| Poa bulbosa L. |
POACEAE |
| Poa compressa L. |
POACEAE |
| Poa fendleriana (Steudel) Vasey |
POACEAE |
| Poa juncifolia Scribner |
POACEAE |
| Poa nervosa (Hooker) Vasey |
POACEAE |
| Poa palustris L. |
POACEAE |
| Poa pratensis L. |
POACEAE |
| Poa secunda J. Presl in K. Presl |
POACEAE |
| Pocilla biloba (L.) W. A. Weber |
SCROPHULARIACEAE |
| Polanisia dodecandra (L.) De Candolle |
CAPPARACEAE |
| Polemonium foliosissimum (A. Gray) A. Gray |
POLEMONIACEAE |
| Polygonum arenastrum Boreau |
POLYGONACEAE |
| Polygonum argyrocoleon Steudel ex Kuntze |
POLYGONACEAE |
| Polygonum aviculare L. var aviculare |
POLYGONACEAE |
| Polygonum douglasii Greene |
POLYGONACEAE |
| Polygonum polygaloides Meissner ssp kelloggii (Greene) Hickman |
POLYGONACEAE |
| Polygonum ramosissimum Michaux |
POLYGONACEAE |
| Polypogon monspeliensis (L.) Desfontaines |
POACEAE |
| Populus acuminata Rydberg |
SALICACEAE |
| Populus angustifolia James |
SALICACEAE |
| Populus deltoides H. Marshall ssp wislizenii (S. Watson) Eckenwalder |
SALICACEAE |
| Populus tremuloides Michaux |
SALICACEAE |
| Portulaca oleracea L. |
PORTULACACEAE |
| Potamogeton pusillus L. |
POTAMOGETONACEAE |
| Potentilla biennis Greene |
ROSACEAE |
| Potentilla concinna Richardson var. concinna |
ROSACEAE |
| Potentilla effusa Douglas ex Lehmann |
ROSACEAE |
| Potentilla flabelliformis Lehmann |
ROSACEAE |
| Potentilla gracilis Douglas |
ROSACEAE |
| Potentilla hippiana Lehmann |
ROSACEAE |
| Potentilla ovina Macoun |
ROSACEAE |
| Potentilla pulcherrima Lehmann |
ROSACEAE |
| Psathyrostachys juncea (Fischer) Nevski |
POACEAE |
| Pseudoroegneria spicata (Pursh) Löve ssp inermis (Scribner & Smith) Löve |
POACEAE |
| Pseudoroegneria spicata (Pursh) Löve ssp spicata |
POACEAE |
| Pseudostellaria jamesiana (Torrey) Weber & Hartman |
ALSINACEAE |
| Pseudotsuga menziesii (Mirbel) Franco |
PINACEAE |
| Psilochenia acuminata (Nuttall) W. A. Weber |
ASTERACEAE |
| Psilochenia atribarba (Heller) W. A. Weber |
ASTERACEAE |
| Psilochenia intermedia (A. Gray) W. A. Weber |
ASTERACEAE |
| Psilochenia modocensis (Greene) W. A. Weber |
ASTERACEAE |
| Psilochenia occidentalis (Nutt.) Weber |
ASTERACEAE |
| Psoralidium lanceolatum (Pursh) Rydberg |
FABACEAE |
| Pterospora andromedea Nuttall |
MONOTROPACEAE |
| Puccinellia airoides Watson & Coulter |
POACEAE |
| Purshia tridentata (Pursh) De Candolle |
ROSACEAE |
| Pyrola minor L. |
PYROLACEAE |
| Quercus gambelii Nuttall |
FAGACEAE |
| Ranunculus alismifolius Geyer ex Bentham var montanus S. Watson |
RANUNCULACEAE |
| Ranunculus glaberrimus Hooker var ellipticus Greene |
RANUNCULACEAE |
| Ranunculus hyperboreus Rottboel ssp intertextus (Greene) Kapoor & Löve |
RANUNCULACEAE |
| Ranunculus inamoenus Greene |
RANUNCULACEAE |
| Ranunculus jovis A. Nelson |
RANUNCULACEAE |
| Ranunculus uncinatus D. Don |
RANUNCULACEAE |
| Ranunculus uncinatus D. Don var earlei (Greene) L. Benson |
RANUNCULACEAE |
| Rhus aromatica Aiton ssp trilobata (Nuttall ex Torrey & Gray) W. A. Weber |
ANACARDIACEAE |
| Ribes aureum Pursh |
GROSSULARIACEAE |
| Ribes cereum Douglas |
GROSSULARIACEAE |
| Ribes inerme Rydberg |
GROSSULARIACEAE |
| Rorippa sinuata (Nuttall in Torrey & Gray) A. S. Hitchcock |
BRASSICACEAE |
| Rorippa teres (Michaux) Stuckey |
BRASSICACEAE |
| Rosa nutkana K. Presl |
ROSACEAE |
| Rosa woodsii Lindley |
ROSACEAE |
| Rubus idaeus L. ssp melanolasius (Dieck) Focke |
ROSACEAE |
| Rudbeckia ampla A. Nelson |
ASTERACEAE |
| Rumex aquaticus L. ssp occidentalis (S. Watson) Hultén |
POLYGONACEAE |
| Rumex crispus L. |
POLYGONACEAE |
| Rumex maritimus L. ssp fueginus (Philippi) Hultén |
POLYGONACEAE |
| Rumex triangulivalvis (Danser) Rechinger f. |
POLYGONACEAE |
| Rumex venosus Pursh |
POLYGONACEAE |
| Sabina osteosperma (Torrey) Antoine |
CUPRESSACEAE |
| Sabina scopulorum (Sargent) Rydberg |
CUPRESSACEAE |
| Sagittaria cuneata Sheldon |
ALISMATACEAE |
| Salicornia europaea L. ssp rubra (A. Nelson) Breitung |
CHENOPODIACEAE |
| Salix amygdaloides Andersson |
SALICACEAE |
| Salix exigua Nuttall |
SALICACEAE |
| Salix exigua Nuttall ssp exigua |
SALICACEAE |
| Salix lasiandra Bentham var caudata (Nuttall) Sudworth |
SALICACEAE |
| Salix ligulifolia (Ball ex C. K. Schneider) Ball ex E. C. Smith |
SALICACEAE |
| Salix lutea Nuttall |
SALICACEAE |
| Salix planifolia Pursh |
SALICACEAE |
| Salix scouleriana Barratt ex Hooker |
SALICACEAE |
| Salsola australis R. Brown |
CHENOPODIACEAE |
| Sambucus coerulea Rafinesque |
CAPRIFOLIACEAE |
| Sambucus microbotrys Rydberg |
CAPRIFOLIACEAE |
| Sarcobatus vermiculatus (Hooker) Torrey |
CHENOPODIACEAE |
| Schoenocrambe linearifolia (A. Gray) Rollins |
BRASSICACEAE |
| Schoenocrambe linifolia (Nuttall) Greene |
BRASSICACEAE |
| Schoenoplectus acutus (Mühlenberg) Löve & Löve |
CYPERACEAE |
| Schoenoplectus pungens (M. Vahl) Palla |
CYPERACEAE |
| Scirpus microcarpus J. & K. Presl |
CYPERACEAE |
| Scirpus pallidus (Britton) Fernald |
CYPERACEAE |
| Scutellaria galericulata L. var epilobiifolia (Hamilton) Jordal |
LAMIACEAE |
| Secale cereale L. |
POACEAE |
| Selaginella densa Rydberg |
SELAGINELLACEAE |
| Selaginella mutica D. C. Eaton |
SELAGINELLACEAE |
| Senecio integerrimus Nuttall |
ASTERACEAE |
| Senecio multicapitatus Greenman in Rydberg |
ASTERACEAE |
| Senecio serra Hooker |
ASTERACEAE |
| Seriphidium arbusculum (Nuttall) W. A. Weber |
ASTERACEAE |
| Seriphidium canum (Pursh) W. A. Weber |
ASTERACEAE |
| Seriphidium novum (A. Nelson) W. A. Weber |
ASTERACEAE |
| Seriphidium tridentatum (Nuttall) W. A. Weber |
ASTERACEAE |
| Seriphidium vaseyanum (Rydberg) W. A. Weber |
ASTERACEAE |
| Setaria viridis (L.) P. Beauvois |
POACEAE |
| Shepherdia argentea (Pursh) Nuttall |
ELAEAGNACEAE |
| Sidalcea neomexicana A. Gray |
MALVACEAE |
| Silene antirrhina L. |
CARYOPHYLLACEAE |
| Sinapis arvensis L. |
BRASSICACEAE |
| Sisymbrium altissimum L. |
BRASSICACEAE |
| Sisyrinchium montanum Greene |
IRIDACEAE |
| Solanum physalifolium Rusby var nitidibaccatum (Bitter) Edmonds |
SOLANACEAE |
| Solanum rostratum Dunal |
SOLANACEAE |
| Solanum triflorum Nuttall |
SOLANACEAE |
| Solidago canadensis L. |
ASTERACEAE |
| Solidago gigantea Aiton |
ASTERACEAE |
| Solidago nana Nuttall |
ASTERACEAE |
| Solidago nemoralis Aiton |
ASTERACEAE |
| Solidago velutina De Candolle |
ASTERACEAE |
| Sonchus asper (L.) J. Hill |
ASTERACEAE |
| Sonchus oleraceus L. |
ASTERACEAE |
| Sonchus uliginosus Bieberstein |
ASTERACEAE |
| Sparganium angustifolium Michaux |
SPARGANIACEAE |
| Spartina gracilis Trinius |
POACEAE |
| Spartina pectinata Link |
POACEAE |
| Spathulata spuria (Bieberstein) Löve & Löve |
CRASSULACEAE |
| Sphaeralcea coccinea (Pursh) Rydberg |
MALVACEAE |
| Sphaeralcea parvifolia A. Nelson |
MALVACEAE |
| Sphaeromeria argentea Nuttall |
ASTERACEAE |
| Sphaeromeria capitata Nuttall |
ASTERACEAE |
| Spirodela polyrhiza (L.) Schleiden |
LEMNACEAE |
| Sporobolus airoides (Torrey) Torrey |
POACEAE |
| Sporobolus cryptandrus (Torrey) A. Gray |
POACEAE |
| Stanleya pinnata (Pursh) Britton |
BRASSICACEAE |
| Stanleya pinnata (Pursh) Britton var integrifolia (James) Rollins |
BRASSICACEAE |
| Stanleya viridiflora Nuttall |
BRASSICACEAE |
| Stellaria umbellata Turczaninov ex Karilin & Kirilow |
ALSINACEAE |
| Stenogonum salsuginosum Nuttall |
POLYGONACEAE |
| Stenotus acaulis Nuttall |
ASTERACEAE |
| Stenotus armerioides Nuttall |
ASTERACEAE |
| Stephanomeria exigua Nuttall |
ASTERACEAE |
| Stephanomeria runcinata Nuttall |
ASTERACEAE |
| Stuckenia filiformis (Persoon) Börner |
POTAMOGETONACEAE |
| Suaeda calceoliformis (Hooker) Moquin |
CHENOPODIACEAE |
| Suaeda moquinii Torrey |
CHENOPODIACEAE |
| Suaeda nigra (Rafinesque) Macbride |
CHENOPODIACEAE |
| Swida sericea (L.) Holub |
CORNACEAE |
| Symphoricarpos longiflorus A. Gray |
CAPRIFOLIACEAE |
| Symphoricarpos occidentalis Hooker |
CAPRIFOLIACEAE |
| Symphoricarpos rotundifolius A. Gray |
CAPRIFOLIACEAE |
| Symphytum officinale L. |
BORAGINACEAE |
| Talinum parviflorum Nuttall ex Torrey & Gray |
PORTULACACEAE |
| Tamarix ramosissima Ledebour |
TAMARICACEAE |
| Taraxacum officinale G. H. Weber ex Wiggers |
ASTERACEAE |
| Tetradymia canescens De Candolle |
ASTERACEAE |
| Tetradymia nuttallii Torrey & Gray |
ASTERACEAE |
| Tetradymia spinosa Hooker & Arnott |
ASTERACEAE |
| Tetraneuris acaulis (Pursh) Greene var epunctata (A. Nelson) Kartesz & Gandhi |
ASTERACEAE |
| Tetraneuris ivesiana Greene |
ASTERACEAE |
| Tetraneuris torreyana (Nuttall) Greene |
ASTERACEAE |
| Thelypodiopsis elegans (Jones) Rydberg |
BRASSICACEAE |
| Thelypodium integrifolium (Nuttall) Endlicher |
BRASSICACEAE |
| Thermopsis divaricarpa A. Nelson |
FABACEAE |
| Thermopsis rhombifolia (Nuttall ex Pursh) Richardson |
FABACEAE |
| Thinopyrum intermedium (Host) Barkworth & Dewey |
POACEAE |
| Thlaspi arvense L. |
BRASSICACEAE |
| Tiquilia nuttallii (Bentham) A. Richard |
EHRETIACEAE |
| Tithymalus brachyceras (Engelmann) Small |
EUPHORBIACEAE |
| Tithymalus uralensis (Fischer ex Link) Prokhanov |
EUPHORBIACEAE |
| Townsendia incana Nuttall |
ASTERACEAE |
| Townsendia leptotes (A. Gray) Osterhout |
ASTERACEAE |
| Townsendia strigosa Nuttall |
ASTERACEAE |
| Toxicodendron rydbergii (Small ex Rydberg) Greene |
ANACARDIACEAE |
| Toxicoscordion paniculatum (Nuttall) Rydberg |
MELANTHIACEAE |
| Toxicoscordion venenosum (S. Watson) Rydberg |
MELANTHIACEAE |
| Tragopogon dubius Scopoli ssp major (Jacquin) Vollmann |
ASTERACEAE |
| Trifolium andinum Nuttall |
FABACEAE |
| Trifolium gymnocarpon Nuttall |
FABACEAE |
| Trifolium repens L. |
FABACEAE |
| Triglochin maritima L. |
JUNCAGINACEAE |
| Trimorpha lonchophylla (Hooker) Nesom |
ASTERACEAE |
| Tripterocalyx micranthus (Torrey) Hooker |
NYCTAGINACEAE |
| Trisetum spicatum (L.) Richter ssp. alaskanum (Nash) Hultén |
POACEAE |
| Trollius albiflorus (A. Gray) Rydberg |
HELLEBORACEAE |
| Turritis glabra L. |
BRASSICACEAE |
| Typha latifolia L. |
TYPHACEAE |
| Urtica gracilis Aiton ssp holosericea (Nuttall) W. A. Weber |
URTICACEAE |
| Valeriana capitata Pallas ex Link ssp acutiloba (Rydberg) F. G. Meyer |
VALERIANACEAE |
| Verbascum thapsus L. |
SCROPHULARIACEAE |
| Verbena bracteata Lagasca & Rodriguez |
VERBENACEAE |
| Veronica americana Schweinitz ex Bentham |
SCROPHULARIACEAE |
| Veronica catenata Pennell |
SCROPHULARIACEAE |
| Veronica peregrina L. ssp xalapensis (Humboldt,_Bonpland, & Kunth) Pennell |
SCROPHULARIACEAE |
| Vicia americana Mühlenberg |
FABACEAE |
| Viola adunca J. E. Smith |
VIOLACEAE |
| Viola praemorsa Douglas ex Lindley |
VIOLACEAE |
| Viola praemorsa Douglas ex Lindley ssp linguifolia (Nuttall) Baker & Clausen |
VIOLACEAE |
| Viola praemorsa Douglas ex Lindley ssp major (Hooker) M. S. Baker |
VIOLACEAE |
| Viola purpurea Kellogg ssp venosa (S. Watson) Baker & Clausen |
VIOLACEAE |
| Viola utahensis Baker & Clausen |
VIOLACEAE |
| Viola vallicola A. Nelson |
VIOLACEAE |
| Virgulaster ascendens (Lindley ex Hooker) Semple |
ASTERACEAE |
| Virgulus falcatus (Lindley) Reveal & Keener |
ASTERACEAE |
| Viticella orientalis (L.) W. A. Weber |
RANUNCULACEAE |
| Vulpia octoflora (Walter) Rydberg |
POACEAE |
| Woodsia oregana D.C. Eaton |
DRYOPTERIDACEAE |
| Woodsia oregana D.C. Eaton ssp cathcartiana (Robbinson) Windham |
DRYOPTERIDACEAE |
| Wyethia amplexicaulis (Nuttall) Nuttall |
ASTERACEAE |
| Wyethia scabra Hooker var scabra |
ASTERACEAE |
| Xanthium strumarium L. |
ASTERACEAE |
| Ximenesia encelioides Cavanilles |
ASTERACEAE |
| Xylorhiza glabriuscula Nuttall |
ASTERACEAE |
| Xylorhiza venusta (Jones) Heller |
ASTERACEAE |
| Zannichellia palustris L. |
ZANNICHELLIACEAE |
| Zuckia brandegei (A. Gray) Welsh & Stutz |
CHENOPODIACEAE |
