535 Records
| Citation | Family Name |
| Abronia fragrans Nuttall ex Hooker |
NYCTAGINACEAE |
| Achnatherum hymenoides (Roemer & Schultes) Barkworth |
POACEAE |
| Acosta diffusa (Lamarck) Sojak |
ASTERACEAE |
| Acrolasia albicaulis (Douglas ex Hooker) Rydberg |
LOASACEAE |
| Acroptilon repens (L.) De Candolle |
ASTERACEAE |
| Agalinis tenuifolia (M. Vahl) Rafinesque |
SCROPHULARIACEAE |
| Agoseris glauca (Pursh) Rafinesque var laciniata (D. C. Eaton) Smiley |
ASTERACEAE |
| Agrostis gigantea Roth |
POACEAE |
| Agrostis scabra Willdenow |
POACEAE |
| Aletes nuttallii (A. Gray) W. A. Weber |
APIACEAE |
| Aletes tenuifolius (Nuttall ex Torrey & Gray) W. A. Weber |
APIACEAE |
| Aliciella pinnatifida (Nuttall ex A. Gray) J.M. Porter |
POLEMONIACEAE |
| Allium rubrum Osterhout |
ALLIACEAE |
| Allium textile Nelson & Macbride |
ALLIACEAE |
| Alnus incana (L.) Moench ssp tenuifolia (Nuttall) Breitung |
BETULACEAE |
| Alopecurus arundinaceus Poir. |
POACEAE |
| Alyssum desertorum Stapf |
BRASSICACEAE |
| Amaranthus arenicola I. M. Johnston |
AMARANTHACEAE |
| Ambrosia acanthicarpa Hooker |
ASTERACEAE |
| Ambrosia artemisiifolia L. var elatior (L.) Descourtils |
ASTERACEAE |
| Ambrosia psilostachya De Candolle var coronopifolia (Torrey & Gray) Farwell |
ASTERACEAE |
| Ambrosia tomentosa Nuttall |
ASTERACEAE |
| Amelanchier alnifolia Nuttall |
ROSACEAE |
| Ammannia robusta Heer & Regel |
LYTHRACEAE |
| Amorpha fruticosa L. |
FABACEAE |
| Andropogon hallii Hackel |
POACEAE |
| Androsace occidentalis Pursh |
PRIMULACEAE |
| Anemonidium canadense (L.) Löve & Löve |
RANUNCULACEAE |
| Anemopsis californica Hooker |
SAURURACEAE |
| Anisantha tectorum (L.) Nevski |
POACEAE |
| Antennaria parvifolia Nuttall |
ASTERACEAE |
| Aphyllon fasciculatum (Nuttall) Torrey & Gray |
OROBANCHACEAE |
| Apocynum cannabinum L. |
APOCYNACEAE |
| Arctium minus (J. Hill) Bernhardi |
ASTERACEAE |
| Argemone hispida A. Gray |
PAPAVERACEAE |
| Argemone polyanthemos (Fedde) G. Ownbey |
PAPAVERACEAE |
| Aristida purpurea Nuttall |
POACEAE |
| Artemisia absinthium L. |
ASTERACEAE |
| Artemisia frigida Willdenow |
ASTERACEAE |
| Artemisia ludoviciana Nuttall ssp incompta (Nuttall) Keck |
ASTERACEAE |
| Artemisia ludoviciana Nuttall ssp ludoviciana |
ASTERACEAE |
| Asclepias arenaria Torrey |
ASCLEPIADACEAE |
| Asclepias engelmanniana Woodson |
ASCLEPIADACEAE |
| Asclepias incarnata L. |
ASCLEPIADACEAE |
| Asclepias pumila (A. Gray) Vail |
ASCLEPIADACEAE |
| Asclepias speciosa Torrey |
ASCLEPIADACEAE |
| Asclepias viridiflora Rafinesque |
ASCLEPIADACEAE |
| Aster laevis L. |
ASTERACEAE |
| Aster laevis L. var geyeri A. Gray |
ASTERACEAE |
| Aster lanceolatus Willdenow ssp hesperius (A. Gray) Semple & Chmielewski |
ASTERACEAE |
| Astragalus adsurgens Pallas var robustior Hooker |
FABACEAE |
| Astragalus agrestis Douglas ex G. Don |
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 gracilis Nuttall |
FABACEAE |
| Astragalus kentrophyta A. Gray ssp kentrophyta |
FABACEAE |
| Astragalus lotiflorus Hooker |
FABACEAE |
| Astragalus missouriensis Nuttall |
FABACEAE |
| Astragalus mollissimus Torrey |
FABACEAE |
| Astragalus mollissimus Torrey var mollissimus |
FABACEAE |
| Astragalus pectinatus (Hooker) Douglas in Hooker |
FABACEAE |
| Astragalus spatulatus Sheldon |
FABACEAE |
| Astragalus tenellus Pursh |
FABACEAE |
| Atriplex canescens (Pursh) Nuttall |
CHENOPODIACEAE |
| Atriplex gardneri (Moquin) Standley |
CHENOPODIACEAE |
| Atriplex heterosperma Bunge |
CHENOPODIACEAE |
| Atriplex patula L. |
CHENOPODIACEAE |
| Atriplex rosea L. |
CHENOPODIACEAE |
| Bassia sieversiana (Pallas) W. A. Weber |
CHENOPODIACEAE |
| Batrachium circinatum (Sibthorp) E. Fries ssp subrigidum (Drew) Löve & Löve |
RANUNCULACEAE |
| Batrachium sp. |
RANUNCULACEAE |
| Berula erecta (Hudson) Coville |
APIACEAE |
| Betula fontinalis Sargent |
BETULACEAE |
| Bidens cernua L. |
ASTERACEAE |
| Bidens comosa (A. Gray) Wiegand |
ASTERACEAE |
| Bidens frondosa L. |
ASTERACEAE |
| Boechera fendleri (S. Watson) W. A. Weber ssp spatifolia (Rydberg) W. A. Weber |
BRASSICACEAE |
| Bolboschoenus maritimus (L.) Palla ssp paludosus (A. Nelson) Löve & Löve |
CYPERACEAE |
| Bolophyta alpina Nuttall |
ASTERACEAE |
| Brachyactis ciliata Ledebour ssp angusta (Lindley) A. Jones |
ASTERACEAE |
| Brassica napus L. |
BRASSICACEAE |
| Breea arvensis (L.) Lessing |
ASTERACEAE |
| Brickellia eupatorioides (L.) Shinners |
ASTERACEAE |
| Bromopsis inermis (Leysser) Holub |
POACEAE |
| Bromus japonicus Thunberg |
POACEAE |
| Buchloë dactyloides (Nuttall) Engelmann |
POACEAE |
| Caesalpinia jamesii (Torrey & Gray) Fisher |
FABACEAE |
| Calamovilfa longifolia (Hooker) Scribner in Hackel |
POACEAE |
| Calylophus lavandulifolius (Torrey & Gray) Raven |
ONAGRACEAE |
| Calylophus serrulatus (Nuttall) Raven |
ONAGRACEAE |
| Calystegia sepium (L.) R. Brown ssp angulata Brummitt |
CONVOLVULACEAE |
| Cardaria chalepensis (L.) Handel-Mazzetti |
BRASSICACEAE |
| Carex aurea Nuttall |
CYPERACEAE |
| Carex brevior (Dewey) Mackenzie |
CYPERACEAE |
| Carex emoryi Dewey in Torrey |
CYPERACEAE |
| Carex filifolia Nuttall |
CYPERACEAE |
| Carex lanuginosa Michaux |
CYPERACEAE |
| Carex nebrascensis Dewey |
CYPERACEAE |
| Carex pensylvanica Lamarck ssp heliophila (Mackenzie) W. A. Weber |
CYPERACEAE |
| Carex praegracilis F. Boott |
CYPERACEAE |
| Carex rossii F. Boott in Hooker |
CYPERACEAE |
| Carex sartwellii Dewey |
CYPERACEAE |
| Carex simulata Mackenzie |
CYPERACEAE |
| Carex stenophylla Wahlenberg ssp eleocharis (L. H. Bailey) Hultén |
CYPERACEAE |
| Castilleja sessiliflora Pursh |
SCROPHULARIACEAE |
| Catabrosa aquatica (L.) P. Beauvois |
POACEAE |
| Cenchrus longispinus (Hackel in Kneucker) Fernald |
POACEAE |
| Centaurium pulchellum (Swartz) Druce |
GENTIANACEAE |
| Cerasus pumila (L.) Michaux ssp besseyi (L. H. Bailey) W. A. Weber |
ROSACEAE |
| Cercocarpus montanus Rafinesque |
ROSACEAE |
| Chamaesyce fendleri (Torrey & Gray) Small |
EUPHORBIACEAE |
| Chamaesyce geyeri (Engelmann) Small |
EUPHORBIACEAE |
| Chamaesyce glyptosperma (Engelmann) Small |
EUPHORBIACEAE |
| Chamaesyce missurica (Rafinesque) Shinners |
EUPHORBIACEAE |
| Chamaesyce serpens (Humboldt, Bonpland, & Kunth) Small |
EUPHORBIACEAE |
| Chamaesyce serpyllifolia (Persoon) Small |
EUPHORBIACEAE |
| Cheilanthes féei T. Moore |
PTERIDACEAE |
| Chenopodium album L. |
CHENOPODIACEAE |
| Chenopodium atrovirens Rydberg |
CHENOPODIACEAE |
| Chenopodium berlandieri Moquin |
CHENOPODIACEAE |
| Chenopodium cycloides A. Nelson |
CHENOPODIACEAE |
| Chenopodium desiccatum A. Nelson |
CHENOPODIACEAE |
| Chenopodium fremontii S. Watson |
CHENOPODIACEAE |
| Chenopodium glaucum L. |
CHENOPODIACEAE |
| Chenopodium incanum (S. Watson) Heller |
CHENOPODIACEAE |
| Chenopodium leptophyllum (Nuttall ex Moquin) S. Watson |
CHENOPODIACEAE |
| Chenopodium pratericola Rydberg |
CHENOPODIACEAE |
| Chenopodium rubrum L. |
CHENOPODIACEAE |
| Chenopodium strictum Roth |
CHENOPODIACEAE |
| Chenopodium watsonii A. Nelson |
CHENOPODIACEAE |
| Chloris virgata Swartz |
POACEAE |
| Chondrosum gracile Humboldt, Bonpland, & Kunth |
POACEAE |
| Chondrosum hirsutum (Lagasca) Sweet |
POACEAE |
| Chondrosum prostratum (Lagasca) Sweet |
POACEAE |
| Chorispora tenella (Pallas) De Candolle |
BRASSICACEAE |
| Chrysothamnus nauseosus (Pallas ex Pursh) Britton ssp graveolens (Nuttall) Piper |
ASTERACEAE |
| Chrysothamnus nauseosus (Pallas ex Pursh) Britton ssp nauseosus |
ASTERACEAE |
| Cicuta douglasii (De Candolle) Coulter & Rose |
APIACEAE |
| Cirsium canescens Nuttall |
ASTERACEAE |
| Cirsium flodmanii (Rydberg) Arthur |
ASTERACEAE |
| Cirsium ochrocentrum A. Gray |
ASTERACEAE |
| Clematis ligusticifolia Nuttall ex Torrey & Gray |
RANUNCULACEAE |
| Cleome serrulata Pursh |
CAPPARACEAE |
| Collomia linearis Nuttall |
POLEMONIACEAE |
| Conringia orientalis (L.) Dumont de Cours |
BRASSICACEAE |
| Conyza canadensis (L.) Cronquist |
ASTERACEAE |
| Corispermum americanum (Nuttall) Nuttall |
CHENOPODIACEAE |
| Corispermum hyssopifolium L. |
CHENOPODIACEAE |
| 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 |
| Cryptantha fendleri (A. Gray) Greene |
BORAGINACEAE |
| Cryptantha minima Rydberg |
BORAGINACEAE |
| Cyclachaena xanthifolia (Nuttall) Fresenius |
ASTERACEAE |
| Cycloloma atriplicifolium (Sprengel) Coulter |
CHENOPODIACEAE |
| Cymopterus acaulis (Pursh) Rafinesque |
APIACEAE |
| Cymopterus montanus Torrey & Gray |
APIACEAE |
| Cyperus acuminatus Torrey & Hooker |
CYPERACEAE |
| Cyperus aristatus Rottboel |
CYPERACEAE |
| Dalea candida Willdenow var oligophylla (Torrey) Shinners |
FABACEAE |
| Dalea cylindriceps Barneby |
FABACEAE |
| Dalea purpurea Ventenat |
FABACEAE |
| Dalea villosa Sprengel |
FABACEAE |
| Delphinium carolinianum Walter ssp virescens (Nuttall) R. Brooks |
HELLEBORACEAE |
| Delphinium geyeri Greene |
HELLEBORACEAE |
| Descurainia incisa (Engelmann ex A. Gray) Britton subsp. viscosa (Rydberg) Rollins |
BRASSICACEAE |
| Descurainia pinnata (Walter) Britton |
BRASSICACEAE |
| Descurainia pinnata (Walter) Britton subsp. halictorum (Cockerell) Detling |
BRASSICACEAE |
| Descurainia sophia (L.) Webb ex Prantl |
BRASSICACEAE |
| Diplachne fascicularis (Lamarck) P. Beauvois |
POACEAE |
| Distichlis stricta (Torrey) Rydberg |
POACEAE |
| Draba reptans (Lamarck) Fernald |
BRASSICACEAE |
| Dracocephalum parviflorum Nuttall |
LAMIACEAE |
| Drymocallis fissa (Nuttall) Rydberg |
ROSACEAE |
| Echinocereus viridiflorus Engelmann |
CACTACEAE |
| Echinochloa crus-galli (L.) P. Beauvois |
POACEAE |
| Elatine triandra Schkuhr |
ELATINACEAE |
| Eleocharis acicularis (L.) Roemer & Schultes |
CYPERACEAE |
| Eleocharis palustris (L.) Roemer & Schultes |
CYPERACEAE |
| Eleocharis parvula (Roemer & Schultes) Link var anachaeta (Torrey) Svenson |
CYPERACEAE |
| Eleocharis quinqueflora (F. X. Hartman) Schwartz |
CYPERACEAE |
| Ellisia nyctelea (L.) L. |
HYDROPHYLLACEAE |
| Elymus canadensis L. |
POACEAE |
| Elymus lanceolatus (Scribner & Smith) Gould |
POACEAE |
| Elymus longifolius (J. G. Smith) Gould |
POACEAE |
| Elymus macounii Vasey |
POACEAE |
| Elymus trachycaulus (Link) Gould |
POACEAE |
| Epilobium ciliatum Rafinesque |
ONAGRACEAE |
| Epilobium leptophyllum Rafinesque |
ONAGRACEAE |
| Eragrostis cilianensis (Allioni) F. T. Hubbard |
POACEAE |
| Eragrostis diffusa Buckley |
POACEAE |
| Eragrostis hypnoides (Lamarck) Britton, Sterns, & Poggenberg |
POACEAE |
| Eragrostis trichodes (Nuttall) Wood |
POACEAE |
| Eremogone hookeri (Nuttall ex Torrey & Gray) W. A. Weber |
ALSINACEAE |
| Eremogone hookeri (Nuttall ex Torrey & Gray) W. A. Weber ssp hookeri |
ALSINACEAE |
| Erigeron bellidiastrum Nuttall |
ASTERACEAE |
| Erigeron canus A. Gray |
ASTERACEAE |
| Erigeron compositus Pursh |
ASTERACEAE |
| Erigeron flagellaris A. Gray |
ASTERACEAE |
| Erigeron ochroleucus Nuttall var scribneri (Canby ex Rydb.) Cronquist |
ASTERACEAE |
| Erigeron pumilus Nuttall |
ASTERACEAE |
| Eriogonum annuum Nuttall |
POLYGONACEAE |
| Eriogonum effusum Nuttall |
POLYGONACEAE |
| Eriogonum flavum Nuttall subsp. chloranthum (Greene) S. Stokes |
POLYGONACEAE |
| Eriogonum pauciflorum Pursh |
POLYGONACEAE |
| Eriogonum pauciflorum Pursh var gnaphalodes (Bentham in Hooker) Reveal |
POLYGONACEAE |
| Erysimum asperum (Nuttall) De Candolle |
BRASSICACEAE |
| Erysimum cheiranthoides L. ssp altum Ahti |
BRASSICACEAE |
| Eupatorium maculatum L. subsp. bruneri (A. Gray) G. W. Douglas |
ASTERACEAE |
| Euploca convolvulacea Nuttall ssp convolvulacea |
BORAGINACEAE |
| Eustoma grandiflorum (Rafinesque) Shinners |
GENTIANACEAE |
| Evax prolifera Nuttall ex De Candolle |
ASTERACEAE |
| Evolvulus nuttallianus Schultes |
CONVOLVULACEAE |
| Gaura coccinea Nuttall ex Pursh |
ONAGRACEAE |
| Gaura mollis James |
ONAGRACEAE |
| Gaura neomexicana Wooton ssp coloradensis (Rydberg) Raven & Gregory |
ONAGRACEAE |
| Geranium caespitosum James ex Torrey |
GERANIACEAE |
| Glandularia bipinnatifida (Nuttall) Nuttall |
VERBENACEAE |
| Glaux maritima L. var angustifolia Boivin |
PRIMULACEAE |
| Glyceria striata (Lamarck) A. S. Hitchcock var stricta (Scribner) Fernald |
POACEAE |
| Glycyrrhiza lepidota Pursh |
FABACEAE |
| Gnaphalium palustre Nuttall |
ASTERACEAE |
| Gnaphalium uliginosum L. |
ASTERACEAE |
| Grammica indecora (Choisy) W. A. Weber |
CUSCUTACEAE |
| Grammica indecora (Choisy) W. A. Weber var neuropetala (Engelmann) W. A. Weber |
CUSCUTACEAE |
| Grindelia squarrosa (Pursh) Dunal var serrulata (Rydberg) Steyermark |
ASTERACEAE |
| Gutierrezia sarothrae (Pursh) Britton & Rusby |
ASTERACEAE |
| Halerpestes cymbalaria (Pursh) Greene ssp saximontana (Fernald) Moldenke |
RANUNCULACEAE |
| Hecatonia scelerata (L.) Fourreau |
RANUNCULACEAE |
| Hedeoma drummondii Bentham |
LAMIACEAE |
| Hedeoma hispidum Pursh |
LAMIACEAE |
| Helianthus annuus L. |
ASTERACEAE |
| Helianthus petiolaris Nuttall |
ASTERACEAE |
| Helianthus pumilus Nuttall |
ASTERACEAE |
| Heracleum sphondylium L. ssp montanum (Schleicher ex Gaudin) Briquet in Schinz & Thellung |
APIACEAE |
| Hesperostipa comata (Trinius & Ruprecht) Barkworth |
POACEAE |
| Heteranthera limosa (Swartz) Willdenow |
PONTEDERIACEAE |
| Heterotheca canescens (De Candolle) Shinners |
ASTERACEAE |
| Heterotheca villosa (Pursh) Shinners |
ASTERACEAE |
| Hibiscus trionum L. |
MALVACEAE |
| Hippochaete laevigata (A. Braun) Farwell |
EQUISETACEAE |
| Hymenopappus filifolius Hooker var cinereus (Rydberg) I. M. Johnston |
ASTERACEAE |
| Hymenopappus filifolius Hooker var parvulus (Greene) B. Turner |
ASTERACEAE |
| Hymenopappus filifolius Hooker var polycephalus (Osterhout) B. Turner |
ASTERACEAE |
| Hymenopappus tenuifolius Pursh |
ASTERACEAE |
| Ipomoea leptophylla Torrey |
CONVOLVULACEAE |
| Ipomopsis congesta (Hooker) V. Grant |
POLEMONIACEAE |
| Ipomopsis laxiflora (Coulter) V. Grant |
POLEMONIACEAE |
| Ipomopsis longiflora (Torrey) V. Grant |
POLEMONIACEAE |
| Ipomopsis spicata (Nuttall) V. Grant |
POLEMONIACEAE |
| Iva axillaris Pursh |
ASTERACEAE |
| Juncus arcticus Willdenow ssp ater (Rydberg) Hultén |
JUNCACEAE |
| Juncus compressus Jacquin |
JUNCACEAE |
| Juncus dudleyi Wiegand |
JUNCACEAE |
| Juncus interior Wiegand |
JUNCACEAE |
| Juncus longistylis Torrey |
JUNCACEAE |
| Juncus nodosus L. |
JUNCACEAE |
| Juncus torreyi Coville |
JUNCACEAE |
| Koeleria macrantha (Ledebour) Schultes |
POACEAE |
| Krascheninnikovia lanata (Pursh) Meeuse & Smit |
CHENOPODIACEAE |
| Lactuca ludoviciana (Nuttall) Riddell |
ASTERACEAE |
| Lactuca tatarica (L.) C. A. Meyer ssp pulchella (Pursh) Stebbins |
ASTERACEAE |
| Lappula marginata (Bieberstein) Guerke |
BORAGINACEAE |
| Lappula redowskii (Hornemann) Greene |
BORAGINACEAE |
| Lathyrus polymorphus Nuttall |
FABACEAE |
| Leersia oryzoides (L.) Swartz |
POACEAE |
| Lemna turionifera Landolt |
LEMNACEAE |
| Leonurus cardiaca L. |
LAMIACEAE |
| Lepidium densiflorum Schrader |
BRASSICACEAE |
| Lepidium perfoliatum L. |
BRASSICACEAE |
| Leptodactylon caespitosum Nuttall |
POLEMONIACEAE |
| Leptodactylon pungens (Torrey) Rydberg |
POLEMONIACEAE |
| Lesquerella alpina (Nuttall ex Torrey & Gray) S. Watson |
BRASSICACEAE |
| Lesquerella arenosa (Richardson) Rydberg var argillosa Rollins & Shaw |
BRASSICACEAE |
| Lesquerella ludoviciana (Nuttall) S. Watson |
BRASSICACEAE |
| Liatris ligulistylis (A. Nelson) K. Schumann |
ASTERACEAE |
| Liatris punctata Hooker |
ASTERACEAE |
| Limosella aquatica L. |
SCROPHULARIACEAE |
| Lithospermum incisum Lehmann |
BORAGINACEAE |
| Lobelia siphilitica L. var ludoviciana A. De Candolle |
CAMPANULACEAE |
| Lupinus argenteus Pursh |
FABACEAE |
| Lupinus pusillus Pursh |
FABACEAE |
| Lupinus pusillus Pursh ssp pusillus |
FABACEAE |
| Lycopus americanus Mühlenberg ex W. Barton |
LAMIACEAE |
| Lycopus asper Greene |
LAMIACEAE |
| Lygodesmia juncea (Pursh) D. Don |
ASTERACEAE |
| Lysimachia ciliata L. |
PRIMULACEAE |
| Machaeranthera bigelovii (A. Gray) Greene |
ASTERACEAE |
| Machaeranthera canescens (Pursh) A. Gray |
ASTERACEAE |
| Machaeranthera pinnatifida (Hooker) Shinners |
ASTERACEAE |
| Machaeranthera pinnatifida (Hooker) Shinners var. pinnatifida |
ASTERACEAE |
| Machaeranthera tanacetifolia (Humboldt, Bonpland, & Kunth) Nees |
ASTERACEAE |
| Maianthemum stellatum (L.) Link |
CONVALLARIACEAE |
| Malva neglecta Wallroth |
MALVACEAE |
| Mariscus schweinitzii (Torrey) Koyama |
CYPERACEAE |
| Marsilea vestita Hooker & Greville |
MARSILEACEAE |
| Melilotus albus Medicus |
FABACEAE |
| Melilotus officinale (L.) Pallas |
FABACEAE |
| Mentha arvensis L. |
LAMIACEAE |
| Mentha piperita L. |
LAMIACEAE |
| Mentha spicata L. |
LAMIACEAE |
| Mertensia lanceolata (Pursh) A. De Candolle |
BORAGINACEAE |
| Mesynium puberulum (Engelmann in A. Gray) W. A. Weber |
LINACEAE |
| Mesynium rigidum (Pursh) Löve & Löve |
LINACEAE |
| Microsteris gracilis (Douglas ex Hooker) Greene ssp humilis (Greene) V. Grant |
POLEMONIACEAE |
| Mimulus glabratus Humboldt, Bonpland, & Kunth |
SCROPHULARIACEAE |
| Monarda pectinata Nuttall |
LAMIACEAE |
| Monolepis nuttalliana (Schultes) Greene |
CHENOPODIACEAE |
| Monroa squarrosa (Nuttall) Torrey |
POACEAE |
| Muhlenbergia asperifolia (Nees & Meyen ex Trinius) Parodi |
POACEAE |
| Muhlenbergia pungens Thurber ex A. Gray |
POACEAE |
| Muhlenbergia racemosa (Michaux) Britton, Sterns, & Poggenberg |
POACEAE |
| Muhlenbergia torreyi (Kunth) A. S. Hitchcock ex Bush |
POACEAE |
| Musineon divaricatum (Pursh) Nuttal ex Torrey & Gray |
APIACEAE |
| Musineon divaricatum (Pursh) Rafinesque var divaricatum |
APIACEAE |
| Nassella viridula (Trinius) Barkworth |
POACEAE |
| Nepeta cataria L. |
LAMIACEAE |
| Nuttallia nuda (Pursh) Greene |
LOASACEAE |
| Oenothera albicaulis Pursh |
ONAGRACEAE |
| Oenothera caespitosa Nuttall ex Fraser ssp caespitosa |
ONAGRACEAE |
| Oenothera canescens Torrey & Frémont |
ONAGRACEAE |
| Oenothera coronopifolia Torrey & Gray |
ONAGRACEAE |
| Oenothera latifolia (Rydberg) Munz |
ONAGRACEAE |
| Oligoneuron rigidum (L.) Small |
ASTERACEAE |
| Oligosporus caudatus (Michaux) Poljakov |
ASTERACEAE |
| Oligosporus dracunculus (L.) Poljakov ssp glaucus (Pallas) Löve & Löve |
ASTERACEAE |
| Oligosporus filifolius (Torrey) Poljakov |
ASTERACEAE |
| Onopordum acanthium L. |
ASTERACEAE |
| Opuntia fragilis (Nuttall) Haworth |
CACTACEAE |
| Opuntia hybrid |
CACTACEAE |
| Opuntia macrorhiza Engelmann |
CACTACEAE |
| Opuntia polyacantha Haworth var. polyacantha |
CACTACEAE |
| Oreocarya cana A. Nelson |
BORAGINACEAE |
| Oreocarya celosioides Eastwood |
BORAGINACEAE |
| Oreocarya suffruticosa (Torrey) Greene |
BORAGINACEAE |
| Oreocarya thyrsiflora Greene |
BORAGINACEAE |
| Orobanche ludoviciana Nuttall |
OROBANCHACEAE |
| Orophaca sericea (Nuttall) Britton |
FABACEAE |
| Orophaca tridactylica (A. Gray) Rydberg |
FABACEAE |
| Orophaca triphylla Britton |
FABACEAE |
| Oxybaphus glaber S. Watson |
NYCTAGINACEAE |
| Oxybaphus hirsutus (Pursh) Sweet in De Candolle |
NYCTAGINACEAE |
| Oxybaphus linearis (Pursh) B. L. Robinson |
NYCTAGINACEAE |
| Oxytropis multiceps Nuttall |
FABACEAE |
| Oxytropis sericea Nuttall |
FABACEAE |
| Packera fendleri (A. Gray) Weber & Löve |
ASTERACEAE |
| Packera neomexicana (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 sphacelata (Nuttall ex Torrey) Cory |
ASTERACEAE |
| Panicum capillare L. |
POACEAE |
| Panicum virgatum L. |
POACEAE |
| Paronychia jamesii Torrey & Gray |
ALSINACEAE |
| Paronychia sessiliflora Nuttall |
ALSINACEAE |
| Pascopyrum smithii (Rydberg) Löve |
POACEAE |
| Pectis angustifolia Torrey |
ASTERACEAE |
| Pediomelum esculentum (Pursh) Rydberg |
FABACEAE |
| Pediomelum hypogaeum (Nuttall ex Torrey & Gray) Rydberg |
FABACEAE |
| Penstemon albidus Nuttall |
SCROPHULARIACEAE |
| Penstemon angustifolius Nuttall ex Pursh |
SCROPHULARIACEAE |
| Penstemon angustifolius Nuttall ex Pursh ssp caudatus (Heller) Keck |
SCROPHULARIACEAE |
| Penstemon eriantherus Pursh |
SCROPHULARIACEAE |
| Penstemon virgatus A. Gray ssp asa-grayi Crosswhite |
SCROPHULARIACEAE |
| Persicaria bicornis (Rafinesque) Nieuwland |
POLYGONACEAE |
| Persicaria coccinea (Mühlenberg ex Willdenow) Greene |
POLYGONACEAE |
| Persicaria lapathifolia (L.) S. Gray |
POLYGONACEAE |
| Persicaria maculata (L.) S. Gray |
POLYGONACEAE |
| Persicaria pensylvanica (L.) Gomez |
POLYGONACEAE |
| Phacelia alba Rydberg |
HYDROPHYLLACEAE |
| Phacelia hastata Douglas ex Lehmann |
HYDROPHYLLACEAE |
| Phlox andicola (Nuttall ex Torrey & Gray) E. Nelson |
POLEMONIACEAE |
| Phlox bryoides Nuttall |
POLEMONIACEAE |
| Phlox hoodii Richardson |
POLEMONIACEAE |
| Phyla cuneifolia (Torrey) Greene |
VERBENACEAE |
| 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 |
| Picradeniopsis oppositifolia (Nuttall) Rydberg |
ASTERACEAE |
| Pinus flexilis James |
PINACEAE |
| Piptatherum micranthum (Trinius & Ruprecht) Barkworth |
POACEAE |
| Plagiobothrys scouleri (Hooker & Arnott) I. M. Johnston |
BORAGINACEAE |
| Plagiobothrys scouleri (Hooker & Arnott) I. M. Johnston ssp penicillata (Greene) Löve |
BORAGINACEAE |
| Plantago eriopoda Torrey |
PLANTAGINACEAE |
| Plantago patagonica Jacquin |
PLANTAGINACEAE |
| Poa agassizensis Boivin & D. Löve |
POACEAE |
| Poa arida Vasey |
POACEAE |
| Poa compressa L. |
POACEAE |
| Poa nemoralis L. ssp interior (Rydberg) W. A. Weber |
POACEAE |
| Poa pratensis L. |
POACEAE |
| Podospermum laciniatum (L.) De Candolle |
ASTERACEAE |
| Polanisia dodecandra (L.) De Candolle |
CAPPARACEAE |
| Polanisia jamesii (Torrey & Gray) Iltis |
CAPPARACEAE |
| Polemonium foliosissimum (A. Gray) A. Gray |
POLEMONIACEAE |
| Polygonum arenastrum Boreau |
POLYGONACEAE |
| Polygonum ramosissimum Michaux |
POLYGONACEAE |
| Polypogon monspeliensis (L.) Desfontaines |
POACEAE |
| Populus angustifolia James |
SALICACEAE |
| Populus deltoides H. Marshall ssp monilifera (Aiton) Eckenwalder |
SALICACEAE |
| Portulaca oleracea L. |
PORTULACACEAE |
| Potamogeton diversifolius Rafinesque |
POTAMOGETONACEAE |
| Potamogeton foliosus Rafinesque |
POTAMOGETONACEAE |
| Potentilla effusa Douglas ex 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 |
| Pseudognaphalium stramineum (Humboldt, Bonpland & Kunth) W. A. Weber |
ASTERACEAE |
| Psilochenia occidentalis (Nutt.) Weber |
ASTERACEAE |
| Psilochenia runcinata (James ex Torrey) Löve & Löve |
ASTERACEAE |
| Psoralidium argophyllum (Pursh) Rydberg |
FABACEAE |
| Psoralidium digitatum (Nuttall) Rydberg |
FABACEAE |
| Psoralidium lanceolatum (Pursh) Rydberg |
FABACEAE |
| Psoralidium tenuiflorum (Pursh) Rydberg |
FABACEAE |
| Pterogonum alatum (Torrey) Gross |
POLYGONACEAE |
| Quincula lobata (Torrey) Rafinesque |
SOLANACEAE |
| Ranunculus macounii Britton |
RANUNCULACEAE |
| Rayjacksonia annua (Rydberg) R. L. Hartman & M. A. Lane |
ASTERACEAE |
| 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 |
| Rorippa palustris (L.) Besser |
BRASSICACEAE |
| Rorippa sinuata (Nuttall in Torrey & Gray) A. S. Hitchcock |
BRASSICACEAE |
| Rorippa teres (Michaux) Stuckey |
BRASSICACEAE |
| Rumex altissimus Wood |
POLYGONACEAE |
| Rumex crispus L. |
POLYGONACEAE |
| Rumex maritimus L. ssp fueginus (Philippi) Hultén |
POLYGONACEAE |
| Rumex stenophyllus Ledebour |
POLYGONACEAE |
| Rumex venosus Pursh |
POLYGONACEAE |
| Sabina scopulorum (Sargent) Rydberg |
CUPRESSACEAE |
| Sabina virginiana (L.) Antoine |
CUPRESSACEAE |
| Sagittaria brevirostra Mackenzie & Bush |
ALISMATACEAE |
| Sagittaria cuneata Sheldon |
ALISMATACEAE |
| Salix alba x fragilis |
SALICACEAE |
| Salix amygdaloides Andersson |
SALICACEAE |
| Salix exigua Nuttall ssp exigua |
SALICACEAE |
| Salix exigua Nuttall ssp interior (Rowlee) Cronquist |
SALICACEAE |
| Salix fragilis L. |
SALICACEAE |
| Salix lasiandra Bentham var caudata (Nuttall) Sudworth |
SALICACEAE |
| Salsola australis R. Brown |
CHENOPODIACEAE |
| Salsola collina Pallas |
CHENOPODIACEAE |
| Salvia reflexa Hornemann |
LAMIACEAE |
| Sambucus canadensis L. |
CAPRIFOLIACEAE |
| Schedonnardus paniculatus (Nuttall) Trelease |
POACEAE |
| Schoenoplectus acutus (Mühlenberg) Löve & Löve |
CYPERACEAE |
| Schoenoplectus pungens (M. Vahl) Palla |
CYPERACEAE |
| Schoenoplectus saximontanus (Fernald) Raynal |
CYPERACEAE |
| Schoenoplectus validus (Vahl) Löve & Löve |
CYPERACEAE |
| Scutellaria brittonii T. C. Porter |
LAMIACEAE |
| Scutellaria galericulata L. var epilobiifolia (Hamilton) Jordal |
LAMIACEAE |
| Secale cereale L. |
POACEAE |
| Senecio eremophilus Richardson ssp kingii (Rydberg) Douglas & R.-Douglas |
ASTERACEAE |
| Senecio spartioides Torrey & Gray |
ASTERACEAE |
| Setaria glauca (L.) P. Beauvois |
POACEAE |
| Setaria viridis (L.) P. Beauvois |
POACEAE |
| Shinnersoseris rostrata (A. Gray) Tomb |
ASTERACEAE |
| Sinapis arvensis L. |
BRASSICACEAE |
| Sisymbrium altissimum L. |
BRASSICACEAE |
| Sisyrinchium demissum Greene |
IRIDACEAE |
| Sisyrinchium idahoense Bicknell var occidentale (Bicknell) D. Henderson |
IRIDACEAE |
| Sisyrinchium montanum Greene |
IRIDACEAE |
| Solanum americanum P. Miller |
SOLANACEAE |
| Solanum physalifolium Rusby var nitidibaccatum (Bitter) Edmonds |
SOLANACEAE |
| Solidago canadensis L. |
ASTERACEAE |
| Solidago missouriensis Nuttall |
ASTERACEAE |
| Solidago mollis Bartling |
ASTERACEAE |
| Solidago velutina De Candolle |
ASTERACEAE |
| Sonchus asper (L.) J. Hill |
ASTERACEAE |
| Spartina gracilis Trinius |
POACEAE |
| Spartina pectinata Link |
POACEAE |
| Spergularia marina (L.) Grisebach |
ALSINACEAE |
| Spergularia media (L.) K. Presl |
ALSINACEAE |
| Sphaeralcea coccinea (Pursh) Rydberg |
MALVACEAE |
| Sphenopholis obtusata (Michaux) Scribner |
POACEAE |
| Sporobolus airoides (Torrey) Torrey |
POACEAE |
| Sporobolus cryptandrus (Torrey) A. Gray |
POACEAE |
| Stachys palustris L. ssp pilosa (Nuttall) Epling |
LAMIACEAE |
| Stenotus acaulis Nuttall |
ASTERACEAE |
| Stenotus armerioides Nuttall |
ASTERACEAE |
| Stephanomeria pauciflora (Torrey) A. Nelson |
ASTERACEAE |
| Stephanomeria runcinata Nuttall |
ASTERACEAE |
| Suaeda calceoliformis (Hooker) Moquin |
CHENOPODIACEAE |
| Suckleya suckleyana (Torrey) Rydberg |
CHENOPODIACEAE |
| Symphoricarpos occidentalis Hooker |
CAPRIFOLIACEAE |
| Talinum parviflorum Nuttall ex Torrey & Gray |
PORTULACACEAE |
| Tetradymia canescens De Candolle |
ASTERACEAE |
| Tetraneuris acaulis (Pursh) Greene |
ASTERACEAE |
| Teucrium canadense L. ssp occidentale (A. Gray) W. A. Weber |
LAMIACEAE |
| Thalictrum dasycarpum Fischer & Ave-Lallemant |
THALICTRACEAE |
| Thalictrum revolutum De Candolle |
THALICTRACEAE |
| Thelesperma filifolium (Hooker) A. Gray var intermedium (Rydberg) Shinners |
ASTERACEAE |
| Thelesperma megapotamicum (Sprengel) Kuntze |
ASTERACEAE |
| Thelypodium integrifolium (Nuttall) Endlicher |
BRASSICACEAE |
| Thermopsis rhombifolia (Nuttall ex Pursh) Richardson |
FABACEAE |
| Thlaspi arvense L. |
BRASSICACEAE |
| Tithymalus brachyceras (Engelmann) Small |
EUPHORBIACEAE |
| Townsendia exscapa (Richardson) T. C. Porter |
ASTERACEAE |
| Townsendia grandiflora Nuttall |
ASTERACEAE |
| Townsendia hookeri Beaman |
ASTERACEAE |
| Toxicoscordion venenosum (S. Watson) Rydberg |
MELANTHIACEAE |
| Tradescantia occidentalis (Britton) Smyth var scopulorum (Rose) Anderson & Woodson |
COMMELINACEAE |
| Tribulus terrestris L. |
ZYGOPHYLLACEAE |
| Trifolium dasyphyllum Torrey & Gray var anemophilum (Greene) J.S. Martin ex Iseley |
FABACEAE |
| Trifolium fragiferum L. |
FABACEAE |
| Triglochin maritima L. |
JUNCAGINACEAE |
| Trimorpha lonchophylla (Hooker) Nesom |
ASTERACEAE |
| Triplasis purpurea (Walter) Chapman |
POACEAE |
| Tripterocalyx micranthus (Torrey) Hooker |
NYCTAGINACEAE |
| Typha angustifolia L. |
TYPHACEAE |
| Verbena bracteata Lagasca & Rodriguez |
VERBENACEAE |
| Verbena hastata L. |
VERBENACEAE |
| Verbena stricta Ventenat |
VERBENACEAE |
| Veronica catenata Pennell |
SCROPHULARIACEAE |
| Veronica peregrina L. ssp xalapensis (Humboldt,_Bonpland, & Kunth) Pennell |
SCROPHULARIACEAE |
| Vexibia nuttalliana (B. Turner) W. A. Weber |
FABACEAE |
| Vicia americana Mühlenberg |
FABACEAE |
| Vicia americana Mühlenberg var minor Hooker |
FABACEAE |
| Viola nuttallii Pursh |
VIOLACEAE |
| Viola sororia Willdenow var. sororia |
VIOLACEAE |
| Virgulaster ascendens (Lindley ex Hooker) Semple |
ASTERACEAE |
| Virgulus ericoides (L.) Reveal & Keener |
ASTERACEAE |
| Virgulus falcatus (Lindley) Reveal & Keener |
ASTERACEAE |
| Vulpia octoflora (Walter) Rydberg |
POACEAE |
| Woodsia oregana D.C. Eaton ssp cathcartiana (Robbinson) Windham |
DRYOPTERIDACEAE |
| Xanthium strumarium L. |
ASTERACEAE |
| Ximenesia encelioides Cavanilles |
ASTERACEAE |
| Yucca glauca Nuttall in Fraser |
AGAVACEAE |
| Zannichellia palustris L. |
ZANNICHELLIACEAE |
