309 Records
| Citation | Family Name |
| Abronia fragrans Nuttall ex Hooker |
NYCTAGINACEAE |
| Achnatherum hymenoides (Roemer & Schultes) Barkworth |
POACEAE |
| Agalinis tenuifolia (M. Vahl) Rafinesque |
SCROPHULARIACEAE |
| Agaloma marginata (Pursh) Löve & Löve |
EUPHORBIACEAE |
| Agrostis gigantea Roth |
POACEAE |
| Agrostis stolonifera L. |
POACEAE |
| Alopecurus arundinaceus Poir. |
POACEAE |
| Amaranthus arenicola I. M. Johnston |
AMARANTHACEAE |
| Amaranthus palmeri S. Watson |
AMARANTHACEAE |
| Ambrosia acanthicarpa Hooker |
ASTERACEAE |
| Ambrosia grayi (A. Nelson) Shinners |
ASTERACEAE |
| Ambrosia psilostachya De Candolle var coronopifolia (Torrey & Gray) Farwell |
ASTERACEAE |
| Andropogon hallii Hackel |
POACEAE |
| Apera interrupta (L.) P. Beauvois |
POACEAE |
| Apocynum sibiricum Jacquin |
APOCYNACEAE |
| Argemone polyanthemos (Fedde) G. Ownbey |
PAPAVERACEAE |
| Aristida purpurea Nuttall |
POACEAE |
| Artemisia frigida Willdenow |
ASTERACEAE |
| Artemisia ludoviciana Nuttall ssp albula (Wooton) 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 subverticillata (A. Gray) Vail |
ASCLEPIADACEAE |
| Asclepias viridiflora Rafinesque |
ASCLEPIADACEAE |
| Astragalus ceramicus Sheldon var filifolius (A. Gray) F. J. Hermann |
FABACEAE |
| Astragalus crassicarpus Nuttall |
FABACEAE |
| Astragalus gracilis Nuttall |
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 racemosus Pursh |
FABACEAE |
| Bassia sieversiana (Pallas) W. A. Weber |
CHENOPODIACEAE |
| Batrachium sp. |
RANUNCULACEAE |
| Berula erecta (Hudson) Coville |
APIACEAE |
| Bidens comosa (A. Gray) Wiegand |
ASTERACEAE |
| Bolboschoenus maritimus (L.) Palla subsp. fluviatilis (Torrey) Löve & Löve |
CYPERACEAE |
| Bothriochloa ischaemum (L.) Keng var songarica (Ruprecht ex Fischer & Meyer) Celarier & Harlan |
POACEAE |
| Bothriochloa laguroides (De Candolle) Herter ssp torreyana (Steudel) Allred & Gould |
POACEAE |
| Bouteloua curtipendula (Michaux) Torrey |
POACEAE |
| Bouteloua curtipendula (Michaux) Torrey var curtipendula |
POACEAE |
| Breea arvensis (L.) Lessing |
ASTERACEAE |
| Brickellia eupatorioides (L.) Shinners |
ASTERACEAE |
| 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 |
| Calylophus lavandulifolius (Torrey & Gray) Raven |
ONAGRACEAE |
| Calylophus serrulatus (Nuttall) Raven |
ONAGRACEAE |
| Carex brevior (Dewey) Mackenzie |
CYPERACEAE |
| Carex emoryi Dewey in Torrey |
CYPERACEAE |
| Carex gravida L. H. Bailey var lunelliana (Mackenzie) F. J. Hermann |
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 stenophylla Wahlenberg ssp eleocharis (L. H. Bailey) Hultén |
CYPERACEAE |
| Castilleja sessiliflora Pursh |
SCROPHULARIACEAE |
| Celtis reticulata Torrey |
ULMACEAE |
| Cenchrus longispinus (Hackel in Kneucker) Fernald |
POACEAE |
| Cerasus pumila (L.) Michaux ssp besseyi (L. H. Bailey) W. A. Weber |
ROSACEAE |
| Ceratophyllum demersum L. |
CERATOPHYLLACEAE |
| Chaetopappa ericoides (A. Gray) Nesom |
ASTERACEAE |
| Chamaesyce glyptosperma (Engelmann) Small |
EUPHORBIACEAE |
| Chamaesyce missurica (Rafinesque) Shinners |
EUPHORBIACEAE |
| Chenopodium cycloides A. Nelson |
CHENOPODIACEAE |
| Chenopodium glaucum L. |
CHENOPODIACEAE |
| Chenopodium incanum (S. Watson) Heller |
CHENOPODIACEAE |
| Chloris verticillata Nuttall |
POACEAE |
| Chloris virgata Swartz |
POACEAE |
| Chondrosum gracile Humboldt, Bonpland, & Kunth |
POACEAE |
| Chondrosum hirsutum (Lagasca) Sweet |
POACEAE |
| Cirsium canescens Nuttall |
ASTERACEAE |
| Cirsium ochrocentrum A. Gray |
ASTERACEAE |
| Cleome serrulata Pursh |
CAPPARACEAE |
| Comandra umbellata (L.) Nuttall ssp pallida (A. De Candolle) Piehl |
SANTALACEAE |
| Commelina erecta L. var angustifolia (Michaux) Fernald |
COMMELINACEAE |
| Conyza canadensis (L.) Cronquist |
ASTERACEAE |
| 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 minima Rydberg |
BORAGINACEAE |
| Cucurbita foetidissima Humboldt, Bonpland, & Kunth |
CUCURBITACEAE |
| Cyclanthera dissecta (Torrey & Gray) Arnott |
CUCURBITACEAE |
| Cymopterus acaulis (Pursh) Rafinesque |
APIACEAE |
| Cymopterus montanus Torrey & Gray |
APIACEAE |
| Cyperus erythrorhizus Mühlenberg |
CYPERACEAE |
| Cyperus odoratus L. |
CYPERACEAE |
| Cyperus rivularis Kunth |
CYPERACEAE |
| Dalea aurea Nuttall ex Pursh |
FABACEAE |
| Dalea candida Willdenow var oligophylla (Torrey) Shinners |
FABACEAE |
| Dalea enneandra Nuttall |
FABACEAE |
| Dalea purpurea Ventenat |
FABACEAE |
| Dalea villosa Sprengel |
FABACEAE |
| Delphinium carolinianum Walter ssp virescens (Nuttall) R. Brooks |
HELLEBORACEAE |
| Desmanthus illinoensis (Michaux) MacMillan ex Robinson & Fernald |
FABACEAE |
| Distichlis stricta (Torrey) Rydberg |
POACEAE |
| Dyssodia papposa (Ventenat) A. S. Hitchcock |
ASTERACEAE |
| Echinochloa crus-galli (L.) P. Beauvois |
POACEAE |
| Elaeagnus angustifolia L. |
ELAEAGNACEAE |
| Eleocharis palustris (L.) Roemer & Schultes |
CYPERACEAE |
| Ellisia nyctelea (L.) L. |
HYDROPHYLLACEAE |
| Elymus canadensis L. |
POACEAE |
| Epilobium leptophyllum Rafinesque |
ONAGRACEAE |
| Eragrostis barrelieri Daveau in Morot |
POACEAE |
| Eragrostis secundiflora J. Presl in K. Presl ssp oxylepis (Torrey) S. D. Koch |
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 |
| 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 |
| Eriogonum annuum Nuttall |
POLYGONACEAE |
| Erysimum asperum (Nuttall) De Candolle |
BRASSICACEAE |
| Euploca convolvulacea Nuttall ssp convolvulacea |
BORAGINACEAE |
| Eustoma grandiflorum (Rafinesque) Shinners |
GENTIANACEAE |
| Euthamia occidentalis Nuttall |
ASTERACEAE |
| Evax prolifera Nuttall ex De Candolle |
ASTERACEAE |
| Evolvulus nuttallianus Schultes |
CONVOLVULACEAE |
| Fimbristylis puberula (Michaux) Vail var interior (Britton) Kral |
CYPERACEAE |
| Fraxinus pennsylvanica H. Marshall var lanceolata (Borkhausen) Sargent |
OLEACEAE |
| Froelichia gracilis (Hooker) Moquin |
AMARANTHACEAE |
| Gaura coccinea Nuttall ex Pursh |
ONAGRACEAE |
| Gaura mollis James |
ONAGRACEAE |
| Glycyrrhiza lepidota Pursh |
FABACEAE |
| Grindelia squarrosa (Pursh) Dunal var serrulata (Rydberg) Steyermark |
ASTERACEAE |
| Gutierrezia sarothrae (Pursh) Britton & Rusby |
ASTERACEAE |
| Hedeoma drummondii Bentham |
LAMIACEAE |
| Hedeoma hispidum Pursh |
LAMIACEAE |
| Hedyotis nigricans (Lamarck) Fosberg |
RUBIACEAE |
| Helenium autumnale L. |
ASTERACEAE |
| Helianthus maximilianii Schrader |
ASTERACEAE |
| Helianthus petiolaris Nuttall |
ASTERACEAE |
| Hesperostipa comata (Trinius & Ruprecht) Barkworth |
POACEAE |
| Heterotheca canescens (De Candolle) Shinners |
ASTERACEAE |
| Heterotheca villosa (Pursh) Shinners |
ASTERACEAE |
| Hippochaete laevigata (A. Braun) Farwell |
EQUISETACEAE |
| Hippochaete variegata (Schleicher) Bruhin |
EQUISETACEAE |
| Hymenopappus filifolius Hooker var cinereus (Rydberg) I. M. Johnston |
ASTERACEAE |
| Hymenopappus flavescens A. Gray |
ASTERACEAE |
| Hymenopappus tenuifolius Pursh |
ASTERACEAE |
| Ipomoea leptophylla Torrey |
CONVOLVULACEAE |
| Ipomopsis spicata (Nuttall) V. Grant |
POLEMONIACEAE |
| Juncus arcticus Willdenow ssp ater (Rydberg) Hultén |
JUNCACEAE |
| Juncus dudleyi Wiegand |
JUNCACEAE |
| Juncus interior Wiegand |
JUNCACEAE |
| Juncus torreyi Coville |
JUNCACEAE |
| Krascheninnikovia lanata (Pursh) Meeuse & Smit |
CHENOPODIACEAE |
| Lactuca serriola L. |
ASTERACEAE |
| Lappula redowskii (Hornemann) Greene |
BORAGINACEAE |
| Lathyrus polymorphus Nuttall |
FABACEAE |
| Leiostemon ambiguus (Torrey) Greene |
SCROPHULARIACEAE |
| Lemna minuscula Herter |
LEMNACEAE |
| Lemna turionifera Landolt |
LEMNACEAE |
| Lepidium densiflorum Schrader |
BRASSICACEAE |
| Lesquerella ludoviciana (Nuttall) S. Watson |
BRASSICACEAE |
| Liatris punctata Hooker |
ASTERACEAE |
| Liatris squarrosa (L.) Michaux var glabrata (Rydberg) Gaiser |
ASTERACEAE |
| Lithospermum croceum Fernald |
BORAGINACEAE |
| Lithospermum incisum Lehmann |
BORAGINACEAE |
| Lobelia cardinalis L. ssp graminea (Lamarck) McVaugh |
CAMPANULACEAE |
| Lobelia siphilitica L. var ludoviciana A. De Candolle |
CAMPANULACEAE |
| Lupinus pusillus Pursh |
FABACEAE |
| Lycopus americanus Mühlenberg ex W. Barton |
LAMIACEAE |
| Lygodesmia juncea (Pursh) D. Don |
ASTERACEAE |
| Machaeranthera pinnatifida (Hooker) Shinners |
ASTERACEAE |
| Mariscus schweinitzii (Torrey) Koyama |
CYPERACEAE |
| Medicago lupulina L. |
FABACEAE |
| Melilotus albus Medicus |
FABACEAE |
| Mentha arvensis L. |
LAMIACEAE |
| Mesynium rigidum (Pursh) Löve & Löve |
LINACEAE |
| Mimulus glabratus Humboldt, Bonpland, & Kunth |
SCROPHULARIACEAE |
| 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 |
| Nuttallia decapetala (Pursh ex Sims) Greene |
LOASACEAE |
| Nuttallia nuda (Pursh) Greene |
LOASACEAE |
| Oenothera coronopifolia Torrey & Gray |
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 filifolius (Torrey) Poljakov |
ASTERACEAE |
| Opuntia fragilis (Nuttall) Haworth |
CACTACEAE |
| Opuntia macrorhiza Engelmann |
CACTACEAE |
| Opuntia polyacantha Haworth |
CACTACEAE |
| Opuntia sp. |
CACTACEAE |
| Oreocarya cana A. Nelson |
BORAGINACEAE |
| Oreocarya suffruticosa (Torrey) Greene |
BORAGINACEAE |
| Orophaca hyalina (Jones) Isely |
FABACEAE |
| Orophaca sericea (Nuttall) Britton |
FABACEAE |
| Oxybaphus glaber S. Watson |
NYCTAGINACEAE |
| Oxybaphus hirsutus (Pursh) Sweet in De Candolle |
NYCTAGINACEAE |
| Oxytropis lambertii Pursh |
FABACEAE |
| Oxytropis sericea Nuttall |
FABACEAE |
| Packera plattensis (Nuttall) Weber & Löve |
ASTERACEAE |
| Packera tridenticulata (Rydberg) Weber & Löve |
ASTERACEAE |
| 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 |
| Paspalum setaceum Michaux var stramineum (Nash) D. Banks |
POACEAE |
| Penstemon albidus Nuttall |
SCROPHULARIACEAE |
| Penstemon angustifolius Nuttall ex Pursh |
SCROPHULARIACEAE |
| Penstemon angustifolius Nuttall ex Pursh ssp caudatus (Heller) Keck |
SCROPHULARIACEAE |
| Penstemon buckleyi Pennell |
SCROPHULARIACEAE |
| Penstemon grandiflorus Nuttall |
SCROPHULARIACEAE |
| Persicaria maculata (L.) S. Gray |
POLYGONACEAE |
| Phleum pratense L. |
POACEAE |
| Phlox andicola (Nuttall ex Torrey & Gray) E. Nelson |
POLEMONIACEAE |
| Phyla lanceolata (Michaux) Greene |
VERBENACEAE |
| Physalis pumila Nuttall ssp hispida (Waterfall) Hinton |
SOLANACEAE |
| Physalis virginiana P. Miller |
SOLANACEAE |
| Plantago patagonica Jacquin |
PLANTAGINACEAE |
| Poa arida Vasey |
POACEAE |
| Poa pratensis L. |
POACEAE |
| Poinsettia dentata (Michaux) Klotsch & Garcke |
EUPHORBIACEAE |
| Polanisia dodecandra (L.) De Candolle |
CAPPARACEAE |
| Polanisia jamesii (Torrey & Gray) Iltis |
CAPPARACEAE |
| Polygala alba Nuttall |
POLYGALACEAE |
| Polygonum ramosissimum Michaux |
POLYGONACEAE |
| Polypogon monspeliensis (L.) Desfontaines |
POACEAE |
| Populus deltoides H. Marshall ssp monilifera (Aiton) Eckenwalder |
SALICACEAE |
| Potamogeton diversifolius Rafinesque |
POTAMOGETONACEAE |
| Potamogeton foliosus Rafinesque |
POTAMOGETONACEAE |
| Potamogeton natans L. |
POTAMOGETONACEAE |
| Potamogeton nodosus Poiret in Lamarck |
POTAMOGETONACEAE |
| Potamogeton perfoliatus L. ssp richardsonii (Bennett) Hultén |
POTAMOGETONACEAE |
| Prunus americana H. Marshall |
ROSACEAE |
| Psoralidium argophyllum (Pursh) Rydberg |
FABACEAE |
| Psoralidium digitatum (Nuttall) Rydberg |
FABACEAE |
| Psoralidium lanceolatum (Pursh) Rydberg |
FABACEAE |
| Psoralidium linearifolium (Torrey & Gray) Rydberg |
FABACEAE |
| Psoralidium tenuiflorum (Pursh) Rydberg |
FABACEAE |
| Pterogonum alatum (Torrey) Gross |
POLYGONACEAE |
| Quincula lobata (Torrey) Rafinesque |
SOLANACEAE |
| Ratibida columnifera (Nuttall) Wooton & Standley |
ASTERACEAE |
| Ratibida tagetes (James) Barnhart |
ASTERACEAE |
| Rhus aromatica Aiton ssp trilobata (Nuttall ex Torrey & Gray) W. A. Weber |
ANACARDIACEAE |
| Ribes aureum Pursh |
GROSSULARIACEAE |
| Ribes odoratum Wendland |
GROSSULARIACEAE |
| Rorippa sinuata (Nuttall in Torrey & Gray) A. S. Hitchcock |
BRASSICACEAE |
| Rosa woodsii Lindley |
ROSACEAE |
| Rumex altissimus Wood |
POLYGONACEAE |
| Rumex crispus L. |
POLYGONACEAE |
| Rumex venosus Pursh |
POLYGONACEAE |
| Sabina virginiana (L.) Antoine |
CUPRESSACEAE |
| Sagittaria cuneata Sheldon |
ALISMATACEAE |
| Sagittaria latifolia Willdenow |
ALISMATACEAE |
| Salix amygdaloides Andersson |
SALICACEAE |
| Salix exigua Nuttall ssp interior (Rowlee) Cronquist |
SALICACEAE |
| Salix exigua Nuttall var pedicellata (Andersson) Cronquist |
SALICACEAE |
| Salvia reflexa Hornemann |
LAMIACEAE |
| Schedonnardus paniculatus (Nuttall) Trelease |
POACEAE |
| Schizachyrium scoparium (Michaux) Nash |
POACEAE |
| Schoenoplectus lacustris (L.) Palla |
CYPERACEAE |
| Schoenoplectus pungens (M. Vahl) Palla |
CYPERACEAE |
| Scutellaria lateriflora L. |
LAMIACEAE |
| Senecio riddellii Torrey & Gray |
ASTERACEAE |
| Setaria viridis (L.) P. Beauvois |
POACEAE |
| Shinnersoseris rostrata (A. Gray) Tomb |
ASTERACEAE |
| Sisyrinchium idahoense Bicknell var occidentale (Bicknell) D. Henderson |
IRIDACEAE |
| Solanum americanum P. Miller |
SOLANACEAE |
| Solanum rostratum Dunal |
SOLANACEAE |
| Solanum triflorum Nuttall |
SOLANACEAE |
| Solidago canadensis L. |
ASTERACEAE |
| Solidago gigantea Aiton |
ASTERACEAE |
| Solidago mollis Bartling |
ASTERACEAE |
| Sorghastrum avenaceum (Michaux) Nash |
POACEAE |
| Sparganium emersum Rehmann |
SPARGANIACEAE |
| Sparganium eurycarpum Engelmann ex A. Gray |
SPARGANIACEAE |
| Spartina gracilis Trinius |
POACEAE |
| Spartina pectinata Link |
POACEAE |
| Sphaeralcea coccinea (Pursh) Rydberg |
MALVACEAE |
| Sphenopholis obtusata (Michaux) Scribner |
POACEAE |
| Sporobolus cryptandrus (Torrey) A. Gray |
POACEAE |
| Strophostyles leiosperma (Torrey & Gray) Piper |
FABACEAE |
| Talinum parviflorum Nuttall ex Torrey & Gray |
PORTULACACEAE |
| Tetraneuris acaulis (Pursh) Greene |
ASTERACEAE |
| Tetraneuris scaposa (De Candolle) Greene |
ASTERACEAE |
| Teucrium canadense L. ssp occidentale (A. Gray) W. A. Weber |
LAMIACEAE |
| Thelesperma megapotamicum (Sprengel) Kuntze |
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 |
| Triplasis purpurea (Walter) Chapman |
POACEAE |
| Typha angustifolia L. |
TYPHACEAE |
| Typha latifolia L. |
TYPHACEAE |
| Verbena bracteata Lagasca & Rodriguez |
VERBENACEAE |
| Verbena hastata L. |
VERBENACEAE |
| Verbena stricta Ventenat |
VERBENACEAE |
| Vernonia baldwinii Torrey ssp interior (Small) Faust |
ASTERACEAE |
| Veronica catenata Pennell |
SCROPHULARIACEAE |
| Vexibia nuttalliana (B. Turner) W. A. Weber |
FABACEAE |
| Virgulus falcatus (Lindley) Reveal & Keener |
ASTERACEAE |
| Vitis riparia Michaux ssp riparia |
VITACEAE |
| Wolffia columbiana Karsten |
LEMNACEAE |
| Yucca glauca Nuttall in Fraser |
AGAVACEAE |
| Zosterella dubia (Jacquin) Small |
PONTEDERIACEAE |
| Zygophyllidium hexagonum (Nuttall) Small |
EUPHORBIACEAE |
