494 Records
| Citation | Family Name |
| Abies bifolia A. Murray |
PINACEAE |
| Abies concolor (Gordon & Glendower) Lindley ex Hildebrand |
PINACEAE |
| Acer glabrum Torrey |
ACERACEAE |
| Achillea lanulosa Nuttall |
ASTERACEAE |
| Achnatherum hymenoides (Roemer & Schultes) Barkworth |
POACEAE |
| Acomastylis rossii (R. Brown) Greene ssp turbinata (Rydberg) W. A. Weber |
ROSACEAE |
| Acroptilon repens (L.) De Candolle |
ASTERACEAE |
| Adenolinum lewisii (Pursh) Löve & Löve |
LINACEAE |
| Agrostis gigantea Roth |
POACEAE |
| Agrostis scabra Willdenow |
POACEAE |
| Aliciella pinnatifida (Nuttall ex A. Gray) J.M. Porter |
POLEMONIACEAE |
| Alisma gramineum Lejeune |
ALISMATACEAE |
| Allium cernuum Roth |
ALLIACEAE |
| Almutaster pauciflorus (Nuttall) Löve & Löve |
ASTERACEAE |
| Alnus incana (L.) Moench ssp tenuifolia (Nuttall) Breitung |
BETULACEAE |
| Alopecurus aequalis Sobolewski |
POACEAE |
| Amaranthus retroflexus L. |
AMARANTHACEAE |
| Ambrosia acanthicarpa Hooker |
ASTERACEAE |
| Amelanchier alnifolia Nuttall |
ROSACEAE |
| Amphiscirpus nevadensis (S. Watson) Oteng-Yeboah |
CYPERACEAE |
| Androsace chamaejasme Host ssp carinata (Torrey) Hultén |
PRIMULACEAE |
| Androsace septentrionalis L. |
PRIMULACEAE |
| Anemone multifida Poiret var globosa (Nuttall) Torrey & Gray |
RANUNCULACEAE |
| Angelica grayi (Coulter & Rose) Coulter & Rose |
APIACEAE |
| Antennaria media Greene |
ASTERACEAE |
| Antennaria microphylla Rydberg |
ASTERACEAE |
| Antennaria pulcherrima (Hooker) Greene ssp anaphaloides (Rydberg) W. A. Weber |
ASTERACEAE |
| Antennaria rosea Greene |
ASTERACEAE |
| Antennaria umbrinella Rydberg |
ASTERACEAE |
| Anticlea elegans (Pursh) Rydberg |
MELANTHIACEAE |
| Apocynum cannabinum L. |
APOCYNACEAE |
| Aquilegia coerulea James ex Torrey |
HELLEBORACEAE |
| Arabis hirsuta (L.) Scopoli |
BRASSICACEAE |
| Arctostaphylos uva-ursi (L.) Sprengel |
ERICACEAE |
| Argentina anserina (L.) Rydberg |
ROSACEAE |
| Argyrochosma fendleri (Kunze) Windham |
PTERIDACEAE |
| Artemisia biennis Willdenow |
ASTERACEAE |
| Artemisia franserioides Greene |
ASTERACEAE |
| Artemisia frigida Willdenow |
ASTERACEAE |
| Artemisia longifolia Nuttall |
ASTERACEAE |
| Artemisia ludoviciana Nuttall ssp ludoviciana |
ASTERACEAE |
| Artemisia scopulorum A. Gray |
ASTERACEAE |
| Asclepias speciosa Torrey |
ASCLEPIADACEAE |
| Aster lanceolatus Willdenow ssp hesperius (A. Gray) Semple & Chmielewski |
ASTERACEAE |
| Astragalus agrestis Douglas ex G. Don |
FABACEAE |
| Astragalus alpinus L. |
FABACEAE |
| Astragalus bodinii Sheldon |
FABACEAE |
| Astragalus ceramicus Sheldon var filifolius (A. Gray) F. J. Hermann |
FABACEAE |
| Astragalus drummondii Douglas ex Hooker |
FABACEAE |
| Astragalus flexuosus (Hooker) G. Don |
FABACEAE |
| Astragalus hallii A. Gray |
FABACEAE |
| Atriplex argentea Nuttall |
CHENOPODIACEAE |
| Atriplex canescens (Pursh) Nuttall |
CHENOPODIACEAE |
| Atriplex rosea L. |
CHENOPODIACEAE |
| Atriplex wolfii S. Watson |
CHENOPODIACEAE |
| Bassia hyssopifolia (Pallas) Kuntze |
CHENOPODIACEAE |
| Bassia sieversiana (Pallas) W. A. Weber |
CHENOPODIACEAE |
| Batrachium trichophyllum (Chaix) van den Bosch |
RANUNCULACEAE |
| Beckmannia syzigachne (Steudel) Fernald ssp baicalensis (Kuznetzow) Koyama & Kuwano |
POACEAE |
| Bidens cernua L. |
ASTERACEAE |
| Bidens tenuisecta A. Gray |
ASTERACEAE |
| Bidens vulgata Greene |
ASTERACEAE |
| Bistorta vivipara (L.) S. Gray |
POLYGONACEAE |
| Boechera drummondii (A. Gray) Löve & Löve |
BRASSICACEAE |
| Boechera lignifera (A. Nelson) W. A. Weber |
BRASSICACEAE |
| Bolboschoenus maritimus (L.) Palla ssp paludosus (A. Nelson) Löve & Löve |
CYPERACEAE |
| Brachyactis frondosa (Nuttall) A. Gray |
ASTERACEAE |
| Brassica napus L. |
BRASSICACEAE |
| Brickellia grandiflora (Hooker) Nuttall |
ASTERACEAE |
| Bromopsis porteri (Coulter) Holub |
POACEAE |
| Bromopsis pumpelliana (Scribner) Holub |
POACEAE |
| Calamagrostis canadensis (Michaux) P. Beauvois |
POACEAE |
| Calamagrostis purpurascens R. Brown in Richardson |
POACEAE |
| Campanula parryi A. Gray |
CAMPANULACEAE |
| Campanula uniflora L. |
CAMPANULACEAE |
| Cardamine cordifolia A. Gray |
BRASSICACEAE |
| Cardaria chalepensis (L.) Handel-Mazzetti |
BRASSICACEAE |
| Cardaria latifolia (L.) Spach |
BRASSICACEAE |
| Cardaria pubescens (C. A. Meyer) Jarmolenko |
BRASSICACEAE |
| Carex albo-nigra Mackenzie in Rydberg |
CYPERACEAE |
| Carex atherodes Sprengel |
CYPERACEAE |
| Carex bella L. H. Bailey |
CYPERACEAE |
| Carex chalciolepis Holm |
CYPERACEAE |
| Carex douglasii F. Boott in Hooker |
CYPERACEAE |
| Carex ebenea Rydberg |
CYPERACEAE |
| Carex elynoides Holm |
CYPERACEAE |
| Carex foenea Willdenow |
CYPERACEAE |
| Carex geophila Mackenzie |
CYPERACEAE |
| Carex lanuginosa Michaux |
CYPERACEAE |
| Carex nigricans C. A. Meyer |
CYPERACEAE |
| Carex obtusata Liljeblad |
CYPERACEAE |
| Carex phaeocephala Piper |
CYPERACEAE |
| Carex praegracilis F. Boott |
CYPERACEAE |
| Carex rupestris Allioni ssp drummondiana (Dewey) Holub |
CYPERACEAE |
| Carex scopulorum Holm |
CYPERACEAE |
| Carex stenophylla Wahlenberg ssp eleocharis (L. H. Bailey) Hultén |
CYPERACEAE |
| Carex vesicaria L. |
CYPERACEAE |
| Castilleja haydenii (A. Gray) Cockerell |
SCROPHULARIACEAE |
| Castilleja integra A. Gray in Torrey |
SCROPHULARIACEAE |
| Castilleja linariifolia Bentham in De Candolle |
SCROPHULARIACEAE |
| Castilleja occidentalis Torrey |
SCROPHULARIACEAE |
| Castilleja sulphurea Rydberg |
SCROPHULARIACEAE |
| Cerastium strictum L. {emend.} Haenke |
ALSINACEAE |
| Cercocarpus montanus Rafinesque |
ROSACEAE |
| Chaenactis alpina (A. Gray) Jones |
ASTERACEAE |
| Chamaesyce serpyllifolia (Persoon) Small |
EUPHORBIACEAE |
| Cheilanthes fendleri Hooker |
PTERIDACEAE |
| Chenopodium atrovirens Rydberg |
CHENOPODIACEAE |
| Chenopodium berlandieri Moquin |
CHENOPODIACEAE |
| Chenopodium desiccatum A. Nelson |
CHENOPODIACEAE |
| Chenopodium fremontii S. Watson |
CHENOPODIACEAE |
| Chenopodium pratericola Rydberg |
CHENOPODIACEAE |
| Chionophila jamesii Bentham in De Candolle |
SCROPHULARIACEAE |
| Chondrophylla prostrata (Haenke ex Jacquin) J. P. Anderson |
GENTIANACEAE |
| Chondrosum gracile Humboldt, Bonpland, & Kunth |
POACEAE |
| Chondrosum prostratum (Lagasca) Sweet |
POACEAE |
| Chrysothamnus greenei (A. Gray) Greene |
ASTERACEAE |
| Chrysothamnus nauseosus (Pallas ex Pursh) Britton ssp consimilis (Greene) Hall & Clements |
ASTERACEAE |
| Chrysothamnus nauseosus (Pallas ex Pursh) Britton ssp graveolens (Nuttall) Piper |
ASTERACEAE |
| Chrysothamnus viscidiflorus (Hooker) Nuttall ssp lanceolatus (Nuttall) Hall & Clements |
ASTERACEAE |
| Ciliaria austromontana (Wiegand) W. A. Weber |
SAXIFRAGACEAE |
| Cirsium canescens Nuttall |
ASTERACEAE |
| Cirsium scopulorum (Greene) Cockerell |
ASTERACEAE |
| Clematis ligusticifolia Nuttall ex Torrey & Gray |
RANUNCULACEAE |
| Clementsia rhodantha (A. Gray) Rose |
CRASSULACEAE |
| Cleome multicaulis Sessé & Moçińo ex De Candolle |
CAPPARACEAE |
| Cleome serrulata Pursh |
CAPPARACEAE |
| Comandra umbellata (L.) Nuttall ssp pallida (A. De Candolle) Piehl |
SANTALACEAE |
| Conyza canadensis (L.) Cronquist |
ASTERACEAE |
| Corispermum hyssopifolium L. |
CHENOPODIACEAE |
| Corispermum villosum Rydberg |
CHENOPODIACEAE |
| Corydalis aurea Willdenow |
FUMARIACEAE |
| Corydalis curvisiliqua Engelmann subsp. occidentalis (Engelmann ex A. Gray) W. A. Weber |
FUMARIACEAE |
| Coryphantha vivipara (Nuttall) Britton & Rose var vivipara |
CACTACEAE |
| Critesion jubatum (L.) Nevski |
POACEAE |
| Cryptantha fendleri (A. Gray) Greene |
BORAGINACEAE |
| Cycloloma atriplicifolium (Sprengel) Coulter |
CHENOPODIACEAE |
| Cymopterus acaulis (Pursh) Rafinesque |
APIACEAE |
| Cyperus aristatus Rottboel |
CYPERACEAE |
| Cystopteris fragilis (L.) Bernhardi |
DRYOPTERIDACEAE |
| Danthonia intermedia Vasey |
POACEAE |
| Danthonia parryi Scribner |
POACEAE |
| Delphinium alpestre Rydberg |
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 ramosissima Rollins |
BRASSICACEAE |
| Diplachne fascicularis (Lamarck) P. Beauvois |
POACEAE |
| Distichlis stricta (Torrey) Rydberg |
POACEAE |
| Draba aurea M. Vahl ex Hornemann |
BRASSICACEAE |
| Draba crassifolia R. Graham |
BRASSICACEAE |
| Draba nemorosa L. |
BRASSICACEAE |
| Draba smithii Gilg ex O. E. Schulz |
BRASSICACEAE |
| Draba streptobrachia Price |
BRASSICACEAE |
| Dyssodia papposa (Ventenat) A. S. Hitchcock |
ASTERACEAE |
| Echinocereus triglochidiatus Engelmann var melanacanthus (Engelmann) L. Benson |
CACTACEAE |
| Echinocereus triglochidiatus Engelmann var. triglochidiatus |
CACTACEAE |
| Echinochloa crus-galli (L.) P. Beauvois |
POACEAE |
| Echinocystis lobata (Michaux) Torrey & Gray |
CUCURBITACEAE |
| Eleocharis acicularis (L.) Roemer & Schultes |
CYPERACEAE |
| Eleocharis palustris (L.) Roemer & Schultes |
CYPERACEAE |
| Elymus canadensis L. |
POACEAE |
| Elymus elymoides (Rafinesque) Swezey |
POACEAE |
| Elymus longifolius (J. G. Smith) Gould |
POACEAE |
| Elymus scribneri (Vasey) Jones |
POACEAE |
| Elymus trachycaulus (Link) Gould |
POACEAE |
| Epilobium brachycarpum K. Presl |
ONAGRACEAE |
| Epilobium ciliatum Rafinesque |
ONAGRACEAE |
| Equisetum arvense L. |
EQUISETACEAE |
| Eragrostis pilosa (L.) P. Beauvois |
POACEAE |
| Eremogone fendleri (A. Gray) Ikonnikov |
ALSINACEAE |
| Erigeron colo-mexicanus A. Nelson |
ASTERACEAE |
| Erigeron compositus Pursh |
ASTERACEAE |
| Erigeron divergens Torrey & Gray |
ASTERACEAE |
| Erigeron flagellaris A. Gray |
ASTERACEAE |
| Erigeron formosissimus Greene |
ASTERACEAE |
| Erigeron glabellus Nuttall |
ASTERACEAE |
| Erigeron leiomerus A. Gray |
ASTERACEAE |
| Erigeron melanocephalus A. Nelson |
ASTERACEAE |
| Erigeron peregrinus (Banks ex Pursh) Greene ssp callianthemus (Greene) Cronquist |
ASTERACEAE |
| Erigeron pinnatisectus (A. Gray) A. Nelson |
ASTERACEAE |
| Erigeron simplex Greene |
ASTERACEAE |
| Erigeron subtrinervis Rydberg |
ASTERACEAE |
| Erigeron vetensis Rydberg |
ASTERACEAE |
| Eriogonum cernuum Nuttall |
POLYGONACEAE |
| Eriogonum effusum Nuttall |
POLYGONACEAE |
| Eriogonum flavum Nuttall subsp. chloranthum (Greene) S. Stokes |
POLYGONACEAE |
| Eriogonum jamesii Bentham in A. De Candolle |
POLYGONACEAE |
| Eritrichum aretioides (Chamisso) De Candolle |
BORAGINACEAE |
| Erysimum capitatum (Douglas) Greene |
BRASSICACEAE |
| Euthamia graminifolia (L.) Nuttall |
ASTERACEAE |
| Euthamia occidentalis Nuttall |
ASTERACEAE |
| Fallugia paradoxa (D. Don) Endlicher |
ROSACEAE |
| Festuca arizonica Vasey |
POACEAE |
| Festuca brachyphylla Schultes ssp coloradensis Fredriksen |
POACEAE |
| Festuca saximontana Rydberg |
POACEAE |
| Festuca thurberi Vasey in Rothrock |
POACEAE |
| Fragaria vesca L. ssp bracteata (Heller) Staudt |
ROSACEAE |
| Fragaria virginiana P. Miller ssp glauca (S. Watson) Staudt |
ROSACEAE |
| Galium septentrionale Roemer & Schultes |
RUBIACEAE |
| Gastrolychnis drummondii (Hooker) Löve & Löve |
CARYOPHYLLACEAE |
| Gaura coccinea Nuttall ex Pursh |
ONAGRACEAE |
| Gentianella acuta (Michaux) Hiitonen |
GENTIANACEAE |
| Gentianella strictiflora (Rydberg) W. A. Weber |
GENTIANACEAE |
| Gentianodes algida (Pallas) Löve & Löve |
GENTIANACEAE |
| Gentianopsis barbellata (Engelmann) Iltis |
GENTIANACEAE |
| Glaux maritima L. var angustifolia Boivin |
PRIMULACEAE |
| Glyceria grandis S. Watson in A. Gray |
POACEAE |
| Glycyrrhiza lepidota Pursh |
FABACEAE |
| Gnaphalium uliginosum L. |
ASTERACEAE |
| Gratiola neglecta Torrey |
SCROPHULARIACEAE |
| Grindelia aphanactis Rydberg |
ASTERACEAE |
| Grindelia decumbens Greene var subincisa (Greene) Steyermark |
ASTERACEAE |
| Gutierrezia sarothrae (Pursh) Britton & Rusby |
ASTERACEAE |
| Halerpestes cymbalaria (Pursh) Greene ssp saximontana (Fernald) Moldenke |
RANUNCULACEAE |
| Helianthus annuus L. |
ASTERACEAE |
| Helianthus petiolaris Nuttall |
ASTERACEAE |
| Heliomeris multiflora Nuttall var multiflora |
ASTERACEAE |
| Heliotropium curassavicum L. ssp oculatum (Heller) Thorne |
BORAGINACEAE |
| Heracleum sphondylium L. ssp montanum (Schleicher ex Gaudin) Briquet in Schinz & Thellung |
APIACEAE |
| Heterotheca pumila (Greene) Semple |
ASTERACEAE |
| Heuchera parvifolia Nuttall ex Torrey & Gray |
SAXIFRAGACEAE |
| Hierochloë hirta (Schrank) Borbas ssp arctica (J. Presl in K. Presl) G. Weimarck |
POACEAE |
| Hippochaete laevigata (A. Braun) Farwell |
EQUISETACEAE |
| Hirculus platysepalus (Trautvetter) W. A. Weber ssp crandallii (Gandoger) W. A. Weber |
SAXIFRAGACEAE |
| Hirculus serpyllifolius (Pursh) W. A. Weber ssp chrysanthus (A. Gray) W. A. Weber |
SAXIFRAGACEAE |
| Holodiscus dumosus (Nuttall ex Hooker) Heller |
ROSACEAE |
| Hymenopappus filifolius Hooker var cinereus (Rydberg) I. M. Johnston |
ASTERACEAE |
| Ipomopsis aggregata (Pursh) V. Grant ssp aggregata |
POLEMONIACEAE |
| Ipomopsis aggregata (Pursh) V. Grant ssp candida (Rydberg) V. & A. Grant |
POLEMONIACEAE |
| Ipomopsis aggregata (Pursh) V. Grant ssp collina (Greene) Wilken & Allard |
POLEMONIACEAE |
| Ipomopsis longiflora (Torrey) V. Grant |
POLEMONIACEAE |
| Iris missouriensis Nuttall |
IRIDACEAE |
| Iva axillaris Pursh |
ASTERACEAE |
| Ivesia gordonii (Hooker) Torrey & Gray |
ROSACEAE |
| Jamesia americana Torrey & Gray |
HYDRANGEACEAE |
| Juncus arcticus Willdenow ssp ater (Rydberg) Hultén |
JUNCACEAE |
| Juncus bufonius L. |
JUNCACEAE |
| Juncus interior Wiegand |
JUNCACEAE |
| Juncus mertensianus Bongard |
JUNCACEAE |
| Juncus torreyi Coville |
JUNCACEAE |
| Juniperus communis L. ssp alpina (J. E. Smith) Celakovsky |
CUPRESSACEAE |
| Kobresia myosuroides (Villars) Fiori & Paoli |
CYPERACEAE |
| Koeleria macrantha (Ledebour) Schultes |
POACEAE |
| Krascheninnikovia lanata (Pursh) Meeuse & Smit |
CHENOPODIACEAE |
| Lactuca tatarica (L.) C. A. Meyer ssp pulchella (Pursh) Stebbins |
ASTERACEAE |
| Lappula redowskii (Hornemann) Greene |
BORAGINACEAE |
| Lathyrus eucosmus Butters & St. John |
FABACEAE |
| Lemna minuscula Herter |
LEMNACEAE |
| Lemna turionifera Landolt |
LEMNACEAE |
| Lepidium alyssoides A. Gray var. alyssoides |
BRASSICACEAE |
| Lepidium ramosissimum A. Nelson |
BRASSICACEAE |
| Leptodactylon pungens (Torrey) Rydberg |
POLEMONIACEAE |
| Lesquerella montana (A. Gray) S. Watson |
BRASSICACEAE |
| Leymus ambiguus (Vasey & Scribner) D. Dewey |
POACEAE |
| Leymus triticoides (Buckley) Pilger |
POACEAE |
| 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 holmii (Greene) W. A. Weber |
ASTERACEAE |
| Lithospermum incisum Lehmann |
BORAGINACEAE |
| Lupinus argenteus Pursh |
FABACEAE |
| Lupinus kingii S. Watson |
FABACEAE |
| Lupinus pusillus Pursh ssp pusillus |
FABACEAE |
| Luzula spicata (L.) De Candolle |
JUNCACEAE |
| Lycopus asper Greene |
LAMIACEAE |
| Lygodesmia juncea (Pursh) D. Don |
ASTERACEAE |
| Machaeranthera canescens (Pursh) A. Gray |
ASTERACEAE |
| Machaeranthera parviflora A. Gray |
ASTERACEAE |
| Machaeranthera pinnatifida (Hooker) Shinners |
ASTERACEAE |
| Machaeranthera tanacetifolia (Humboldt, Bonpland, & Kunth) Nees |
ASTERACEAE |
| Maianthemum amplexicaule (Nuttall) W. A. Weber |
CONVALLARIACEAE |
| Maianthemum stellatum (L.) Link |
CONVALLARIACEAE |
| Marsilea vestita Hooker & Greville |
MARSILEACEAE |
| Medicago sativa L. |
FABACEAE |
| Melilotus albus Medicus |
FABACEAE |
| Melilotus officinale (L.) Pallas |
FABACEAE |
| Mentha arvensis L. |
LAMIACEAE |
| Mertensia ciliata (James ex Torrey) G. Don |
BORAGINACEAE |
| Mertensia lanceolata (Pursh) A. De Candolle |
BORAGINACEAE |
| Micranthes rhomboidea (Greene) Small |
SAXIFRAGACEAE |
| Mimulus glabratus Humboldt, Bonpland, & Kunth |
SCROPHULARIACEAE |
| Mimulus guttatus De Candolle |
SCROPHULARIACEAE |
| Mirabilis multiflora (Torrey) A. Gray |
NYCTAGINACEAE |
| Monarda pectinata Nuttall |
LAMIACEAE |
| Moneses uniflora (L.) A. Gray |
PYROLACEAE |
| Monroa squarrosa (Nuttall) Torrey |
POACEAE |
| Muhlenbergia asperifolia (Nees & Meyen ex Trinius) Parodi |
POACEAE |
| Muhlenbergia minutissima (Steudel) Swallen |
POACEAE |
| Muhlenbergia pungens Thurber ex A. Gray |
POACEAE |
| Muhlenbergia richardsonis (Trinius) Rydberg |
POACEAE |
| Noccaea montana (L.) F. K. Meyer |
BRASSICACEAE |
| Nuttallia multiflora (Nuttall) Greene |
LOASACEAE |
| Oenothera albicaulis Pursh |
ONAGRACEAE |
| 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 pallida Lindley ssp runcinata (Engelmann) Munz & Klein |
ONAGRACEAE |
| Oenothera villosa Thunberg ssp strigosa (Rydberg) Dietrich & Raven |
ONAGRACEAE |
| Oligosporus dracunculus (L.) Poljakov ssp dracunculinus (S. Watson) W. A. Weber |
ASTERACEAE |
| Oligosporus groenlandicus (Hornemann) Löve & Löve |
ASTERACEAE |
| Opuntia polyacantha Haworth var. polyacantha |
CACTACEAE |
| Oreobatus deliciosus (James ex Torrey) Rydberg |
ROSACEAE |
| Oreocarya pustulosa Rydberg |
BORAGINACEAE |
| Oreocarya suffruticosa (Torrey) Greene |
BORAGINACEAE |
| Oreoxis alpina (A. Gray) Coulter & Rose |
APIACEAE |
| Oreoxis bakeri Coulter & Rose |
APIACEAE |
| Orthocarpus luteus Nuttall |
SCROPHULARIACEAE |
| Oxybaphus linearis (Pursh) B. L. Robinson |
NYCTAGINACEAE |
| Oxyria digyna (L.) J. Hill |
POLYGONACEAE |
| Oxytropis lambertii Pursh |
FABACEAE |
| Oxytropis monticola A. Gray |
FABACEAE |
| Oxytropis parryi A. Gray |
FABACEAE |
| Oxytropis sericea Nuttall |
FABACEAE |
| Oxytropis splendens Douglas ex Hooker |
FABACEAE |
| Packera crocata (Rydberg) Weber & Löve |
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 |
| Pascopyrum smithii (Rydberg) Löve |
POACEAE |
| Pedicularis groenlandica Retzius |
SCROPHULARIACEAE |
| Pedicularis parryi A. Gray |
SCROPHULARIACEAE |
| Penstemon angustifolius Nuttall ex Pursh |
SCROPHULARIACEAE |
| Penstemon angustifolius Nuttall ex Pursh ssp caudatus (Heller) Keck |
SCROPHULARIACEAE |
| Penstemon barbatus (Cavanilles) Roth |
SCROPHULARIACEAE |
| Penstemon barbatus (Cavanilles) Roth ssp torreyi (Bentham in De Candolle) Keck |
SCROPHULARIACEAE |
| Penstemon caespitosus Nuttall |
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 |
| Persicaria amphibia (L.) S. Gray |
POLYGONACEAE |
| Persicaria coccinea (Mühlenberg ex Willdenow) Greene |
POLYGONACEAE |
| Persicaria maculata (L.) S. Gray |
POLYGONACEAE |
| Phacelia alba Rydberg |
HYDROPHYLLACEAE |
| Phlox condensata (A. Gray) E. Nelson |
POLEMONIACEAE |
| 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 flexilis James |
PINACEAE |
| Pinus ponderosa Douglas ex P. & C. Lawson ssp scopulorum (S. Watson) W. A. Weber |
PINACEAE |
| Plagiobothrys scouleri (Hooker & Arnott) I. M. Johnston ssp penicillata (Greene) Löve |
BORAGINACEAE |
| Plantago major L. |
PLANTAGINACEAE |
| Poa alpina L. |
POACEAE |
| Poa fendleriana (Steudel) Vasey |
POACEAE |
| Poa glauca M. Vahl ssp rupicola (Nash) W. A. Weber |
POACEAE |
| Poa juncifolia Scribner |
POACEAE |
| Poa lettermanii Vasey |
POACEAE |
| Poa nemoralis L. ssp interior (Rydberg) W. A. Weber |
POACEAE |
| Poa palustris L. |
POACEAE |
| Poa pratensis L. |
POACEAE |
| Polemonium brandegei (A. Gray) Greene |
POLEMONIACEAE |
| Polemonium confertum A. Gray |
POLEMONIACEAE |
| Polemonium foliosissimum (A. Gray) A. Gray |
POLEMONIACEAE |
| Polemonium pulcherrimum Hooker ssp delicatum (Rydberg) Brand |
POLEMONIACEAE |
| Polygonum arenastrum Boreau |
POLYGONACEAE |
| Polygonum argyrocoleon Steudel ex Kuntze |
POLYGONACEAE |
| Populus acuminata Rydberg |
SALICACEAE |
| Populus angustifolia James |
SALICACEAE |
| Populus tremuloides Michaux |
SALICACEAE |
| Potamogeton foliosus Rafinesque |
POTAMOGETONACEAE |
| Potamogeton natans L. |
POTAMOGETONACEAE |
| Potamogeton nodosus Poiret in Lamarck |
POTAMOGETONACEAE |
| Potamogeton pusillus L. |
POTAMOGETONACEAE |
| Potentilla concinna Richardson var. concinna |
ROSACEAE |
| Potentilla diversifolia Lehmann |
ROSACEAE |
| Potentilla hippiana Lehmann |
ROSACEAE |
| Potentilla norvegica L. |
ROSACEAE |
| Potentilla pensylvanica L. |
ROSACEAE |
| Potentilla plattensis Nuttall ex Torrey & Gray |
ROSACEAE |
| Potentilla rivalis Nuttall ex Torrey & Gray |
ROSACEAE |
| Potentilla subjuga Rydberg |
ROSACEAE |
| Potentilla supina L. ssp paradoxa (Nuttall ex Torrey & Gray) Sojak |
ROSACEAE |
| Primula angustifolia Torrey |
PRIMULACEAE |
| Pseudotsuga menziesii (Mirbel) Franco |
PINACEAE |
| Psilochenia runcinata (James ex Torrey) Löve & Löve |
ASTERACEAE |
| Psoralidium lanceolatum (Pursh) Rydberg |
FABACEAE |
| Psychrophila leptosepala (De Candolle) W. A. Weber |
HELLEBORACEAE |
| Pterogonum alatum (Torrey) Gross |
POLYGONACEAE |
| Puccinellia airoides Watson & Coulter |
POACEAE |
| Pyrrocoma lanceolata (Hooker) Greene |
ASTERACEAE |
| Ranunculus inamoenus Greene |
RANUNCULACEAE |
| Ranunculus pensylvanicus L. f. |
RANUNCULACEAE |
| Redfieldia flexuosa (Thurber ex A. Gray) Vasey |
POACEAE |
| 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 |
| Ribes leptanthum A. Gray |
GROSSULARIACEAE |
| Ribes montigenum McClatchie |
GROSSULARIACEAE |
| Rorippa palustris (L.) Besser |
BRASSICACEAE |
| Rorippa sinuata (Nuttall in Torrey & Gray) A. S. Hitchcock |
BRASSICACEAE |
| Rorippa teres (Michaux) Stuckey |
BRASSICACEAE |
| Rosa sayi Schweinitz |
ROSACEAE |
| Rosa woodsii Lindley |
ROSACEAE |
| Rubus idaeus L. ssp melanolasius (Dieck) Focke |
ROSACEAE |
| Rudbeckia ampla A. Nelson |
ASTERACEAE |
| Rumex maritimus L. ssp fueginus (Philippi) Hultén |
POLYGONACEAE |
| Rumex triangulivalvis (Danser) Rechinger f. |
POLYGONACEAE |
| Rydbergia brandegei (T. C. Porter) Rydberg |
ASTERACEAE |
| Sabina scopulorum (Sargent) Rydberg |
CUPRESSACEAE |
| Sagittaria cuneata Sheldon |
ALISMATACEAE |
| Salix amygdaloides Andersson |
SALICACEAE |
| Salix bebbiana Sargent |
SALICACEAE |
| Salix brachycarpa Nuttall |
SALICACEAE |
| Salix drummondiana Barratt |
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 monticola Bebb in Coulter |
SALICACEAE |
| Salix reticulata L. ssp nivalis (Hooker) Löve et al. |
SALICACEAE |
| Salsola australis R. Brown |
CHENOPODIACEAE |
| Sambucus microbotrys Rydberg |
CAPRIFOLIACEAE |
| Sarcobatus vermiculatus (Hooker) Torrey |
CHENOPODIACEAE |
| Saxifraga cernua L. |
SAXIFRAGACEAE |
| Saxifraga hyperborea R. Brown ssp debilis (Engelmann ex A. Gray) Löve et al. |
SAXIFRAGACEAE |
| Schkuhria multiflora Hooker & Arnott |
ASTERACEAE |
| Schoenocrambe linearifolia (A. Gray) Rollins |
BRASSICACEAE |
| Schoenoplectus acutus (Mühlenberg) Löve & Löve |
CYPERACEAE |
| Schoenoplectus pungens (M. Vahl) Palla |
CYPERACEAE |
| Schoenoplectus validus (Vahl) Löve & Löve |
CYPERACEAE |
| Scrophularia lanceolata Pursh |
SCROPHULARIACEAE |
| Selaginella densa Rydberg |
SELAGINELLACEAE |
| Selaginella standleyi Maxon |
SELAGINELLACEAE |
| Selaginella weatherbiana Tryon |
SELAGINELLACEAE |
| Senecio eremophilus Richardson ssp kingii (Rydberg) Douglas & R.-Douglas |
ASTERACEAE |
| Senecio fremontii Torrey & Gray ssp blitoides (Greene) W. A. Weber |
ASTERACEAE |
| Senecio multicapitatus Greenman in Rydberg |
ASTERACEAE |
| Sesuvium verrucosum Rafinesque |
AIZOACEAE |
| Sibbaldia procumbens L. |
ROSACEAE |
| Sidalcea candida A. Gray |
MALVACEAE |
| Sium suave Walter |
APIACEAE |
| Solanum triflorum Nuttall |
SOLANACEAE |
| Solidago multiradiata Aiton |
ASTERACEAE |
| Solidago simplex Humboldt, Bonpland & Kunth var. nana (A. Gray) G.S. Ringius |
ASTERACEAE |
| Spartina gracilis Trinius |
POACEAE |
| Sphaeralcea coccinea (Pursh) Rydberg |
MALVACEAE |
| Sphaerophysa salsula (Pallas) De Candolle |
FABACEAE |
| Sporobolus airoides (Torrey) Torrey |
POACEAE |
| Sporobolus contractus A. S. Hitchcock |
POACEAE |
| Sporobolus cryptandrus (Torrey) A. Gray |
POACEAE |
| Stachys palustris L. ssp pilosa (Nuttall) Epling |
LAMIACEAE |
| Stellaria longifolia Mühlenberg ex Willdenow |
ALSINACEAE |
| Stellaria longipes Goldie |
ALSINACEAE |
| Suaeda calceoliformis (Hooker) Moquin |
CHENOPODIACEAE |
| Suaeda nigra (Rafinesque) Macbride |
CHENOPODIACEAE |
| Swertia perennis L. |
GENTIANACEAE |
| Swida sericea (L.) Holub |
CORNACEAE |
| Symphoricarpos rotundifolius A. Gray |
CAPRIFOLIACEAE |
| Taraxacum officinale G. H. Weber ex Wiggers |
ASTERACEAE |
| Taraxacum ovinum Greene |
ASTERACEAE |
| Taraxacum scopulorum (A. Gray) Rydberg |
ASTERACEAE |
| Teloxys graveolens (Willdenow) W. A. Weber |
CHENOPODIACEAE |
| Tetraneuris acaulis (Pursh) Greene |
ASTERACEAE |
| Tetraneuris brevifolia Greene |
ASTERACEAE |
| Thalictrum alpinum L. |
THALICTRACEAE |
| Thalictrum fendleri Engelmann ex A. Gray |
THALICTRACEAE |
| Thelesperma filifolium (Hooker) A. Gray var intermedium (Rydberg) Shinners |
ASTERACEAE |
| Thermopsis divaricarpa A. Nelson |
FABACEAE |
| Thermopsis montana Nuttall ex Torrey & Gray |
FABACEAE |
| Tithymalus brachyceras (Engelmann) Small |
EUPHORBIACEAE |
| Tonestus pygmaeus (Torrey & Gray) A. Nelson |
ASTERACEAE |
| Townsendia exscapa (Richardson) T. C. Porter |
ASTERACEAE |
| Trifolium dasyphyllum Torrey & Gray |
FABACEAE |
| Trifolium hybridum L. |
FABACEAE |
| Trifolium nanum Torrey |
FABACEAE |
| Trifolium parryi A. Gray |
FABACEAE |
| Trifolium repens L. |
FABACEAE |
| Triglochin maritima L. |
JUNCAGINACEAE |
| Trimorpha lonchophylla (Hooker) Nesom |
ASTERACEAE |
| Tripterocalyx micranthus (Torrey) Hooker |
NYCTAGINACEAE |
| Trisetum spicatum (L.) Richter ssp congdonii (Scribner & Merrill) Hultén |
POACEAE |
| Tryphane rubella (Wahlenberg) Reichenbach |
ALSINACEAE |
| Typha latifolia L. |
TYPHACEAE |
| Valeriana arizonica A. Gray |
VALERIANACEAE |
| Valeriana edulis Nuttall |
VALERIANACEAE |
| Verbascum thapsus L. |
SCROPHULARIACEAE |
| Verbena bracteata Lagasca & Rodriguez |
VERBENACEAE |
| Veronica nutans Bongard |
SCROPHULARIACEAE |
| Vicia americana Mühlenberg |
FABACEAE |
| Vicia angustifolia L. |
FABACEAE |
| Viola biflora L. |
VIOLACEAE |
| Viola labradorica Schrank |
VIOLACEAE |
| Viola scopulorum (A. Gray) Greene |
VIOLACEAE |
| Virgulaster ascendens (Lindley ex Hooker) Semple |
ASTERACEAE |
| Virgulus falcatus (Lindley) Reveal & Keener |
ASTERACEAE |
| Woodsia oregana D.C. Eaton ssp cathcartiana (Robbinson) Windham |
DRYOPTERIDACEAE |
| Ximenesia encelioides Cavanilles |
ASTERACEAE |
