499 Records
| Citation | Family Name |
| Abies arizonica Merriam |
PINACEAE |
| Abies concolor (Gordon & Glendower) Lindley ex Hildebrand |
PINACEAE |
| Abronia fragrans Nuttall ex Hooker |
NYCTAGINACEAE |
| Acer glabrum Torrey |
ACERACEAE |
| Acetosella vulgaris (K. Koch) Fourreau |
POLYGONACEAE |
| Achillea lanulosa Nuttall |
ASTERACEAE |
| Achnatherum hymenoides (Roemer & Schultes) Barkworth |
POACEAE |
| Achnatherum nelsonii (Scribner) Barkworth |
POACEAE |
| Aconitum columbianum Nuttall ex Torrey & Gray |
HELLEBORACEAE |
| Aconitum columbianum Nuttall ex Torrey & Gray var. columbianum |
HELLEBORACEAE |
| Acrolasia albicaulis (Douglas ex Hooker) Rydberg |
LOASACEAE |
| Actaea rubra (Aiton) Willdenow |
HELLEBORACEAE |
| Adenolinum lewisii (Pursh) Löve & Löve |
LINACEAE |
| Agoseris aurantiaca (Hooker) Greene |
ASTERACEAE |
| Agoseris glauca (Pursh) Rafinesque |
ASTERACEAE |
| Agoseris glauca (Pursh) Rafinesque var. dasycephala (Torrey & Gray) Jepson |
ASTERACEAE |
| Agrostis scabra Willdenow |
POACEAE |
| Aletes lithophilus (Mathias) W. A. Weber |
APIACEAE |
| Aliciella pinnatifida (Nuttall ex A. Gray) J.M. Porter |
POLEMONIACEAE |
| Allium geyeri S. Watson |
ALLIACEAE |
| Allium textile Nelson & Macbride |
ALLIACEAE |
| Alopecurus aequalis Sobolewski |
POACEAE |
| Alyssum alyssoides (L.) L. |
BRASSICACEAE |
| Alyssum parviflorum M. Bieberstein var. micranthum (C. A. Meyer in Fisher & Meyer) Dorn |
BRASSICACEAE |
| Amaranthus blitoides S. Watson |
AMARANTHACEAE |
| Amaranthus retroflexus L. |
AMARANTHACEAE |
| Androsace chamaejasme Host ssp carinata (Torrey) Hultén |
PRIMULACEAE |
| Androsace septentrionalis L. |
PRIMULACEAE |
| Anemone cylindrica A. Gray |
RANUNCULACEAE |
| Anemone multifida Poiret var globosa (Nuttall) Torrey & Gray |
RANUNCULACEAE |
| Anemone riparia Fernald |
RANUNCULACEAE |
| Antennaria marginata Greene |
ASTERACEAE |
| Antennaria media Greene |
ASTERACEAE |
| Antennaria parvifolia Nuttall |
ASTERACEAE |
| Antennaria pulcherrima (Hooker) Greene ssp anaphaloides (Rydberg) W. A. Weber |
ASTERACEAE |
| Antennaria rosea Greene |
ASTERACEAE |
| Anticlea elegans (Pursh) Rydberg |
MELANTHIACEAE |
| Aphyllon fasciculatum (Nuttall) Torrey & Gray |
OROBANCHACEAE |
| Apocynum androsaemifolium L. |
APOCYNACEAE |
| Aquilegia coerulea James ex Torrey |
HELLEBORACEAE |
| Aquilegia elegantula Greene |
HELLEBORACEAE |
| Aristida divaricata Humboldt & Bonpland ex Willdenow |
POACEAE |
| Aristida purpurea Nuttall var longiseta (Steudel) Vasey |
POACEAE |
| Arnica cordifolia Hooker |
ASTERACEAE |
| Artemisia carruthii Wood {ex} Carruth |
ASTERACEAE |
| Artemisia frigida Willdenow |
ASTERACEAE |
| Artemisia ludoviciana Nuttall ssp ludoviciana |
ASTERACEAE |
| Asclepias latifolia (Torrey) Rafinesque |
ASCLEPIADACEAE |
| Asclepias uncialis Greene |
ASCLEPIADACEAE |
| Asplenium septentrionale (L.) Hoffman |
ASPLENIACEAE |
| Astragalus adsurgens Pallas var robustior Hooker |
FABACEAE |
| Astragalus agrestis Douglas ex G. Don |
FABACEAE |
| Astragalus alpinus L. |
FABACEAE |
| Astragalus bisulcatus (Hooker) A. Gray |
FABACEAE |
| Astragalus drummondii Douglas ex Hooker |
FABACEAE |
| Astragalus flexuosus (Hooker) G. Don |
FABACEAE |
| Astragalus lonchocarpus Torrey |
FABACEAE |
| Astragalus miser Douglas in Hooker var oblongifolius (Rydberg) Cronquist |
FABACEAE |
| Astragalus missouriensis Nuttall |
FABACEAE |
| Astragalus missouriensis Nuttall var missouriensis |
FABACEAE |
| Astragalus parryi A. Gray |
FABACEAE |
| Astragalus shortianus Nuttall in Torrey & Gray |
FABACEAE |
| Atragene columbiana Nuttall |
RANUNCULACEAE |
| Atriplex canescens (Pursh) Nuttall |
CHENOPODIACEAE |
| Atriplex powellii S. Watson |
CHENOPODIACEAE |
| Avenula hookeri (Scribner in Hackel) Holub |
POACEAE |
| Bahia dissecta (A. Gray) Britton |
ASTERACEAE |
| Batrachium trichophyllum (Chaix) van den Bosch |
RANUNCULACEAE |
| Besseya plantaginea (Bentham in De Candolle) Rydberg |
SCROPHULARIACEAE |
| Betula fontinalis Sargent |
BETULACEAE |
| Bidens tenuisecta A. Gray |
ASTERACEAE |
| Bistorta bistortoides (Pursh) Small |
POLYGONACEAE |
| Bistorta vivipara (L.) S. Gray |
POLYGONACEAE |
| Blepharoneuron tricholepis (Torrey) Nash |
POACEAE |
| Boechera drummondii (A. Gray) Löve & Löve |
BRASSICACEAE |
| Bromopsis pumpelliana (Scribner) Holub |
POACEAE |
| Calochortus gunnisonii S. Watson |
CALOCHORTACEAE |
| Calypso bulbosa (L.) Oakes |
ORCHIDACEAE |
| Calystegia sepium (L.) R. Brown ssp angulata Brummitt |
CONVOLVULACEAE |
| Camelina microcarpa Andrzejowski ex De Candolle |
BRASSICACEAE |
| Campanula parryi A. Gray |
CAMPANULACEAE |
| Campanula rotundifolia L. |
CAMPANULACEAE |
| Capsella bursa-pastoris (L.) Medicus |
BRASSICACEAE |
| Cardamine cordifolia A. Gray |
BRASSICACEAE |
| Carex aquatilis Wahlenberg |
CYPERACEAE |
| Carex arapahoensis Clokey |
CYPERACEAE |
| Carex chalciolepis Holm |
CYPERACEAE |
| Carex ebenea Rydberg |
CYPERACEAE |
| Carex lanuginosa Michaux |
CYPERACEAE |
| Carex macloviana D'Urville |
CYPERACEAE |
| Carex microptera Mackenzie |
CYPERACEAE |
| Carex nova L. H. Bailey |
CYPERACEAE |
| Carex oreocharis Holm |
CYPERACEAE |
| Carex utriculata F. Boott |
CYPERACEAE |
| Castilleja haydenii (A. Gray) Cockerell |
SCROPHULARIACEAE |
| Castilleja integra A. Gray in Torrey |
SCROPHULARIACEAE |
| Castilleja linariifolia Bentham in De Candolle |
SCROPHULARIACEAE |
| Castilleja miniata Douglas ex Hooker |
SCROPHULARIACEAE |
| Castilleja occidentalis Torrey |
SCROPHULARIACEAE |
| Castilleja sulphurea Rydberg |
SCROPHULARIACEAE |
| Ceanothus fendleri A. Gray |
RHAMNACEAE |
| Ceanothus velutinus Douglas ex Hooker |
RHAMNACEAE |
| Cerastium nutans Rafinesque var brachypodum Engelmann ex A. Gray |
ALSINACEAE |
| Cerastium strictum L. {emend.} Haenke |
ALSINACEAE |
| Cercocarpus montanus Rafinesque |
ROSACEAE |
| Chaenactis douglasii (Hooker) Hooker & Arnott |
ASTERACEAE |
| Chaetopappa ericoides (A. Gray) Nesom |
ASTERACEAE |
| Chamaesyce fendleri (Torrey & Gray) Small |
EUPHORBIACEAE |
| Chamerion danielsii D. Löve |
ONAGRACEAE |
| Chenopodium capitatum (L.) Ascherson |
CHENOPODIACEAE |
| Chenopodium fremontii S. Watson |
CHENOPODIACEAE |
| Chenopodium watsonii A. Nelson |
CHENOPODIACEAE |
| Chimaphila umbellata (L.) W. Barton ssp occidentalis (Rydberg) Hultén |
PYROLACEAE |
| Chlorocrepis tristis (Willdenow ex Sprengel) Löve & Löve ssp gracilis (Hooker) W. A. Weber |
ASTERACEAE |
| Chondrophylla prostrata (Haenke ex Jacquin) J. P. Anderson |
GENTIANACEAE |
| Chrysothamnus nauseosus (Pallas ex Pursh) Britton ssp bigelovii (A. Gray) Hall & Clements |
ASTERACEAE |
| Chrysothamnus nauseosus (Pallas ex Pursh) Britton ssp graveolens (Nuttall) Piper |
ASTERACEAE |
| Chrysothamnus vaseyi (A. Gray) Greene |
ASTERACEAE |
| Cicuta douglasii (De Candolle) Coulter & Rose |
APIACEAE |
| Claytonia rosea Rydberg |
PORTULACACEAE |
| Clematis ligusticifolia Nuttall ex Torrey & Gray |
RANUNCULACEAE |
| Clementsia rhodantha (A. Gray) Rose |
CRASSULACEAE |
| Cleome serrulata Pursh |
CAPPARACEAE |
| Collomia linearis Nuttall |
POLEMONIACEAE |
| Comandra umbellata (L.) Nuttall ssp pallida (A. De Candolle) Piehl |
SANTALACEAE |
| Comastoma tenellum (Rottboel) Toyokuni |
GENTIANACEAE |
| Conioselinum scopulorum (A. Gray) Coulter & Rose |
APIACEAE |
| Corallorhiza maculata Rafinesque |
ORCHIDACEAE |
| Corallorhiza trifida (L.) Chatelain |
ORCHIDACEAE |
| Corydalis aurea Willdenow |
FUMARIACEAE |
| Crunocallis chamissoi (Ledebour ex Sprengel) Rydberg |
PORTULACACEAE |
| Cymopterus montanus Torrey & Gray |
APIACEAE |
| Cynoglossum officinale L. |
BORAGINACEAE |
| Cystopteris fragilis (L.) Bernhardi |
DRYOPTERIDACEAE |
| Cystopteris reevesiana Lellinger |
DRYOPTERIDACEAE |
| Dactylis glomerata L. |
POACEAE |
| Dalea candida Willdenow var oligophylla (Torrey) Shinners |
FABACEAE |
| Dalea jamesii (Torrey) Torrey & Gray |
FABACEAE |
| Danthonia parryi Scribner |
POACEAE |
| Danthonia spicata (L.) P. Beauvois ex Roemer & Schultes var pinetorum Piper |
POACEAE |
| Delphinium alpestre Rydberg |
HELLEBORACEAE |
| Delphinium barbeyi (Huth) Huth |
HELLEBORACEAE |
| Delphinium carolinianum Walter ssp virescens (Nuttall) R. Brooks |
HELLEBORACEAE |
| Delphinium ramosum Rydberg |
HELLEBORACEAE |
| Delphinium wootonii Rydberg |
HELLEBORACEAE |
| Descurainia incisa (Engelmann ex A. Gray) Britton subsp. incisa |
BRASSICACEAE |
| Descurainia pinnata (Walter) Britton subsp. halictorum (Cockerell) Detling |
BRASSICACEAE |
| Desmanthus cooleyi (A. Eaton) Trelease |
FABACEAE |
| Distegia involucrata (Banks ex Sprengel) Cockerell |
CAPRIFOLIACEAE |
| Dodecatheon pulchellum (Rafinesque) Merrill |
PRIMULACEAE |
| Draba aurea M. Vahl ex Hornemann |
BRASSICACEAE |
| Draba grayana (Rydberg) C. L. Hitchcock |
BRASSICACEAE |
| Draba helleriana Greene |
BRASSICACEAE |
| Draba porsildii Mulligan |
BRASSICACEAE |
| Draba smithii Gilg ex O. E. Schulz |
BRASSICACEAE |
| Draba streptocarpa A. Gray |
BRASSICACEAE |
| Dracocephalum parviflorum Nuttall |
LAMIACEAE |
| Dryas octopetala L. ssp hookeriana (Juzepczuk) Hultén |
ROSACEAE |
| Drymocallis arguta (Pursh) Rydberg |
ROSACEAE |
| Dugaldia hoopesii (A. Gray) Rydberg |
ASTERACEAE |
| Elymus elymoides (Rafinesque) Swezey |
POACEAE |
| Elymus longifolius (J. G. Smith) Gould |
POACEAE |
| Elymus scribneri (Vasey) Jones |
POACEAE |
| Elymus trachycaulus (Link) Gould |
POACEAE |
| Epilobium ciliatum Rafinesque |
ONAGRACEAE |
| Epilobium clavatum Trelease |
ONAGRACEAE |
| Epilobium hornemannii Reichenbach |
ONAGRACEAE |
| Epilobium lactiflorum Haussknecht |
ONAGRACEAE |
| Equisetum arvense L. |
EQUISETACEAE |
| Eremogone fendleri (A. Gray) Ikonnikov |
ALSINACEAE |
| Erigeron coulteri T. C. Porter |
ASTERACEAE |
| Erigeron divergens Torrey & Gray |
ASTERACEAE |
| Erigeron eximius Greene |
ASTERACEAE |
| Erigeron flagellaris A. Gray |
ASTERACEAE |
| Erigeron formosissimus Greene |
ASTERACEAE |
| Erigeron pumilus Nuttall |
ASTERACEAE |
| Erigeron simplex Greene |
ASTERACEAE |
| Erigeron subtrinervis Rydberg |
ASTERACEAE |
| Eriogonum effusum Nuttall |
POLYGONACEAE |
| Eriogonum jamesii Bentham in A. De Candolle |
POLYGONACEAE |
| Eriogonum umbellatum Torrey var aureum (Gandoger) Reveal |
POLYGONACEAE |
| Eritrichum aretioides (Chamisso) De Candolle |
BORAGINACEAE |
| Erysimum capitatum (Douglas) Greene |
BRASSICACEAE |
| Erysimum cheiranthoides L. ssp altum Ahti |
BRASSICACEAE |
| Erythrocoma triflora (Pursh) Greene |
ROSACEAE |
| Fallopia convolvulus (L.) Löve |
POLYGONACEAE |
| Festuca arizonica Vasey |
POACEAE |
| Festuca hallii (Vasey) Piper |
POACEAE |
| Festuca thurberi Vasey in Rothrock |
POACEAE |
| Fragaria virginiana P. Miller ssp glauca (S. Watson) Staudt |
ROSACEAE |
| Gaillardia aristata Pursh |
ASTERACEAE |
| Gaillardia pinnatifida Torrey |
ASTERACEAE |
| Galium septentrionale Roemer & Schultes |
RUBIACEAE |
| Galium triflorum Michaux |
RUBIACEAE |
| Gaura coccinea Nuttall ex Pursh |
ONAGRACEAE |
| Gayophytum diffusum Torrey & Gray ssp parviflorum Lewis & Szweykowski |
ONAGRACEAE |
| Gentianella acuta (Michaux) Hiitonen |
GENTIANACEAE |
| Gentianopsis barbellata (Engelmann) Iltis |
GENTIANACEAE |
| Geranium caespitosum James ex Torrey |
GERANIACEAE |
| Geranium richardsonii Fischer & Trautvetter |
GERANIACEAE |
| Geum aleppicum Jacquin ssp strictum (Aiton) Clausen |
ROSACEAE |
| Geum macrophyllum Willdenow |
ROSACEAE |
| Gilia ophthalmoides Brand |
POLEMONIACEAE |
| Giliastrum rigidulum (Bentham) Rydberg ssp acerosum (A. Gray) W. A. Weber |
POLEMONIACEAE |
| Glandularia bipinnatifida (Nuttall) Nuttall |
VERBENACEAE |
| Goodyera oblongifolia Rafinesque |
ORCHIDACEAE |
| Grindelia aphanactis Rydberg |
ASTERACEAE |
| Grindelia revoluta Steyermark |
ASTERACEAE |
| Grindelia squarrosa (Pursh) Dunal var nuda (Wood) A. Gray |
ASTERACEAE |
| Gutierrezia sarothrae (Pursh) Britton & Rusby |
ASTERACEAE |
| Hackelia floribunda (Lehmann) I. M. Johnston |
BORAGINACEAE |
| Halerpestes cymbalaria (Pursh) Greene ssp saximontana (Fernald) Moldenke |
RANUNCULACEAE |
| Hecatonia scelerata (L.) Fourreau |
RANUNCULACEAE |
| Helianthella quinquenervis (Hooker) A. Gray |
ASTERACEAE |
| Helianthus rigidus (Cassini) Desfontaines ssp subrhomboideus (Rydberg) Heiser |
ASTERACEAE |
| Heliomeris multiflora Nuttall var multiflora |
ASTERACEAE |
| Heliopsis helianthoides (L.) Sweet var scabra (Dunal) Fernald |
ASTERACEAE |
| Heracleum sphondylium L. ssp montanum (Schleicher ex Gaudin) Briquet in Schinz & Thellung |
APIACEAE |
| Hesperostipa comata (Trinius & Ruprecht) Barkworth |
POACEAE |
| Heterotheca pumila (Greene) Semple |
ASTERACEAE |
| Heterotheca villosa (Pursh) Shinners |
ASTERACEAE |
| Heuchera parvifolia Nuttall ex Torrey & Gray |
SAXIFRAGACEAE |
| Hierochloë hirta (Schrank) Borbas ssp arctica (J. Presl in K. Presl) G. Weimarck |
POACEAE |
| Hippochaete hyemalis (L.) Bruhin |
EQUISETACEAE |
| Hippochaete laevigata (A. Braun) Farwell |
EQUISETACEAE |
| Hirculus platysepalus (Trautvetter) W. A. Weber ssp crandallii (Gandoger) W. A. Weber |
SAXIFRAGACEAE |
| Holodiscus dumosus (Nuttall ex Hooker) Heller |
ROSACEAE |
| Hydrophyllum fendleri (A. Gray) Heller |
HYDROPHYLLACEAE |
| Hymenopappus filifolius Hooker var cinereus (Rydberg) I. M. Johnston |
ASTERACEAE |
| Ipomopsis aggregata (Pursh) V. Grant ssp candida (Rydberg) V. & A. Grant |
POLEMONIACEAE |
| Ipomopsis aggregata (Pursh) V. Grant ssp collina (Greene) Wilken & Allard |
POLEMONIACEAE |
| Ipomopsis spicata (Nuttall) V. Grant |
POLEMONIACEAE |
| Iris missouriensis Nuttall |
IRIDACEAE |
| Jamesia americana Torrey & Gray |
HYDRANGEACEAE |
| Juncus arcticus Willdenow ssp ater (Rydberg) Hultén |
JUNCACEAE |
| Juncus drummondii E. Meyer |
JUNCACEAE |
| Juncus longistylis Torrey |
JUNCACEAE |
| Juncus parryi Engelmann |
JUNCACEAE |
| Juniperus communis L. ssp alpina (J. E. Smith) Celakovsky |
CUPRESSACEAE |
| Koeleria macrantha (Ledebour) Schultes |
POACEAE |
| Lactuca serriola L. |
ASTERACEAE |
| Lactuca tatarica (L.) C. A. Meyer ssp pulchella (Pursh) Stebbins |
ASTERACEAE |
| Lappula redowskii (Hornemann) Greene |
BORAGINACEAE |
| Lathyrus leucanthus Rydberg |
FABACEAE |
| Leonurus cardiaca L. |
LAMIACEAE |
| Lepidium densiflorum Schrader |
BRASSICACEAE |
| Leptodactylon pungens (Torrey) Rydberg |
POLEMONIACEAE |
| Lesquerella montana (A. Gray) S. Watson |
BRASSICACEAE |
| Lidia obtusiloba (Rydberg) Löve & Löve |
ALSINACEAE |
| Ligularia amplectens (A. Gray) W. A. Weber |
ASTERACEAE |
| Ligularia bigelovii (A. Gray) W. A. Weber var hallii (A. Gray) W. A. Weber |
ASTERACEAE |
| Ligularia taraxacoides (A. Gray) W. A. Weber |
ASTERACEAE |
| Ligusticum porteri Coulter & Rose |
APIACEAE |
| Linnaea borealis L. ssp americana (Forbes) Hultén ex Clausen |
CAPRIFOLIACEAE |
| Lithophragma tenellum Nuttall |
SAXIFRAGACEAE |
| Lithospermum multiflorum Torrey ex A. Gray |
BORAGINACEAE |
| Lupinus argenteus Pursh |
FABACEAE |
| Lupinus kingii S. Watson |
FABACEAE |
| Lupinus plattensis S. Watson |
FABACEAE |
| Lupinus pusillus Pursh |
FABACEAE |
| Luzula parviflora (Ehrhart) Desvaux |
JUNCACEAE |
| Lycium pallidum Miers |
SOLANACEAE |
| Lygodesmia juncea (Pursh) D. Don |
ASTERACEAE |
| Machaeranthera bigelovii (A. Gray) Greene |
ASTERACEAE |
| Machaeranthera pattersonii (A. Gray) Greene |
ASTERACEAE |
| Machaeranthera tanacetifolia (Humboldt, Bonpland, & Kunth) Nees |
ASTERACEAE |
| Mahonia repens (Lindley) G. Don |
BERBERIDACEAE |
| Maianthemum amplexicaule (Nuttall) W. A. Weber |
CONVALLARIACEAE |
| Maianthemum stellatum (L.) Link |
CONVALLARIACEAE |
| Malva neglecta Wallroth |
MALVACEAE |
| Marrubium vulgare L. |
LAMIACEAE |
| Medicago lupulina L. |
FABACEAE |
| Melampodium leucanthum Torrey & Gray |
ASTERACEAE |
| Melandrium dioicum (L.) Cosson & Germain |
CARYOPHYLLACEAE |
| Melilotus albus Medicus |
FABACEAE |
| Melilotus officinale (L.) Pallas |
FABACEAE |
| Mentha arvensis L. |
LAMIACEAE |
| Mertensia ciliata (James ex Torrey) G. Don |
BORAGINACEAE |
| Mertensia franciscana Heller |
BORAGINACEAE |
| Mertensia lanceolata (Pursh) A. De Candolle |
BORAGINACEAE |
| Mertensia lanceolata (Pursh) A. De Candolle var. bakeri |
BORAGINACEAE |
| Micranthes odontoloma (Piper) Heller |
SAXIFRAGACEAE |
| Micranthes rhomboidea (Greene) Small |
SAXIFRAGACEAE |
| Microsteris gracilis (Douglas ex Hooker) Greene ssp humilis (Greene) V. Grant |
POLEMONIACEAE |
| Mimulus guttatus De Candolle |
SCROPHULARIACEAE |
| Mirabilis multiflora (Torrey) A. Gray |
NYCTAGINACEAE |
| Moehringia lateriflora (L.) Fenzl |
ALSINACEAE |
| Monarda fistulosa L. var menthifolia (R. Graham) Fernald |
LAMIACEAE |
| Monarda pectinata Nuttall |
LAMIACEAE |
| Moneses uniflora (L.) A. Gray |
PYROLACEAE |
| Monolepis nuttalliana (Schultes) Greene |
CHENOPODIACEAE |
| Muhlenbergia montana (Nuttall) A. S. Hitchcock |
POACEAE |
| Noccaea montana (L.) F. K. Meyer |
BRASSICACEAE |
| Nuttallia multiflora (Nuttall) Greene |
LOASACEAE |
| Nuttallia nuda (Pursh) Greene |
LOASACEAE |
| Nuttallia rusbyi (Wooton) Rydberg |
LOASACEAE |
| Oenothera caespitosa Nuttall ex Fraser ssp macroglottis (Rydberg) 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 harringtonii W. L. Wagner et al in W. L. Wagner |
ONAGRACEAE |
| Oenothera villosa Thunberg ssp strigosa (Rydberg) Dietrich & Raven |
ONAGRACEAE |
| Onopordum tauricum Willdenow |
ASTERACEAE |
| Oreobroma pygmaea (A. Gray) T. J. Howell |
PORTULACACEAE |
| Oreochrysum parryi (A. Gray) Rydberg |
ASTERACEAE |
| Oreoxis bakeri Coulter & Rose |
APIACEAE |
| Orthilia secunda (L.) House |
PYROLACEAE |
| Orthocarpus luteus Nuttall |
SCROPHULARIACEAE |
| Osmorhiza depauperata Philippi |
APIACEAE |
| Oxalis violacea L. |
OXALIDACEAE |
| Oxybaphus linearis (Pursh) B. L. Robinson |
NYCTAGINACEAE |
| Oxypolis fendleri (A. Gray) Heller |
APIACEAE |
| Oxytropis lambertii Pursh |
FABACEAE |
| Oxytropis sericea Nuttall |
FABACEAE |
| Oönopsis foliosa (A. Gray) Greene var foliosa |
ASTERACEAE |
| Packera fendleri (A. Gray) Weber & Löve |
ASTERACEAE |
| Packera pseudaurea (Rydberg) Weber & Löve ssp flavula (Greene) Weber & Löve |
ASTERACEAE |
| Packera tridenticulata (Rydberg) Weber & Löve |
ASTERACEAE |
| Packera werneriifolia (A. Gray) Weber & Löve |
ASTERACEAE |
| Padus virginiana (L.) P. Miller ssp melanocarpa (A. Nelson) W. A. Weber |
ROSACEAE |
| Panicum virgatum L. |
POACEAE |
| Paxistima myrsinites (Pursh) Rafinesque |
CELASTRACEAE |
| Pedicularis canadensis L. ssp fluviatilis (Heller) W. A. Weber |
SCROPHULARIACEAE |
| Pedicularis groenlandica Retzius |
SCROPHULARIACEAE |
| Pedicularis parryi A. Gray ssp parryi |
SCROPHULARIACEAE |
| Pedicularis procera A. Gray |
SCROPHULARIACEAE |
| Pedicularis racemosa Douglas ex Hooker ssp alba Pennell |
SCROPHULARIACEAE |
| Pedicularis scopulorum A. Gray |
SCROPHULARIACEAE |
| Penstemon angustifolius Nuttall ex Pursh |
SCROPHULARIACEAE |
| Penstemon angustifolius Nuttall ex Pursh ssp caudatus (Heller) Keck |
SCROPHULARIACEAE |
| Penstemon auriberbis Pennell |
SCROPHULARIACEAE |
| Penstemon barbatus (Cavanilles) Roth |
SCROPHULARIACEAE |
| Penstemon strictus Bentham in De Candolle |
SCROPHULARIACEAE |
| Penstemon virgatus A. Gray ssp asa-grayi Crosswhite |
SCROPHULARIACEAE |
| Penstemon whippleanus A. Gray |
SCROPHULARIACEAE |
| Pentaphylloides floribunda (Pursh) Löve |
ROSACEAE |
| Phacelia alba Rydberg |
HYDROPHYLLACEAE |
| Phacelia heterophylla Pursh |
HYDROPHYLLACEAE |
| Phleum commutatum Gaudin |
POACEAE |
| Phlox longifolia Nuttall |
POLEMONIACEAE |
| Phlox sibirica L. ssp pulvinata (Wherry) W. A. Weber |
POLEMONIACEAE |
| Physalis hederifolia A. Gray var cordifolia (A. Gray) Waterfall |
SOLANACEAE |
| Physocarpus monogynus (Torrey) Coulter |
ROSACEAE |
| Picea engelmannii Parry ex Engelmann |
PINACEAE |
| Picradenia richardsonii Hooker var. floribunda (Gray) Weber |
ASTERACEAE |
| Picradeniopsis oppositifolia (Nuttall) Rydberg |
ASTERACEAE |
| Pinus aristata Engelmann |
PINACEAE |
| Pinus flexilis James |
PINACEAE |
| Plantago major L. |
PLANTAGINACEAE |
| Plantago patagonica Jacquin |
PLANTAGINACEAE |
| Platanthera huronensis (Nuttall) Lindley |
ORCHIDACEAE |
| Platanthera purpurascens (Rydberg) Sheviak & W.F. Jennings |
ORCHIDACEAE |
| Pneumonanthe parryi (Engelmann) Greene |
GENTIANACEAE |
| Poa alpina L. |
POACEAE |
| Poa annua L. |
POACEAE |
| Poa arctica R. Brown |
POACEAE |
| Poa compressa L. |
POACEAE |
| Poa cusickii Vasey ssp epilis (Scribner) W. A. Weber |
POACEAE |
| Poa fendleriana (Steudel) Vasey |
POACEAE |
| Poa glaucifolia Scribner & Williams |
POACEAE |
| Poa pratensis L. |
POACEAE |
| Poa reflexa Vasey & Scribner |
POACEAE |
| Poa tracyi Vasey |
POACEAE |
| Podistera eastwoodiae (Coulter & Rose) Mathias & Constance |
APIACEAE |
| Polanisia dodecandra (L.) De Candolle |
CAPPARACEAE |
| Polemonium brandegei (A. Gray) Greene |
POLEMONIACEAE |
| Polemonium foliosissimum (A. Gray) A. Gray |
POLEMONIACEAE |
| Polemonium pulcherrimum Hooker ssp delicatum (Rydberg) Brand |
POLEMONIACEAE |
| Polygonum arenastrum Boreau |
POLYGONACEAE |
| Polypodium saximontanum Windham |
POLYPODIACEAE |
| Polystichum lonchitis (L.) Roth |
DRYOPTERIDACEAE |
| Potentilla concinna Richardson var bicrenata (Rydberg) Welsh & Johnston |
ROSACEAE |
| Potentilla concinna Richardson var. concinna |
ROSACEAE |
| Potentilla diversifolia Lehmann |
ROSACEAE |
| Potentilla gracilis Douglas |
ROSACEAE |
| Potentilla hippiana Lehmann |
ROSACEAE |
| Potentilla norvegica L. |
ROSACEAE |
| Potentilla pensylvanica L. |
ROSACEAE |
| Potentilla pulcherrima Lehmann |
ROSACEAE |
| Potentilla subjuga Rydberg |
ROSACEAE |
| Primula angustifolia Torrey |
PRIMULACEAE |
| Primula parryi A. Gray |
PRIMULACEAE |
| Prunella vulgaris L. |
LAMIACEAE |
| Prunus americana H. Marshall |
ROSACEAE |
| Pseudocymopterus montanus (A. Gray) Coulter & Rose |
APIACEAE |
| Pseudognaphalium canescens (De Candolle) W. A. Weber |
ASTERACEAE |
| Pseudotsuga menziesii (Mirbel) Franco |
PINACEAE |
| Psilochenia runcinata (James ex Torrey) Löve & Löve |
ASTERACEAE |
| Psilostrophe bakeri Greene |
ASTERACEAE |
| Psoralidium lanceolatum (Pursh) Rydberg |
FABACEAE |
| Psoralidium tenuiflorum (Pursh) Rydberg |
FABACEAE |
| Psychrophila leptosepala (De Candolle) W. A. Weber |
HELLEBORACEAE |
| Pterogonum alatum (Torrey) Gross |
POLYGONACEAE |
| Pulsatilla patens (L.) P. Miller ssp multifida (Pritzel) Zamels |
RANUNCULACEAE |
| Pyrola chlorantha Swartz |
PYROLACEAE |
| Pyrola minor L. |
PYROLACEAE |
| Quercus gambelii Nuttall |
FAGACEAE |
| Quincula lobata (Torrey) Rafinesque |
SOLANACEAE |
| Ranunculus inamoenus Greene |
RANUNCULACEAE |
| Ranunculus macauleyi A. Gray |
RANUNCULACEAE |
| Ranunculus macounii Britton |
RANUNCULACEAE |
| Ranunculus pedatifidus J. E. Smith |
RANUNCULACEAE |
| Rhinanthus minor L. ssp borealis (Sterneck) Löve |
SCROPHULARIACEAE |
| Rhodiola integrifolia Rafinesque |
CRASSULACEAE |
| Rhus aromatica Aiton ssp trilobata (Nuttall ex Torrey & Gray) W. A. Weber |
ANACARDIACEAE |
| Ribes aureum Pursh |
GROSSULARIACEAE |
| Ribes inerme Rydberg |
GROSSULARIACEAE |
| Ribes montigenum McClatchie |
GROSSULARIACEAE |
| Robinia neomexicana A. Gray |
FABACEAE |
| Rosa sayi Schweinitz |
ROSACEAE |
| Rosa woodsii Lindley |
ROSACEAE |
| Rubus idaeus L. ssp melanolasius (Dieck) Focke |
ROSACEAE |
| Rudbeckia ampla A. Nelson |
ASTERACEAE |
| Rudbeckia hirta L. |
ASTERACEAE |
| Rumex crispus L. |
POLYGONACEAE |
| Rumex venosus Pursh |
POLYGONACEAE |
| Rydbergia brandegei (T. C. Porter) Rydberg |
ASTERACEAE |
| Sabina monosperma (Engelmann) Rydberg |
CUPRESSACEAE |
| Sabina scopulorum (Sargent) Rydberg |
CUPRESSACEAE |
| Salix exigua Nuttall ssp exigua |
SALICACEAE |
| Salix monticola Bebb in Coulter |
SALICACEAE |
| Salix reticulata L. ssp nivalis (Hooker) Löve et al. |
SALICACEAE |
| Salsola australis R. Brown |
CHENOPODIACEAE |
| Sambucus microbotrys Rydberg |
CAPRIFOLIACEAE |
| Sanguisorba minor Scopoli |
ROSACEAE |
| Scrophularia lanceolata Pursh |
SCROPHULARIACEAE |
| Scutellaria brittonii T. C. Porter |
LAMIACEAE |
| Selaginella densa Rydberg |
SELAGINELLACEAE |
| Selaginella mutica D. C. Eaton |
SELAGINELLACEAE |
| Selaginella underwoodii Hieronymus |
SELAGINELLACEAE |
| Selaginella weatherbiana Tryon |
SELAGINELLACEAE |
| Senecio atratus Greene |
ASTERACEAE |
| Senecio eremophilus Richardson ssp kingii (Rydberg) Douglas & R.-Douglas |
ASTERACEAE |
| Senecio spartioides Torrey & Gray |
ASTERACEAE |
| Senecio wootonii Greene |
ASTERACEAE |
| Shepherdia canadensis (L.) Nuttall |
ELAEAGNACEAE |
| Sibbaldia procumbens L. |
ROSACEAE |
| Sidalcea candida A. Gray |
MALVACEAE |
| Silene acaulis (L.) L. ssp subacaulescens (F. N. Williams) Hitchcock & Maguire |
CARYOPHYLLACEAE |
| Sisyrinchium montanum Greene |
IRIDACEAE |
| Solanum triflorum Nuttall |
SOLANACEAE |
| Solidago canadensis L. |
ASTERACEAE |
| Solidago gigantea Aiton |
ASTERACEAE |
| Solidago multiradiata Aiton |
ASTERACEAE |
| Solidago simplex Humboldt, Bonpland & Kunth var. nana (A. Gray) G.S. Ringius |
ASTERACEAE |
| Solidago simplex Humboldt, Bonpland & Kunth var. simplex |
ASTERACEAE |
| Spergulastrum lanuginosum Michaux ssp saxosum (A. Gray) W. A. Weber |
ALSINACEAE |
| Sphaeralcea coccinea (Pursh) Rydberg |
MALVACEAE |
| Sporobolus cryptandrus (Torrey) A. Gray |
POACEAE |
| Stanleya pinnata (Pursh) Britton |
BRASSICACEAE |
| Stellaria longifolia Mühlenberg ex Willdenow |
ALSINACEAE |
| Stellaria longipes Goldie |
ALSINACEAE |
| Streptopus fassettii Löve & Löve |
UVULARIACEAE |
| Symphoricarpos occidentalis Hooker |
CAPRIFOLIACEAE |
| Symphoricarpos rotundifolius A. Gray |
CAPRIFOLIACEAE |
| Taraxacum officinale G. H. Weber ex Wiggers |
ASTERACEAE |
| Tetradymia canescens De Candolle |
ASTERACEAE |
| Tetraneuris acaulis (Pursh) Greene |
ASTERACEAE |
| Tetraneuris brevifolia Greene |
ASTERACEAE |
| Teucrium laciniatum Torrey |
LAMIACEAE |
| Thalictrum fendleri Engelmann ex A. Gray |
THALICTRACEAE |
| Thelesperma filifolium (Hooker) A. Gray var intermedium (Rydberg) Shinners |
ASTERACEAE |
| Thermopsis divaricarpa A. Nelson |
FABACEAE |
| Thermopsis rhombifolia (Nuttall ex Pursh) Richardson |
FABACEAE |
| Thlaspi arvense L. |
BRASSICACEAE |
| Tithymalus brachyceras (Engelmann) Small |
EUPHORBIACEAE |
| Tithymalus uralensis (Fischer ex Link) Prokhanov |
EUPHORBIACEAE |
| Townsendia eximia A. Gray |
ASTERACEAE |
| Tragia ramosa (Müller-Argoviensis in De Candolle) Torrey |
EUPHORBIACEAE |
| Tragopogon dubius Scopoli ssp major (Jacquin) Vollmann |
ASTERACEAE |
| Tribulus terrestris L. |
ZYGOPHYLLACEAE |
| Trifolium attenuatum Greene |
FABACEAE |
| Trifolium dasyphyllum Torrey & Gray |
FABACEAE |
| Trifolium hybridum L. |
FABACEAE |
| Trifolium nanum Torrey |
FABACEAE |
| Trifolium parryi A. Gray |
FABACEAE |
| Trifolium pratense L. |
FABACEAE |
| Trifolium repens L. |
FABACEAE |
| Trifolium salictorum Greene ex Rydberg |
FABACEAE |
| Trimorpha lonchophylla (Hooker) Nesom |
ASTERACEAE |
| Tripterocalyx micranthus (Torrey) Hooker |
NYCTAGINACEAE |
| Trisetum montanum Vasey |
POACEAE |
| Urtica gracilis Aiton ssp gracilis |
URTICACEAE |
| Vaccinium myrtillus L. ssp oreophilum (Rydberg) Löve et al. |
ERICACEAE |
| Valeriana capitata Pallas ex Link ssp acutiloba (Rydberg) F. G. Meyer |
VALERIANACEAE |
| Veratrum tenuipetalum Heller |
MELANTHIACEAE |
| Verbena bracteata Lagasca & Rodriguez |
VERBENACEAE |
| Veronica americana Schweinitz ex Bentham |
SCROPHULARIACEAE |
| Veronica nutans Bongard |
SCROPHULARIACEAE |
| Veronica peregrina L. ssp xalapensis (Humboldt,_Bonpland, & Kunth) Pennell |
SCROPHULARIACEAE |
| Veronicastrum serpyllifolium L. ssp humifusum (Dickson) W. A. Weber |
SCROPHULARIACEAE |
| Vicia americana Mühlenberg |
FABACEAE |
| Viola adunca J. E. Smith |
VIOLACEAE |
| Viola labradorica Schrank |
VIOLACEAE |
| Viola scopulorum (A. Gray) Greene |
VIOLACEAE |
| Viola sororia Willdenow var affinis (Le_Conte) McKinney |
VIOLACEAE |
| Vulpia octoflora (Walter) Rydberg |
POACEAE |
| Woodsia oregana D.C. Eaton ssp cathcartiana (Robbinson) Windham |
DRYOPTERIDACEAE |
| Zinnia grandiflora Nuttall |
ASTERACEAE |
