412 Records
| Citation | Family Name |
| Abies bifolia A. Murray |
PINACEAE |
| Abies concolor (Gordon & Glendower) Lindley ex Hildebrand |
PINACEAE |
| Abronia fragrans Nuttall ex Hooker |
NYCTAGINACEAE |
| Acer glabrum Torrey |
ACERACEAE |
| Acer saccharinum L. |
ACERACEAE |
| Achnatherum hymenoides (Roemer & Schultes) Barkworth |
POACEAE |
| Achnatherum robustum (Vasey) Barkworth |
POACEAE |
| Acrolasia albicaulis (Douglas ex Hooker) Rydberg |
LOASACEAE |
| Adenolinum lewisii (Pursh) Löve & Löve |
LINACEAE |
| Adenolinum pratense (Norton) W. A. Weber |
LINACEAE |
| Agastache foeniculum Kuntze |
LAMIACEAE |
| Agoseris glauca (Pursh) Rafinesque var. agrestis |
ASTERACEAE |
| Agropyron desertorum Fischer ex Link |
POACEAE |
| Alisma triviale Pursh |
ALISMATACEAE |
| Allium geyeri S. Watson |
ALLIACEAE |
| Allium textile Nelson & Macbride |
ALLIACEAE |
| Alnus incana (L.) Moench ssp tenuifolia (Nuttall) Breitung |
BETULACEAE |
| Alopecurus aequalis Sobolewski |
POACEAE |
| Alyssum parviflorum M. Bieberstein var. micranthum (C. A. Meyer in Fisher & Meyer) Dorn |
BRASSICACEAE |
| Ambrosia linearis (Rydberg) Payne |
ASTERACEAE |
| Ambrosia psilostachya De Candolle var coronopifolia (Torrey & Gray) Farwell |
ASTERACEAE |
| Amelanchier alnifolia Nuttall |
ROSACEAE |
| Amerosedum lanceolatum (Torrey) Löve & Löve |
CRASSULACEAE |
| Anchusa azurea P. Miller |
BORAGINACEAE |
| Antennaria parvifolia Nuttall |
ASTERACEAE |
| Antennaria pulcherrima (Hooker) Greene ssp anaphaloides (Rydberg) W. A. Weber |
ASTERACEAE |
| Argemone hispida A. Gray |
PAPAVERACEAE |
| Aristida purpurea Nuttall |
POACEAE |
| Armoracia rusticana Gaertner, Meyer, & Scherbius |
BRASSICACEAE |
| Arnica cordifolia Hooker |
ASTERACEAE |
| Artemisia bigelovii A. Gray |
ASTERACEAE |
| Artemisia frigida Willdenow |
ASTERACEAE |
| Artemisia ludoviciana Nuttall |
ASTERACEAE |
| Artemisia ludoviciana Nuttall ssp ludoviciana |
ASTERACEAE |
| Artemisia scopulorum A. Gray |
ASTERACEAE |
| Asclepias asperula (Decaisne) Woodson |
ASCLEPIADACEAE |
| Asclepias asperula (Decaisne) Woodson ssp asperula |
ASCLEPIADACEAE |
| Asclepias engelmanniana Woodson |
ASCLEPIADACEAE |
| Asclepias incarnata L. |
ASCLEPIADACEAE |
| Asclepias latifolia (Torrey) Rafinesque |
ASCLEPIADACEAE |
| Asclepias pumila (A. Gray) Vail |
ASCLEPIADACEAE |
| Asclepias tuberosa L. ssp terminalis Woodson |
ASCLEPIADACEAE |
| Asclepias uncialis Greene |
ASCLEPIADACEAE |
| Asclepias viridiflora Rafinesque |
ASCLEPIADACEAE |
| Asplenium septentrionale (L.) Hoffman |
ASPLENIACEAE |
| Aster laevis L. |
ASTERACEAE |
| Aster laevis L. var geyeri A. Gray |
ASTERACEAE |
| Astragalus bisulcatus (Hooker) A. Gray |
FABACEAE |
| Astragalus flexuosus (Hooker) G. Don |
FABACEAE |
| Astragalus gracilis Nuttall |
FABACEAE |
| Astragalus hallii A. Gray |
FABACEAE |
| Astragalus missouriensis Nuttall |
FABACEAE |
| Astragalus mollissimus Torrey |
FABACEAE |
| Astragalus pectinatus (Hooker) Douglas in Hooker |
FABACEAE |
| Astragalus racemosus Pursh var longisetus Jones |
FABACEAE |
| Atragene columbiana Nuttall |
RANUNCULACEAE |
| Atriplex argentea Nuttall |
CHENOPODIACEAE |
| Atriplex canescens (Pursh) Nuttall |
CHENOPODIACEAE |
| Atriplex confertifolia (Torrey & Frémont) S. Watson |
CHENOPODIACEAE |
| Atriplex powellii S. Watson |
CHENOPODIACEAE |
| Atriplex saccaria S. Watson |
CHENOPODIACEAE |
| Baccharis salicina Torrey & Gray |
ASTERACEAE |
| Besseya plantaginea (Bentham in De Candolle) Rydberg |
SCROPHULARIACEAE |
| Bidens tenuisecta A. Gray |
ASTERACEAE |
| Bolophyta tetraneuris (Barneby) W. A. Weber |
ASTERACEAE |
| Bothriochloa laguroides (De Candolle) Herter ssp torreyana (Steudel) Allred & Gould |
POACEAE |
| Brickellia rosmarinifolia (Ventenat) W. A. Weber ssp chlorolepis (Wooton & Standley) W. A. Weber |
ASTERACEAE |
| Buchloë dactyloides (Nuttall) Engelmann |
POACEAE |
| Caesalpinia jamesii (Torrey & Gray) Fisher |
FABACEAE |
| Calochortus gunnisonii S. Watson |
CALOCHORTACEAE |
| Calylophus lavandulifolius (Torrey & Gray) Raven |
ONAGRACEAE |
| Calystegia sepium (L.) R. Brown ssp angulata Brummitt |
CONVOLVULACEAE |
| Camelina microcarpa Andrzejowski ex De Candolle |
BRASSICACEAE |
| Capsella bursa-pastoris (L.) Medicus |
BRASSICACEAE |
| Caragana arborescens Lamarck |
FABACEAE |
| Cardaria chalepensis (L.) Handel-Mazzetti |
BRASSICACEAE |
| Carex canescens L. |
CYPERACEAE |
| Carex microptera Mackenzie |
CYPERACEAE |
| Carex occidentalis L. H. Bailey |
CYPERACEAE |
| Castilleja integra A. Gray in Torrey |
SCROPHULARIACEAE |
| Ceanothus fendleri A. Gray |
RHAMNACEAE |
| Celtis reticulata Torrey |
ULMACEAE |
| Cerastium nutans Rafinesque var brachypodum Engelmann ex A. Gray |
ALSINACEAE |
| Cercocarpus montanus Rafinesque |
ROSACEAE |
| Chaetopappa ericoides (A. Gray) Nesom |
ASTERACEAE |
| Chamaesaracha coronopus (Dunal) A. Gray |
SOLANACEAE |
| Chamaesyce stictospora (Engelmann) Small |
EUPHORBIACEAE |
| Cheilanthes féei T. Moore |
PTERIDACEAE |
| Cheilanthes fendleri Hooker |
PTERIDACEAE |
| Chenopodium fremontii S. Watson |
CHENOPODIACEAE |
| Chenopodium leptophyllum (Nuttall ex Moquin) S. Watson |
CHENOPODIACEAE |
| Chimaphila umbellata (L.) W. Barton ssp occidentalis (Rydberg) Hultén |
PYROLACEAE |
| Chlorocrepis fendleri (Schultz-Bipontinus) W. A. Weber |
ASTERACEAE |
| Chondrosum gracile Humboldt, Bonpland, & Kunth |
POACEAE |
| Chorispora tenella (Pallas) De Candolle |
BRASSICACEAE |
| Circaea alpina L. |
ONAGRACEAE |
| Cirsium ochrocentrum A. Gray |
ASTERACEAE |
| Cladothrix lanuginosa (Nuttall ex Moquin) Bentham & Hooker |
AMARANTHACEAE |
| Collinsia parviflora Douglas in Lindley |
SCROPHULARIACEAE |
| Comandra umbellata (L.) Nuttall ssp pallida (A. De Candolle) Piehl |
SANTALACEAE |
| Conium maculatum L. |
APIACEAE |
| Convolvulus arvensis L. |
CONVOLVULACEAE |
| Conyza canadensis (L.) Cronquist |
ASTERACEAE |
| Conyza coulteri A. Gray |
ASTERACEAE |
| Corallorhiza maculata Rafinesque |
ORCHIDACEAE |
| Corallorhiza wisteriana Conrad |
ORCHIDACEAE |
| Coriflora scottii (T. C. Porter in Porter & Coulter) W. A. Weber |
RANUNCULACEAE |
| Corydalis aurea Willdenow |
FUMARIACEAE |
| Coryphantha vivipara (Nuttall) Britton & Rose var vivipara |
CACTACEAE |
| Crataegus chrysocarpa Ashe |
ROSACEAE |
| Crataegus erythropoda Ashe |
ROSACEAE |
| Crataegus macracantha Loddiges var occidentalis (Britton) Eggleston |
ROSACEAE |
| Critesion jubatum (L.) Nevski |
POACEAE |
| Critesion pusillum (Nuttall) Löve |
POACEAE |
| Croton texensis (Klotsch) Müller-Argoviensis in De Candolle |
EUPHORBIACEAE |
| Cryptantha crassisepala (Torrey & Gray) Greene |
BORAGINACEAE |
| Cryptantha minima Rydberg |
BORAGINACEAE |
| Cryptogramma acrostichoides R. Brown in Richardson |
PTERIDACEAE |
| Cucurbita foetidissima Humboldt, Bonpland, & Kunth |
CUCURBITACEAE |
| Cymopterus montanus Torrey & Gray |
APIACEAE |
| Cynoglossum officinale L. |
BORAGINACEAE |
| Cyperus aristatus Rottboel |
CYPERACEAE |
| Cystopteris fragilis (L.) Bernhardi |
DRYOPTERIDACEAE |
| Dactylis glomerata L. |
POACEAE |
| Dalea jamesii (Torrey) Torrey & Gray |
FABACEAE |
| Dalea nana Torrey var nana |
FABACEAE |
| Dalea purpurea Ventenat |
FABACEAE |
| Danthonia parryi Scribner |
POACEAE |
| Delphinium barbeyi (Huth) Huth |
HELLEBORACEAE |
| Delphinium carolinianum Walter ssp virescens (Nuttall) R. Brooks |
HELLEBORACEAE |
| Delphinium nuttallianum Pritzel ex Walpers |
HELLEBORACEAE |
| Descurainia sophia (L.) Webb ex Prantl |
BRASSICACEAE |
| Dipsacus fullonum L. |
DIPSACACEAE |
| Distichlis stricta (Torrey) Rydberg |
POACEAE |
| Dracocephalum parviflorum Nuttall |
LAMIACEAE |
| Drymocallis fissa (Nuttall) Rydberg |
ROSACEAE |
| Dyssodia papposa (Ventenat) A. S. Hitchcock |
ASTERACEAE |
| Echinocereus reichenbachii (Terschek) Haage var perbellus (Britton & Rose) L. Benson |
CACTACEAE |
| Echinocereus triglochidiatus Engelmann |
CACTACEAE |
| Echinocereus triglochidiatus Engelmann var melanacanthus (Engelmann) L. Benson |
CACTACEAE |
| Echinocereus viridiflorus Engelmann |
CACTACEAE |
| Echinocystis lobata (Michaux) Torrey & Gray |
CUCURBITACEAE |
| Eleocharis acicularis (L.) Roemer & Schultes |
CYPERACEAE |
| Eleocharis palustris (L.) Roemer & Schultes |
CYPERACEAE |
| Elymus elymoides (Rafinesque) Swezey |
POACEAE |
| Equisetum arvense L. |
EQUISETACEAE |
| Eremogone hookeri (Nuttall ex Torrey & Gray) W. A. Weber |
ALSINACEAE |
| Eremogone hookeri (Nuttall ex Torrey & Gray) W. A. Weber ssp hookeri |
ALSINACEAE |
| Eremogone hookeri (Nuttall ex Torrey & Gray) W. A. Weber ssp pinetorum (A. Nelson) W. A. Weber |
ALSINACEAE |
| Erigeron divergens Torrey & Gray |
ASTERACEAE |
| Erigeron flagellaris A. Gray |
ASTERACEAE |
| Erigeron pumilus Nuttall |
ASTERACEAE |
| Eriogonum fendlerianum (Bentham in De Candolle) Small |
POLYGONACEAE |
| Eriogonum gordonii Bentham |
POLYGONACEAE |
| Eriogonum jamesii Bentham in A. De Candolle |
POLYGONACEAE |
| Eriogonum lachnogynum Torrey ex Bentham in A. De Candolle |
POLYGONACEAE |
| Eriogonum tenellum Torrey |
POLYGONACEAE |
| Erioneuron pilosum (Buckley) Nash |
POACEAE |
| Erysimum asperum (Nuttall) De Candolle |
BRASSICACEAE |
| Erysimum capitatum (Douglas) Greene |
BRASSICACEAE |
| Fallugia paradoxa (D. Don) Endlicher |
ROSACEAE |
| Forsellesia planitierum Ensign |
CROSSOSOMATACEAE |
| Fragaria vesca L. ssp bracteata (Heller) Staudt |
ROSACEAE |
| Frankenia jamesii Torrey ex A. Gray |
FRANKENIACEAE |
| Frasera speciosa Douglas ex Grisebach |
GENTIANACEAE |
| Gaillardia pinnatifida Torrey |
ASTERACEAE |
| Galinsoga parviflora Cavanilles |
ASTERACEAE |
| Galium pilosum Aiton |
RUBIACEAE |
| Galium septentrionale Roemer & Schultes |
RUBIACEAE |
| Gaura coccinea Nuttall ex Pursh |
ONAGRACEAE |
| Gentianodes algida (Pallas) Löve & Löve |
GENTIANACEAE |
| Geranium caespitosum James ex Torrey |
GERANIACEAE |
| Gilia ophthalmoides Brand |
POLEMONIACEAE |
| Glandularia bipinnatifida (Nuttall) Nuttall |
VERBENACEAE |
| Glycyrrhiza lepidota Pursh |
FABACEAE |
| Goodyera oblongifolia Rafinesque |
ORCHIDACEAE |
| Grammica indecora (Choisy) W. A. Weber var neuropetala (Engelmann) W. A. Weber |
CUSCUTACEAE |
| Grindelia inornata Greene |
ASTERACEAE |
| Grindelia revoluta Steyermark |
ASTERACEAE |
| Grindelia squarrosa (Pursh) Dunal |
ASTERACEAE |
| Gutierrezia sarothrae (Pursh) Britton & Rusby |
ASTERACEAE |
| Halerpestes cymbalaria (Pursh) Greene ssp saximontana (Fernald) Moldenke |
RANUNCULACEAE |
| Halogeton glomeratus (Bieberstein) C. A. Meyer |
CHENOPODIACEAE |
| Hecatonia scelerata (L.) Fourreau |
RANUNCULACEAE |
| Hedeoma drummondii Bentham |
LAMIACEAE |
| Hedysarum boreale Nuttall |
FABACEAE |
| Helianthus nuttallii Torrey & Gray |
ASTERACEAE |
| Helianthus rigidus (Cassini) Desfontaines ssp subrhomboideus (Rydberg) Heiser |
ASTERACEAE |
| Heracleum sphondylium L. ssp montanum (Schleicher ex Gaudin) Briquet in Schinz & Thellung |
APIACEAE |
| Hesperostipa comata (Trinius & Ruprecht) Barkworth |
POACEAE |
| Hesperostipa neomexicana (Thurber) Barkworth |
POACEAE |
| Heuchera parvifolia Nuttall ex Torrey & Gray |
SAXIFRAGACEAE |
| Hilaria jamesii (Torrey) Bentham |
POACEAE |
| Hippochaete laevigata (A. Braun) Farwell |
EQUISETACEAE |
| Hoffmanseggia drepanocarpa A. Gray |
FABACEAE |
| Holodiscus dumosus (Nuttall ex Hooker) Heller |
ROSACEAE |
| Humulus lupulus L. ssp americanus (Nuttall) Löve & Löve |
CANNABACEAE |
| Hybanthus verticillatus (Ortega) Baillon |
VIOLACEAE |
| Hydrophyllum fendleri (A. Gray) Heller |
HYDROPHYLLACEAE |
| Hymenopappus filifolius Hooker var cinereus (Rydberg) I. M. Johnston |
ASTERACEAE |
| Hymenopappus tenuifolius Pursh |
ASTERACEAE |
| Impatiens capensis Meerburgh |
BALSAMINACEAE |
| Ipomopsis laxiflora (Coulter) V. Grant |
POLEMONIACEAE |
| Ipomopsis pumila (Nuttall) V. Grant |
POLEMONIACEAE |
| Ipomopsis spicata (Nuttall) V. Grant |
POLEMONIACEAE |
| Iva axillaris Pursh |
ASTERACEAE |
| Juncus mertensianus Bongard |
JUNCACEAE |
| Juniperus communis L. ssp alpina (J. E. Smith) Celakovsky |
CUPRESSACEAE |
| Kallstroemia parviflora Norton |
ZYGOPHYLLACEAE |
| Koeleria macrantha (Ledebour) Schultes |
POACEAE |
| Krascheninnikovia lanata (Pursh) Meeuse & Smit |
CHENOPODIACEAE |
| Lappula redowskii (Hornemann) Greene |
BORAGINACEAE |
| Lathyrus leucanthus Rydberg |
FABACEAE |
| Leptodactylon pungens (Torrey) Rydberg |
POLEMONIACEAE |
| Lesquerella calcicola Rollins |
BRASSICACEAE |
| Lesquerella fendleri (A. Gray) S. Watson |
BRASSICACEAE |
| Lesquerella ovalifolia Rydberg |
BRASSICACEAE |
| Liatris punctata Hooker |
ASTERACEAE |
| Lithospermum incisum Lehmann |
BORAGINACEAE |
| Lithospermum multiflorum Torrey ex A. Gray |
BORAGINACEAE |
| Lobelia cardinalis L. ssp graminea (Lamarck) McVaugh |
CAMPANULACEAE |
| Lobelia siphilitica L. var ludoviciana A. De Candolle |
CAMPANULACEAE |
| Lupinus argenteus Pursh |
FABACEAE |
| Lupinus parviflorus Nuttall |
FABACEAE |
| Lupinus pusillus Pursh |
FABACEAE |
| Lycurus setosus (Nuttall) C. Reeder |
POACEAE |
| Lygodesmia juncea (Pursh) D. Don |
ASTERACEAE |
| Machaeranthera pinnatifida (Hooker) Shinners |
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 |
| Malus domestica Borkhausen |
ROSACEAE |
| Melampodium leucanthum Torrey & Gray |
ASTERACEAE |
| Menodora scabra (Engelmann) A. Gray |
OLEACEAE |
| Mentzelia oligosperma Nuttall ex Sims |
LOASACEAE |
| Mertensia ciliata (James ex Torrey) G. Don |
BORAGINACEAE |
| Mertensia franciscana Heller |
BORAGINACEAE |
| Mesynium puberulum (Engelmann in A. Gray) W. A. Weber |
LINACEAE |
| Mirabilis multiflora (Torrey) A. Gray |
NYCTAGINACEAE |
| Muhlenbergia arenacea (Buckley) A. S. Hitchcock |
POACEAE |
| Muhlenbergia filiculmis Vasey |
POACEAE |
| Muhlenbergia racemosa (Michaux) Britton, Sterns, & Poggenberg |
POACEAE |
| Muhlenbergia torreyi (Kunth) A. S. Hitchcock ex Bush |
POACEAE |
| Nasturtium officinale R. Brown |
BRASSICACEAE |
| Negundo aceroides (L.) Moench |
ACERACEAE |
| Nuttallia chrysantha (Engelmann ex Brandegee) Greene |
LOASACEAE |
| Nuttallia decapetala (Pursh ex Sims) Greene |
LOASACEAE |
| Nuttallia multiflora (Nuttall) Greene |
LOASACEAE |
| Nuttallia nuda (Pursh) Greene |
LOASACEAE |
| Oenothera albicaulis Pursh |
ONAGRACEAE |
| Oenothera coronopifolia Torrey & Gray |
ONAGRACEAE |
| Oenothera harringtonii W. L. Wagner et al in W. L. Wagner |
ONAGRACEAE |
| Onopordum tauricum Willdenow |
ASTERACEAE |
| Opuntia macrorhiza Engelmann |
CACTACEAE |
| Opuntia polyacantha Haworth var. polyacantha |
CACTACEAE |
| Oreobatus deliciosus (James ex Torrey) Rydberg |
ROSACEAE |
| Oreocarya suffruticosa (Torrey) Greene |
BORAGINACEAE |
| Oreocarya thyrsiflora Greene |
BORAGINACEAE |
| Oreoxis bakeri Coulter & Rose |
APIACEAE |
| Osmorhiza longistylis (Torrey) De Candolle |
APIACEAE |
| Oxalis dillenii Jacquin |
OXALIDACEAE |
| Oxybaphus rotundifolius (Greene) Standley |
NYCTAGINACEAE |
| Oönopsis foliosa (A. Gray) Greene var foliosa |
ASTERACEAE |
| Oönopsis puebloensis Brown & Evans |
ASTERACEAE |
| Packera fendleri (A. Gray) Weber & Löve |
ASTERACEAE |
| Packera neomexicana (A. Gray) Weber & Löve |
ASTERACEAE |
| Packera tridenticulata (Rydberg) Weber & Löve |
ASTERACEAE |
| Padus virginiana (L.) P. Miller ssp melanocarpa (A. Nelson) W. A. Weber |
ROSACEAE |
| Panicum capillare L. |
POACEAE |
| Paronychia jamesii Torrey & Gray |
ALSINACEAE |
| Paronychia sessiliflora Nuttall |
ALSINACEAE |
| Pascopyrum smithii (Rydberg) Löve |
POACEAE |
| Pectis angustifolia Torrey |
ASTERACEAE |
| Penstemon angustifolius Nuttall ex Pursh |
SCROPHULARIACEAE |
| Penstemon angustifolius Nuttall ex Pursh ssp caudatus (Heller) Keck |
SCROPHULARIACEAE |
| Penstemon auriberbis Pennell |
SCROPHULARIACEAE |
| Penstemon glaber Pursh |
SCROPHULARIACEAE |
| Penstemon gracilis Nuttall |
SCROPHULARIACEAE |
| Penstemon versicolor Pennell |
SCROPHULARIACEAE |
| Penstemon virens Pennell ex Rydberg |
SCROPHULARIACEAE |
| Phleum commutatum Gaudin |
POACEAE |
| Phlox condensata (A. Gray) E. Nelson |
POLEMONIACEAE |
| Phlox longifolia Nuttall |
POLEMONIACEAE |
| Phyla cuneifolia (Torrey) Greene |
VERBENACEAE |
| Physocarpus monogynus (Torrey) Coulter |
ROSACEAE |
| Physocarpus opulifolius (L.) Maximovicz |
ROSACEAE |
| Picradeniopsis oppositifolia (Nuttall) Rydberg |
ASTERACEAE |
| Pinus edulis Engelmann |
PINACEAE |
| Pinus flexilis James |
PINACEAE |
| Pinus ponderosa Douglas ex P. & C. Lawson ssp scopulorum (S. Watson) W. A. Weber |
PINACEAE |
| Piptatherum micranthum (Trinius & Ruprecht) Barkworth |
POACEAE |
| Platanthera aquilonis Sheviak |
ORCHIDACEAE |
| Poa alpina L. |
POACEAE |
| Poa pratensis L. |
POACEAE |
| Poa tracyi Vasey |
POACEAE |
| Podospermum laciniatum (L.) De Candolle |
ASTERACEAE |
| Polanisia dodecandra (L.) De Candolle |
CAPPARACEAE |
| Polygonum ramosissimum Michaux |
POLYGONACEAE |
| Polypodium saximontanum Windham |
POLYPODIACEAE |
| Populus angustifolia James |
SALICACEAE |
| Populus balsamifera L. |
SALICACEAE |
| Populus deltoides H. Marshall ssp monilifera (Aiton) Eckenwalder |
SALICACEAE |
| Populus tremuloides Michaux |
SALICACEAE |
| Potamogeton pectinatus L. |
POTAMOGETONACEAE |
| Primula parryi A. Gray |
PRIMULACEAE |
| Prunus americana H. Marshall |
ROSACEAE |
| Psathyrostachys juncea (Fischer) Nevski |
POACEAE |
| Psilochenia runcinata (James ex Torrey) Löve & Löve |
ASTERACEAE |
| Ptelea trifoliata L. |
RUTACEAE |
| Puccinellia airoides Watson & Coulter |
POACEAE |
| Pulsatilla patens (L.) P. Miller ssp multifida (Pritzel) Zamels |
RANUNCULACEAE |
| Quercus gambelii Nuttall |
FAGACEAE |
| Quercus undulata Torrey |
FAGACEAE |
| Ranunculus abortivus L. ssp acrolasius (Fernald) Kapoor & Löve |
RANUNCULACEAE |
| Ranunculus macounii Britton |
RANUNCULACEAE |
| Ratibida columnifera (Nuttall) Wooton & Standley |
ASTERACEAE |
| Rayjacksonia annua (Rydberg) R. L. Hartman & M. A. Lane |
ASTERACEAE |
| Reseda lutea L. |
RESEDACEAE |
| Rhus aromatica Aiton ssp pilosissima (Engelmann) W. A. Weber |
ANACARDIACEAE |
| Rhus aromatica Aiton ssp trilobata (Nuttall ex Torrey & Gray) W. A. Weber |
ANACARDIACEAE |
| Rhus glabra L. |
ANACARDIACEAE |
| Ribes aureum Pursh |
GROSSULARIACEAE |
| Ribes cereum Douglas |
GROSSULARIACEAE |
| Ribes inerme Rydberg |
GROSSULARIACEAE |
| Rorippa teres (Michaux) Stuckey |
BRASSICACEAE |
| Rosa woodsii Lindley |
ROSACEAE |
| Rubacer parviflorum (Nuttall) Rydberg |
ROSACEAE |
| Ruppia cirrhosa (Petagna) Grande ssp occidentalis (S. Watson) Löve & Löve |
RUPPIACEAE |
| Sabina monosperma (Engelmann) Rydberg |
CUPRESSACEAE |
| Sabina scopulorum (Sargent) Rydberg |
CUPRESSACEAE |
| Salix amygdaloides Andersson |
SALICACEAE |
| Salix bebbiana Sargent |
SALICACEAE |
| Salix exigua Nuttall ssp exigua |
SALICACEAE |
| Salix irrorata Andersson |
SALICACEAE |
| Salix lasiandra Bentham var caudata (Nuttall) Sudworth |
SALICACEAE |
| Salsola australis R. Brown |
CHENOPODIACEAE |
| Salsola collina Pallas |
CHENOPODIACEAE |
| Sambucus microbotrys Rydberg |
CAPRIFOLIACEAE |
| Sanguisorba minor Scopoli |
ROSACEAE |
| Sanicula marilandica L. |
APIACEAE |
| Sarcobatus vermiculatus (Hooker) Torrey |
CHENOPODIACEAE |
| Schizachyrium scoparium (Michaux) Nash |
POACEAE |
| Schoenocrambe linearifolia (A. Gray) Rollins |
BRASSICACEAE |
| Schoenoplectus pungens (M. Vahl) Palla |
CYPERACEAE |
| Schoenoplectus validus (Vahl) Löve & Löve |
CYPERACEAE |
| Scirpus microcarpus J. & K. Presl |
CYPERACEAE |
| Scleropogon brevifolius Philippi |
POACEAE |
| Scutellaria brittonii T. C. Porter |
LAMIACEAE |
| Scutellaria galericulata L. var epilobiifolia (Hamilton) Jordal |
LAMIACEAE |
| Selaginella densa Rydberg |
SELAGINELLACEAE |
| Selaginella underwoodii Hieronymus |
SELAGINELLACEAE |
| Selaginella weatherbiana Tryon |
SELAGINELLACEAE |
| Senecio flaccidus Lessing var. douglasii (DeCandolle) Turner & Barkley |
ASTERACEAE |
| Senecio wootonii Greene |
ASTERACEAE |
| Shepherdia canadensis (L.) Nuttall |
ELAEAGNACEAE |
| Silene antirrhina L. |
CARYOPHYLLACEAE |
| Sisyrinchium idahoense Bicknell var occidentale (Bicknell) D. Henderson |
IRIDACEAE |
| Sisyrinchium montanum Greene |
IRIDACEAE |
| Smilax lasioneuron Hooker |
SMILACACEAE |
| Solanum elaeagnifolium Cavanilles |
SOLANACEAE |
| Solidago canadensis L. |
ASTERACEAE |
| Solidago mollis Bartling |
ASTERACEAE |
| Solidago wrightii A. Gray var adenophora S. F. Blake |
ASTERACEAE |
| Sonchus arvensis L. |
ASTERACEAE |
| Sphaeralcea angustifolia (Cavanilles) G. Don var cuspidata A. Gray |
MALVACEAE |
| Sphaeralcea coccinea (Pursh) Rydberg |
MALVACEAE |
| Sporobolus airoides (Torrey) Torrey |
POACEAE |
| Sporobolus nealleyi Vasey |
POACEAE |
| Sporobolus neglectus Nash |
POACEAE |
| Stanleya pinnata (Pursh) Britton |
BRASSICACEAE |
| Stellaria longifolia Mühlenberg ex Willdenow |
ALSINACEAE |
| Suaeda nigra (Rafinesque) Macbride |
CHENOPODIACEAE |
| Swida sericea (L.) Holub |
CORNACEAE |
| Symphoricarpos occidentalis Hooker |
CAPRIFOLIACEAE |
| Symphoricarpos rotundifolius A. Gray |
CAPRIFOLIACEAE |
| Tamarix ramosissima Ledebour |
TAMARICACEAE |
| Tanacetum vulgare L. |
ASTERACEAE |
| Taraxacum officinale G. H. Weber ex Wiggers |
ASTERACEAE |
| Tetraneuris acaulis (Pursh) Greene |
ASTERACEAE |
| Teucrium laciniatum Torrey |
LAMIACEAE |
| Thalictrum fendleri Engelmann ex A. Gray |
THALICTRACEAE |
| Thelesperma subnudum A. Gray |
ASTERACEAE |
| Thelypodium integrifolium (Nuttall) Endlicher |
BRASSICACEAE |
| Thermopsis divaricarpa A. Nelson |
FABACEAE |
| Thymophylla aurea (A. Gray) Greene |
ASTERACEAE |
| Tithymalus brachyceras (Engelmann) Small |
EUPHORBIACEAE |
| Townsendia fendleri A. Gray |
ASTERACEAE |
| Townsendia grandiflora Nuttall |
ASTERACEAE |
| Toxicoscordion venenosum (S. Watson) Rydberg |
MELANTHIACEAE |
| Tragia ramosa (Müller-Argoviensis in De Candolle) Torrey |
EUPHORBIACEAE |
| Tragopogon dubius Scopoli |
ASTERACEAE |
| Tragopogon porrifolius L. |
ASTERACEAE |
| Tridens muticus (Torrey) Nash var elongatus (Buckley) Shinners |
POACEAE |
| Tripterocalyx micranthus (Torrey) Hooker |
NYCTAGINACEAE |
| Verbena hastata L. |
VERBENACEAE |
| Verbena stricta Ventenat |
VERBENACEAE |
| Veronica americana Schweinitz ex Bentham |
SCROPHULARIACEAE |
| Veronica peregrina L. ssp xalapensis (Humboldt,_Bonpland, & Kunth) Pennell |
SCROPHULARIACEAE |
| Veronicastrum serpyllifolium L. ssp humifusum (Dickson) W. A. Weber |
SCROPHULARIACEAE |
| Vexibia nuttalliana (B. Turner) W. A. Weber |
FABACEAE |
| Vicia americana Mühlenberg |
FABACEAE |
| Vicia villosa Roth |
FABACEAE |
| Viola rydbergii Greene |
VIOLACEAE |
| Viola scopulorum (A. Gray) Greene |
VIOLACEAE |
| Virgulus falcatus (Lindley) Reveal & Keener |
ASTERACEAE |
| Vitis riparia Michaux ssp riparia |
VITACEAE |
| Vulpia octoflora (Walter) Rydberg |
POACEAE |
| Woodsia scopulina D. C. Eaton |
DRYOPTERIDACEAE |
| Xanthium strumarium L. |
ASTERACEAE |
| Ximenesia encelioides Cavanilles |
ASTERACEAE |
| Zinnia grandiflora Nuttall |
ASTERACEAE |
