248 Records
| Citation | Family Name |
| Abronia fragrans Nuttall ex Hooker |
NYCTAGINACEAE |
| Achnatherum hymenoides (Roemer & Schultes) Barkworth |
POACEAE |
| Agaloma marginata (Pursh) Löve & Löve |
EUPHORBIACEAE |
| Aletes tenuifolius (Nuttall ex Torrey & Gray) W. A. Weber |
APIACEAE |
| Allium textile Nelson & Macbride |
ALLIACEAE |
| Amaranthus albus L. |
AMARANTHACEAE |
| Amaranthus arenicola I. M. Johnston |
AMARANTHACEAE |
| Amaranthus blitoides S. Watson |
AMARANTHACEAE |
| Ambrosia psilostachya De Candolle var coronopifolia (Torrey & Gray) Farwell |
ASTERACEAE |
| Ambrosia trifida L. |
ASTERACEAE |
| Andropogon hallii Hackel |
POACEAE |
| Anisantha tectorum (L.) Nevski |
POACEAE |
| Apocynum cannabinum L. |
APOCYNACEAE |
| Argemone polyanthemos (Fedde) G. Ownbey |
PAPAVERACEAE |
| Aristida purpurea Nuttall |
POACEAE |
| Artemisia frigida Willdenow |
ASTERACEAE |
| Artemisia ludoviciana Nuttall ssp ludoviciana |
ASTERACEAE |
| Asclepias arenaria Torrey |
ASCLEPIADACEAE |
| Asclepias incarnata L. |
ASCLEPIADACEAE |
| Asclepias speciosa Torrey |
ASCLEPIADACEAE |
| Asclepias viridiflora Rafinesque |
ASCLEPIADACEAE |
| Astragalus ceramicus Sheldon |
FABACEAE |
| Astragalus drummondii Douglas ex Hooker |
FABACEAE |
| Astragalus gracilis Nuttall |
FABACEAE |
| Astragalus lotiflorus Hooker |
FABACEAE |
| Astragalus missouriensis Nuttall |
FABACEAE |
| Astragalus plattensis Nuttall ex Torrey & Gray |
FABACEAE |
| Astragalus spatulatus Sheldon |
FABACEAE |
| Atriplex canescens (Pursh) Nuttall |
CHENOPODIACEAE |
| Azolla mexicana K. Presl |
SALVINIACEAE |
| Bouteloua curtipendula (Michaux) Torrey |
POACEAE |
| Brickellia eupatorioides (L.) Shinners |
ASTERACEAE |
| Brickellia grandiflora (Hooker) Nuttall |
ASTERACEAE |
| Bromus japonicus Thunberg |
POACEAE |
| Buchloë dactyloides (Nuttall) Engelmann |
POACEAE |
| Calamovilfa longifolia (Hooker) Scribner in Hackel |
POACEAE |
| Calylophus lavandulifolius (Torrey & Gray) Raven |
ONAGRACEAE |
| Calylophus serrulatus (Nuttall) Raven |
ONAGRACEAE |
| Cardaria draba (L.) Desvaux |
BRASSICACEAE |
| Carex emoryi Dewey in Torrey |
CYPERACEAE |
| Carex filifolia Nuttall |
CYPERACEAE |
| Carex nebrascensis Dewey |
CYPERACEAE |
| Carex pensylvanica Lamarck ssp heliophila (Mackenzie) W. A. Weber |
CYPERACEAE |
| Carex stenophylla Wahlenberg ssp eleocharis (L. H. Bailey) Hultén |
CYPERACEAE |
| Castilleja sessiliflora Pursh |
SCROPHULARIACEAE |
| Cenchrus longispinus (Hackel in Kneucker) Fernald |
POACEAE |
| Cerasus pumila (L.) Michaux ssp besseyi (L. H. Bailey) W. A. Weber |
ROSACEAE |
| Chamaesyce geyeri (Engelmann) Small |
EUPHORBIACEAE |
| Chamaesyce missurica (Rafinesque) Shinners |
EUPHORBIACEAE |
| Chenopodium simplex (Torrey) Rafinesque |
CHENOPODIACEAE |
| Chenopodium subglabrum (S. Watson) A. Nelson |
CHENOPODIACEAE |
| Chondrosum gracile Humboldt, Bonpland, & Kunth |
POACEAE |
| Chondrosum hirsutum (Lagasca) Sweet |
POACEAE |
| Chorispora tenella (Pallas) De Candolle |
BRASSICACEAE |
| Chrysothamnus nauseosus (Pallas ex Pursh) Britton ssp graveolens (Nuttall) Piper |
ASTERACEAE |
| Cirsium canescens Nuttall |
ASTERACEAE |
| Cirsium flodmanii (Rydberg) Arthur |
ASTERACEAE |
| Cirsium undulatum (Nuttall) Sprengel |
ASTERACEAE |
| Cleome serrulata Pursh |
CAPPARACEAE |
| Comandra umbellata (L.) Nuttall ssp pallida (A. De Candolle) Piehl |
SANTALACEAE |
| Conium maculatum L. |
APIACEAE |
| Conyza canadensis (L.) Cronquist |
ASTERACEAE |
| Critesion jubatum (L.) Nevski |
POACEAE |
| Croton texensis (Klotsch) Müller-Argoviensis in De Candolle |
EUPHORBIACEAE |
| Cryptantha minima Rydberg |
BORAGINACEAE |
| Cymopterus acaulis (Pursh) Rafinesque |
APIACEAE |
| Cymopterus montanus Torrey & Gray |
APIACEAE |
| Cyperus esculentus L. |
CYPERACEAE |
| Cyperus odoratus L. |
CYPERACEAE |
| Dalea candida Willdenow var oligophylla (Torrey) Shinners |
FABACEAE |
| Delphinium carolinianum Walter ssp virescens (Nuttall) R. Brooks |
HELLEBORACEAE |
| 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 |
| Dyssodia papposa (Ventenat) A. S. Hitchcock |
ASTERACEAE |
| Echinochloa crus-galli (L.) P. Beauvois |
POACEAE |
| Echinocystis lobata (Michaux) Torrey & Gray |
CUCURBITACEAE |
| Elaeagnus angustifolia L. |
ELAEAGNACEAE |
| Eleocharis elliptica Kunth var compressa (Sullivant) Drapalik & Mohlenbrock |
CYPERACEAE |
| Eleocharis palustris (L.) Roemer & Schultes |
CYPERACEAE |
| Eleocharis wolfii A. Gray |
CYPERACEAE |
| Eleocharis xyridiformis Fernald & Brackett |
CYPERACEAE |
| Ellisia nyctelea (L.) L. |
HYDROPHYLLACEAE |
| Elymus canadensis L. |
POACEAE |
| Elymus longifolius (J. G. Smith) Gould |
POACEAE |
| Elytrigia repens (L.) Nevski |
POACEAE |
| Eragrostis cilianensis (Allioni) F. T. Hubbard |
POACEAE |
| Eragrostis mexicana (Hornemann) Link ssp virescens (J. Presl in K. Presl) Koch & Sanchez |
POACEAE |
| Eragrostis pilosa (L.) P. Beauvois |
POACEAE |
| Eremogone hookeri (Nuttall ex Torrey & Gray) W. A. Weber ssp hookeri |
ALSINACEAE |
| Erigeron bellidiastrum Nuttall |
ASTERACEAE |
| Erigeron canus A. Gray |
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 var gnaphalodes (Bentham in Hooker) Reveal |
POLYGONACEAE |
| Erysimum asperum (Nuttall) De Candolle |
BRASSICACEAE |
| Eustoma grandiflorum (Rafinesque) Shinners |
GENTIANACEAE |
| Euthamia occidentalis Nuttall |
ASTERACEAE |
| Evolvulus nuttallianus Schultes |
CONVOLVULACEAE |
| Froelichia gracilis (Hooker) Moquin |
AMARANTHACEAE |
| Gaura coccinea Nuttall ex Pursh |
ONAGRACEAE |
| Gaura mollis James |
ONAGRACEAE |
| Glycyrrhiza lepidota Pursh |
FABACEAE |
| Grindelia squarrosa (Pursh) Dunal |
ASTERACEAE |
| Gutierrezia sarothrae (Pursh) Britton & Rusby |
ASTERACEAE |
| Hedeoma drummondii Bentham |
LAMIACEAE |
| Helianthus annuus L. |
ASTERACEAE |
| Helianthus petiolaris Nuttall |
ASTERACEAE |
| Hesperostipa comata (Trinius & Ruprecht) Barkworth |
POACEAE |
| Heterotheca canescens (De Candolle) Shinners |
ASTERACEAE |
| Heterotheca villosa (Pursh) Shinners |
ASTERACEAE |
| Hippochaete hyemalis (L.) Bruhin |
EQUISETACEAE |
| Hymenopappus tenuifolius Pursh |
ASTERACEAE |
| Ipomoea leptophylla Torrey |
CONVOLVULACEAE |
| Ipomopsis longiflora (Torrey) V. Grant |
POLEMONIACEAE |
| Juncus gerardii Loiseleur |
JUNCACEAE |
| Juncus torreyi Coville |
JUNCACEAE |
| Koeleria macrantha (Ledebour) Schultes |
POACEAE |
| Krascheninnikovia lanata (Pursh) Meeuse & Smit |
CHENOPODIACEAE |
| Lactuca serriola L. |
ASTERACEAE |
| Lactuca tatarica (L.) C. A. Meyer ssp pulchella (Pursh) Stebbins |
ASTERACEAE |
| Lappula redowskii (Hornemann) Greene |
BORAGINACEAE |
| Lathyrus polymorphus Nuttall ssp incanus (Small & Rydberg) C. L. Hitchcock |
FABACEAE |
| Leiostemon ambiguus (Torrey) Greene |
SCROPHULARIACEAE |
| Lepidium densiflorum Schrader |
BRASSICACEAE |
| Lesquerella alpina (Nuttall ex Torrey & Gray) S. Watson |
BRASSICACEAE |
| Lesquerella arenosa (Richardson) Rydberg var argillosa Rollins & Shaw |
BRASSICACEAE |
| Lesquerella ludoviciana (Nuttall) S. Watson |
BRASSICACEAE |
| Leucocrinum montanum Nuttall ex A. Gray |
LILIACEAE |
| Liatris punctata Hooker |
ASTERACEAE |
| Lithospermum incisum Lehmann |
BORAGINACEAE |
| Lupinus pusillus Pursh |
FABACEAE |
| Machaeranthera grindelioides (Nuttall) Shinners |
ASTERACEAE |
| Machaeranthera pinnatifida (Hooker) Shinners |
ASTERACEAE |
| Machaeranthera tanacetifolia (Humboldt, Bonpland, & Kunth) Nees |
ASTERACEAE |
| Mariscus schweinitzii (Torrey) Koyama |
CYPERACEAE |
| Marsilea vestita Hooker & Greville |
MARSILEACEAE |
| Mesynium puberulum (Engelmann in A. Gray) W. A. Weber |
LINACEAE |
| Mesynium rigidum (Pursh) Löve & Löve |
LINACEAE |
| Muhlenbergia asperifolia (Nees & Meyen ex Trinius) Parodi |
POACEAE |
| Muhlenbergia cuspidata (Torrey) Rydberg |
POACEAE |
| Muhlenbergia pungens Thurber ex A. Gray |
POACEAE |
| Muhlenbergia torreyi (Kunth) A. S. Hitchcock ex Bush |
POACEAE |
| Musineon divaricatum (Pursh) Rafinesque var divaricatum |
APIACEAE |
| Nepeta cataria L. |
LAMIACEAE |
| Nothocalais cuspidata (Pursh) Greene |
ASTERACEAE |
| Nuttallia decapetala (Pursh ex Sims) Greene |
LOASACEAE |
| Oenothera coronopifolia Torrey & Gray |
ONAGRACEAE |
| Oenothera latifolia (Rydberg) Munz |
ONAGRACEAE |
| Oenothera villosa Thunberg ssp strigosa (Rydberg) Dietrich & Raven |
ONAGRACEAE |
| Oligosporus caudatus (Michaux) Poljakov |
ASTERACEAE |
| Oligosporus dracunculus (L.) Poljakov ssp glaucus (Pallas) Löve & Löve |
ASTERACEAE |
| Oligosporus filifolius (Torrey) Poljakov |
ASTERACEAE |
| Opuntia fragilis (Nuttall) Haworth |
CACTACEAE |
| Opuntia macrorhiza Engelmann |
CACTACEAE |
| Oreocarya cana A. Nelson |
BORAGINACEAE |
| Oreocarya celosioides Eastwood |
BORAGINACEAE |
| Oreocarya thyrsiflora Greene |
BORAGINACEAE |
| Orophaca sericea (Nuttall) Britton |
FABACEAE |
| Oxybaphus glaber S. Watson |
NYCTAGINACEAE |
| Oxybaphus nyctagineus (Michaux) T. C. Porter in Porter & Coulter |
NYCTAGINACEAE |
| Oxytropis lambertii Pursh |
FABACEAE |
| Oxytropis sericea Nuttall |
FABACEAE |
| Packera cana (Hooker) 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 |
| Panicum miliaceum L. |
POACEAE |
| Panicum virgatum L. |
POACEAE |
| 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 |
| Pectis angustifolia Torrey |
ASTERACEAE |
| Penstemon albidus Nuttall |
SCROPHULARIACEAE |
| Penstemon angustifolius Nuttall ex Pursh |
SCROPHULARIACEAE |
| Persicaria coccinea (Mühlenberg ex Willdenow) Greene |
POLYGONACEAE |
| Persicaria lapathifolia (L.) S. Gray |
POLYGONACEAE |
| Persicaria maculata (L.) S. Gray |
POLYGONACEAE |
| Persicaria pensylvanica (L.) Gomez |
POLYGONACEAE |
| Phlox andicola (Nuttall ex Torrey & Gray) E. Nelson |
POLEMONIACEAE |
| Phlox bryoides Nuttall |
POLEMONIACEAE |
| Phragmites australis (Cavanilles) Trinius ex Steudel |
POACEAE |
| Physalis hederifolia A. Gray var. comata (Rydberg) Waterfall |
SOLANACEAE |
| Physalis pumila Nuttall ssp hispida (Waterfall) Hinton |
SOLANACEAE |
| Physalis virginiana P. Miller |
SOLANACEAE |
| Plantago patagonica Jacquin |
PLANTAGINACEAE |
| Poa pratensis L. |
POACEAE |
| Poinsettia dentata (Michaux) Klotsch & Garcke |
EUPHORBIACEAE |
| Polanisia dodecandra (L.) De Candolle |
CAPPARACEAE |
| Polypogon monspeliensis (L.) Desfontaines |
POACEAE |
| Populus deltoides H. Marshall ssp monilifera (Aiton) Eckenwalder |
SALICACEAE |
| Psilochenia runcinata (James ex Torrey) Löve & Löve |
ASTERACEAE |
| Psoralidium lanceolatum (Pursh) Rydberg |
FABACEAE |
| Pterogonum alatum (Torrey) Gross |
POLYGONACEAE |
| Ratibida columnifera (Nuttall) Wooton & Standley |
ASTERACEAE |
| Rayjacksonia annua (Rydberg) R. L. Hartman & M. A. Lane |
ASTERACEAE |
| Rhus aromatica Aiton ssp trilobata (Nuttall ex Torrey & Gray) W. A. Weber |
ANACARDIACEAE |
| Ribes aureum Pursh |
GROSSULARIACEAE |
| Ribes cereum Douglas |
GROSSULARIACEAE |
| Rosa arkansana T. C. Porter |
ROSACEAE |
| Rumex venosus Pursh |
POLYGONACEAE |
| Sabina scopulorum (Sargent) Rydberg |
CUPRESSACEAE |
| Sabina virginiana (L.) Antoine |
CUPRESSACEAE |
| Salix amygdaloides Andersson |
SALICACEAE |
| Salix eriocephala Michaux |
SALICACEAE |
| Salix exigua Nuttall var pedicellata (Andersson) Cronquist |
SALICACEAE |
| Salvia reflexa Hornemann |
LAMIACEAE |
| Schedonnardus paniculatus (Nuttall) Trelease |
POACEAE |
| Schizachyrium scoparium (Michaux) Nash |
POACEAE |
| Schoenoplectus pungens (M. Vahl) Palla |
CYPERACEAE |
| Schoenoplectus validus (Vahl) Löve & Löve |
CYPERACEAE |
| Setaria glauca (L.) P. Beauvois |
POACEAE |
| Setaria italica (L.) P. Beauvois |
POACEAE |
| Solanum rostratum Dunal |
SOLANACEAE |
| Solidago canadensis L. |
ASTERACEAE |
| Solidago missouriensis Nuttall |
ASTERACEAE |
| Spartina pectinata Link |
POACEAE |
| Sphaeralcea coccinea (Pursh) Rydberg |
MALVACEAE |
| Sporobolus airoides (Torrey) Torrey |
POACEAE |
| Sporobolus cryptandrus (Torrey) A. Gray |
POACEAE |
| Stenotus armerioides Nuttall |
ASTERACEAE |
| Symphoricarpos occidentalis Hooker |
CAPRIFOLIACEAE |
| Tetraneuris acaulis (Pursh) Greene |
ASTERACEAE |
| Thelesperma megapotamicum (Sprengel) Kuntze |
ASTERACEAE |
| Thermopsis rhombifolia (Nuttall ex Pursh) Richardson |
FABACEAE |
| Thlaspi arvense L. |
BRASSICACEAE |
| Townsendia exscapa (Richardson) T. C. Porter |
ASTERACEAE |
| Toxicoscordion venenosum (S. Watson) Rydberg |
MELANTHIACEAE |
| Tradescantia occidentalis (Britton) Smyth var scopulorum (Rose) Anderson & Woodson |
COMMELINACEAE |
| Tragopogon dubius Scopoli ssp major (Jacquin) Vollmann |
ASTERACEAE |
| Tribulus terrestris L. |
ZYGOPHYLLACEAE |
| Typha angustifolia L. |
TYPHACEAE |
| Verbena bracteata Lagasca & Rodriguez |
VERBENACEAE |
| Verbena hastata L. |
VERBENACEAE |
| Verbena stricta Ventenat |
VERBENACEAE |
| Vexibia nuttalliana (B. Turner) W. A. Weber |
FABACEAE |
| Viola nuttallii Pursh |
VIOLACEAE |
| Vitis riparia Michaux ssp riparia |
VITACEAE |
| Vulpia octoflora (Walter) Rydberg |
POACEAE |
| Xanthium strumarium L. |
ASTERACEAE |
| Yucca glauca Nuttall in Fraser |
AGAVACEAE |
| Zygophyllidium hexagonum (Nuttall) Small |
EUPHORBIACEAE |
