105 Records
| Citation | Family Name |
| Abronia fragrans Nuttall ex Hooker |
NYCTAGINACEAE |
| Achnatherum hymenoides (Roemer & Schultes) Barkworth |
POACEAE |
| Acrolasia albicaulis (Douglas ex Hooker) Rydberg |
LOASACEAE |
| Acroptilon repens (L.) De Candolle |
ASTERACEAE |
| Aliciella pinnatifida (Nuttall ex A. Gray) J.M. Porter |
POLEMONIACEAE |
| Allium textile Nelson & Macbride |
ALLIACEAE |
| Amaranthus arenicola I. M. Johnston |
AMARANTHACEAE |
| Ambrosia acanthicarpa Hooker |
ASTERACEAE |
| Ambrosia psilostachya De Candolle var coronopifolia (Torrey & Gray) Farwell |
ASTERACEAE |
| Amorpha fruticosa L. |
FABACEAE |
| Anisantha tectorum (L.) Nevski |
POACEAE |
| Apocynum cannabinum L. |
APOCYNACEAE |
| Argemone polyanthemos (Fedde) G. Ownbey |
PAPAVERACEAE |
| Aristida purpurea Nuttall |
POACEAE |
| Artemisia ludoviciana Nuttall ssp ludoviciana |
ASTERACEAE |
| Asparagus officinalis L. |
ASPARAGACEAE |
| Astragalus bisulcatus (Hooker) A. Gray |
FABACEAE |
| Astragalus pectinatus (Hooker) Douglas in Hooker |
FABACEAE |
| Atriplex canescens (Pursh) Nuttall |
CHENOPODIACEAE |
| Azolla mexicana K. Presl |
SALVINIACEAE |
| Bassia sieversiana (Pallas) W. A. Weber |
CHENOPODIACEAE |
| Breea arvensis (L.) Lessing |
ASTERACEAE |
| Buchloë dactyloides (Nuttall) Engelmann |
POACEAE |
| Cardaria chalepensis (L.) Handel-Mazzetti |
BRASSICACEAE |
| Cardaria latifolia (L.) Spach |
BRASSICACEAE |
| Carex pensylvanica Lamarck ssp heliophila (Mackenzie) W. A. Weber |
CYPERACEAE |
| Chamaesyce geyeri (Engelmann) Small |
EUPHORBIACEAE |
| Chamaesyce missurica (Rafinesque) Shinners |
EUPHORBIACEAE |
| Chondrosum gracile Humboldt, Bonpland, & Kunth |
POACEAE |
| Chrysothamnus nauseosus (Pallas ex Pursh) Britton ssp graveolens (Nuttall) Piper |
ASTERACEAE |
| Cirsium canescens Nuttall |
ASTERACEAE |
| Conium maculatum L. |
APIACEAE |
| Conyza canadensis (L.) Cronquist |
ASTERACEAE |
| Corydalis curvisiliqua Engelmann subsp. occidentalis (Engelmann ex A. Gray) W. A. Weber |
FUMARIACEAE |
| Critesion jubatum (L.) Nevski |
POACEAE |
| Cryptantha fendleri (A. Gray) Greene |
BORAGINACEAE |
| Cryptantha minima Rydberg |
BORAGINACEAE |
| Descurainia pinnata (Walter) Britton subsp. halictorum (Cockerell) Detling |
BRASSICACEAE |
| Dichanthelium oligosanthes (Schultes) Gould var scribnerianum (Nash) Gould |
POACEAE |
| Elymus longifolius (J. G. Smith) Gould |
POACEAE |
| Erigeron bellidiastrum Nuttall |
ASTERACEAE |
| Eriogonum annuum Nuttall |
POLYGONACEAE |
| Eriogonum effusum Nuttall |
POLYGONACEAE |
| Euploca convolvulacea Nuttall ssp convolvulacea |
BORAGINACEAE |
| Eustoma grandiflorum (Rafinesque) Shinners |
GENTIANACEAE |
| Fraxinus pennsylvanica H. Marshall var lanceolata (Borkhausen) Sargent |
OLEACEAE |
| Gaura mollis James |
ONAGRACEAE |
| Gutierrezia sarothrae (Pursh) Britton & Rusby |
ASTERACEAE |
| Hecatonia scelerata (L.) Fourreau |
RANUNCULACEAE |
| Hesperostipa comata (Trinius & Ruprecht) Barkworth |
POACEAE |
| Ipomopsis aggregata (Pursh) V. Grant ssp candida (Rydberg) V. & A. Grant |
POLEMONIACEAE |
| Juncus arcticus Willdenow ssp ater (Rydberg) Hultén |
JUNCACEAE |
| Juncus bufonius L. |
JUNCACEAE |
| Juncus interior Wiegand |
JUNCACEAE |
| Koeleria macrantha (Ledebour) Schultes |
POACEAE |
| Lactuca tatarica (L.) C. A. Meyer ssp pulchella (Pursh) Stebbins |
ASTERACEAE |
| Lamium amplexicaule L. |
LAMIACEAE |
| Lemna minor L. |
LEMNACEAE |
| Lesquerella ludoviciana (Nuttall) S. Watson |
BRASSICACEAE |
| Leucocrinum montanum Nuttall ex A. Gray |
LILIACEAE |
| Lithospermum incisum Lehmann |
BORAGINACEAE |
| Lobelia siphilitica L. var ludoviciana A. De Candolle |
CAMPANULACEAE |
| Lupinus pusillus Pursh ssp pusillus |
FABACEAE |
| Monolepis nuttalliana (Schultes) Greene |
CHENOPODIACEAE |
| Musineon divaricatum (Pursh) Rafinesque var divaricatum |
APIACEAE |
| Nuttallia nuda (Pursh) Greene |
LOASACEAE |
| Oenothera albicaulis Pursh |
ONAGRACEAE |
| Oenothera latifolia (Rydberg) Munz |
ONAGRACEAE |
| Packera tridenticulata (Rydberg) Weber & Löve |
ASTERACEAE |
| Panicum capillare L. |
POACEAE |
| Panicum miliaceum L. |
POACEAE |
| Penstemon albidus Nuttall |
SCROPHULARIACEAE |
| Persicaria lapathifolia (L.) S. Gray |
POLYGONACEAE |
| Phlox andicola (Nuttall ex Torrey & Gray) E. Nelson |
POLEMONIACEAE |
| Plantago patagonica Jacquin |
PLANTAGINACEAE |
| Podospermum laciniatum (L.) De Candolle |
ASTERACEAE |
| Polanisia jamesii (Torrey & Gray) Iltis |
CAPPARACEAE |
| Polygonum ramosissimum Michaux |
POLYGONACEAE |
| Polypogon monspeliensis (L.) Desfontaines |
POACEAE |
| Psoralidium tenuiflorum (Pursh) Rydberg |
FABACEAE |
| Ribes aureum Pursh |
GROSSULARIACEAE |
| Rorippa sinuata (Nuttall in Torrey & Gray) A. S. Hitchcock |
BRASSICACEAE |
| Rosa woodsii Lindley |
ROSACEAE |
| Rumex venosus Pursh |
POLYGONACEAE |
| Salix exigua Nuttall ssp exigua |
SALICACEAE |
| Senecio riddellii Torrey & Gray |
ASTERACEAE |
| Senecio vulgaris L. |
ASTERACEAE |
| Shinnersoseris rostrata (A. Gray) Tomb |
ASTERACEAE |
| Solanum rostratum Dunal |
SOLANACEAE |
| Solidago mollis Bartling |
ASTERACEAE |
| Sphaeralcea coccinea (Pursh) Rydberg |
MALVACEAE |
| Sporobolus cryptandrus (Torrey) A. Gray |
POACEAE |
| Symphoricarpos occidentalis Hooker |
CAPRIFOLIACEAE |
| Talinum parviflorum Nuttall ex Torrey & Gray |
PORTULACACEAE |
| Tetraneuris acaulis (Pursh) Greene |
ASTERACEAE |
| Tithymalus uralensis (Fischer ex Link) Prokhanov |
EUPHORBIACEAE |
| Townsendia exscapa (Richardson) T. C. Porter |
ASTERACEAE |
| Tradescantia occidentalis (Britton) Smyth |
COMMELINACEAE |
| Tradescantia occidentalis (Britton) Smyth var scopulorum (Rose) Anderson & Woodson |
COMMELINACEAE |
| Tripterocalyx micranthus (Torrey) Hooker |
NYCTAGINACEAE |
| Typha angustifolia L. |
TYPHACEAE |
| Typha latifolia L. |
TYPHACEAE |
| Vexibia nuttalliana (B. Turner) W. A. Weber |
FABACEAE |
| Virgulus falcatus (Lindley) Reveal & Keener |
ASTERACEAE |
| Vulpia octoflora (Walter) Rydberg |
POACEAE |
