823 Records
| Citation | Family Name |
| Abies concolor (Gordon & Glendower) Lindley ex Hildebrand |
PINACEAE |
| Abronia fragrans Nuttall ex Hooker |
NYCTAGINACEAE |
| Acanthoxanthium spinosum (L.) Fourreau |
ASTERACEAE |
| Acer glabrum Torrey |
ACERACEAE |
| Achillea lanulosa Nuttall |
ASTERACEAE |
| Achnatherum hymenoides (Roemer & Schultes) Barkworth |
POACEAE |
| Achnatherum scribneri (Vasey) Barkworth |
POACEAE |
| Aconitum columbianum Nuttall ex Torrey & Gray var. columbianum |
HELLEBORACEAE |
| Acrolasia albicaulis (Douglas ex Hooker) Rydberg |
LOASACEAE |
| Adenolinum lewisii (Pursh) Löve & Löve |
LINACEAE |
| Adiantum capillus-veneris L. |
PTERIDACEAE |
| Agaloma marginata (Pursh) Löve & Löve |
EUPHORBIACEAE |
| Agastache foeniculum Kuntze |
LAMIACEAE |
| Ageratina herbacea (A. Gray) King & Robinson |
ASTERACEAE |
| Agropyron desertorum Fischer ex Link |
POACEAE |
| Agrostis gigantea Roth |
POACEAE |
| Alisma triviale Pursh |
ALISMATACEAE |
| Allionia incarnata L. |
NYCTAGINACEAE |
| Allium cernuum Roth |
ALLIACEAE |
| Allium geyeri S. Watson |
ALLIACEAE |
| Allium textile Nelson & Macbride |
ALLIACEAE |
| Amaranthus arenicola I. M. Johnston |
AMARANTHACEAE |
| Amaranthus blitoides S. Watson |
AMARANTHACEAE |
| Amaranthus hybridus L. |
AMARANTHACEAE |
| Amaranthus palmeri S. Watson |
AMARANTHACEAE |
| Ambrosia acanthicarpa Hooker |
ASTERACEAE |
| Ambrosia confertiflora De Candolle |
ASTERACEAE |
| Ambrosia psilostachya De Candolle var coronopifolia (Torrey & Gray) Farwell |
ASTERACEAE |
| Ambrosia trifida L. |
ASTERACEAE |
| Amerosedum lanceolatum (Torrey) Löve & Löve |
CRASSULACEAE |
| Amorpha canescens Pursh |
FABACEAE |
| Amorpha fruticosa L. |
FABACEAE |
| Amorpha nana Nuttall |
FABACEAE |
| Anaphalis margaritacea (L.) Bentham & Hooker |
ASTERACEAE |
| Andropogon gerardii Vitman |
POACEAE |
| Andropogon hallii Hackel |
POACEAE |
| Androsace septentrionalis L. |
PRIMULACEAE |
| Anemone cylindrica A. Gray |
RANUNCULACEAE |
| Anemonidium canadense (L.) Löve & Löve |
RANUNCULACEAE |
| Anisantha tectorum (L.) Nevski |
POACEAE |
| Antennaria parvifolia Nuttall |
ASTERACEAE |
| Antennaria rosea Greene |
ASTERACEAE |
| Aphyllon fasciculatum (Nuttall) Torrey & Gray |
OROBANCHACEAE |
| Apocynum androsaemifolium L. |
APOCYNACEAE |
| Apocynum cannabinum L. |
APOCYNACEAE |
| Arabis hirsuta (L.) Scopoli |
BRASSICACEAE |
| Arabis hirsuta (L.) Scopoli var pycnocarpa (Hopkins) Rollins |
BRASSICACEAE |
| Arceuthobium vaginatum (Willdenow) K. Presl ssp cryptopodum (Engelmann) Hawksworth & Wiens |
VISCACEAE |
| Arctium minus (J. Hill) Bernhardi |
ASTERACEAE |
| Argemone hispida A. Gray |
PAPAVERACEAE |
| Argemone polyanthemos (Fedde) G. Ownbey |
PAPAVERACEAE |
| Argyrochosma fendleri (Kunze) Windham |
PTERIDACEAE |
| Argythamnia mercurialina (Nuttall) Müller-Argoviensis |
EUPHORBIACEAE |
| Aristida adscensionis L. |
POACEAE |
| Aristida arizonica Vasey |
POACEAE |
| Aristida divaricata Humboldt & Bonpland ex Willdenow |
POACEAE |
| Aristida purpurea Nuttall |
POACEAE |
| Arnica cordifolia Hooker |
ASTERACEAE |
| Artemisia bigelovii A. Gray |
ASTERACEAE |
| Artemisia carruthii Wood {ex} Carruth |
ASTERACEAE |
| Artemisia frigida Willdenow |
ASTERACEAE |
| Artemisia ludoviciana Nuttall ssp incompta (Nuttall) Keck |
ASTERACEAE |
| Artemisia ludoviciana Nuttall ssp ludoviciana |
ASTERACEAE |
| Asclepias asperula (Decaisne) Woodson ssp asperula |
ASCLEPIADACEAE |
| Asclepias engelmanniana Woodson |
ASCLEPIADACEAE |
| Asclepias involucrata Engelmann ex Torrey |
ASCLEPIADACEAE |
| Asclepias latifolia (Torrey) Rafinesque |
ASCLEPIADACEAE |
| Asclepias macrotis Torrey |
ASCLEPIADACEAE |
| Asclepias oenotheroides Chamisso & Schlechtendal |
ASCLEPIADACEAE |
| Asclepias pumila (A. Gray) Vail |
ASCLEPIADACEAE |
| Asclepias speciosa Torrey |
ASCLEPIADACEAE |
| Asclepias subverticillata (A. Gray) Vail |
ASCLEPIADACEAE |
| Asclepias tuberosa L. ssp terminalis Woodson |
ASCLEPIADACEAE |
| Asclepias uncialis Greene |
ASCLEPIADACEAE |
| Asclepias viridiflora Rafinesque |
ASCLEPIADACEAE |
| Asplenium platyneuron (L.) Britton, Sterns, & Poggenberg |
ASPLENIACEAE |
| Asplenium septentrionale (L.) Hoffman |
ASPLENIACEAE |
| Asplenium trichomanes L. |
ASPLENIACEAE |
| Aster laevis L. |
ASTERACEAE |
| Aster laevis L. var geyeri A. Gray |
ASTERACEAE |
| Aster porteri A. Gray |
ASTERACEAE |
| Astragalus adsurgens Pallas var robustior Hooker |
FABACEAE |
| Astragalus alpinus L. |
FABACEAE |
| Astragalus bisulcatus (Hooker) A. Gray |
FABACEAE |
| Astragalus ceramicus Sheldon var filifolius (A. Gray) F. J. Hermann |
FABACEAE |
| Astragalus crassicarpus Nuttall |
FABACEAE |
| Astragalus drummondii Douglas ex Hooker |
FABACEAE |
| Astragalus flexuosus (Hooker) G. Don |
FABACEAE |
| Astragalus gracilis Nuttall |
FABACEAE |
| Astragalus lentiginosus Douglas ex Hooker |
FABACEAE |
| Astragalus lonchocarpus Torrey |
FABACEAE |
| Astragalus lotiflorus Hooker |
FABACEAE |
| Astragalus missouriensis Nuttall |
FABACEAE |
| Astragalus mollissimus Torrey |
FABACEAE |
| Astragalus nuttallianus De Candolle var micranthemiformis Barneby |
FABACEAE |
| Astragalus pectinatus (Hooker) Douglas in Hooker |
FABACEAE |
| Astragalus puniceus Osterhout |
FABACEAE |
| Astragalus racemosus Pursh |
FABACEAE |
| Astragalus scopulorum T. C. Porter in Porter & Coulter |
FABACEAE |
| Astragalus shortianus Nuttall in Torrey & Gray |
FABACEAE |
| Astragalus tenellus Pursh |
FABACEAE |
| Astrolepis cochisensis (Goodding) D.M. Benham & Windham ssp cochisensis |
PTERIDACEAE |
| Atragene columbiana Nuttall |
RANUNCULACEAE |
| Atriplex canescens (Pursh) Nuttall |
CHENOPODIACEAE |
| Atriplex rosea L. |
CHENOPODIACEAE |
| Baccharis salicina Torrey & Gray |
ASTERACEAE |
| Baccharis wrightii A. Gray |
ASTERACEAE |
| Barbarea vulgaris R. Brown |
BRASSICACEAE |
| Bassia sieversiana (Pallas) W. A. Weber |
CHENOPODIACEAE |
| Berlandiera lyrata Bentham |
ASTERACEAE |
| Berula erecta (Hudson) Coville |
APIACEAE |
| Besseya alpina (A. Gray) Rydberg |
SCROPHULARIACEAE |
| Besseya plantaginea (Bentham in De Candolle) Rydberg |
SCROPHULARIACEAE |
| Bidens bigelovii A. Gray |
ASTERACEAE |
| Bidens comosa (A. Gray) Wiegand |
ASTERACEAE |
| Bistorta bistortoides (Pursh) Small |
POLYGONACEAE |
| Boechera fendleri (S. Watson) W. A. Weber |
BRASSICACEAE |
| Bolophyta tetraneuris (Barneby) W. A. Weber |
ASTERACEAE |
| Bothriochloa laguroides (De Candolle) Herter ssp torreyana (Steudel) Allred & Gould |
POACEAE |
| Bothriochloa springfieldii Gould |
POACEAE |
| Bouteloua curtipendula (Michaux) Torrey |
POACEAE |
| Brickellia brachyphylla A. Gray |
ASTERACEAE |
| Brickellia californica (Torrey & Gray) A. Gray |
ASTERACEAE |
| Brickellia eupatorioides (L.) Shinners |
ASTERACEAE |
| Brickellia grandiflora (Hooker) Nuttall |
ASTERACEAE |
| Brickellia rosmarinifolia (Ventenat) W. A. Weber ssp chlorolepis (Wooton & Standley) W. A. Weber |
ASTERACEAE |
| Bromopsis canadensis (Michaux) Holub |
POACEAE |
| Bromopsis inermis (Leysser) Holub |
POACEAE |
| Bromopsis lanatipes (Shear) Holub |
POACEAE |
| Bromus japonicus Thunberg |
POACEAE |
| Buchloë dactyloides (Nuttall) Engelmann |
POACEAE |
| Caesalpinia jamesii (Torrey & Gray) Fisher |
FABACEAE |
| Calamovilfa longifolia (Hooker) Scribner in Hackel |
POACEAE |
| Callirhoë involucrata (Torrey & Gray) A. Gray |
MALVACEAE |
| Calochortus gunnisonii S. Watson |
CALOCHORTACEAE |
| Calylophus hartwegii (Bentham) Raven ssp pubescens (A. Gray) Towner & Raven |
ONAGRACEAE |
| Calylophus lavandulifolius (Torrey & Gray) Raven |
ONAGRACEAE |
| Calylophus serrulatus (Nuttall) Raven |
ONAGRACEAE |
| 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 |
| Carex bella L. H. Bailey |
CYPERACEAE |
| Carex brevior (Dewey) Mackenzie |
CYPERACEAE |
| Carex ebenea Rydberg |
CYPERACEAE |
| Carex emoryi Dewey in Torrey |
CYPERACEAE |
| Carex geophila Mackenzie |
CYPERACEAE |
| Carex gravida L. H. Bailey var lunelliana (Mackenzie) F. J. Hermann |
CYPERACEAE |
| Carex hystericina Mühlenberg ex Willdenow |
CYPERACEAE |
| Carex interior L. H. Bailey |
CYPERACEAE |
| Carex lanuginosa Michaux |
CYPERACEAE |
| Carex microptera Mackenzie |
CYPERACEAE |
| Carex occidentalis L. H. Bailey |
CYPERACEAE |
| Carex sprengelii Dewey ex Sprengel |
CYPERACEAE |
| Carex utriculata F. Boott |
CYPERACEAE |
| Carex vulpinoidea Michaux |
CYPERACEAE |
| Castilleja haydenii (A. Gray) Cockerell |
SCROPHULARIACEAE |
| Castilleja integra A. Gray in Torrey |
SCROPHULARIACEAE |
| Castilleja lineata Greene |
SCROPHULARIACEAE |
| Castilleja miniata Douglas ex Hooker |
SCROPHULARIACEAE |
| Castilleja sessiliflora Pursh |
SCROPHULARIACEAE |
| Castilleja sulphurea Rydberg |
SCROPHULARIACEAE |
| Ceanothus fendleri A. Gray |
RHAMNACEAE |
| Celtis reticulata Torrey |
ULMACEAE |
| Cenchrus longispinus (Hackel in Kneucker) Fernald |
POACEAE |
| Cerastium fontanum Baumgartner |
ALSINACEAE |
| Cerastium strictum L. {emend.} Haenke |
ALSINACEAE |
| Cercocarpus montanus Rafinesque |
ROSACEAE |
| Chaetopappa ericoides (A. Gray) Nesom |
ASTERACEAE |
| Chamaesaracha conioides (Moricand) Britton |
SOLANACEAE |
| Chamaesaracha coronopus (Dunal) A. Gray |
SOLANACEAE |
| Chamaesyce fendleri (Torrey & Gray) Small |
EUPHORBIACEAE |
| Chamaesyce geyeri (Engelmann) Small |
EUPHORBIACEAE |
| Chamaesyce glyptosperma (Engelmann) Small |
EUPHORBIACEAE |
| Chamaesyce lata (Engelmann) Small |
EUPHORBIACEAE |
| Chamaesyce missurica (Rafinesque) Shinners |
EUPHORBIACEAE |
| Chamaesyce serpyllifolia (Persoon) Small |
EUPHORBIACEAE |
| Chamaesyce stictospora (Engelmann) Small |
EUPHORBIACEAE |
| Chamerion danielsii D. Löve |
ONAGRACEAE |
| Cheilanthes eatonii J. G. Baker in Hooker & Baker |
PTERIDACEAE |
| Cheilanthes féei T. Moore |
PTERIDACEAE |
| Cheilanthes fendleri Hooker |
PTERIDACEAE |
| Chenopodium berlandieri Moquin |
CHENOPODIACEAE |
| Chenopodium cycloides A. Nelson |
CHENOPODIACEAE |
| Chenopodium fremontii S. Watson |
CHENOPODIACEAE |
| Chenopodium incanum (S. Watson) Heller |
CHENOPODIACEAE |
| Chenopodium leptophyllum (Nuttall ex Moquin) S. Watson |
CHENOPODIACEAE |
| Chenopodium pratericola Rydberg |
CHENOPODIACEAE |
| Chenopodium simplex (Torrey) Rafinesque |
CHENOPODIACEAE |
| Chenopodium watsonii A. Nelson |
CHENOPODIACEAE |
| Chimaphila umbellata (L.) W. Barton ssp occidentalis (Rydberg) Hultén |
PYROLACEAE |
| Chloris verticillata Nuttall |
POACEAE |
| Chondrophylla aquatica (L.) W. A. Weber |
GENTIANACEAE |
| Chondrosum eriopodum Torrey |
POACEAE |
| Chondrosum gracile Humboldt, Bonpland, & Kunth |
POACEAE |
| Chondrosum hirsutum (Lagasca) Sweet |
POACEAE |
| Chondrosum prostratum (Lagasca) Sweet |
POACEAE |
| Chrysothamnus nauseosus (Pallas ex Pursh) Britton ssp graveolens (Nuttall) Piper |
ASTERACEAE |
| Chrysothamnus nauseosus (Pallas ex Pursh) Britton ssp nauseosus |
ASTERACEAE |
| Ciliaria austromontana (Wiegand) W. A. Weber |
SAXIFRAGACEAE |
| Cirsium hesperium (Eastwood) Petrak |
ASTERACEAE |
| Cirsium pallidum Wooton & Standley |
ASTERACEAE |
| Cirsium undulatum (Nuttall) Sprengel |
ASTERACEAE |
| Claytonia megarhiza (Parry ex A. Gray) S. Watson |
PORTULACACEAE |
| Clematis ligusticifolia Nuttall ex Torrey & Gray |
RANUNCULACEAE |
| Cleome serrulata Pursh |
CAPPARACEAE |
| Clinopodium vulgare L. |
LAMIACEAE |
| Coeloglossum viride (L.) C. J. Hartman ssp bracteatum (Mühlenberg ex Willdenow) Hultén |
ORCHIDACEAE |
| Collomia linearis Nuttall |
POLEMONIACEAE |
| Comandra umbellata (L.) Nuttall ssp pallida (A. De Candolle) Piehl |
SANTALACEAE |
| Commelina dianthifolia Delile |
COMMELINACEAE |
| Commelina erecta L. var angustifolia (Michaux) Fernald |
COMMELINACEAE |
| Conium maculatum L. |
APIACEAE |
| Conopholis alpina Liebmann var mexicana (A. Gray ex S. Watson) Haynes |
OROBANCHACEAE |
| Conringia orientalis (L.) Dumont de Cours |
BRASSICACEAE |
| Convolvulus arvensis L. |
CONVOLVULACEAE |
| Convolvulus equitans Bentham |
CONVOLVULACEAE |
| Conyza canadensis (L.) Cronquist |
ASTERACEAE |
| Corallorhiza maculata Rafinesque |
ORCHIDACEAE |
| Corallorhiza striata Lindley |
ORCHIDACEAE |
| Corallorhiza trifida (L.) Chatelain |
ORCHIDACEAE |
| Coriflora hirsutissima (Pursh) W. A. Weber |
RANUNCULACEAE |
| Coriflora scottii (T. C. Porter in Porter & Coulter) W. A. Weber |
RANUNCULACEAE |
| 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 |
| Critesion pusillum (Nuttall) Löve |
POACEAE |
| Croton texensis (Klotsch) Müller-Argoviensis in De Candolle |
EUPHORBIACEAE |
| Crunocallis chamissoi (Ledebour ex Sprengel) Rydberg |
PORTULACACEAE |
| Cryptantha crassisepala (Torrey & Gray) Greene |
BORAGINACEAE |
| Cryptantha fendleri (A. Gray) Greene |
BORAGINACEAE |
| Cryptantha minima Rydberg |
BORAGINACEAE |
| Cucurbita foetidissima Humboldt, Bonpland, & Kunth |
CUCURBITACEAE |
| Cyclachaena xanthifolia (Nuttall) Fresenius |
ASTERACEAE |
| Cyclanthera dissecta (Torrey & Gray) Arnott |
CUCURBITACEAE |
| Cycloloma atriplicifolium (Sprengel) Coulter |
CHENOPODIACEAE |
| Cylindropuntia imbricata (Haworth) Knuth |
CACTACEAE |
| Cylindropyrum cylindricum (Host) Löve |
POACEAE |
| Cymopterus acaulis (Pursh) Rafinesque |
APIACEAE |
| Cymopterus montanus Torrey & Gray |
APIACEAE |
| Cynoglossum officinale L. |
BORAGINACEAE |
| Cyperus sphaerolepis Boeck. |
CYPERACEAE |
| Cystopteris fragilis (L.) Bernhardi |
DRYOPTERIDACEAE |
| Cystopteris reevesiana Lellinger |
DRYOPTERIDACEAE |
| Cystopteris undetermined |
DRYOPTERIDACEAE |
| Dalea aurea Nuttall ex Pursh |
FABACEAE |
| Dalea candida Willdenow var oligophylla (Torrey) Shinners |
FABACEAE |
| Dalea enneandra Nuttall |
FABACEAE |
| Dalea formosa Torrey |
FABACEAE |
| Dalea jamesii (Torrey) Torrey & Gray |
FABACEAE |
| Dalea purpurea Ventenat |
FABACEAE |
| Dalea tenuifolia (A. Gray) Shinners |
FABACEAE |
| Dalea villosa Sprengel |
FABACEAE |
| Delphinium alpestre Rydberg |
HELLEBORACEAE |
| Delphinium carolinianum Walter ssp virescens (Nuttall) R. Brooks |
HELLEBORACEAE |
| Delphinium ramosum Rydberg |
HELLEBORACEAE |
| Delphinium wootonii Rydberg |
HELLEBORACEAE |
| Descurainia pinnata (Walter) Britton |
BRASSICACEAE |
| Descurainia sophia (L.) Webb ex Prantl |
BRASSICACEAE |
| Desmanthus cooleyi (A. Eaton) Trelease |
FABACEAE |
| Desmanthus illinoensis (Michaux) MacMillan ex Robinson & Fernald |
FABACEAE |
| Dichanthelium linearifolium (Scribner) Gould |
POACEAE |
| Dichanthelium oligosanthes (Schultes) Gould var scribnerianum (Nash) Gould |
POACEAE |
| Digitaria californica (Bentham) Henrard |
POACEAE |
| Diplachne dubia (Kunth) Scribner |
POACEAE |
| Diplachne fascicularis (Lamarck) P. Beauvois |
POACEAE |
| Distegia involucrata (Banks ex Sprengel) Cockerell |
CAPRIFOLIACEAE |
| Dodecatheon pulchellum (Rafinesque) Merrill |
PRIMULACEAE |
| Draba reptans (Lamarck) Fernald |
BRASSICACEAE |
| Draba smithii Gilg ex O. E. Schulz |
BRASSICACEAE |
| Draba streptocarpa A. Gray |
BRASSICACEAE |
| Drymocallis arguta (Pursh) Rydberg |
ROSACEAE |
| Dryopteris filix-mas (L.) Schott |
DRYOPTERIDACEAE |
| Dyssodia papposa (Ventenat) A. S. Hitchcock |
ASTERACEAE |
| Echinacea angustifolia De Candolle |
ASTERACEAE |
| Echinocereus reichenbachii (Terschek) Haage var perbellus (Britton & Rose) L. Benson |
CACTACEAE |
| Echinocereus viridiflorus Engelmann |
CACTACEAE |
| Echinochloa crus-galli (L.) P. Beauvois |
POACEAE |
| Eleocharis palustris (L.) Roemer & Schultes |
CYPERACEAE |
| Ellisia nyctelea (L.) L. |
HYDROPHYLLACEAE |
| Elodea bifoliata St. John |
HYDROCHARITACEAE |
| Elodea nuttallii (Planchon) St. John |
HYDROCHARITACEAE |
| Elymus canadensis L. |
POACEAE |
| Elymus longifolius (J. G. Smith) Gould |
POACEAE |
| Elymus scribneri (Vasey) Jones |
POACEAE |
| Elymus trachycaulus (Link) Gould |
POACEAE |
| Elytrigia repens (L.) Nevski |
POACEAE |
| Engelmannia peristenia (Rafinesque) Goodman & Lawson |
ASTERACEAE |
| Epilobium saximontanum Haussknecht |
ONAGRACEAE |
| Eragrostis cilianensis (Allioni) F. T. Hubbard |
POACEAE |
| Eragrostis curvula (Schrader) Nees |
POACEAE |
| Eragrostis diffusa Buckley |
POACEAE |
| Eragrostis minor Host |
POACEAE |
| Eragrostis pilosa (L.) P. Beauvois |
POACEAE |
| Eragrostis secundiflora J. Presl in K. Presl ssp oxylepis (Torrey) S. D. Koch |
POACEAE |
| Eragrostis spectabilis (Pursh) Steudel |
POACEAE |
| Eragrostis trichodes (Nuttall) Wood |
POACEAE |
| Eremogone fendleri (A. Gray) Ikonnikov |
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 bellidiastrum Nuttall |
ASTERACEAE |
| Erigeron canus A. Gray |
ASTERACEAE |
| Erigeron colo-mexicanus A. Nelson |
ASTERACEAE |
| Erigeron coulteri T. C. Porter |
ASTERACEAE |
| Erigeron divergens Torrey & Gray |
ASTERACEAE |
| Erigeron elatior (A. Gray) Greene |
ASTERACEAE |
| Erigeron eximius Greene |
ASTERACEAE |
| Erigeron flagellaris A. Gray |
ASTERACEAE |
| Erigeron formosissimus Greene |
ASTERACEAE |
| Erigeron formosissimus Greene var viscidus (Rydberg) Cronquist |
ASTERACEAE |
| Erigeron pumilus Nuttall |
ASTERACEAE |
| Erigeron speciosus (Lindley) De Candolle |
ASTERACEAE |
| Erigeron vetensis Rydberg |
ASTERACEAE |
| Eriogonum annuum Nuttall |
POLYGONACEAE |
| Eriogonum effusum Nuttall |
POLYGONACEAE |
| Eriogonum fendlerianum (Bentham in De Candolle) Small |
POLYGONACEAE |
| Eriogonum jamesii Bentham in A. De Candolle |
POLYGONACEAE |
| Eriogonum lachnogynum Torrey ex Bentham in A. De Candolle |
POLYGONACEAE |
| Eriogonum racemosum Nuttall |
POLYGONACEAE |
| Eriogonum tenellum Torrey |
POLYGONACEAE |
| Erioneuron pilosum (Buckley) Nash |
POACEAE |
| Eriophorum angustifolium Honckeny |
CYPERACEAE |
| Eriophorum gracile W.D.J. Koch in Roth |
CYPERACEAE |
| Erodium cicutarium (L.) L'Heritier |
GENTIANACEAE |
| Erysimum asperum (Nuttall) De Candolle |
BRASSICACEAE |
| Erysimum capitatum (Douglas) Greene |
BRASSICACEAE |
| Erysimum inconspicuum (S. Watson) MacMillan |
BRASSICACEAE |
| Evolvulus nuttallianus Schultes |
CONVOLVULACEAE |
| Fallopia convolvulus (L.) Löve |
POLYGONACEAE |
| Festuca arizonica Vasey |
POACEAE |
| Festuca hallii (Vasey) Piper |
POACEAE |
| Forsellesia planitierum Ensign |
CROSSOSOMATACEAE |
| Fragaria vesca L. ssp bracteata (Heller) Staudt |
ROSACEAE |
| Fragaria virginiana P. Miller ssp glauca (S. Watson) Staudt |
ROSACEAE |
| Frasera coloradensis (C. M. Rogers) D. Post |
GENTIANACEAE |
| Froelichia gracilis (Hooker) Moquin |
AMARANTHACEAE |
| Fumaria vaillantii Loiseleur |
FUMARIACEAE |
| Gaillardia aristata Pursh |
ASTERACEAE |
| Gaillardia pinnatifida Torrey |
ASTERACEAE |
| Galium aparine L. |
RUBIACEAE |
| Galium septentrionale Roemer & Schultes |
RUBIACEAE |
| Galium spurium L. |
RUBIACEAE |
| Galium triflorum Michaux |
RUBIACEAE |
| Gastrolychnis drummondii (Hooker) Löve & Löve |
CARYOPHYLLACEAE |
| Gaura coccinea Nuttall ex Pursh |
ONAGRACEAE |
| Gaura mollis James |
ONAGRACEAE |
| Gentianella strictiflora (Rydberg) W. A. Weber |
GENTIANACEAE |
| Geranium caespitosum James ex Torrey |
GERANIACEAE |
| Geum macrophyllum Willdenow |
ROSACEAE |
| Geum rivale L. |
ROSACEAE |
| Gilia ophthalmoides Brand |
POLEMONIACEAE |
| Glandularia bipinnatifida (Nuttall) Nuttall |
VERBENACEAE |
| Glycyrrhiza lepidota Pursh |
FABACEAE |
| Goodyera oblongifolia Rafinesque |
ORCHIDACEAE |
| Goodyera repens (L.) R. Brown |
ORCHIDACEAE |
| Grammica cuspidata (Engelmann) Hadaç & Chrtek |
CUSCUTACEAE |
| Grammica indecora (Choisy) W. A. Weber var neuropetala (Engelmann) W. A. Weber |
CUSCUTACEAE |
| Grindelia decumbens Greene var subincisa (Greene) Steyermark |
ASTERACEAE |
| Grindelia inornata Greene |
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 |
| Harbouria trachypleura (A. Gray) Coulter & Rose |
APIACEAE |
| Hecatonia scelerata (L.) Fourreau |
RANUNCULACEAE |
| Hedeoma drummondii Bentham |
LAMIACEAE |
| Hedysarum boreale Nuttall |
FABACEAE |
| Helenium microcephalum DeCandolle |
ASTERACEAE |
| Helianthus annuus L. |
ASTERACEAE |
| Helianthus nuttallii Torrey & Gray |
ASTERACEAE |
| Helianthus petiolaris Nuttall |
ASTERACEAE |
| Helianthus tuberosus L. |
ASTERACEAE |
| Heliomeris longifolia (B.L. Robinson & Greenman) Cockerell |
ASTERACEAE |
| Heliomeris multiflora Nuttall |
ASTERACEAE |
| Heliomeris multiflora Nuttall var nevadensis (A. Nelson) W.F. Yates |
ASTERACEAE |
| Heliopsis helianthoides (L.) Sweet var scabra (Dunal) Fernald |
ASTERACEAE |
| Heracleum sphondylium L. ssp montanum (Schleicher ex Gaudin) Briquet in Schinz & Thellung |
APIACEAE |
| Herrickia horrida Wooton & Standley |
ASTERACEAE |
| Hesperostipa comata (Trinius & Ruprecht) Barkworth |
POACEAE |
| Hesperostipa neomexicana (Thurber) Barkworth |
POACEAE |
| Heteranthera limosa (Swartz) Willdenow |
PONTEDERIACEAE |
| Heterospermum pinnatum Cavanilles |
ASTERACEAE |
| Heterotheca canescens (De Candolle) Shinners |
ASTERACEAE |
| Heterotheca villosa (Pursh) Shinners |
ASTERACEAE |
| Heuchera parvifolia Nuttall ex Torrey & Gray |
SAXIFRAGACEAE |
| Heuchera versicolor Greene |
SAXIFRAGACEAE |
| Hilaria jamesii (Torrey) Bentham |
POACEAE |
| Hippochaete laevigata (A. Braun) Farwell |
EQUISETACEAE |
| Hoffmanseggia drepanocarpa A. Gray |
FABACEAE |
| Holodiscus dumosus (Nuttall ex Hooker) Heller |
ROSACEAE |
| Hybanthus verticillatus (Ortega) Baillon |
VIOLACEAE |
| Hydrophyllum fendleri (A. Gray) Heller |
HYDROPHYLLACEAE |
| Hymenopappus filifolius Hooker var cinereus (Rydberg) I. M. Johnston |
ASTERACEAE |
| Hymenopappus filifolius Hooker var parvulus (Greene) B. Turner |
ASTERACEAE |
| Hymenopappus tenuifolius Pursh |
ASTERACEAE |
| Hypericum formosum Humboldt, Bonpland, & Kunth |
HYPERICACEAE |
| Hypopitys monotropa Crantz |
MONOTROPACEAE |
| Hypoxis hirsuta (L.) Coville |
HYPOXIDACEAE |
| Ipomoea leptophylla Torrey |
CONVOLVULACEAE |
| Ipomopsis aggregata (Pursh) V. Grant ssp candida (Rydberg) V. & A. Grant |
POLEMONIACEAE |
| Ipomopsis aggregata (Pursh) V. Grant ssp collina (Greene) Wilken & Allard |
POLEMONIACEAE |
| Ipomopsis laxiflora (Coulter) V. Grant |
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 bufonius L. |
JUNCACEAE |
| Juncus dudleyi Wiegand |
JUNCACEAE |
| Juncus interior Wiegand |
JUNCACEAE |
| Juncus torreyi Coville |
JUNCACEAE |
| Kallstroemia parviflora Norton |
ZYGOPHYLLACEAE |
| Koeleria macrantha (Ledebour) Schultes |
POACEAE |
| Krameria lanceolata Torrey |
KRAMERIACEAE |
| 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 |
| Lathyrus eucosmus Butters & St. John |
FABACEAE |
| Lathyrus latifolius L. |
FABACEAE |
| Lathyrus leucanthus Rydberg |
FABACEAE |
| Lathyrus polymorphus Nuttall |
FABACEAE |
| Leersia oryzoides (L.) Swartz |
POACEAE |
| Lemna minor L. |
LEMNACEAE |
| Lepidium densiflorum Schrader |
BRASSICACEAE |
| Leptodactylon pungens (Torrey) Rydberg |
POLEMONIACEAE |
| Lesquerella calcicola Rollins |
BRASSICACEAE |
| Lesquerella fendleri (A. Gray) S. Watson |
BRASSICACEAE |
| Lesquerella montana (A. Gray) S. Watson |
BRASSICACEAE |
| Lesquerella ovalifolia Rydberg |
BRASSICACEAE |
| Leucocrinum montanum Nuttall ex A. Gray |
LILIACEAE |
| Liatris punctata Hooker |
ASTERACEAE |
| Lilium philadelphicum L. |
LILIACEAE |
| Limnorchis hyperborea (L.) Rydberg |
ORCHIDACEAE |
| Linaria genistifolia (L.) P. Miller ssp dalmatica (L.) Maire et al. |
SCROPHULARIACEAE |
| Lithospermum incisum Lehmann |
BORAGINACEAE |
| Lithospermum multiflorum Torrey ex A. Gray |
BORAGINACEAE |
| Lloydia serotina (L.) Salisbury ex Reichenbach |
LILIACEAE |
| Lobelia cardinalis L. ssp graminea (Lamarck) McVaugh |
CAMPANULACEAE |
| Lomatium foeniculaceum (Nuttall) Coulter & Rose |
APIACEAE |
| Lomatium foeniculaceum (Nuttall) Coulter & Rose ssp foeniculaceum |
APIACEAE |
| Lupinus argenteus Pursh |
FABACEAE |
| Lupinus plattensis S. Watson |
FABACEAE |
| Lupinus pusillus Pursh |
FABACEAE |
| Lupinus pusillus Pursh ssp pusillus |
FABACEAE |
| Lycium pallidum Miers |
SOLANACEAE |
| Lycopus americanus Mühlenberg ex W. Barton |
LAMIACEAE |
| Lycurus setosus (Nuttall) C. Reeder |
POACEAE |
| Lygodesmia juncea (Pursh) D. Don |
ASTERACEAE |
| Lysimachia ciliata L. |
PRIMULACEAE |
| Machaeranthera bigelovii (A. Gray) Greene |
ASTERACEAE |
| Machaeranthera pinnatifida (Hooker) Shinners |
ASTERACEAE |
| Machaeranthera pinnatifida (Hooker) Shinners var. pinnatifida |
ASTERACEAE |
| Machaeranthera tanacetifolia (Humboldt, Bonpland, & Kunth) Nees |
ASTERACEAE |
| Madia glomerata Hooker |
ASTERACEAE |
| Mahonia haematocarpa (Wooton) Fedde |
BERBERIDACEAE |
| Malus domestica Borkhausen |
ROSACEAE |
| Malva neglecta Wallroth |
MALVACEAE |
| Mariscus schweinitzii (Torrey) Koyama |
CYPERACEAE |
| Marrubium vulgare L. |
LAMIACEAE |
| Marsilea vestita Hooker & Greville |
MARSILEACEAE |
| Medicago sativa L. |
FABACEAE |
| Melampodium leucanthum Torrey & Gray |
ASTERACEAE |
| Melilotus albus Medicus |
FABACEAE |
| Melilotus officinale (L.) Pallas |
FABACEAE |
| Mentha arvensis L. |
LAMIACEAE |
| Mentha spicata L. |
LAMIACEAE |
| Mentzelia oligosperma Nuttall ex Sims |
LOASACEAE |
| Mertensia franciscana Heller |
BORAGINACEAE |
| Mertensia lanceolata (Pursh) A. De Candolle |
BORAGINACEAE |
| Mertensia lanceolata (Pursh) A. De Candolle var viridis A. Nelson |
BORAGINACEAE |
| Mesynium australe (Heller) W. A. Weber |
LINACEAE |
| Mesynium puberulum (Engelmann in A. Gray) W. A. Weber |
LINACEAE |
| Mesynium rigidum (Pursh) Löve & Löve |
LINACEAE |
| Micranthes rhomboidea (Greene) Small |
SAXIFRAGACEAE |
| Microsteris gracilis (Douglas ex Hooker) Greene ssp humilis (Greene) V. Grant |
POLEMONIACEAE |
| Mimosa borealis A. Gray |
FABACEAE |
| Mimulus glabratus Humboldt, Bonpland, & Kunth |
SCROPHULARIACEAE |
| 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 |
| Monroa squarrosa (Nuttall) Torrey |
POACEAE |
| Muhlenbergia arenacea (Buckley) A. S. Hitchcock |
POACEAE |
| Muhlenbergia arenicola Buckley |
POACEAE |
| Muhlenbergia asperifolia (Nees & Meyen ex Trinius) Parodi |
POACEAE |
| Muhlenbergia cuspidata (Torrey) Rydberg |
POACEAE |
| Muhlenbergia minutissima (Steudel) Swallen |
POACEAE |
| Muhlenbergia montana (Nuttall) A. S. Hitchcock |
POACEAE |
| Muhlenbergia porteri Scribner |
POACEAE |
| Muhlenbergia racemosa (Michaux) Britton, Sterns, & Poggenberg |
POACEAE |
| Muhlenbergia torreyi (Kunth) A. S. Hitchcock ex Bush |
POACEAE |
| Muhlenbergia wrightii Vasey ex Coulter |
POACEAE |
| Musineon divaricatum (Pursh) Nuttal ex Torrey & Gray |
APIACEAE |
| Najas guadalupensis (Sprengel) Magnus |
NAJADACEAE |
| Nassella viridula (Trinius) Barkworth |
POACEAE |
| Nasturtium officinale R. Brown |
BRASSICACEAE |
| Negundo aceroides (L.) Moench |
ACERACEAE |
| Negundo aceroides (L.) Moench ssp interius (Britton & Shafer) Löve & Löve |
ACERACEAE |
| Noccaea montana (L.) F. K. Meyer |
BRASSICACEAE |
| Nolina texana S. Watson |
NOLINACEAE |
| Nothocalais cuspidata (Pursh) Greene |
ASTERACEAE |
| Notholaena standleyi Maxon |
PTERIDACEAE |
| Nuttallia decapetala (Pursh ex Sims) Greene |
LOASACEAE |
| Nuttallia nuda (Pursh) Greene |
LOASACEAE |
| Nuttallia reverchonii (Urban & Gilg) W. A. Weber |
LOASACEAE |
| Oenothera albicaulis Pursh |
ONAGRACEAE |
| Oenothera coronopifolia Torrey & Gray |
ONAGRACEAE |
| Oenothera elata Humboldt, Bonpland, & Kunth ssp hirsutissima (A. Gray ex S. Watson) Dietrich & Wagner |
ONAGRACEAE |
| Oenothera harringtonii W. L. Wagner et al in W. L. Wagner |
ONAGRACEAE |
| Oenothera latifolia (Rydberg) Munz |
ONAGRACEAE |
| Oenothera villosa Thunberg ssp strigosa (Rydberg) Dietrich & Raven |
ONAGRACEAE |
| Oligoneuron rigidum (L.) Small |
ASTERACEAE |
| Oligosporus caudatus (Michaux) Poljakov |
ASTERACEAE |
| Oligosporus dracunculus (L.) Poljakov |
ASTERACEAE |
| Oligosporus dracunculus (L.) Poljakov ssp dracunculinus (S. Watson) W. A. Weber |
ASTERACEAE |
| Oligosporus filifolius (Torrey) Poljakov |
ASTERACEAE |
| Oligosporus pacificus (Nuttall) Poljakov |
ASTERACEAE |
| Onopordum acanthium L. |
ASTERACEAE |
| Onosmodium molle Michaux ssp occidentale (Mackenzie) Cochrane |
BORAGINACEAE |
| Opuntia macrorhiza Engelmann |
CACTACEAE |
| Opuntia phaeacantha Engelmann |
CACTACEAE |
| Opuntia polyacantha Haworth var. polyacantha |
CACTACEAE |
| Oreobatus deliciosus (James ex Torrey) Rydberg |
ROSACEAE |
| Oreobatus deliciosus James ex Torrey subsp. neomexicanus (Gray) W. A. Weber |
ROSACEAE |
| Oreocarya suffruticosa (Torrey) Greene |
BORAGINACEAE |
| Oreocarya thyrsiflora Greene |
BORAGINACEAE |
| Oreoxis alpina (A. Gray) Coulter & Rose ssp puberulenta W. A. Weber |
APIACEAE |
| Orobanche multiflora Nuttall |
OROBANCHACEAE |
| Orthilia secunda (L.) House |
PYROLACEAE |
| Osmorhiza depauperata Philippi |
APIACEAE |
| Osmorhiza longistylis (Torrey) De Candolle |
APIACEAE |
| Oxalis dillenii Jacquin |
OXALIDACEAE |
| Oxalis violacea L. |
OXALIDACEAE |
| Oxybaphus carletonii (Standley) Weatherby |
NYCTAGINACEAE |
| Oxybaphus exaltatus (Standley) Weatherby |
NYCTAGINACEAE |
| Oxybaphus hirsutus (Pursh) Sweet in De Candolle |
NYCTAGINACEAE |
| Oxybaphus linearis (Pursh) B. L. Robinson |
NYCTAGINACEAE |
| Oxybaphus nyctagineus (Michaux) T. C. Porter in Porter & Coulter |
NYCTAGINACEAE |
| Oxybaphus rotundifolius (Greene) Standley |
NYCTAGINACEAE |
| Oxytropis lambertii Pursh |
FABACEAE |
| Oxytropis lambertii Pursh ssp lambertii |
FABACEAE |
| Oxytropis sericea Nuttall |
FABACEAE |
| Oönopsis engelmannii (A. Gray) Greene |
ASTERACEAE |
| Oönopsis foliosa (A. Gray) Greene var foliosa |
ASTERACEAE |
| Oönopsis foliosa (A. Gray) Greene var monocephala (A. Nelson) Kartesz & Gandhi |
ASTERACEAE |
| Packera fendleri (A. Gray) Weber & Löve |
ASTERACEAE |
| Packera plattensis (Nuttall) Weber & Löve |
ASTERACEAE |
| Packera tridenticulata (Rydberg) Weber & Löve |
ASTERACEAE |
| Padus virginiana (L.) P. Miller ssp melanocarpa (A. Nelson) W. A. Weber |
ROSACEAE |
| Palafoxia rosea (Bush) Cory var macrolepis (Rydberg) B. Turner |
ASTERACEAE |
| Palafoxia sphacelata (Nuttall ex Torrey) Cory |
ASTERACEAE |
| Panicum capillare L. |
POACEAE |
| Panicum hallii Vasey |
POACEAE |
| Panicum obtusum Humboldt, Bonpland, & Kunth |
POACEAE |
| Panicum virgatum L. |
POACEAE |
| Parietaria pensylvanica Mühlenberg ex Willdenow |
URTICACEAE |
| Parnassia parviflora De Candolle |
PARNASSIACEAE |
| Paronychia jamesii Torrey & Gray |
ALSINACEAE |
| Paronychia sessiliflora Nuttall |
ALSINACEAE |
| Parthenocissus vitacea (Knerr) A. S. Hitchcock |
VITACEAE |
| Pascopyrum smithii (Rydberg) Löve |
POACEAE |
| Paspalum setaceum Michaux var stramineum (Nash) D. Banks |
POACEAE |
| Paxistima myrsinites (Pursh) Rafinesque |
CELASTRACEAE |
| Pectis angustifolia Torrey |
ASTERACEAE |
| Pedicularis canadensis L. ssp fluviatilis (Heller) W. A. Weber |
SCROPHULARIACEAE |
| Pedicularis procera A. Gray |
SCROPHULARIACEAE |
| Pediomelum hypogaeum (Nuttall ex Torrey & Gray) Rydberg |
FABACEAE |
| Peganum harmala L. |
ZYGOPHYLLACEAE |
| Pellaea atropurpurea (L.) Link |
PTERIDACEAE |
| Pellaea glabella Mettenius ex Kuhn subsp. simplex Löve & Löve |
PTERIDACEAE |
| Pellaea wrightiana Hooker |
PTERIDACEAE |
| Penstemon albidus Nuttall |
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 barbatus (Cavanilles) Roth ssp torreyi (Bentham in De Candolle) Keck |
SCROPHULARIACEAE |
| Penstemon brandegei (T. C. Porter) T. C. Porter ex Rydberg |
SCROPHULARIACEAE |
| Penstemon gracilis Nuttall |
SCROPHULARIACEAE |
| Penstemon jamesii Bentham |
SCROPHULARIACEAE |
| Penstemon versicolor Pennell |
SCROPHULARIACEAE |
| Pericome caudata A. Gray var glandulosa (Goodman) Harrington |
ASTERACEAE |
| Persicaria coccinea (Mühlenberg ex Willdenow) Greene |
POLYGONACEAE |
| Persicaria lapathifolia (L.) S. Gray |
POLYGONACEAE |
| Persicaria maculata (L.) S. Gray |
POLYGONACEAE |
| Phacelia alba Rydberg |
HYDROPHYLLACEAE |
| Phacelia bakeri (Brand) Macbride |
HYDROPHYLLACEAE |
| Phacelia denticulata Osterhout |
HYDROPHYLLACEAE |
| Phacelia sericea (R. Graham) A. Gray ssp sericea |
HYDROPHYLLACEAE |
| Philadelphus microphyllus A. Gray |
HYDRANGEACEAE |
| Phragmites australis (Cavanilles) Trinius ex Steudel |
POACEAE |
| Phyla cuneifolia (Torrey) Greene |
VERBENACEAE |
| Phyla lanceolata (Michaux) Greene |
VERBENACEAE |
| Physalis hederifolia A. Gray var cordifolia (A. Gray) Waterfall |
SOLANACEAE |
| Physalis hederifolia A. Gray var. comata (Rydberg) Waterfall |
SOLANACEAE |
| Physalis pumila Nuttall ssp hispida (Waterfall) Hinton |
SOLANACEAE |
| Physalis virginiana P. Miller |
SOLANACEAE |
| Physocarpus monogynus (Torrey) Coulter |
ROSACEAE |
| Physocarpus opulifolius (L.) Maximovicz |
ROSACEAE |
| Picradeniopsis oppositifolia (Nuttall) Rydberg |
ASTERACEAE |
| Pinus edulis Engelmann |
PINACEAE |
| Pinus ponderosa Douglas ex P. & C. Lawson ssp scopulorum (S. Watson) W. A. Weber |
PINACEAE |
| Piptatherum micranthum (Trinius & Ruprecht) Barkworth |
POACEAE |
| Plantago lanceolata L. |
PLANTAGINACEAE |
| Plantago major L. |
PLANTAGINACEAE |
| Plantago patagonica Jacquin |
PLANTAGINACEAE |
| Platanthera aquilonis Sheviak |
ORCHIDACEAE |
| Platanthera huronensis (Nuttall) Lindley |
ORCHIDACEAE |
| Platanthera purpurascens (Rydberg) Sheviak & W.F. Jennings |
ORCHIDACEAE |
| Poa agassizensis Boivin & D. Löve |
POACEAE |
| Poa bigelovii Vasey & Scribner |
POACEAE |
| Poa fendleriana (Steudel) Vasey |
POACEAE |
| Poa pratensis L. |
POACEAE |
| Poa reflexa Vasey & Scribner |
POACEAE |
| Poinsettia dentata (Michaux) Klotsch & Garcke |
EUPHORBIACEAE |
| Polanisia dodecandra (L.) De Candolle |
CAPPARACEAE |
| Polanisia jamesii (Torrey & Gray) Iltis |
CAPPARACEAE |
| Polemonium brandegei (A. Gray) Greene |
POLEMONIACEAE |
| Polemonium foliosissimum (A. Gray) A. Gray |
POLEMONIACEAE |
| Polygala alba Nuttall |
POLYGALACEAE |
| Polygonum arenastrum Boreau |
POLYGONACEAE |
| Polygonum ramosissimum Michaux |
POLYGONACEAE |
| Polypogon monspeliensis (L.) Desfontaines |
POACEAE |
| Populus acuminata Rydberg |
SALICACEAE |
| Populus deltoides H. Marshall ssp monilifera (Aiton) Eckenwalder |
SALICACEAE |
| Populus tremuloides Michaux |
SALICACEAE |
| Portulaca oleracea L. |
PORTULACACEAE |
| Potamogeton foliosus Rafinesque |
POTAMOGETONACEAE |
| Potentilla argentea L. |
ROSACEAE |
| Potentilla concinna Richardson var. concinna |
ROSACEAE |
| Potentilla gracilis Douglas |
ROSACEAE |
| Potentilla hippiana Lehmann |
ROSACEAE |
| Potentilla norvegica L. |
ROSACEAE |
| Potentilla pensylvanica L. |
ROSACEAE |
| Potentilla rivalis Nuttall ex Torrey & Gray |
ROSACEAE |
| Potentilla subviscosa Greene |
ROSACEAE |
| Proboscidea louisianica (P. Miller) Thellung |
MARTYNIACEAE |
| Prosopis glandulosa Torrey |
FABACEAE |
| Prunus americana H. Marshall |
ROSACEAE |
| Pseudocymopterus montanus (A. Gray) Coulter & Rose |
APIACEAE |
| Pseudognaphalium canescens (De Candolle) W. A. Weber |
ASTERACEAE |
| Pseudostellaria jamesiana (Torrey) Weber & Hartman |
ALSINACEAE |
| Psilochenia runcinata (James ex Torrey) Löve & Löve |
ASTERACEAE |
| Psoralidium argophyllum (Pursh) Rydberg |
FABACEAE |
| Psoralidium tenuiflorum (Pursh) Rydberg |
FABACEAE |
| Ptelea trifoliata L. |
RUTACEAE |
| Pterogonum alatum (Torrey) Gross |
POLYGONACEAE |
| Pterospora andromedea Nuttall |
MONOTROPACEAE |
| Puccinellia airoides Watson & Coulter |
POACEAE |
| Pulsatilla patens (L.) P. Miller ssp multifida (Pritzel) Zamels |
RANUNCULACEAE |
| Quercus gambelii Nuttall |
FAGACEAE |
| Quercus grisea Liebmann |
FAGACEAE |
| Quercus sp. |
FAGACEAE |
| Quercus turbinella Greene |
FAGACEAE |
| Quercus undulata Torrey |
FAGACEAE |
| Quincula lobata (Torrey) Rafinesque |
SOLANACEAE |
| Ranunculus cardiophyllus Hooker |
RANUNCULACEAE |
| Ranunculus inamoenus Greene |
RANUNCULACEAE |
| Ranunculus macauleyi A. Gray |
RANUNCULACEAE |
| Ranunculus macounii Britton |
RANUNCULACEAE |
| Ratibida columnifera (Nuttall) Wooton & Standley |
ASTERACEAE |
| Ratibida tagetes (James) Barnhart |
ASTERACEAE |
| Rhodiola integrifolia Rafinesque |
CRASSULACEAE |
| Rhus aromatica Aiton ssp pilosissima (Engelmann) W. A. Weber |
ANACARDIACEAE |
| Rhus aromatica Aiton ssp trilobata (Nuttall ex Torrey & Gray) W. A. Weber |
ANACARDIACEAE |
| Ribes aureum Pursh |
GROSSULARIACEAE |
| Ribes cereum Douglas |
GROSSULARIACEAE |
| Ribes leptanthum A. Gray |
GROSSULARIACEAE |
| Ribes wolfii Rothrock |
GROSSULARIACEAE |
| Robinia neomexicana A. Gray |
FABACEAE |
| Rosa arkansana T. C. Porter |
ROSACEAE |
| Rubus idaeus L. ssp melanolasius (Dieck) Focke |
ROSACEAE |
| Rumex altissimus Wood |
POLYGONACEAE |
| Rumex crispus L. |
POLYGONACEAE |
| Rumex triangulivalvis (Danser) Rechinger f. |
POLYGONACEAE |
| Sabina monosperma (Engelmann) Rydberg |
CUPRESSACEAE |
| Sabina scopulorum (Sargent) Rydberg |
CUPRESSACEAE |
| Sagittaria cuneata Sheldon |
ALISMATACEAE |
| Sagittaria graminea Michaux |
ALISMATACEAE |
| Salix alba x fragilis |
SALICACEAE |
| Salix amygdaloides Andersson |
SALICACEAE |
| Salix bebbiana Sargent |
SALICACEAE |
| Salix brachycarpa Nuttall |
SALICACEAE |
| Salix exigua Nuttall |
SALICACEAE |
| Salix exigua Nuttall ssp exigua |
SALICACEAE |
| Salix irrorata Andersson |
SALICACEAE |
| Salsola australis R. Brown |
CHENOPODIACEAE |
| Salvia reflexa Hornemann |
LAMIACEAE |
| Sambucus canadensis L. |
CAPRIFOLIACEAE |
| Sambucus coerulea Rafinesque |
CAPRIFOLIACEAE |
| Sambucus microbotrys Rydberg |
CAPRIFOLIACEAE |
| Sanguisorba minor Scopoli |
ROSACEAE |
| Sapindus drummondii Hooker & Arnott |
SAPINDACEAE |
| Sarcostemma crispum Bentham |
ASCLEPIADACEAE |
| Schedonnardus paniculatus (Nuttall) Trelease |
POACEAE |
| Schizachyrium scoparium (Michaux) Nash |
POACEAE |
| Schkuhria multiflora Hooker & Arnott |
ASTERACEAE |
| Schoenocrambe linearifolia (A. Gray) Rollins |
BRASSICACEAE |
| Schoenoplectus acutus (Mühlenberg) Löve & Löve |
CYPERACEAE |
| Schoenoplectus validus (Vahl) Löve & Löve |
CYPERACEAE |
| Scirpus microcarpus J. & K. Presl |
CYPERACEAE |
| Scirpus pallidus (Britton) Fernald |
CYPERACEAE |
| 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 flaccidus Lessing var. douglasii (DeCandolle) Turner & Barkley |
ASTERACEAE |
| Senecio integerrimus Nuttall |
ASTERACEAE |
| Senecio riddellii Torrey & Gray |
ASTERACEAE |
| Senecio wootonii Greene |
ASTERACEAE |
| Setaria glauca (L.) P. Beauvois |
POACEAE |
| Setaria leucopila (Scribner & Merrill) K. Schumann |
POACEAE |
| Sibbaldia procumbens L. |
ROSACEAE |
| Sidalcea candida A. Gray |
MALVACEAE |
| Sinapis arvensis L. |
BRASSICACEAE |
| Sisyrinchium montanum Greene |
IRIDACEAE |
| Solanum americanum P. Miller |
SOLANACEAE |
| Solanum elaeagnifolium Cavanilles |
SOLANACEAE |
| Solanum jamesii Torrey |
SOLANACEAE |
| Solanum rostratum Dunal |
SOLANACEAE |
| Solanum triflorum Nuttall |
SOLANACEAE |
| Solidago canadensis L. |
ASTERACEAE |
| Solidago gigantea Aiton |
ASTERACEAE |
| Solidago missouriensis Nuttall |
ASTERACEAE |
| Solidago velutina De Candolle |
ASTERACEAE |
| Solidago wrightii A. Gray var adenophora S. F. Blake |
ASTERACEAE |
| Sorghastrum avenaceum (Michaux) Nash |
POACEAE |
| Sphaeralcea angustifolia (Cavanilles) G. Don var cuspidata A. Gray |
MALVACEAE |
| Sphaeralcea coccinea (Pursh) Rydberg |
MALVACEAE |
| Sphenopholis obtusata (Michaux) Scribner |
POACEAE |
| Sporobolus airoides (Torrey) Torrey |
POACEAE |
| Sporobolus asper (Michaux) Kunth |
POACEAE |
| Sporobolus cryptandrus (Torrey) A. Gray |
POACEAE |
| Sporobolus nealleyi Vasey |
POACEAE |
| Stanleya pinnata (Pursh) Britton |
BRASSICACEAE |
| Stellaria longifolia Mühlenberg ex Willdenow |
ALSINACEAE |
| Stenactis strigosa (Mühlenberg ex Willdenow) De Candolle |
ASTERACEAE |
| Stephanomeria pauciflora (Torrey) A. Nelson |
ASTERACEAE |
| Stuckenia pectinata (L.) Börner |
POTAMOGETONACEAE |
| Symphoricarpos albus (L.) S. F. Blake |
CAPRIFOLIACEAE |
| Symphoricarpos occidentalis Hooker |
CAPRIFOLIACEAE |
| Symphoricarpos rotundifolius A. Gray |
CAPRIFOLIACEAE |
| Talinum parviflorum Nuttall ex Torrey & Gray |
PORTULACACEAE |
| Tamarix ramosissima Ledebour |
TAMARICACEAE |
| Taraxacum officinale G. H. Weber ex Wiggers |
ASTERACEAE |
| Taraxacum ovinum Greene |
ASTERACEAE |
| Teloxys graveolens (Willdenow) W. A. Weber |
CHENOPODIACEAE |
| Tetraneuris acaulis (Pursh) Greene |
ASTERACEAE |
| Tetraneuris scaposa (De Candolle) Greene |
ASTERACEAE |
| Tetraneuris scaposa (De Candolle) Greene var scaposa |
ASTERACEAE |
| Teucrium laciniatum Torrey |
LAMIACEAE |
| Thalictrum dasycarpum Fischer & Ave-Lallemant |
THALICTRACEAE |
| Thalictrum fendleri Engelmann ex A. Gray |
THALICTRACEAE |
| Thelesperma filifolium (Hooker) A. Gray var intermedium (Rydberg) Shinners |
ASTERACEAE |
| Thelesperma megapotamicum (Sprengel) Kuntze |
ASTERACEAE |
| Thelesperma subnudum A. Gray |
ASTERACEAE |
| Thelypodium wrightii A. Gray ssp oklahomensis Al-Shehbaz |
BRASSICACEAE |
| Thermopsis divaricarpa A. Nelson |
FABACEAE |
| Thermopsis rhombifolia (Nuttall ex Pursh) Richardson |
FABACEAE |
| Thlaspi arvense L. |
BRASSICACEAE |
| Thymophylla aurea (A. Gray) Greene |
ASTERACEAE |
| Townsendia eximia A. Gray |
ASTERACEAE |
| Townsendia exscapa (Richardson) T. C. Porter |
ASTERACEAE |
| Toxicodendron rydbergii (Small ex Rydberg) Greene |
ANACARDIACEAE |
| Tradescantia occidentalis (Britton) Smyth var scopulorum (Rose) Anderson & Woodson |
COMMELINACEAE |
| Tragia ramosa (Müller-Argoviensis in De Candolle) Torrey |
EUPHORBIACEAE |
| Tragopogon dubius Scopoli ssp major (Jacquin) Vollmann |
ASTERACEAE |
| Tribulus terrestris L. |
ZYGOPHYLLACEAE |
| Tridens muticus (Torrey) Nash var elongatus (Buckley) Shinners |
POACEAE |
| Trifolium attenuatum Greene |
FABACEAE |
| Triglochin palustris L. |
JUNCAGINACEAE |
| Triplasis purpurea (Walter) Chapman |
POACEAE |
| Tripterocalyx micranthus (Torrey) Hooker |
NYCTAGINACEAE |
| Triticum aestivum L. |
POACEAE |
| Typha angustifolia L. |
TYPHACEAE |
| Typha domingensis Persoon |
TYPHACEAE |
| Typha latifolia L. |
TYPHACEAE |
| Urtica gracilis Aiton ssp gracilis |
URTICACEAE |
| Valeriana edulis Nuttall |
VALERIANACEAE |
| Verbascum thapsus L. |
SCROPHULARIACEAE |
| Verbena bracteata Lagasca & Rodriguez |
VERBENACEAE |
| Verbena hastata L. |
VERBENACEAE |
| Verbena macdougalii Heller |
VERBENACEAE |
| Verbena plicata Greene |
VERBENACEAE |
| Verbena stricta Ventenat |
VERBENACEAE |
| Veronica americana Schweinitz ex Bentham |
SCROPHULARIACEAE |
| Veronica catenata Pennell |
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 americana Mühlenberg var minor Hooker |
FABACEAE |
| Vicia americana Mühlenberg ex Willdenow var americana |
FABACEAE |
| Vicia ludoviciana Nuttall var texana (Torrey & Gray) Shinners |
FABACEAE |
| Viola macloskeyi Lloyd ssp pallens (Banks ex De Candolle) M. S. Baker |
VIOLACEAE |
| Viola nuttallii Pursh |
VIOLACEAE |
| Viola pedatifida G. Don |
VIOLACEAE |
| Viola rydbergii Greene |
VIOLACEAE |
| Viola scopulorum (A. Gray) Greene |
VIOLACEAE |
| Viola sororia Willdenow |
VIOLACEAE |
| Viola sororia Willdenow var affinis (Le_Conte) McKinney |
VIOLACEAE |
| Virgulaster ascendens (Lindley ex Hooker) Semple |
ASTERACEAE |
| Virgulus ericoides (L.) Reveal & Keener |
ASTERACEAE |
| Virgulus falcatus (Lindley) Reveal & Keener |
ASTERACEAE |
| Virgulus fendleri (A. Gray) Reveal & Keener |
ASTERACEAE |
| Virgulus oblongifolius (Nuttall) Reveal & Keener |
ASTERACEAE |
| Vitis acerifolia Rafinesque |
VITACEAE |
| Vulpia octoflora (Walter) Rydberg |
POACEAE |
| Woodsia neomexicana Windham |
DRYOPTERIDACEAE |
| Woodsia oregana D.C. Eaton ssp cathcartiana (Robbinson) Windham |
DRYOPTERIDACEAE |
| Woodsia plummerae Lemmon |
DRYOPTERIDACEAE |
| Xanthium strumarium L. |
ASTERACEAE |
| Ximenesia encelioides Cavanilles |
ASTERACEAE |
| Yucca glauca Nuttall in Fraser |
AGAVACEAE |
| Zannichellia palustris L. |
ZANNICHELLIACEAE |
| Zinnia grandiflora Nuttall |
ASTERACEAE |
