Vascular Plants of Klickitat County, Washington

Generated from PNW Herbaria database
November 28, 2020.

133 family names
690 genus names
2,604 species/infraspecies names
(names highlighted in brown could not be resolved to an accepted name)

{an additional 214 species/infraspecies are to be expected based on presence in one of these adjacent counties: Benton; these names are colored gray and enclosed in braces}

Index to Families:

Ferns:
A, B, C, D, E, I, M, O, P, S, W
Gymnosperms:
C, P, T
Dicots:
A, B, C, D, E, F, G, H, J, L, M, N, O, P, R, S, T, U, V, Z
Monocots:
A, B, C, H, I, J, L, M, O, P, S, T

FERNS:

Aspleniaceae: Asplenium
Athyriaceae: Athyrium
Blechnaceae: Struthiopteris
Cystopteridaceae: Cystopteris, Gymnocarpium
Dennstaedtiaceae: Pteridium
Dryopteridaceae: Dryopteris, Polystichum
Equisetaceae: Equisetum
Isoetaceae: Isoetes
Marsileaceae: Marsilea
Ophioglossaceae: Botrypus, Ophioglossum, Sceptridium
Polypodiaceae: Polypodium
Pteridaceae: Adiantum, Aspidotis, Cryptogramma, Myriopteris, Pellaea, Pentagramma, Pteris
Salviniaceae: Azolla
Selaginellaceae: Selaginella
Woodsiaceae: Woodsia

GYMNOSPERMS:

Cupressaceae: Callitropsis, Juniperus, Thuja
Pinaceae: Abies, Larix, Picea, Pinus, Pseudotsuga, Tsuga
Taxaceae: Taxus

DICOTS:

Adoxaceae: Sambucus, Viburnum
Amaranthaceae: Amaranthus, Atriplex, Bassia, Blitum, Chenopodiastrum, Chenopodium, Corispermum, Dysphania, Grayia, Kochia, Krascheninnikovia, Oxybasis, Salsola, Spinacia, Suaeda
Anacardiaceae: Rhus, Toxicodendron
Apiaceae: Anethum, Angelica, Anthriscus, Apium, Berula, Carum, Cicuta, Conium, Cymopterus, Daucus, Eryngium, Heracleum, Ligusticum, Lilaeopsis, Lileaopsis, Lomatium, Oenanthe, Orogenia, Osmorhiza, Pastinaca, Perideridia, Peucedanum, Sanicula, Sium, Torilis, Yabea
Apocynaceae: Apocynum, Asclepias, Vinca
Aquifoliaceae: Ilex
Araliaceae: Oplopanax
Aristolochiaceae: Asarum
Asteraceae: Achillea, Adenocaulon, Ageratina, Agoseris, Ambrosia, Anaphalis, Antennaria, Anthemis, Arctium, Arnica, Artemisia, Aster, Balsamorhiza, Bellis, Bidens, Blepharipappus, Brickellia, Cacaliopsis, Callistephus, Canadanthus, Carduus, Centaurea, Chaenactis, Chondrilla, Chrysothamnus, Cichorium, Cirsium, Columbiadoria, Conyza, Coreopsis, Cotula, Crepis, Crocidium, Cyclachaena, Dieteria, Elephantopus, Ericameria, Erigeron, Eriophyllum, Eucephalus, Eurybia, Euthamia, Filago, Gaillardia, Galinsoga, Gamochaeta, Glebionis, Gnaphalium, Grindelia, Gutierrezia, Haplopappus, Harpaecarpus, Helenium, Helianthella, Helianthus, Hemizonella, Heterotheca, Hieracium, Hymenopappus, Hypochaeris, Iva, Jacobaea, Lactuca, Lagophylla, Lapsana, Lasthenia, Layia, Leucanthemum, Madia, Matricaria, Micropus, Microseris, Nabalus, Nestotus, Nothocalais, Onopordum, Oreostemma, Packera, Petasites, Pseudognaphalium, Psilocarphus, Pyrrocoma, Rhaponticum, Rigiopappus, Saussurea, Senecio, Sericocarpus, Solidago, Sonchus, Stephanomeria, Symphyotrichum, Tanacetum, Taraxacum, Tetradymia, Townsendia, Tragopogon, Tripleurospermum, Trixis, Troximon, Uropappus, Wyethia, Xanthium
Balsaminaceae: Impatiens
Berberidaceae: Achlys, Mahonia, Vancouveria
Betulaceae: Alnus, Betula, Corylus, Ostrya
Bignoniaceae: Catalpa
Boraginaceae: Adelinia, Allocarya, Amsinckia, Anchusa, Borago, Buglossoides, Cryptantha, Cynoglossum, Eritrichium, Greeneocharis, Gruvelia, Hackelia, Krynitzkia, Lappula, Lithospermum, Lycopsis, Mertensia, Myosotis, Oreocarya, Pectocarya, Plagiobothrys, Symphytum
Brassicaceae: Alyssum, Arabidopsis, Arabis, Athysanus, Barbarea, Berteroa, Boechera, Brassica, Camelina, Capsella, Cardamine, Chorispora, Conringia, Cusickiella, Descurainia, Draba, Eruca, Erucastrum, Erysimum, Hesperidanthus, Hirschfeldia, Hornungia, Idahoa, Lepidium, Lobularia, Lunaria, Nasturtium, Neslia, Parrya, Perhaps, Phoenicaulis, Physaria, Raphanus, Rorippa, Schoenocrambe, Sinapis, Sisymbrium, Streptanthella, Thelypodium, Thlaspi, Thysanocarpus, Turritis
Cabombaceae: Brasenia
Cactaceae: Opuntia
Calycanthaceae: Calycanthus
Campanulaceae: Campanula, Downingia, Githopsis, Heterocodon, Triodanis
Cannabaceae: Cannabis, Celtis, Humulus
Caprifoliaceae: Lonicera, Symphoricarpos
Caryophyllaceae: Agrostemma, Arenaria, Atocion, Cerastium, Cherleria, Dianthus, Eremogone, Gypsophila, Herniaria, Holosteum, Honckenya, Loeflingia, Moehringia, Sabulina, Sagina, Saponaria, Scleranthus, Silene, Spergula, Spergularia, Stellaria, Vaccaria
Celastraceae: Celastrus, Euonymus, Paxistima
Ceratophyllaceae: Ceratophyllum
Cleomaceae: Cleome, Peritoma
Convolvulaceae: Calystegia, Convolvulus, Cuscuta
Cornaceae: Cornus
Crassulaceae: Crassula, Sedum
Cucurbitaceae: Echinocystis, Marah, Micrampelis
Dipsacaceae: Dipsacus
Droseraceae: Drosera
Ebenaceae: Diospyros
Ehretiaceae: Tiquilia
Elaeagnaceae: Elaeagnus
Elatinaceae: Bergia
Ericaceae: Allotropa, Arctostaphylos, Cassiope, Chimaphila, Gaultheria, Kalmia, Monotropa, Orthilia, Pleuricospora, Pterospora, Pyrola, Rhododendron, Vaccinium
Euphorbiaceae: Croton, Euphorbia
Fabaceae: Acmispon, Alhagi, Amorpha, Astragalus, Cicer, Cytisus, Dalea, Gleditsia, Glycyrrhiza, Hosackia, Ladeania, Lathyrus, Lotus, Lupinus, Medicago, Melilotus, Ononis, Phaseolus, Pisum, Psoralea, Robinia, Sphaerophysa, Trifolium, Vicia, Xylophacos
Fagaceae: Fagus, Quercus
Garryaceae: Garrya
Gentianaceae: Centaurium, Frasera, Gentiana, Zeltnera
Geraniaceae: Erodium, Geranium
Grossulariaceae: Ribes
Haloragaceae: Myriophyllum
Heliotropiaceae: Heliotropium
Hydrangeaceae: Philadelphus
Hydrophyllaceae: Hesperochiron, Hydrophyllum, Nemophila, Phacelia
Hypericaceae: Hypericum
Juglandaceae: Juglans
Lamiaceae: Agastache, Clinopodium, Glechoma, Lamium, Lycopus, Marrubium, Melissa, Mentha, Monardella, Nepeta, Physostegia, Prunella, Salvia, Scutellaria, Stachys, Trichostema
Lentibulariaceae: Utricularia
Linaceae: Linum
Linderniaceae: Ilysanthes, Lindernia
Linnaeaceae: Linnaea
Loasaceae: Mentzelia
Lythraceae: Ammannia, Lythrum, Punica, Rotala
Malvaceae: Abutilon, Gossypium, Hibiscus, Iliamna, Malva, Sidalcea, Sphaeralcea
Mazaceae: Mazus
Menyanthaceae: Menyanthes
Molluginaceae: Mollugo
Montiaceae: Calandrinia, Calyptridium, Claytonia, Lewisia, Montia, Phemeranthus
Moraceae: Maclura, Morus
Namaceae: Nama
Nyctaginaceae: Abronia
Nymphaeaceae: Nuphar, Nymphaea
Oleaceae: Fraxinus, Phillyrea, Syringa
Onagraceae: Camissonia, Camissoniopsis, Chamaenerion, Circaea, Clarkia, Epilobium, Eremothera, Gayophytum, Godetia, Ludwigia, Neoholmgrenia, Oenothera, Taraxia
Orobanchaceae: Aphyllon, Castilleja, Cordylanthus, Orobanche, Orthocarpus, Pedicularis, Triphysaria
Oxalidaceae: Oxalis
Paeoniaceae: Paeonia
Papaveraceae: Dicentra, Eschscholzia, Glaucium, Meconella, Papaver, Romneya
Phrymaceae: Diplacus, Erythranthe, Mimetanthe, Mimulus
Phytolaccaceae: Phytolacca
Plantaginaceae: Bacopa, Callitriche, Collinsia, Cymbalaria, Gratiola, Hippuris, Linaria, Nothochelone, Penstemon, Plantago, Synthyris, Tonella, Veronica
Platanaceae: Platanus
Polemoniaceae: Aliciella, Collomia, Eriastrum, Gilia, Ipomopsis, Leptosiphon, Linanthus, Microgilia, Microsteris, Navarretia, Phlox, Polemonium
Polygonaceae: Aconogonon, Bistorta, Chorizanthe, Eriogonum, Fallopia, Oxytheca, Persicaria, Polygonum, Rumex
Portulacaceae: Portulaca
Primulaceae: Androsace, Dodecatheon, Douglasia, Lysimachia, Steironema
Ranunculaceae: Actaea, Adonis, Anemone, Aquilegia, Caltha, Ceratocephala, Clematis, Delphinium, Halerpestes, Myosuros, Myosurus, Ranunculus, Thalictrum, Trautvetteria
Resedaceae: Reseda
Rhamnaceae: Ceanothus, Frangula
Rosaceae: Acaena, Agrimonia, Amelanchier, Aphanes, Aruncus, Chaenomeles, Comarum, Crataegus, Drymocallis, Fragaria, Geum, Holodiscus, Horkelia, Ivesia, Malus, Oemleria, Physocarpus, Potentilla, Poteridium, Poterium, Prunus, Purshia, Pyracantha, Pyrus, Rosa, Rubus, Sorbus, Spiraea
Rubiaceae: Cruciata, Galium, Kelloggia
Salicaceae: Populus, Salix
Santalaceae: Arceuthobium, Comandra
Sapindaceae: Acer
Sarcobataceae: Sarcobatus
Saxifragaceae: Bolandra, Heuchera, Lithophragma, Micranthes, Mitellastra, Ozomelis, Pectiantia, Saxifraga, Suksdorfia, Tellima, Tiarella
Scrophulariaceae: Limosella, Scrophularia, Verbascum
Simaroubaceae: Ailanthus
Solanaceae: Datura, Lycium, Nicotiana, Physalis, Solanum
Tamaricaceae: Tamarix
Ulmaceae: Ulmus
Urticaceae: Parietaria, Urtica
Valerianaceae: Aligera, Plectritis, Valeriana, Valerianella
Verbenaceae: Verbena
Violaceae: Viola
Vitaceae: Parthenocissus, Vitis
Zygophyllaceae: Tribulus, Zygophyllum

MONOCOTS:

Alismataceae: Alisma, Damasonium, Sagittaria
Amaryllidaceae: Allium, Galanthus, Narcissus
Araceae: Lemna, Lysichiton, Spirodela
Asparagaceae: Asparagus, Brodiaea, Camassia, Convallaria, Dichelostemma, Maianthemum, Triteleia, Yucca
Butomaceae: Butomus
Cyperaceae: Bolboschoenus, Carex, Cyperus, Dulichium, Eleocharis, Eriophorum, Lipocarpha, Schoenoplectus, Scirpus
Hydrocharitaceae: Elodea, Najas, Vallisneria
Iridaceae: Iris, Olsynium, Sisyrinchium
Juncaceae: Juncus, Luzula
Juncaginaceae: Triglochin
Liliaceae: Calochortus, Clintonia, Erythronium, Fritillaria, Lilium, Prosartes, Streptopus
Melanthiaceae: Toxicoscordion, Trillium, Veratrum
Orchidaceae: Calypso, Cephalanthera, Corallorhiza, Cypripedium, Epipactis, Goodyera, Liparis, Neottia, Platanthera, Spiranthes
Poaceae: Achnatherum, Aegilops, Agropyron, Agrostis, Aira, Alopecurus, Anthoxanthum, Apera, Aristida, Arrhenatherum, Avena, Beckmannia, Bromus, Calamagrostis, Cenchrus, Cinna, Coleanthus, Crypsis, Cynodon, Cynosurus, Dactylis, Danthonia, Deschampsia, Dichanthelium, Digitaria, Diplachne, Distichlis, Echinochloa, Elyhordeum, Elyleymus, Elymus, Eragrostis, Festuca, Glyceria, Hesperostipa, Hierochloe, Holcus, Hordeum, Koeleria, Leersia, Leymus, Lolium, Melica, Molineriella, Muhlenbergia, Panicum, Pascopyrum, Paspalum, Phalaris, Phleum, Phragmites, Piptatheropsis, Poa, Podagrostis, Polypogon, Pseudoroegneria, Puccinellia, Rostraria, Schedonorus, Schizachne, Scolochloa, Scribneria, Secale, Setaria, Sorghum, Spartina, Sphenopholis, Sporobolus, Stipa, Taeniatherum, Thinopyrum, Torreyochloa, Tripidium, Trisetum, Triticum, Ventenata, Vulpia
Pontederiaceae: Heteranthera
Potamogetonaceae: Potamogeton, Stuckenia, Zannichellia
Scheuchzeriaceae: Scheuchzeria
Tofieldiaceae: Triantha
Typhaceae: Sparganium, Typha


FERNS:

ASPLENIACEAE:
Asplenium
Asplenium trichomanes (WS, WTU; 1892)
ssp. quadrivalens (WTU; 1892)
ssp. trichomanes (WS; 1892)

ATHYRIACEAE:
Athyrium
Athyrium filix-femina (OSC, PSM, WS, WTU; 1981)
ssp. cyclosorum (WS, WTU; 1906)

BLECHNACEAE:
Struthiopteris
Struthiopteris spicant (PLU, WTU; 1968)

CYSTOPTERIDACEAE:
Cystopteris
Cystopteris fragilis (OSC, PSM, WS, WSTC, WTU; 2013)
Gymnocarpium
Gymnocarpium dryopteris (PSM; 1964)

DENNSTAEDTIACEAE:
Pteridium
Pteridium aquilinum (PSM, WS, WTU; 2018)
ssp. pubescens (WS, WTU; 1977)

DRYOPTERIDACEAE:
Dryopteris
Dryopteris expansa (PSM; 1964)
Dryopteris filix-mas (WS, WTU; 1882)
Polystichum
Polystichum imbricans (HPSU, OSC, PSM, REED, WS, WTU; 2010)
ssp. imbricans (REED, WS, WTU; 2010)
Polystichum kruckebergii (WTU; 1962)
Polystichum lemmonii (HPSU; 1975)
Polystichum munitum (PSM; 1963)
Polystichum scopulinum (WS, WTU; 1892)

EQUISETACEAE:
Equisetum
Equisetum arvense (PSM, WS, WTU; 2019)
Equisetum arvense × Equisetum fluviatile (WTU; 1918)
Equisetum ×ferrissii (OSC, WS, WTU; 2019)
Equisetum fluviatile (PSM, WS, WTU, WWB; 1980)
Equisetum hyemale (OSC, PSM, SRP, UBC, WCW, WS, WTU; 2016)
ssp. affine (OSC, SRP, WS, WTU; 2016)
var. suksdorfii (WS; 1904)
Equisetum laevigatum (ID, OSC, PLU, PSM, WS, WTU; 2010)
Equisetum ×mackaii (WTU; 1892)
Equisetum palustre (PSM, WS, WTU; 1963)
{Equisetum pratense}
Equisetum telmateia (ID, OSC, PSM, WS, WTU; 2018)
ssp. braunii (OSC, WS, WTU; 2018)
Equisetum variegatum (OSC, PSM, WS; 1963)
ssp. alaskanum (WS; 1903)
ssp. variegatum (WS; 1905)

ISOETACEAE:
Isoetes
Isoetes bolanderi (WS, WTU; 1909)
Isoetes howellii (WS, WTU; 2011)
Isoetes nuttallii (WS, WTU; 2019)

MARSILEACEAE:
Marsilea
Marsilea oligospora (WS; 1898)
Marsilea vestita (WS, WTU; 2019)

OPHIOGLOSSACEAE:
Botrypus
Botrypus virginianus (PSM, WS; 1964)
Ophioglossum
Ophioglossum pusillum (WS, WTU; 1981)
Sceptridium
Sceptridium multifidum (PSM, WS; 1967)

POLYPODIACEAE:
Polypodium
Polypodium amorphum (WTU; 1938)
Polypodium glycyrrhiza (PSM, REED, WS, WTU; 1968)
Polypodium hesperium (PSM, WS; 1963)

PTERIDACEAE:
Adiantum
Adiantum aleuticum (PSM, REED, WS, WTU; 2015)
var. aleuticum (REED; 1966)
Aspidotis
Aspidotis densa (HPSU, OSC, PSM, WS, WTU; 2007)
Cryptogramma
Cryptogramma acrostichoides (WS; 1923)
Cryptogramma crispa (PLU, PSM; 1963)
Myriopteris
Myriopteris gracillima (OSC, PSM, WS, WTU; 2017)
Pellaea
Pellaea glabella (NY, WS; 1916)
ssp. simplex (NY, WS; 1916)
Pentagramma
Pentagramma triangularis (OSC, PSM, WS, WTU; 2019)
Pteris
Pteris aquilina (WTU; 1906)
var. lanuginosa (WTU; 1906)

SALVINIACEAE:
Azolla
Azolla filiculoides (WTU; 2018)
Azolla microphylla (WS, WTU; 1892)

SELAGINELLACEAE:
Selaginella
Selaginella scopulorum (PSM, REED, WTU; 2004)
Selaginella wallacei (HPSU, OSC, PSM, WS, WTU; 2010)

WOODSIACEAE:
Woodsia
Woodsia oregana (HPSU, WS, WTU; 2011)
ssp. oregana (WS, WTU; 2011)
Woodsia scopulina (PLU, PSM, WS, WTU; 1965)
ssp. laurentiana (WS, WTU; 1932)


GYMNOSPERMS:

CUPRESSACEAE:
Callitropsis
{Callitropsis nootkatensis}
Juniperus
Juniperus occidentalis (WS, WTU; 2013)
{Juniperus scopulorum}
Thuja
Thuja plicata (ID, NY, PSM, WS, WSTC; 2017)

PINACEAE:
Abies
Abies grandis (WS; 1895)
Larix
Larix occidentalis (WS, WWB; 1975)
Picea
{Picea abies}
Picea engelmannii (WS; 1919)
var. engelmannii (WS; 1919)
Pinus
Pinus albicaulis (WTU; 1892)
Pinus contorta (PLU, PSM, WCW, WS; 1998)
var. latifolia (WS; 1911)
{Pinus mugo}
Pinus ponderosa (NY, OSC, PSM, WS, WTU; 2001)
var. ponderosa (WS, WTU; 2001)
{var. scopulorum}
{Pinus tabuliformis}
Pseudotsuga
Pseudotsuga menziesii (PSM, WCW, WS, WTU; 2001)
var. menziesii (WS, WTU; 2001)
Tsuga
Tsuga heterophylla (WS; 1882)

TAXACEAE:
Taxus
Taxus brevifolia (NY, PSM, WS; 1976)


DICOTS:

ADOXACEAE:
Sambucus
Sambucus cerulea (ID, OSC, PLU, WS, WTU; 2011)
Sambucus nigra (WS; 1890)
Sambucus racemosa (PLU, PSM; 1977)
Viburnum
Viburnum edule (PLU; 1972)
Viburnum ellipticum (ID, OSC, PLU, WS, WTU; 1974)
Viburnum opulus (WTU; 2005)
var. opulus (WTU; 2005)

AMARANTHACEAE:
Amaranthus
Amaranthus albus (PSM, WS, WTU; 1977)
Amaranthus blitoides (OSC, PSM, WS, WTU; 1987)
Amaranthus brigen (WTU; 1891)
Amaranthus californicus (WS; 1915)
Amaranthus caudatus (WS; 1914)
Amaranthus hybridus (WS; 1931)
Amaranthus powellii (WS, WTU; 2019)
Amaranthus retroflexus (PSM, WS, WTU; 1973)
Atriplex
Atriplex dioica (OSC, WTU; 2011)
{Atriplex gardneri}
{var. falcata}
{Atriplex heterosperma}
Atriplex patula (ID, OSC, SRP, WS; 1988)
var. hastata (ID, OSC, SRP; 1988)
{Atriplex prostrata}
Atriplex rosea (PSM, WS, WTU; 1978)
Atriplex truncata (WS; 1923)
Bassia
{Bassia hyssopifolia}
Bassia scoparia (OSC, WTU; 2005)
Blitum
Blitum nuttallianum (WS, WTU; 1935)
Blitum spathulatum (WS; 1904)
Chenopodiastrum
Chenopodiastrum simplex (WS; 1906)
Chenopodium
Chenopodium album (ID, OSC, PSM, SRP, WS, WTU; 1988)
Chenopodium berlandieri (OSC, WS, WTU; 1997)
var. zschackei (WS, WTU; 1997)
Chenopodium desiccatum (WS; 1910)
Chenopodium fremontii (PSM; 1973)
Chenopodium leptophyllum (WTU; 1910)
Chenopodium opulifolium (ID; 1893)
Chenopodium pratericola (WS; 1918)
Chenopodium strictum (WS, WTU; 2013)
{Chenopodium subglabrum}
Corispermum
Corispermum americanum (WTU; 1895)
var. americanum (WTU; 1895)
Corispermum hyssopifolium (OSC, WS; 1993)
Corispermum pacificum (OSC; 1925)
Corispermum pallidum (WS; 1895)
Corispermum villosum (WS; 1908)
Dysphania
Dysphania ambrosioides (WS; 1904)
Dysphania botrys (PSM, WS, WSTC, WTU; 2019)
Dysphania pumilio (PSM, WS, WTU; 1997)
Grayia
Grayia spinosa (ID, OSC, WS, WTU; 2013)
Kochia
{Kochia californica}
Krascheninnikovia
{Krascheninnikovia lanata}
Oxybasis
Oxybasis chenopodioides (OSC, SRP, WS, WTU; 1998)
Oxybasis glauca (WS, WTU; 1920)
ssp. glauca (WS; 1915)
ssp. salina (WS, WTU; 1920)
Oxybasis rubra (ID, OSC, RM, SRP, WS, WTU; 1998)
var. humilis (OSC, WS, WTU; 1988)
var. rubra (OSC, RM, SRP, WS, WTU; 1998)
Salsola
Salsola tragus (PSM, WS, WTU; 2005)
Spinacia
Spinacia oleracea (WS; 1882)
Suaeda
Suaeda nigra (WS; 1905)

ANACARDIACEAE:
Rhus
Rhus glabra (WTU; 2018)
Toxicodendron
Toxicodendron coriaceum (NY; 1885)
Toxicodendron diversilobum (OSC, WCW, WS, WTU; 2012)
{Toxicodendron pubescens}

APIACEAE:
Anethum
{Anethum graveolens}
Angelica
Angelica arguta (PSM, WS; 1972)
Angelica canbyi (OSC, WS, WTU; 1907)
Angelica genuflexa (PSM, WS, WTU; 1974)
Anthriscus
Anthriscus caucalis (HPSU, OSC, PSM, SOC, WCW, WS, WTU; 2017)
Apium
{Apium graveolens}
Berula
Berula incisa (WTU; 2018)
Carum
Carum carvi (WS; 1907)
Cicuta
Cicuta douglasii (ID, PSM, WS, WTU; 2001)
{Cicuta maculata}
{var. angustifolia}
Conium
Conium maculatum (PSM, WS, WTU; 2017)
Cymopterus
Cymopterus foeniculaceus (WS; 1890)
Cymopterus terebinthinus (OSC, PSM, REED, WTU; 2019)
Daucus
Daucus carota (PSM, WS, WTU; 2018)
Daucus pusillus (NY, WS, WTU; 1962)
Eryngium
Eryngium aquaticum (WTU; 2017)
var. ravenelii (WTU; 2017)
Eryngium petiolatum (OSC, WS, WTU; 1981)
Heracleum
Heracleum maximum (PSM, WS, WTU; 2018)
Ligusticum
Ligusticum apiifolium (PSM; 1973)
Lilaeopsis
Lilaeopsis occidentalis (OSC, WTU; 2019)
Lileaopsis
Lileaopsis occidentalis (WS; 1992)
Lomatium
Lomatium ambiguum (WS; 1923)
Lomatium anomalum (CIC; 2011)
Lomatium bicolor (PSM; 1974)
Lomatium brevifolium (CIC, ID, NY, OSC, REED, SRP, WS, WTU; 2014)
Lomatium canbyi (HPSU, NY, OSC, PSM, REED, WS, WSTC, WTU; 2013)
Lomatium columbianum (CIC, HPSU, ID, OSC, PSM, REED, SRP, WS, WTU, WWB; 2019)
Lomatium cous (PSM; 1974)
Lomatium dissectum (CIC, HPSU, ID, IDS, OSC, PSM, REED, SOC, SRP, WS, WTU; 2019)
{Lomatium farinosum}
Lomatium geyeri (REED; 1964)
Lomatium gormanii (HPSU, OSC, WS, WSTC, WTU; 2011)
Lomatium grayi (HPSU, ID, IDS, OSC, REED, SOC, SRP, WS, WTU; 2019)
Lomatium klickitatense (CIC, SRP, WTU; 2019)
Lomatium laevigatum (CIC, ID, OSC, REED, SRP, WS, WTU; 2019)
Lomatium leptocarpum (WTU; 1982)
Lomatium linearifolium (PSM, WS, WTU; 1972)
Lomatium linearifolium (WTU; 1910)
Lomatium macrocarpum (CIC, COLO, HPSU, ID, MONT, NY, OSC, PSM, REED, SOC, SRP, WS, WSTC, WTU; 2019)
Lomatium martindalei (HPSU, WS; 1968)
Lomatium multifidum (NY, OSC, REED, WS, WTU; 2014)
Lomatium nudicaule (HPSU, ID, IDS, OSC, PSM, REED, WCW, WS, WSTC, WTU; 2013)
Lomatium papilioniferum (CIC, WTU; 2013)
Lomatium piperi (HPSU, OSC, REED, WS, WTU; 2015)
Lomatium salmoniflorum (PSM; 1952)
Lomatium simplex (OSC, WS, WTU; 2011)
Lomatium suksdorfii (CIC, HPSU, OSC, PSM, REED, SRP, WS, WTU, WWB; 2019)
var. suksdorfii (OSC, REED, WTU; 1975)
Lomatium tamanitchii (CIC, ID, NY, OSC, RM, SRP, WS, WTU; 2014)
Lomatium triternatum (CIC, HPSU, ID, IDS, NY, OSC, PSM, REED, SRP, WCW, WS, WSTC, WTU, WWB; 2017)
{Lomatium tuberosum}
Lomatium watsonii (CIC, HPSU, OSC, SRP, WS, WSTC, WTU; 2014)
Oenanthe
Oenanthe sarmentosa (PSM, WS, WWB; 1980)
Orogenia
Orogenia linearifolia (WS; 1916)
f. integrifolia (WS; 1916)
Osmorhiza
Osmorhiza berteroi (OSC, PSM, WS, WTU, WWB; 2009)
Osmorhiza occidentalis (REED, WS; 1968)
Osmorhiza purpurea (WS; 1926)
Pastinaca
Pastinaca sativa (PSM, REED, WTU; 1976)
Perideridia
Perideridia montana (HPSU, PSM, WS, WTU; 1997)
Peucedanum
Peucedanum suksdorfii (NY; 1883)
Sanicula
Sanicula crassicaulis (NY, OSC, WS, WTU; 1952)
var. crassicaulis (WTU; 1923)
var. tripartita (NY, OSC, WS, WTU; 1952)
Sanicula diversiloba (NY, WS; 1918)
Sanicula graveolens (HPSU, OSC, PSM, REED, SRP, WS, WTU; 2009)
Sium
Sium suave (PSM, WS; 1972)
Torilis
Torilis arvensis (CIC, ID, OSC, PSM, RM, SRP, WS, WTU; 2019)
ssp. heterophylla (OSC, RM, WS; 1991)
Yabea
Yabea microcarpa (OSC, REED, SOC, WS, WTU; 2019)

APOCYNACEAE:
Apocynum
Apocynum androsaemifolium (ID, OSC, PSM, REED, WS, WTU, WWB; 2012)
Apocynum androsaemifolium × Apocynum cannabinum (PSM; 1972)
Apocynum cannabinum (CIC, ID, NY, OSC, PSM, SRP, WS, WTU; 2019)
Apocynum denticulatum (WS; 1904)
Apocynum ×floribundum (WTU; 1904)
Asclepias
Asclepias fascicularis (ID, OSC, PSM, REED, WS, WTU; 2017)
Asclepias speciosa (HPSU, PSM, WS; 1973)
Vinca
Vinca major (WTU; 2019)

AQUIFOLIACEAE:
Ilex
Ilex aquifolium (WTU; 2007)

ARALIACEAE:
Oplopanax
Oplopanax horridus (PSM, WS; 1972)

ARISTOLOCHIACEAE:
Asarum
Asarum caudatum (PSM, WS, WTU; 2015)

ASTERACEAE:
Achillea
Achillea millefolium (HPSU, ID, PSM, REED, WCW, WS, WTU; 2019)
Adenocaulon
Adenocaulon bicolor (PSM, WS, WTU; 2012)
Ageratina
Ageratina occidentalis (WS, WTU; 1997)
Agoseris
Agoseris apargioides (WCW; 1996)
Agoseris aurantiaca (HPSU, WS; 2009)
var. aurantiaca (HPSU, WS; 2009)
Agoseris ×elata (OSC, WS, WTU; 1906)
Agoseris glauca (OSC, PSM, WS, WTU; 2008)
var. glauca (OSC, WS, WTU; 2008)
Agoseris grandiflora (PSM, WS, WTU; 1997)
var. grandiflora (WS, WTU; 1977)
Agoseris heterophylla (HPSU, OSC, PSM, WS, WTU; 2010)
var. heterophylla (HPSU, OSC, WS, WTU; 2009)
Agoseris monticola (WS; 1882)
Agoseris retrorsa (OSC, PSM, WS, WTU; 1997)
Ambrosia
Ambrosia acanthicarpa (IDS, OSC, PSM, WS, WTU; 1987)
Ambrosia artemisiifolia (WS; 1924)
Anaphalis
Anaphalis margaritacea (OSC, PSM, WS, WTU; 2013)
Antennaria
Antennaria dimorpha (HPSU, ID, OSC, PSM, WS, WSTC, WTU; 2017)
Antennaria flagellaris (WS; 1884)
Antennaria geyeri (ID, WS, WTU; 1998)
Antennaria howellii (WS, WTU; 2009)
ssp. howellii (WS, WTU; 2009)
ssp. neodioica (WS; 1895)
Antennaria luzuloides (HPSU, OSC, PSM, WS, WTU; 1980)
ssp. aberrans (HPSU; 1968)
ssp. luzuloides (WS; 1923)
Antennaria microphylla (PSM, WS, WTU; 1972)
Antennaria neglecta (PSM; 1972)
Antennaria racemosa (WS; 1923)
Antennaria stenophylla (OSC, PLU, PSM, WS; 1998)
Anthemis
Anthemis arvensis (PSM, WS, WTU; 1977)
Anthemis cotula (PSM, WS, WTU, WWB; 2008)
Arctium
Arctium lappa (WS, WTU; 1915)
Arctium minus (PSM, WS, WTU; 2019)
Arnica
Arnica alpina (OSC; 1879)
Arnica chamissonis (PSM, WS, WTU; 1972)
Arnica cordifolia (HPSU, OSC, PSM, REED, WS, WTU, WWB; 2017)
Arnica discoidea (WS, WTU; 1926)
Arnica falconaria (WS; 1892)
Arnica fulgens (WS, WTU; 1977)
Arnica lanceolata (WS, WTU; 1882)
ssp. prima (WS, WTU; 1882)
Arnica latifolia (WS, WTU, WWB; 1980)
Arnica longifolia (PSM; 1972)
Arnica mollis (HPSU; 1970)
Arnica ovata (PSM, REED; 1973)
Artemisia
Artemisia biennis (OSC, WS, WTU; 1998)
Artemisia borealis (WS; 1896)
var. wormskioldii (WS; 1896)
Artemisia campestris (OSC, PSM, SRP, WS, WTU; 1990)
var. borealis (WTU; 1983)
var. scouleriana (OSC, SRP, WS, WTU; 1990)
var. wormskioldii (WTU; 1983)
{Artemisia cana}
Artemisia douglasiana (ID, PSM, WS, WTU; 2018)
Artemisia dracunculus (OSC, SRP, WS, WTU; 1987)
Artemisia frigida (WS; 1927)
Artemisia ludoviciana (OSC, PSM, WS, WTU; 1976)
ssp. candicans (OSC, WS, WTU; 1925)
ssp. incompta (WS; 1895)
ssp. lindleyana (PSM, WS; 1976)
ssp. ludoviciana (WS; 1896)
Artemisia michauxiana (WS; 1903)
Artemisia rigida (WTU; 2013)
Artemisia tilesii (WS; 1904)
Artemisia tridentata (MONT, OSC, PSM, WS, WTU; 2018)
ssp. tridentata (MONT, WS, WTU; 2018)
{Artemisia tripartita}
{ssp. tripartita}
Artemisia vulgaris (OSC, SRP, WS, WTU; 1985)
Aster
Aster humistratus (NY, WS; 1905)
Balsamorhiza
Balsamorhiza careyana (OSC, WCW, WS, WTU; 2009)
Balsamorhiza careyana × Balsamorhiza deltoidea (WS; 1942)
{Balsamorhiza careyana × Balsamorhiza hookeri}
Balsamorhiza careyana × Balsamorhiza sagittata (WS, WTU; 2011)
Balsamorhiza careyana × Balsamorhiza serrata (WS, WTU; 2011)
Balsamorhiza deltoidea (BOIS, HPSU, OSC, PSM, WS, WTU; 2019)
Balsamorhiza hookeri (HPSU, MONT, OSC, PLU, PSM, WS, WSTC, WTU; 2015)
Balsamorhiza incana (WTU; 1977)
{Balsamorhiza rosea}
Balsamorhiza sagittata (HPSU, PSM, REED, WS, WTU; 2010)
Balsamorhiza serrata (PSM, WS, WTU; 2013)
Bellis
{Bellis perennis}
Bidens
Bidens cernua (ID, OSC, PSM, REED, WS, WTU; 1972)
{Bidens connata}
Bidens frondosa (ID, OSC, PSM, WS, WTU; 1984)
Bidens tripartita (WS; 1922)
Bidens vulgata (OSC, WS, WTU; 1922)
Blepharipappus
Blepharipappus scaber (WS, WTU; 2013)
Brickellia
Brickellia grandiflora (PSM; 1973)
Brickellia greenei (OSC; 1881)
Brickellia oblongifolia (OSC; 1881)
var. oblongifolia (OSC; 1881)
Cacaliopsis
Cacaliopsis nardosmia (HPSU, OSC, PSM, WS, WTU; 1991)
Callistephus
Callistephus chinensis (WS; 1904)
Canadanthus
Canadanthus modestus (PSM, WS, WTU, WWB; 1997)
Carduus
{Carduus nutans}
Centaurea
Centaurea benedicta (OSC, WS, WTU; 1991)
Centaurea cyanus (OSC, PSM, WCW, WS, WTU; 2018)
var. denudata (WTU; 1920)
Centaurea dealbata (WS; 1991)
Centaurea diffusa (NY, OSC, PSM, RM, WS, WTU; 2005)
Centaurea ×gerstlaueri (OSC, SRP, WS, WTU; 2007)
Centaurea jacea (PSM; 1974)
Centaurea jacea × Centaurea nigra (WS; 1988)
Centaurea macrocephala (WS; 1918)
Centaurea melitensis (WS, WTU; 1985)
Centaurea moncktonii × Centaurea nigra) (WS; 2007)
Centaurea nigra (PSM; 1975)
Centaurea nigrescens (NY, PSM, SRP, WS; 1985)
Centaurea solstitialis (MONT, OSC, PSM, SRP, WS, WTU, WWB; 2017)
Centaurea stoebe (HPSU, WS, WTU; 2012)
ssp. australis (HPSU, WS, WTU; 2012)
Centaurea ×varnensis (WTU; 1987)
Chaenactis
Chaenactis douglasii (HPSU, ID, OSC, PSM, REED, SRP, WS, WTU; 2019)
var. douglasii (ID, WS, WTU; 2019)
Chondrilla
Chondrilla juncea (ID, OSC, WTU; 2011)
Chrysothamnus
Chrysothamnus viscidiflorus (PSM, WS, WTU; 2018)
ssp. lanceolatus (WS; 1913)
ssp. viscidiflorus (WS, WTU; 2018)
Cichorium
Cichorium intybus (PSM, WS, WTU; 2012)
Cirsium
Cirsium arvense (NY, PSM, WS, WTU; 1972)
Cirsium brevistylum (PSM; 1974)
Cirsium edule (WS; 1909)
Cirsium remotifolium (ID, OSC, WS, WTU; 1938)
Cirsium undulatum (PSM, WS, WTU; 2017)
Cirsium vulgare (PSM, WS, WTU; 2016)
Columbiadoria
Columbiadoria hallii (OSC, PSM, WS, WTU; 1980)
Conyza
Conyza canadensis (PSM, WS, WTU; 2012)
Coreopsis
Coreopsis tinctoria (CIC, OSC, PSM, WS, WTU; 2017)
Cotula
Cotula coronopifolia (WS; 1970)
Crepis
{Crepis acuminata}
Crepis atribarba (WS, WTU; 2005)
Crepis barbigera (ID, OSC, WS, WTU; 1982)
Crepis capillaris (PSM, WS, WTU; 1972)
Crepis intermedia (PSM, WS, WTU; 2018)
Crepis modocensis (OSC; 1879)
Crepis nicaeensis (PSM; 1976)
Crepis occidentalis (ID, OSC, PSM, WTU; 2013)
Crepis runcinata (WS; 1884)
ssp. runcinata (WS; 1884)
Crocidium
Crocidium multicaule (CIC, HPSU, ID, IDS, OSC, PLU, PSM, WCW, WS, WSTC, WTU; 2010)
Cyclachaena
Cyclachaena xanthiifolia (WS; 1901)
Dieteria
Dieteria canescens (OSC, PSM, WS, WTU; 2012)
{var. canescens}
var. incana (OSC, WS; 1987)
Elephantopus
{Elephantopus angustifolius}
Ericameria
Ericameria bloomeri (OSC, PSM, WS, WTU; 1972)
Ericameria linearis (WTU; 2017)
Ericameria nana (OSC; 1925)
Ericameria nauseosa (OSC, PSM, SRP, WS, WTU; 2018)
var. speciosa (OSC, SRP, WS, WTU; 2018)
Ericameria resinosa (OSC, SRP, WS, WTU; 2019)
Erigeron
Erigeron acris (HPSU, WS; 1882)
var. kamtschaticus (WS; 1882)
Erigeron annuus (ID, OSC, WS, WTU; 2012)
var. annuus (WTU; 1903)
Erigeron chrysopsidis (ID, WTU; 2013)
var. chrysopsidis (WTU; 2013)
Erigeron compositus (HPSU, WS, WTU; 2017)
Erigeron concinnus (WS; 1906)
var. concinnus (WS; 1906)
Erigeron corymbosus (WS; 1884)
Erigeron curvifolius (WS; 1884)
Erigeron divergens (WTU; 1906)
Erigeron filifolius (HPSU, ID, OSC, PSM, WS, WTU; 2019)
{Erigeron foliosus}
{var. confinis}
Erigeron glacialis (WS; 1923)
var. glacialis (WS; 1923)
Erigeron inornatus (OSC, WTU; 1993)
var. inornatus (WTU; 1906)
Erigeron linearis (HPSU, ID, OSC, PSM, WS, WTU; 2013)
Erigeron philadelphicus (PSM, WS, WTU; 1977)
Erigeron piperianus (HPSU, WSTC; 1975)
Erigeron poliospermus (ID, OSC, PSM, SRP, WS, WTU; 2011)
var. poliospermus (ID, OSC, SRP, WS, WTU; 2011)
Erigeron pumilis (WS; 1998)
Erigeron pumilus (WS, WTU; 2013)
var. intermedius (WS, WTU; 2013)
var. pumilus (WTU; 2013)
Erigeron speciosus (OSC, PSM, WS, WTU; 1977)
Erigeron strigosus (OSC, PSM, WS, WTU; 1976)
var. septentrionalis (WS, WTU; 1898)
var. strigosus (WS, WTU; 1915)
Eriophyllum
Eriophyllum lanatum (ID, IDS, LINF, OSC, PSM, SRP, WS, WTU, WWB; 2017)
var. integrifolium (OSC, WS, WTU; 2005)
var. lanatum (ID, SRP, WS, WTU; 2017)
var. leucophyllum (WTU; 1926)
Eucephalus
Eucephalus glaucescens (OSC, WS, WTU; 1980)
{Eucephalus gormanii}
Eucephalus ledophyllus (PSM; 1980)
Eurybia
Eurybia integrifolia (WS; 1923)
Eurybia radulina (WS, WTU; 1926)
Euthamia
{Euthamia graminifolia}
Euthamia occidentalis (NY, OSC, PSM, SRP, WS, WTU; 2012)
Filago
{Filago arvensis}
Gaillardia
Gaillardia aristata (HPSU, ID, OSC, PSM, REED, WS, WTU; 2019)
Galinsoga
Galinsoga parviflora (WS, WTU; 1925)
var. parviflora (WS; 1911)
Gamochaeta
Gamochaeta purpurea (OSC; 1893)
Gamochaeta ustulata (NY, WS; 1893)
Glebionis
Glebionis coronaria (WS; 1892)
Gnaphalium
Gnaphalium palustre (HPSU, WS, WTU; 2018)
Gnaphalium uliginosum (OSC, PSM, WS, WTU; 1992)
Grindelia
Grindelia hirsutula (HPSU, OSC, WS, WTU; 2019)
Grindelia squarrosa (PSM, WS; 1975)
Gutierrezia
Gutierrezia sarothrae (PSM, WS, WTU; 2012)
Haplopappus
Haplopappus gummifer (WS; 1906)
Harpaecarpus
Harpaecarpus longipes (WS; 1906)
Helenium
Helenium autumnale (OSC, PSM, WS, WTU; 2017)
Helianthella
Helianthella uniflora (PSM, WS, WTU, WWB; 1972)
var. douglasii (WTU, WWB; 1972)
Helianthus
Helianthus annuus (ID, OSC, PSM, WS, WTU; 2018)
Helianthus cusickii (ID, OSC, PSM, WS, WTU; 2013)
Helianthus grosseserratus (WS, WTU; 1928)
Helianthus hirsutus (WS; 1890)
Helianthus maximiliani (WS; 1919)
Hemizonella
Hemizonella minima (OSC, PSM, WS, WTU, WWB; 1971)
Heterotheca
Heterotheca hirsuta (ID; 2001)
Heterotheca hispida (ID; 1984)
Heterotheca oregona (OSC; 1900)
Heterotheca villosa (HPSU, OSC, PSM, SRP, WS, WTU; 2017)
var. foliosa (OSC, WS, WTU; 1983)
var. minor (HPSU, OSC, WS, WTU; 2010)
var. villosa (SRP, WS, WTU; 2017)
Hieracium
Hieracium albiflorum (PSM, WCW, WS, WTU; 2018)
Hieracium caespitosum (PSM, WTU; 2018)
Hieracium longiberbe (PSM; 1972)
Hieracium scouleri (ID, OSC, PSM, WCW, WS, WTU; 2001)
var. cynoglossoides (WTU; 1918)
Hieracium suksdorfii (WS; 1906)
Hieracium umbellatum (WS, WTU; 1911)
Hymenopappus
Hymenopappus filifolius (PSM, WS; 1975)
var. filifolius (WS; 1906)
Hypochaeris
Hypochaeris glabra (HPSU, OSC, PSM, WTU; 2019)
Hypochaeris radicata (PSM, WS, WTU; 2019)
Iva
Iva axillaris (WS, WTU; 2019)
Jacobaea
Jacobaea vulgaris (PSM; 1978)
Lactuca
Lactuca biennis (OSC, PSM, WS, WTU; 1973)
Lactuca canadensis (OSC, WS, WTU; 1920)
Lactuca ludoviciana (WS, WTU; 1927)
Lactuca sativa (ID, OSC, RM, WS, WTU; 1915)
Lactuca serriola (ID, OSC, PSM, WS, WTU; 2017)
Lactuca tatarica (PSM, WS, WTU; 1974)
ssp. pulchella (WS, WTU; 1934)
Lagophylla
Lagophylla ramosissima (ID, OSC, SRP, WS, WSTC, WTU; 2019)
Lapsana
Lapsana communis (PSM, WS, WTU; 1972)
Lasthenia
Lasthenia glaberrima (WS, WTU; 2019)
Layia
Layia glandulosa (ID, OSC, WTU; 2017)
var. glandulosa (ID, OSC, WTU; 1909)
Leucanthemum
Leucanthemum vulgare (ID, PSM, WTU, WWB; 2012)
Madia
Madia citriodora (OSC, WCW, WS, WTU; 2009)
Madia elegans (WS, WTU; 2018)
Madia exigua (ID, OSC, PSM, WCW, WS, WTU; 2019)
Madia filipes (WS; 1892)
var. macrocephala (WS; 1892)
Madia glomerata (WS, WTU; 1907)
Madia gracilis (ID, OSC, PSM, SRP, WCW, WS, WTU; 2009)
Madia sativa (OSC, PSM, WTU; 1972)
Matricaria
Matricaria discoidea (PSM, REED, WS, WTU; 2012)
Micropus
Micropus californicus (WS; 1915)
var. californicus (WS; 1915)
Microseris
Microseris laciniata (OSC, PSM, WS; 1972)
ssp. leptosepala (OSC, WS; 1911)
Microseris nutans (OSC, PSM, WCW, WS, WTU; 2009)
Nabalus
Nabalus alatus (WS; 1926)
Nestotus
Nestotus stenophyllus (OSC, WS, WTU; 2013)
Nothocalais
Nothocalais troximoides (HPSU, IDS, OSC, PNNL, PSM, WCW, WS, WSTC, WTU; 2013)
Onopordum
Onopordum acanthium (WTU; 1986)
Oreostemma
Oreostemma alpigenum (WTU; 1892)
var. alpigenum (WTU; 1892)
Packera
{Packera cana}
Packera contermina (WS; 1917)
Packera flettii (PSM; 1977)
{Packera paupercula}
Packera pseudaurea (ID, PSM, WS, WTU; 2001)
var. pseudaurea (WS, WTU; 1897)
Packera streptanthifolia (WTU; 1980)
Petasites
Petasites frigidus (PSM, WS, WTU; 2010)
var. palmatus (WS, WTU; 2010)
Pseudognaphalium
Pseudognaphalium canescens (PSM; 1972)
Pseudognaphalium luteoalbum (ID, OSC, WS, WTU; 2018)
Pseudognaphalium macounii (WS; 1911)
{Pseudognaphalium microcephalum}
Pseudognaphalium stramineum (HPSU, OSC, PSM, SRP, WS, WTU; 2009)
Pseudognaphalium thermale (ID, OSC, SRP, WS, WTU; 2019)
Psilocarphus
Psilocarphus brevissimus (WS; 1899)
var. brevissimus (WS; 1899)
Psilocarphus elatior (OSC, WS, WTU; 1911)
Psilocarphus oregonus (OSC, WS, WTU; 2004)
Pyrrocoma
Pyrrocoma carthamoides (OSC, PSM, WS, WTU; 1991)
var. carthamoides (OSC, WS, WTU; 1991)
var. cusickii (WS; 1886)
Rhaponticum
Rhaponticum repens (NY, PSM, WS, WTU; 1986)
Rigiopappus
Rigiopappus leptocladus (ID, OSC, WS, WTU; 2018)
Saussurea
Saussurea americana (WTU; 1962)
Senecio
{Senecio crassulus}
Senecio hydrophiloides (WS, WTU; 1938)
Senecio hydrophilus (OSC, WS, WTU; 2017)
Senecio integerrimus (HPSU, OSC, PSM, REED, SRP, WCW, WS, WSTC, WTU; 2013)
var. exaltatus (HPSU, OSC, REED, WS, WSTC, WTU; 2013)
var. ochroleucus (OSC, SRP, WS, WTU; 2012)
Senecio serra (PSM, WS, WTU; 2017)
var. serra (WS, WTU; 2017)
Senecio sylvaticus (PSM, WS, WTU; 1977)
Senecio triangularis (PSM, WS; 1972)
Senecio vulgaris (PSM, WS, WTU; 2019)
Sericocarpus
Sericocarpus oregonensis (WS; 1908)
ssp. oregonensis (WS; 1908)
Solidago
Solidago canadensis (PSM; 1972)
Solidago elongata (WS; 1910)
{Solidago gigantea}
Solidago lepida (OSC, WS, WTU, WWB; 2019)
var. salebrosa (OSC, WS, WTU; 2019)
Solidago missouriensis (WS; 1882)
Solidago multiradiata (PSM; 1972)
Sonchus
{Sonchus arvensis}
{ssp. arvensis}
{ssp. uliginosus}
Sonchus asper (ID, OSC, PSM, WS, WTU; 1997)
Sonchus oleraceus (ID, OSC, PSM, WS, WTU; 2012)
Stephanomeria
Stephanomeria paniculata (WS; 1886)
Stephanomeria tenuifolia (ID, OSC, PSM, WS, WTU; 1975)
Symphyotrichum
Symphyotrichum ascendens (WS, WTU; 2019)
Symphyotrichum bracteolatum (OSC, WS, WTU; 1981)
Symphyotrichum campestre (WS, WTU; 1899)
Symphyotrichum chilense (PSM; 1972)
Symphyotrichum drummondii (WS; 1904)
var. drummondii (WS; 1904)
Symphyotrichum ericoides (WS; 1922)
var. pansum (WS; 1922)
Symphyotrichum falcatum (WS; 1922)
Symphyotrichum foliaceum (SRP, WS, WTU; 1964)
Symphyotrichum frondosum (OSC, WS, WTU; 1998)
Symphyotrichum hallii (WS; 1922)
Symphyotrichum jessicae (NY; 1972)
Symphyotrichum laeve (WS, WTU; 1928)
var. geyeri (WS, WTU; 1928)
{Symphyotrichum lanceolatum}
{var. hesperium}
{Symphyotrichum novae-angliae}
Symphyotrichum spathulatum (OSC, SRP, WS, WTU; 1977)
Symphyotrichum subspicatum (COLO, ID, NY, OSC, SRP, WS, WTU; 2019)
Tanacetum
Tanacetum parthenium (WS; 1906)
Tanacetum vulgare (PSM, WTU; 2012)
Taraxacum
Taraxacum officinale (PSM, WS, WTU; 2012)
Tetradymia
Tetradymia canescens (WS, WTU; 2016)
Townsendia
Townsendia florifer (ID, WSTC, WTU; 2013)
Tragopogon
Tragopogon dubius (OSC, PSM, SRP, WCW, WS, WTU; 2019)
Tragopogon floccosus (WS; 1924)
Tragopogon porrifolius (OSC, SRP, WS, WTU; 1983)
{Tragopogon pratensis}
Tripleurospermum
Tripleurospermum inodorum (WTU; 2018)
Tripleurospermum maritimum (WTU; 1997)
ssp. maritimum (WTU; 1997)
Trixis
Trixis grandiflorum (NY; 1891)
var. obtusifolium (NY; 1891)
Troximon
Troximon grandiflorum (WS; 1891)
var. obtusifolium (WS; 1891)
Troximon heterophyllum (NY, WS; 1894)
var. glabratum (NY, WS; 1894)
Uropappus
Uropappus lindleyi (ID, PLU, WCW, WS, WTU; 2019)
Wyethia
Wyethia amplexicaulis (ID, PSM, WS, WTU; 2013)
Wyethia angustifolia (WS; 1881)
Xanthium
Xanthium affine (NY; 1893)
Xanthium silphiifolium (NY; 1883)
Xanthium spinosum (WS, WTU; 1922)
Xanthium strumarium (NY, OSC, PSM, SRP, WS, WTU; 1988)

BALSAMINACEAE:
Impatiens
{Impatiens capensis}

BERBERIDACEAE:
Achlys
Achlys californica (WTU; 1884)
Achlys triphylla (HPSU, ID, PSM, WS, WTU; 2015)
Mahonia
Mahonia aquifolium (CIC, PSM, REED, WCW, WS, WTU; 2010)
Mahonia nervosa (ID, PSM, WS, WTU, WWB; 2017)
Mahonia repens (ID, WCW, WS, WSTC, WTU; 2012)
Vancouveria
Vancouveria hexandra (PSM, WS, WTU; 2014)

BETULACEAE:
Alnus
Alnus incana (OSC, SRP, WS, WSTC, WTU; 2011)
ssp. tenuifolia (OSC, WS, WSTC, WTU; 2011)
Alnus rhombifolia (CIC, EWU, ID, OSC, PSM, SRP, WS, WSTC, WTU; 2019)
Alnus rubra (ID, OSC, PSM, WS, WTU; 1933)
Alnus viridis (WS; 1938)
ssp. sinuata (WS; 1938)
Betula
Betula glandulosa (WS, WTU; 1920)
Betula occidentalis (PSM, WS; 1974)
Betula papyrifera (PSM; 1973)
{Betula pendula}
Betula pumila (WS, WTU; 1919)
Corylus
Corylus cornuta (EWU, ID, OSC, PSM, SRP, WS, WSTC, WTU, WWB; 2001)
ssp. californica (ID, OSC, SRP, WS, WSTC, WTU; 2001)
Ostrya
Ostrya virginiana (WS; 1901)

BIGNONIACEAE:
Catalpa
{Catalpa bignonioides}
Catalpa speciosa (WTU; 2019)

BORAGINACEAE:
Adelinia
Adelinia grande (OSC; 1987)
Adelinia grandis (ID, PSM, SRP, WCW, WTU; 2010)
Allocarya
Allocarya fragilis (NY; 1893)
Amsinckia
Amsinckia arenaria (NY, WTU; 1898)
Amsinckia arvensis (NY, WS; 1891)
Amsinckia incongruens (WS; 1913)
Amsinckia intermedia (ID, SRP, WS, WTU; 2010)
Amsinckia lycopsoides (ID, OSC, PSM, SRP, WCW, WS, WTU; 2019)
Amsinckia menziesii (HPSU, ID, OSC, WS, WTU, WWB; 2017)
Amsinckia retrorsa (CIC, HPSU, NY, SRP, WCW, WS, WTU; 2013)
Amsinckia tessellata (ID, OSC, WS, WTU; 2011)
var. tessellata (WS; 1896)
Anchusa
Anchusa azurea (WS; 1924)
Borago
Borago officinalis (HPSU; 1989)
Buglossoides
Buglossoides arvensis (ID, WS, WTU; 2011)
Cryptantha
Cryptantha affinis (WS, WTU; 1926)
Cryptantha ambigua (OSC, WS, WTU; 2019)
{Cryptantha fendleri}
Cryptantha flaccida (ID, OSC, PSM, WCW, WS, WTU; 2011)
Cryptantha gracilis (WTU; 2013)
Cryptantha grandiflora (WTU, WWB; 1984)
Cryptantha intermedia (OSC, SRP, WCW, WS, WTU; 2014)
var. hendersonii (WS, WTU; 1946)
Cryptantha monosperma (NY; 1885)
Cryptantha pterocarya (OSC, WS, WTU; 2013)
Cryptantha rostellata (ID, OSC, SRP, WS, WTU, WWB; 2013)
{Cryptantha scoparia}
Cryptantha simulans (WS; 1891)
Cryptantha torreyana (WS, WTU, WWB; 2009)
Cynoglossum
Cynoglossum officinale (OSC, PSM, WTU; 2010)
Eritrichium
{Eritrichium argenteum}
Greeneocharis
{Greeneocharis circumscissa}
Gruvelia
Gruvelia pusilla (WS, WTU; 2009)
Hackelia
Hackelia diffusa (OSC, WS, WTU; 2018)
var. cottonii (WTU; 2018)
var. diffusa (OSC, WS; 1969)
Hackelia micrantha (WS, WTU; 1899)
Krynitzkia
Krynitzkia suksdorfii (WS; 1886)
Lappula
Lappula redowskii (WS; 1895)
var. cupulata (WS; 1895)
{var. redowskii}
Lithospermum
Lithospermum ruderale (ID, IDS, OSC, PSM, SRP, WS, WTU; 1996)
Lycopsis
Lycopsis arvensis (WS; 1920)
Mertensia
Mertensia foliosa (WS; 1880)
Mertensia longiflora (IDS; 1963)
{Mertensia oblongifolia}
Mertensia paniculata (OSC, PSM, WS, WTU; 1973)
var. borealis (WS, WTU; 1899)
Myosotis
Myosotis discolor (PSM; 1972)
Myosotis laxa (ID, PSM, WCW, WTU; 2019)
Myosotis micrantha (HPSU, IDS, OSC, SRP, WS, WTU; 2014)
Myosotis scorpioides (WS; 1950)
Myosotis verna (WS; 1906)
Oreocarya
Oreocarya glomerata (OSC, WS, WTU; 2014)
Oreocarya leucophaea (WS; 1898)
Oreocarya spiculifera (WTU; 2015)
{Oreocarya thompsonii}
Pectocarya
{Pectocarya linearis}
Pectocarya penicillata (WS; 1895)
Pectocarya setosa (WTU; 2013)
Plagiobothrys
Plagiobothrys canescens (WS; 1914)
Plagiobothrys cusickii (WS, WTU; 2017)
Plagiobothrys figuratus (ID, OSC, PSM, WTU; 2004)
var. figuratus (OSC; 1908)
Plagiobothrys hispidulus (OSC, WS; 1993)
Plagiobothrys leptocladus (PSM, WTU; 2004)
Plagiobothrys nothofulvus (CIC, HPSU, ID, OSC, PSM, WS, WTU; 1976)
Plagiobothrys scouleri (ID, OSC, PSM, WS, WTU; 2019)
Plagiobothrys tenellus (OSC, SRP, WS, WTU, WWB; 2013)
Symphytum
Symphytum officinale (OSC; ?)

BRASSICACEAE:
Alyssum
Alyssum desertorum (WTU; 2009)
Arabidopsis
Arabidopsis thaliana (ID, OSC, PSM, SRP, WS, WTU; 2017)
Arabis
Arabis furcata (HPSU, OSC, WS; 1926)
{Arabis nuttallii}
Athysanus
Athysanus pusillus (HPSU, OSC, REED, WS, WTU; 2013)
Barbarea
Barbarea orthoceras (PSM, REED, WS, WSTC, WTU, WWB; 2017)
Barbarea vulgaris (PSM, REED, WS; 1972)
Berteroa
Berteroa incana (PSM, WS, WTU; 2009)
Boechera
Boechera atrorubens (NY, WS, WTU; 2001)
Boechera cobrensis (PSM; 1979)
Boechera cusickii (PSM, WS, WTU; 1981)
Boechera divaricarpa (WTU; 2001)
Boechera holboellii (WS; 1927)
Boechera microphylla (WS; 1908)
Boechera paddoensis (WS; 1903)
Boechera pauciflora (WS, WTU; 2015)
Boechera pendulocarpa (WS; 1885)
Boechera pinetorum (WS; 1881)
Boechera puberula (PSM, WS, WTU; 1977)
Boechera retrofracta (NY, OSC, WS; 1915)
Boechera sparsiflora (OSC, PSM, WSTC; 1974)
Boechera stricta (HPSU; 1972)
Brassica
Brassica juncea (WS; 1924)
Brassica napus (WS, WTU; 2001)
Brassica nigra (OSC, SRP, WS, WTU; 2016)
Brassica rapa (PSM, WTU; 2012)
Camelina
Camelina microcarpa (ID, OSC, WS, WTU; 1977)
Camelina sativa (WS; 1906)
Capsella
Capsella bursa-pastoris (OSC, PSM, REED, WCW, WS, WTU; 1996)
Cardamine
Cardamine cordifolia (WS, WTU; 1899)
Cardamine diphylla (WS; 1885)
Cardamine hirsuta (ID, WS, WTU; 2018)
Cardamine lucens (COLO; 1912)
Cardamine macrocarpa (WS; 1929)
Cardamine nuttallii (OSC, PSM, REED, WCW, WS, WSTC, WTU; 2010)
Cardamine occidentalis (ID, OSC, WS, WTU; 1912)
Cardamine oligosperma (ID, IDS, MONTU, NY, OSC, PSM, RM, SRP, WCW, WS, WTU; 2017)
Cardamine pensylvanica (PSM, WS, WTU; 1982)
Chorispora
Chorispora tenella (PSM, WTU; 2013)
Conringia
Conringia orientalis (WS; 1921)
Cusickiella
Cusickiella douglasii (HPSU, OSC, SRP, WS, WTU; 1982)
Descurainia
{Descurainia californica}
Descurainia incana (ID, PSM; 1996)
Descurainia incisa (OSC, WTU; 2011)
ssp. incisa (OSC, WTU; 2011)
Descurainia longepedicellata (ID, WS, WTU; 2013)
Descurainia nelsonii (OSC, WS, WTU; 2013)
{Descurainia paradisa}
Descurainia pinnata (OSC, PSM; 1972)
{ssp. brachycarpa}
{ssp. ochroleuca}
Descurainia sophia (PSM, WS, WTU; 2009)
Draba
Draba albertina (WS; 1980)
Draba nemorosa (WS, WTU; 1886)
Draba platycarpa (WS; 1914)
Draba reptans (WS, WTU; 1914)
Draba verna (HPSU, OSC, PSM, RM, WS, WSTC, WTU; 2017)
Eruca
Eruca vesicaria (NY, OSC, WS, WTU; 1906)
ssp. sativa (OSC, WS, WTU; 1906)
var. sativa (NY; 1906)
Erucastrum
Erucastrum gallicum (WS, WTU; 2017)
Erysimum
Erysimum arenicola (PLU; 1961)
Erysimum capitatum (OSC, PSM, WS, WTU, WWB; 2013)
var. capitatum (OSC, WTU; 2013)
Erysimum cheiranthoides (WS; 1924)
Erysimum occidentale (ID, OSC, WS, WTU; 2018)
Erysimum repandum (PSM, WS, WTU; 2011)
Hesperidanthus
Hesperidanthus linearifolius (WCW; 1935)
Hirschfeldia
Hirschfeldia incana (ID, WTU; 2018)
Hornungia
Hornungia procumbens (WS, WTU; 2013)
Idahoa
Idahoa scapigera (CIC, HPSU, OSC, PSM, REED, WS, WSTC, WTU; 2010)
Lepidium
Lepidium acutidens (WS; 1904)
{Lepidium appelianum}
Lepidium campestre (ID, OSC, PSM, SRP, WS, WTU; 2001)
Lepidium chalepense (PSM; 1975)
Lepidium densiflorum (OSC, WS, WTU; 1921)
Lepidium dictyotum (WS, WTU; 2011)
Lepidium draba (OSC, WS, WTU; 2011)
Lepidium heterophyllum (OSC, WTU; 2009)
Lepidium latifolium (ID, NY, OSC, PSM, WTU; 2013)
Lepidium nitidum (OSC, WS, WTU; 1974)
Lepidium perfoliatum (PSM, WS, WTU; 2011)
Lepidium ramosissimum (WS; 1925)
Lepidium sativum (WS, WTU; 1904)
Lepidium virginicum (OSC, WS, WTU; 1926)
ssp. menziesii (OSC, WS, WTU; 1926)
Lobularia
{Lobularia maritima}
Lunaria
Lunaria annua (LINF, PSM, WS, WTU; 2007)
Nasturtium
Nasturtium microphyllum (ID, OSC, SRP, WTU; 2012)
Nasturtium officinale (ID, PSM, REED, WS, WTU; 2012)
Neslia
Neslia paniculata (WS; 1908)
Parrya
Parrya menziesii (WTU; 1938)
Perhaps
Perhaps douglasii (WS; 1908)
Phoenicaulis
Phoenicaulis cheiranthoides (HPSU, OSC, WS, WSTC, WTU; 2015)
Phoenicaulis menziesii (WTU; 1934)
Physaria
Physaria douglasii (NY, OSC, WS, WTU; 2017)
ssp. douglasii (WS, WTU; 2011)
Raphanus
Raphanus sativus (PSM, WS, WTU; 1978)
Rorippa
Rorippa austriaca (WS; 2009)
Rorippa columbiae (COLO, NY, REED, WS, WTU; 1966)
Rorippa curvipes (ID, IDS, OSC, WCW, WS, WTU; 1918)
Rorippa curvisiliqua (ID, OSC, PSM, WS, WTU, WWB; 2019)
Rorippa palustris (ID, OSC, WS, WTU; 1924)
ssp. hispida (WS; 1915)
ssp. palustris (ID, OSC, WS, WTU; 1924)
Rorippa sinuata (OSC, WS, WTU; 1905)
Rorippa tenerrima (WTU; 1905)
Schoenocrambe
Schoenocrambe linifolia (WTU; 1932)
var. pinnata (WTU; 1932)
Sinapis
Sinapis arvensis (PSM, WS, WTU; 2002)
Sisymbrium
Sisymbrium altissimum (ID, OSC, PSM, REED, SRP, WS, WTU; 2019)
Sisymbrium linifolium (ID, OSC, SRP, WS, WTU; 2011)
Sisymbrium loeselii (WTU; 2006)
Sisymbrium officinale (ID, OSC, PSM, WS, WTU; 1972)
Streptanthella
{Streptanthella longirostris}
Thelypodium
Thelypodium laciniatum (HPSU, OSC, PSM, SRP, WS, WTU; 2019)
Thelypodium milleflorum (WS, WTU; 2013)
{Thelypodium sagittatum}
Thlaspi
Thlaspi arvense (PSM; 1981)
Thysanocarpus
Thysanocarpus curvipes (ID, OSC, PSM, REED, WS, WTU, WWB; 2013)
var. madocarpus (WS; 1906)
Turritis
Turritis glabra (PSM, WS, WTU; 1997)

CABOMBACEAE:
Brasenia
Brasenia schreberi (ID, OSC, WS, WTU; 1911)

CACTACEAE:
Opuntia
Opuntia columbiana (PSM, WTU; 2015)
Opuntia phaeacantha (WTU; 2019)

CALYCANTHACEAE:
Calycanthus
Calycanthus floridus (WS; 1882)

CAMPANULACEAE:
Campanula
Campanula rotundifolia (OSC, PLU, WS, WTU; 1982)
Campanula scabrella (OSC; 1882)
Campanula scouleri (OSC, PLU, SOC, WS, WTU; 2012)
Downingia
Downingia bacigalupii (WS; 1997)
Downingia brachypetala (WS; 1897)
Downingia elegans (EWU, ID, IDS, OSC, WCW, WS, WTU, WWB; 2001)
Downingia willamettensis (WTU; 2019)
Downingia yina (WS, WTU; 2004)
Githopsis
Githopsis specularioides (OSC, WS, WTU; 2011)
Heterocodon
Heterocodon rariflorus (WS, WTU; 2019)
Triodanis
Triodanis perfoliata (OSC, WS, WTU; 2017)

CANNABACEAE:
Cannabis
Cannabis sativa (PSM; 1977)
Celtis
Celtis laevigata (PSM; 1977)
Celtis reticulata (EWU, OSC, SOC, SRP, WS, WTU; 2018)
Humulus
{Humulus lupulus}
{var. lupuloides}

CAPRIFOLIACEAE:
Lonicera
Lonicera ciliosa (HPSU, OSC, PLU, SRP, WS, WTU, WWB; 2014)
Lonicera conjugialis (OSC; 1880)
Lonicera involucrata (PLU; 1971)
{Lonicera japonica}
Symphoricarpos
Symphoricarpos albus (ID, MONTU, NY, OSC, PLU, PSM, WS, WTU; 2001)
var. albus (ID, OSC, WTU; 2001)
var. laevigatus (MONTU, NY, WS, WTU; 1952)
Symphoricarpos mollis (REED, WS, WTU; 2001)
{Symphoricarpos rotundifolius}
{var. oreophilus}

CARYOPHYLLACEAE:
Agrostemma
Agrostemma githago (ID, OSC, WCW, WS, WTU; 1996)
Arenaria
Arenaria serpyllifolia (OSC, PSM, RM, WS, WTU; 2019)
var. serpyllifolia (RM, WTU; 2019)
Atocion
Atocion armeria (WS; 1885)
Cerastium
Cerastium arvense (PSM; 1975)
Cerastium dichotomum (WS; 1998)
Cerastium fontanum (PSM, WS; 1972)
ssp. vulgare (WS; 1905)
Cerastium glomeratum (NY, PSM, WS, WTU, WWB; 2009)
Cerastium nutans (OSC, WS, WWB; 1991)
Cerastium semidecandrum (WS, WTU; 2018)
Cherleria
Cherleria obtusiloba (OSC; 1898)
Dianthus
Dianthus armeria (PSM, WS, WTU; 2012)
ssp. armeria (WTU; 2001)
Dianthus barbatus (WS; 1897)
Dianthus deltoides (ID, PSM, WS; 2001)
Eremogone
Eremogone capillaris (OSC, PSM; 1974)
{Eremogone congesta}
{var. cephaloidea}
Eremogone franklinii (HPSU, OSC, WS, WTU; 2019)
var. franklinii (WTU; 2019)
{var. thompsonii}
Gypsophila
Gypsophila paniculata (PSM, WTU; 2019)
Herniaria
Herniaria hirsuta (WS; 1914)
var. cinera (WS; 1914)
Holosteum
Holosteum umbellatum (PSM, WS, WTU; 1997)
Honckenya
Honckenya peploides (PSM; 1973)
Loeflingia
{Loeflingia squarrosa}
Moehringia
Moehringia macrophylla (OSC, PSM, WS, WTU; 2010)
Sabulina
Sabulina michauxii (PSM; 1972)
{Sabulina nuttallii}
{var. fragilis}
{var. nuttallii}
Sabulina pusilla (OSC, WS; 1906)
Sagina
Sagina apetala (WTU; 2019)
Sagina decumbens (OSC, WS, WTU; 2019)
ssp. occidentalis (OSC, WS, WTU; 2019)
Sagina procumbens (WS, WTU; 2017)
Sagina saginoides (WS; 1895)
Saponaria
Saponaria officinalis (OSC, PSM, RM, SRP, WS, WTU; 1987)
Scleranthus
Scleranthus annuus (HPSU, PSM, WTU; 2017)
ssp. annuus (WTU; 2017)
Silene
Silene antirrhina (WS, WTU; 1925)
Silene chalcedonica (PSM; 1972)
Silene conoidea (WS; 1910)
Silene csereii (WTU; 2005)
Silene dichotoma (WS; 1912)
Silene dilatata (NY, WS; 1892)
Silene douglasii (OSC, PSM, WS, WTU; 2001)
var. douglasii (OSC, WS; 1892)
var. rupinae (WTU; 1938)
{Silene latifolia}
Silene menziesii (HPSU, PSM, WS, WTU; 1997)
Silene noctiflora (PSM; 1972)
Silene oregana (HPSU, OSC, WS; 1926)
Silene parryi (PSM; 1980)
Silene scouleri (PSM; 1972)
Silene suksdorfii (HPSU; 1882)
Silene vulgaris (PSM, WS, WTU; 2018)
Spergula
Spergula arvensis (PSM, WS, WTU; 1973)
Spergularia
Spergularia canadensis (WS; 1926)
var. occidentalis (WS; 1926)
Spergularia diandra (OSC, WS, WTU; 1926)
Spergularia rubra (PSM, WS, WTU; 2019)
Spergularia salina (WS; 1927)
Stellaria
Stellaria borealis (WS; 1903)
ssp. sitchana (WS; 1903)
Stellaria calycantha (PSM; 1982)
Stellaria crispa (PSM, WCW, WS, WTU; 1996)
Stellaria graminea (PSM; 1972)
Stellaria longifolia (WS; 1909)
Stellaria longipes (ID, PSM, WS, WTU, WWB; 2001)
ssp. longipes (WTU, WWB; 2001)
Stellaria media (PSM, WS, WTU; 2011)
Stellaria nitens (OSC, PSM, WTU; 2011)
Stellaria obtusa (WS; 1900)
Vaccaria
Vaccaria hispanica (WS; 1897)

CELASTRACEAE:
Celastrus
{Celastrus orbiculatus}
Euonymus
{Euonymus fortunei}
{Euonymus kiautschovicus}
Paxistima
Paxistima myrsinites (WS, WTU; 2009)

CERATOPHYLLACEAE:
Ceratophyllum
Ceratophyllum demersum (WS, WTU; 1879)

CLEOMACEAE:
Cleome
Cleome lutea (WS; 1986)
ssp. lutea (WS; 1986)
Peritoma
Peritoma lutea (OSC, PSM, WTU; 2016)

CONVOLVULACEAE:
Calystegia
Calystegia atriplicifolia (ID, OSC, PSM, WS, WTU; 2001)
ssp. atriplicifolia (ID, OSC, WS, WTU; 2001)
Calystegia sepium (ID, PSM, WS, WTU; 2019)
ssp. angulata (WTU; 2019)
Convolvulus
Convolvulus arvensis (PSM, WS, WTU; 2017)
Cuscuta
Cuscuta approximata (WS, WTU; 1918)
var. approximata (WS, WTU; 1918)
Cuscuta campestris (WTU; 1896)
Cuscuta cephalanthi (WS, WTU; 1907)
{Cuscuta denticulata}
Cuscuta epithymum (WTU; 1918)
var. epithymum (WTU; 1909)
Cuscuta indecora (WS, WTU; 1912)
var. indecora (WS, WTU; 1912)
Cuscuta pentagona (WS; 1917)

CORNACEAE:
Cornus
Cornus canadensis (PSM; 1972)
Cornus nuttallii (ID, OSC, PSM, REED, WS, WTU; 2017)
Cornus occidentalis (WTU; 2016)
Cornus stolonifera (ID, OSC, PSM, WS, WTU; 2019)
f. californica (WTU; 1918)
ssp. stolonifera (WS; 1923)
Cornus unalaschkensis (WS, WTU; 1903)

CRASSULACEAE:
Crassula
Crassula aquatica (OSC, SRP, WS, WTU; 2019)
Sedum
Sedum divergens (WS; 1903)
Sedum lanceolatum (PSM, WS; 1998)
Sedum leibergii (OSC, WS, WTU; 2017)
Sedum spathulifolium (PSM, WS, WTU; 1972)
Sedum stenopetalum (PSM, WS, WTU; 1997)
ssp. stenopetalum (WS; 1923)

CUCURBITACEAE:
Echinocystis
{Echinocystis lobata}
Marah
Marah oregana (CIC, LINF, OSC, PSM, SRP, WCW, WS, WTU; 2011)
Micrampelis
Micrampelis oregana (WTU; 1938)

DIPSACACEAE:
Dipsacus
Dipsacus fullonum (PSM, WS, WTU; 2016)

DROSERACEAE:
Drosera
Drosera anglica (PSM, WS; 1982)
Drosera rotundifolia (PSM, WS; 1982)

EBENACEAE:
Diospyros
Diospyros virginiana (WTU; 2019)

EHRETIACEAE:
Tiquilia
{Tiquilia nuttallii}

ELAEAGNACEAE:
Elaeagnus
Elaeagnus angustifolia (OSC, WTU; 2017)

ELATINACEAE:
Bergia
Bergia texana (WS, WTU; 1922)

ERICACEAE:
Allotropa
Allotropa virgata (WTU; 2018)
Arctostaphylos
Arctostaphylos columbiana (ID, OSC, PSM, WTU; 1968)
Arctostaphylos nevadensis (PSM, WS, WTU; 1972)
Arctostaphylos nevadensis × Arctostaphylos patula (WTU; 2009)
Arctostaphylos patula (WS, WTU; 1932)
Arctostaphylos uva-ursi (PSM, WS, WTU; 1967)
Cassiope
Cassiope mertensiana (OSC; 1880)
Chimaphila
Chimaphila menziesii (PSM, WS, WTU; 2001)
Chimaphila umbellata (PSM, WS, WTU, WWB; 2018)
ssp. umbellata (WS, WTU; 2018)
Gaultheria
Gaultheria ovatifolia (WS, WTU; 1923)
Gaultheria shallon (WTU; 2016)
Kalmia
Kalmia microphylla (PSM, WS, WTU; 1982)
Monotropa
Monotropa hypopitys (WS; 1911)
Monotropa uniflora (PSM; 1968)
Orthilia
Orthilia secunda (PSM; 1967)
Pleuricospora
Pleuricospora fimbriolata (OSC, WTU; 1897)
Pterospora
Pterospora andromedea (OSC, PSM, WWB; 1980)
Pyrola
Pyrola aphylla (WTU; 2001)
Pyrola asarifolia (PSM, WS, WWB; 1980)
ssp. asarifolia (WS, WWB; 1980)
Pyrola chlorantha (WTU; 1892)
Pyrola picta (PSM, WS; 1968)
Rhododendron
Rhododendron menziesii (PSM; 1968)
Vaccinium
Vaccinium cespitosum (OSC, PLU, WS; 1968)
Vaccinium membranaceum (WS; 1923)
Vaccinium ovalifolium (PLU, WWB; 1980)
Vaccinium oxycoccos (PLU, PSM, WS, WTU; 1982)
Vaccinium scoparium (WTU; 1892)
Vaccinium uliginosum (ID, PLU, PSM, WS; 1982)

EUPHORBIACEAE:
Croton
Croton setigerus (OSC, PSM, WS, WTU, WWB; 2018)
Euphorbia
Euphorbia cyparissias (PSM; 1974)
Euphorbia glyptosperma (OSC, PSM, WS, WTU; 2013)
Euphorbia maculata (PSM, WS, WTU; 2018)
Euphorbia peplus (PSM; 1977)
Euphorbia serpillifolia (PSM, WS, WTU; 1997)
{ssp. hirtula}
Euphorbia spathulata (WS; 1908)
Euphorbia virgata (PSM, WS; 1973)

FABACEAE:
Acmispon
Acmispon americanus (EWU, ID, IDS, OSC, PSM, SRP, WS, WTU; 2018)
var. americanus (ID, SRP, WS, WTU; 2018)
Acmispon nevadensis (EWU, HPSU, ID, OSC, PSM, REED, WCW, WS, WTU, WWB; 2012)
var. nevadensis (EWU, HPSU, WCW, WS, WTU; 2004)
Acmispon parviflorus (ID, PSM, WCW, WS, WTU; 2018)
Alhagi
{Alhagi maurorum}
Amorpha
Amorpha fruticosa (ID, IDS, OSC, SOC, WS, WTU; 2019)
Astragalus
Astragalus arrectus (NY, WS; 1998)
Astragalus canadensis (WS; 1884)
var. brevidens (WS; 1884)
Astragalus caricinus (WTU; 2013)
{Astragalus collinus}
{Astragalus columbianus}
Astragalus conjunctus (WCW; 1993)
var. conjunctus (WCW; 1993)
{var. rickardii}
Astragalus diaphanus (NY, WS; 1920)
Astragalus filipes (PSM; 1975)
{Astragalus geyeri}
Astragalus hoodianus (NY, OSC, SRP, WS, WTU, WWB; 2015)
Astragalus inflexus (NY, WS, WTU; 2014)
Astragalus leibergii (WTU; 1934)
Astragalus lentiginosus (ID, OSC; 1993)
var. lentiginosus (ID, OSC; 1993)
{Astragalus lyallii}
Astragalus misellus (NY, WTU; 1982)
var. pauper (WTU; 1982)
Astragalus pulsiferae (NY, OSC, PSM, WCW, WS, WTU; 1981)
var. suksdorfii (NY, OSC, WTU; 1981)
Astragalus purshii (NY, OSC, PSM, WS, WSTC, WTU; 2013)
var. glareosus (NY, OSC, WS, WTU; 2011)
var. purshii (NY, WS, WTU; 2013)
var. tinctus (WSTC, WTU; 2011)
Astragalus reventiformis (NY, OSC, WS, WTU; 2013)
var. canbyi (WTU; 1938)
Astragalus reventus (NY, PSM, REED; 1972)
Astragalus sclerocarpus (NY, WS, WTU; 2017)
Astragalus sinuatus (WS; ?)
{Astragalus spaldingii}
Astragalus speirocarpus (NY, SRP, WS, WTU; 2013)
Astragalus succumbens (NY, WS, WSTC, WTU; 2013)
Astragalus suksdorfii (WS; 1883)
Astragalus tweedyi (ID, NY, OSC, PSM, SRP, WS, WTU; 2017)
Cicer
Cicer arietinum (WS; ?)
Cytisus
Cytisus scoparius (OSC, PSM, SRP, WTU; 2014)
Dalea
{Dalea ornata}
Gleditsia
Gleditsia triacanthos (WTU; 2019)
Glycyrrhiza
Glycyrrhiza lepidota (ID, OSC, PSM, SRP, WS, WTU; 2012)
Hosackia
Hosackia crassifolia (WS, WTU; 1905)
var. crassifolia (WS, WTU; 1905)
Hosackia gracilis (REED; 1968)
Hosackia pinnata (ID, PSM, WS, WTU; 2009)
Ladeania
Ladeania lanceolata (ID, NY, OSC, PSM, SRP, WS, WTU; 2019)
Lathyrus
Lathyrus angulatus (WTU; 2019)
Lathyrus lanszwertii (OSC, PSM, WS, WTU; 1972)
var. aridus (OSC, WTU; 1925)
var. lanszwertii (WS, WTU; 1949)
Lathyrus latifolius (OSC, PSM, WS, WTU; 2019)
Lathyrus nevadensis (ID, LINF, OSC, PSM, WS, WTU; 2007)
var. nevadensis (ID, OSC, WS, WTU; 1949)
Lathyrus odoratus (WS; 1892)
Lathyrus palustris (WWB; 1980)
Lathyrus pauciflorus (ID, OSC, PSM, WS, WSTC, WTU, WWB; 2009)
var. pauciflorus (OSC, WS, WTU; 2009)
Lathyrus polyphyllus (ID, OSC, PSM, WS, WTU; 2014)
Lathyrus sphaericus (ID, RM; 1988)
Lathyrus sylvestris (WS, WTU; 2012)
var. angustifolius (WTU; 1926)
Lotus
Lotus corniculatus (PSM, WTU, WWB; 2012)
Lotus tenuis (WTU; 2018)
Lupinus
Lupinus agninus (WS; 1906)
Lupinus albicaulis (OSC, WS, WTU; 1996)
Lupinus andersonii (HPSU, OSC; 1960)
Lupinus arbustus (OSC, SRP, WCW, WS, WTU, WWB; 2019)
Lupinus argenteus (PSM, WTU; 2018)
var. argenteus (WTU; 2018)
var. holosericeus (WTU; 2010)
Lupinus bicolor (ID, OSC, PSM, SRP, WCW, WS, WTU; 2019)
Lupinus caudatus (ID, WTU; 2001)
Lupinus humicola (WTU; 1910)
ssp. suksdorfii (WTU; 1910)
Lupinus latifolius (CIC, OSC, PSM, SRP, WCW, WS, WTU; 2019)
var. latifolius (OSC, WS, WTU; 2019)
Lupinus latifolius × Lupinus sericeus (WTU; 2009)
Lupinus laxiflorus (WTU; 1934)
ssp. laxiflorus (WTU; 1934)
Lupinus lepidus (HPSU, ID, IDS, OSC, PSM, SRP, WS, WTU, WWB; 2019)
var. aridus (HPSU, ID, IDS, OSC, SRP, WS, WTU; 2019)
var. lepidus (WS; 1899)
var. lobbii (ID, WTU; 1950)
var. sellulus (WWB; 1926)
Lupinus leucophyllus (HPSU, ID, OSC, WCW, WS, WTU; 2018)
var. leucophyllus (OSC, WS, WTU; 2018)
{Lupinus microcarpus}
{var. microcarpus}
Lupinus mollis (OSC; 1947)
Lupinus nanus (WTU; 1935)
{Lupinus ornatus}
Lupinus polyphyllus (OSC, PLU, PSM, WCW, WS, WTU, WWB; 2013)
var. burkei (WTU; 1922)
{var. humicola}
var. pallidipes (WWB; 1980)
var. polyphyllus (WS; 1922)
var. prunophilus (OSC, PLU, WCW, WTU, WWB; 2013)
Lupinus pusillus (WS; 1932)
{var. intermontanus}
Lupinus rivularis (NY, OSC, WS, WTU, WWB; 1980)
Lupinus saxosus (OSC, PSM, WS, WTU; 1994)
Lupinus sericeus (ID, PSM, WS, WTU; 2019)
var. sericeus (WS, WTU; 2019)
Lupinus suksdorfii (ID, NY, OSC, PSM, WTU; 1972)
Lupinus sulphureus (LINF, NY, OSC, REED, WS, WTU; 2018)
ssp. bingenensis (WTU; 1946)
var. bingenensis (LINF, OSC, WS, WTU; 2007)
var. subsaccatus (NY, OSC, REED, WS, WTU; 2010)
Medicago
Medicago arabica (WS, WTU; 2018)
Medicago lupulina (PSM, REED, WS, WTU; 2014)
Medicago minima (ID, OSC, WS, WTU; 2019)
Medicago polymorpha (WS; 1912)
Medicago sativa (HPSU, OSC, REED, WS, WTU, WWB; 2019)
ssp. sativa (WTU; 2014)
Melilotus
Melilotus albus (HPSU, OSC, WS, WTU; 2010)
{Melilotus indicus}
Melilotus officinalis (ID, OSC, PSM, WS, WTU; 2015)
Ononis
Ononis spinosa (WTU; 1926)
ssp. maritima (WTU; 1926)
Phaseolus
Phaseolus coccineus (WS; 1882)
Pisum
Pisum sativum (WTU; 2008)
Psoralea
Psoralea lanceolata (WTU; 1890)
var. scabra (WTU; 1890)
Robinia
Robinia pseudoacacia (OSC, PSM, WS, WTU; 1996)
Sphaerophysa
{Sphaerophysa salsula}
Trifolium
Trifolium albopurpureum (WS; 1900)
Trifolium arvense (HPSU, ID, OSC, PSM, WCW, WS, WTU; 2019)
Trifolium aureum (PSM; 1976)
Trifolium bifidum (WS, WWB; 1911)
var. decipiens (WS, WWB; 1911)
Trifolium campestre (OSC, WTU; 2004)
Trifolium ciliolatum (ID, PSM, WS, WTU, WWB; 1988)
Trifolium cyathiferum (OSC, WS, WTU, WWB; 2004)
Trifolium dubium (WCW, WS; 1996)
Trifolium fragiferum (WTU; 2019)
Trifolium glomeratum (OSC, SRP, WS; 2006)
Trifolium gracilentum (OSC; 1989)
Trifolium hallii (ID; 1906)
Trifolium hirtum (WTU; 2017)
Trifolium hybridum (PSM, WS; 1972)
Trifolium incarnatum (WS; 1895)
Trifolium longipes (PSM, WS, WWB; 1975)
var. longipes (WS, WWB; 1899)
Trifolium macraei (WS; 1881)
Trifolium macrocephalum (HPSU, IDS, OSC, PLU, PSM, WCW, WS, WSTC, WTU, WWB; 2011)
Trifolium microcephalum (ID, OSC, PSM, SRP, WS, WTU, WWB; 2019)
Trifolium microdon (ID, OSC, WS, WTU, WWB; 1910)
Trifolium oliganthum (WS; 1885)
Trifolium pratense (PSM, WS, WTU; 2018)
Trifolium repens (PSM, WS, WTU, WWB; 2017)
Trifolium retusum (ID, WTU; 2019)
Trifolium variegatum (CIC, ID, PSM, WS, WTU; 2019)
var. variegatum (WTU; 1935)
Trifolium willdenovii (ID, OSC, PSM, SOC, SRP, WS, WTU, WWB; 2008)
Vicia
Vicia acicularis (WS; 1891)
Vicia americana (HPSU, ID, OSC, PSM, WS, WTU, WWB; 2006)
var. americana (ID, OSC, WS, WTU, WWB; 1997)
var. minor (WS; 1923)
var. pallida (WS; 1892)
Vicia cracca (LINF, PSM, WTU; 2017)
Vicia hirsuta (PSM, WTU; 2009)
Vicia sativa (LINF, OSC, PSM, WCW, WS, WTU; 2014)
var. angustifolia (OSC, WS, WTU; 2014)
Vicia villosa (IDS, OSC, SRP, WS, WTU; 2019)
var. glabrescens (WS, WTU; 2004)
var. villosa (WTU; 2019)
Vicia washingtonensis (WS; 1900)
Xylophacos
Xylophacos ventosus (NY, WS; 1920)

FAGACEAE:
Fagus
Fagus sylvatica (WS; 1922)
Quercus
Quercus garryana (EWU, ID, LINF, OSC, PSM, WS, WSTC, WTU; 2009)
var. garryana (WTU; 2009)
Quercus lobata (WS; 1925)

GARRYACEAE:
Garrya
Garrya fremontii (PSM, WS, WTU; 1972)

GENTIANACEAE:
Centaurium
Centaurium erythraea (WTU; 2019)
Centaurium pulchellum (WS; 1896)
Frasera
Frasera albicaulis (HPSU, ID, OSC, REED, WCW, WS, WTU, WWB; 2009)
var. albicaulis (WS; 1936)
var. columbiana (HPSU, ID, OSC, REED, WS, WTU, WWB; 2009)
var. nitida (WTU; 1954)
Frasera nitida (NY; 1923)
var. albida (NY; 1923)
Gentiana
Gentiana affinis (PSM; 1974)
Gentiana calycosa (WTU; 1892)
Zeltnera
Zeltnera exaltata (ID, OSC, WS, WTU; 1915)
Zeltnera muehlenbergii (PSM, WTU; 1980)

GERANIACEAE:
Erodium
Erodium botrys (OSC; 2013)
Erodium cicutarium (CIC, PSM, REED, WCW, WS, WTU; 2011)
Erodium pimpinellifolium (WTU; 1908)
Geranium
Geranium bicknellii (NY, WS, WTU; 1926)
Geranium carolinianum (PSM, WS, WTU; 1997)
Geranium molle (PSM, REED; 1972)
Geranium purpureum (WTU; 2018)
Geranium pusillum (ID, PSM, WS, WTU; 1972)
Geranium richardsonii (WTU; 2018)
Geranium robertianum (NY, OSC, RM, SRP, WS, WTU; 2016)
Geranium viscosissimum (ID, PSM, REED, WS, WTU; 1975)
var. incisum (ID, WS, WTU; 1938)

GROSSULARIACEAE:
Ribes
Ribes aureum (OSC, SRP, WS, WTU; 2015)
var. aureum (WTU; 2013)
Ribes bracteosum (PSM; 1974)
Ribes cereum (IDS, PLU, WS, WSTC, WTU; 2015)
var. cereum (WS, WTU; 2015)
Ribes divaricatum (HPSU, OSC, PSM, RM, WS, WTU; 2009)
var. divaricatum (HPSU, OSC, RM, WS, WTU; 1973)
Ribes hudsonianum (HPSU; 1973)
Ribes inerme (PLU, PSM; 1974)
Ribes lacustre (PSM, WS, WTU; 2018)
Ribes lobbii (PSM, WS, WTU; 1980)
Ribes montigenum (WS; 1899)
Ribes sanguineum (PSM, WS, WTU; 2012)
Ribes velutinum (PLU; 1973)
Ribes viscosissimum (PLU, PSM, WS; 1977)
Ribes watsonianum (WS; 1923)
Ribes wolfii (PLU; 1974)

HALORAGACEAE:
Myriophyllum
Myriophyllum hippuroides (PSM, WTU; 1981)
Myriophyllum sibiricum (WS; 1923)
Myriophyllum spicatum (WTU; 2005)

HELIOTROPIACEAE:
Heliotropium
Heliotropium curassavicum (WS, WTU; 2017)
var. obovatum (WTU; 1928)

HYDRANGEACEAE:
Philadelphus
Philadelphus lewisii (ID, OSC, PSM, SRP, WS, WTU; 2016)

HYDROPHYLLACEAE:
Hesperochiron
Hesperochiron californicus (HPSU, ID, OSC, WS, WTU; 1975)
Hesperochiron pumilus (OSC, PSM, WS, WTU; 1974)
Hydrophyllum
Hydrophyllum capitatum (CIC, HPSU, IDS, OSC, PSM, REED, WCW, WS, WSTC, WTU; 2011)
var. capitatum (OSC, WTU; 2010)
var. thompsonii (CIC, HPSU, OSC, REED, WCW, WS, WTU; 2011)
Hydrophyllum fendleri (WS; 1899)
var. albifrons (WS; 1899)
Hydrophyllum tenuipes (PSM; 1974)
Hydrophyllum thompsonii (WTU; 1958)
Nemophila
Nemophila breviflora (WS, WTU; 1997)
Nemophila eriocarpa (WTU; 1898)
Nemophila menziesii (NY, WS; 1894)
var. minutiflora (NY, WS; 1894)
Nemophila parviflora (OSC, PSM, REED, WS, WTU; 2010)
var. austiniae (WS, WTU; 1997)
var. parviflora (REED; 1966)
Nemophila pedunculata (OSC, PSM, WS, WTU; 2015)
f. chandleri (WS; 1898)
Nemophila reticulata (WS; 1884)
Phacelia
{Phacelia glandulifera}
Phacelia hastata (ID, LINF, OSC, PSM, WS, WSTC, WTU, WWB; 2019)
var. hastata (ID, LINF, OSC, WS, WTU; 2019)
var. leptosepala (WSTC; 1954)
Phacelia heterophylla (PSM, WS, WTU; 2019)
var. heterophylla (WTU; 2009)
Phacelia linearis (OSC, PSM, WCW, WS, WTU, WWB; 2013)
Phacelia nemoralis (OSC, SRP, WS, WTU; 1987)
Phacelia procera (OSC, WS; 1884)
{Phacelia ramosissima}

HYPERICACEAE:
Hypericum
Hypericum anagalloides (ID, PSM, WS, WTU; 2001)
Hypericum formosum (PSM; 1972)
{Hypericum majus}
Hypericum perforatum (PSM, WS, WTU; 2018)
Hypericum scouleri (WS, WTU; 1997)

JUGLANDACEAE:
Juglans
{Juglans cinerea}
Juglans hindsii (WTU; 2005)
Juglans nigra (WTU; 2018)

LAMIACEAE:
Agastache
Agastache occidentalis (EWU, PSM; 1975)
Agastache urticifolia (WS, WSTC; 1954)
Clinopodium
Clinopodium douglasii (PSM, WS; 1974)
Glechoma
Glechoma hederacea (PSM, WS; 1972)
Lamium
Lamium amplexicaule (HPSU, PSM, WS, WTU; 2010)
Lamium purpureum (PSM, WS, WTU; 2017)
Lycopus
Lycopus americanus (PSM, WS, WTU; 2018)
Lycopus asper (PSM, WS, WTU; 2017)
Lycopus uniflorus (OSC, WS, WTU; 1992)
Marrubium
Marrubium vulgare (PSM, WS, WTU; 2017)
Melissa
Melissa officinalis (WS, WTU; 1926)
Mentha
Mentha aquatica × Mentha spicata (PSM; 1972)
{Mentha arvensis}
Mentha canadensis (OSC, PSM, WS, WTU; 2019)
Mentha ×piperita (OSC; 1985)
Mentha spicata (OSC, PSM, WS, WTU; 2008)
Mentha suaveolens (WS, WTU; 1927)
Monardella
Monardella odoratissima (EWU, HPSU, PSM; 1989)
Nepeta
Nepeta cataria (ID, OSC, PSM, WS, WTU; 2019)
Physostegia
Physostegia parviflora (WS, WTU; 1893)
Prunella
Prunella vulgaris (ID, OSC, PSM, WS, WTU, WWB; 2018)
var. lanceolata (WTU; 2012)
var. vulgaris (WTU; 2018)
Salvia
Salvia dorrii (IDS, PSM, WSTC, WTU; 2016)
{var. dorrii}
var. incana (IDS, WSTC, WTU; 2016)
Salvia officinalis (OSC; 1905)
Salvia pratensis (WS; 1920)
Salvia sclarea (WS; 1909)
Salvia virgata (WTU; 1920)
Scutellaria
Scutellaria angustifolia (OSC, WS, WTU; 2019)
ssp. angustifolia (WS, WTU; 2019)
Scutellaria galericulata (OSC, PSM, WS; 1982)
{Scutellaria lateriflora}
Stachys
Stachys cooleyae (WTU; 2018)
Stachys mexicana (EWU, PSM, WS; 1972)
Stachys pilosa (WS; 1881)
var. pilosa (WS; 1881)
Trichostema
Trichostema oblongum (WS, WTU; 1908)

LENTIBULARIACEAE:
Utricularia
Utricularia intermedia (OSC, WS, WTU; 1893)
Utricularia minor (OSC; 1885)
Utricularia ochroleuca (WS, WTU; 1928)
Utricularia vulgaris (ID, OSC, WS, WTU; 2001)
ssp. macrorhiza (OSC, WTU; 2001)

LINACEAE:
Linum
Linum lewisii (WS; 1899)
var. lewisii (WS; 1899)
Linum perenne (ID; 1993)
Linum usitatissimum (WS; 1911)

LINDERNIACEAE:
Ilysanthes
Ilysanthes gratioloides (NY, WS; 1904)
var. depressa (NY, WS; 1904)
Lindernia
Lindernia dubia (OSC, PSM, WS, WTU; 2018)

LINNAEACEAE:
Linnaea
Linnaea borealis (ID, PLU, WS, WTU, WWB; 2001)
ssp. longiflora (WS, WTU; 1926)

LOASACEAE:
Mentzelia
Mentzelia albicaulis (PSM, WCW, WS, WTU; 2018)
Mentzelia dispersa (OSC, WS, WTU; 1997)
Mentzelia laevicaulis (OSC, PSM, WS, WTU, WWB; 2017)
var. laevicaulis (OSC; 1985)
var. parviflora (WTU; 2017)

LYTHRACEAE:
Ammannia
Ammannia coccinea (WS; 1922)
Ammannia robusta (OSC, WTU; 1922)
Lythrum
Lythrum hyssopifolia (WTU; 2019)
Lythrum portula (WTU; 2007)
Lythrum salicaria (WTU; 2017)
Punica
Punica granatum (WS; 1885)
Rotala
Rotala ramosior (OSC, WS, WTU; 2010)

MALVACEAE:
Abutilon
Abutilon theophrasti (WS, WTU; 1924)
Gossypium
Gossypium hirsutum (OSC; 1988)
Hibiscus
Hibiscus trionum (WS; 1902)
Iliamna
Iliamna rivularis (EWU, HPSU, OSC, PSM, WS, WTU, WWB; 2004)
Malva
Malva neglecta (PSM, WS, WTU; 2017)
Sidalcea
Sidalcea oregana (OSC, PSM, WS, WTU; 1997)
var. oregana (WS, WTU; 1997)
Sphaeralcea
{Sphaeralcea ambigua}
{Sphaeralcea coccinea}
{Sphaeralcea grossulariifolia}
Sphaeralcea munroana (ID, PSM, WTU; 2017)

MAZACEAE:
Mazus
{Mazus pumilus}
{var. pumilus}

MENYANTHACEAE:
Menyanthes
Menyanthes trifoliata (PSM, WS, WTU, WWB; 1980)

MOLLUGINACEAE:
Mollugo
Mollugo verticillata (OSC, PSM, WS, WTU; 1992)

MONTIACEAE:
Calandrinia
Calandrinia ciliata (OSC, WS, WTU; 1914)
Calyptridium
{Calyptridium roseum}
Calyptridium umbellatum (OSC, PSM, WS, WTU; 1972)
Claytonia
Claytonia arenicola (WS; 1905)
Claytonia cordifolia (WS; 1883)
Claytonia cupulata (COLO, NY, WS; 1919)
Claytonia depressa (NY, WS; 1892)
var. arenaria (NY, WS; 1891)
var. interrupta (NY; 1891)
var. latifolia (NY; 1892)
var. silvatica (NY; 1891)
Claytonia exigua (HPSU, PSM, WS, WTU; 2011)
ssp. exigua (HPSU, WS, WTU; 2011)
ssp. glauca (WS, WTU; 2011)
Claytonia lanceolata (HPSU, OSC, PSM, WS, WTU; 1977)
Claytonia parviflora (NY, OSC, PSM, WS, WTU; 2009)
var. hydrophila (NY, WS; 1892)
var. latior (NY, WS; 1892)
var. sparsiflora (NY, WS; 1904)
Claytonia perfoliata (HPSU, ID, LINF, OSC, PSM, REED, SRP, WCW, WS, WTU, WWB; 2013)
Claytonia rubra (OSC, WS, WTU; 2013)
Claytonia sibirica (OSC, PSM, WS, WTU; 2017)
Claytonia spathulata (NY, WS; 1892)
var. disciformis (NY, WS; 1892)
Claytonia washingtoniana (OSC, WS; 1972)
Lewisia
Lewisia cotyledon (WS; 1927)
Lewisia nevadensis (WS; 1899)
Lewisia rediviva (HPSU, OSC, PSM, WS, WSTC, WTU; 2013)
var. rediviva (WTU; 2013)
Lewisia triphylla (WS; 1899)
Montia
Montia chamissoi (OSC, PSM, WS, WTU; 1964)
Montia dichotoma (OSC, PSM, WS, WTU; 2010)
Montia diffusa (WS; 1900)
Montia fontana (HPSU, NY, OSC, PSM, REED, SRP, WS, WTU; 2018)
Montia howellii (WS; 1902)
Montia humilis (NY; 1921)
Montia interrupta (WS; 1891)
Montia latifolia (NY, WS; 1892)
Montia linearis (HPSU, OSC, REED, SRP, WS, WTU; 2019)
Montia parviflora (NY; 1892)
var. hydrophila (NY; 1892)
Montia parvifolia (OSC, REED, WS; 1966)
Phemeranthus
{Phemeranthus spinescens}

MORACEAE:
Maclura
Maclura pomifera (WTU; 2019)
Morus
Morus alba (ID, OSC, PSM, WS, WTU; 2019)

NAMACEAE:
Nama
{Nama densa}
{var. parviflora}

NYCTAGINACEAE:
Abronia
Abronia mellifera (ID, OSC, WS, WTU; 2019)
var. mellifera (WTU; 2019)
Abronia suksdorfii (NY, WS; 1886)

NYMPHAEACEAE:
Nuphar
Nuphar polysepala (PSM, WS; 1972)
Nymphaea
Nymphaea odorata (WTU; 2018)

OLEACEAE:
Fraxinus
Fraxinus latifolia (ID, OSC, PSM, WS, WTU; 1972)
Fraxinus pennsylvanica (WTU; 2019)
Phillyrea
Phillyrea latifolia (OSC; 2005)
Syringa
{Syringa vulgaris}

ONAGRACEAE:
Camissonia
Camissonia contorta (OSC, PSM, WS, WTU; 2019)
{Camissonia parvula}
Camissoniopsis
{Camissoniopsis cheiranthifolia}
{ssp. cheiranthifolia}
Chamaenerion
Chamaenerion angustifolium (PSM, WS, WTU; 2012)
Circaea
Circaea alpina (OSC, PSM, WS; 1993)
ssp. pacifica (WS; 1906)
Clarkia
Clarkia amoena (PSM; 1972)
Clarkia epilobioides (OSC; 1928)
Clarkia gracilis (ID, OSC, WCW, WS, WTU; 2009)
ssp. gracilis (ID, WS, WTU; 2009)
Clarkia pulchella (HPSU, OSC, PSM, WS, WTU; 2018)
Clarkia purpurea (WS; 1962)
ssp. quarivulnera (WS; 1962)
Clarkia quadrivulnera (ID, IDS, OSC, REED, SRP, WCW, WTU; 2019)
Clarkia rhomboidea (ID, OSC, PSM, WS, WTU, WWB; 2018)
Epilobium
Epilobium adscendens (COLO, WS; 1892)
var. canescens (WS; 1892)
Epilobium altissimum (NY, WS; 1925)
Epilobium anagallidifolium (WS; 1899)
Epilobium apricum (NY, WS; 1898)
Epilobium brachycarpum (ID, IDS, MONTU, OSC, PSM, SRP, WCW, WS, WTU; 2017)
Epilobium campestre (WS, WTU; 2018)
Epilobium ciliatum (ID, OSC, PSM, WS, WTU; 2001)
Epilobium clavatum (WS; 1928)
Epilobium densiflorum (HPSU, ID, IDS, NY, OSC, PSM, WCW, WS, WTU; 2019)
Epilobium fasciculatum (NY; 1896)
Epilobium glaberrimum (WS, WTU; 1922)
Epilobium glandulosum (ID, WS, WTU; 1927)
Epilobium halleanum (WS; 1907)
var. teune (WS; 1907)
Epilobium hallianum (ID, IDS, OSC, WS, WTU; 1925)
Epilobium hirsutum (OSC, PSM, SRP, WS, WTU; 1990)
Epilobium hornemannii (WS; 1928)
ssp. hornemannii (WS; 1928)
Epilobium jucundum (NY, WS; 1904)
var. viridifolium (NY, WS; 1904)
Epilobium lactiflorum (WS; 1928)
Epilobium leptocarpum (WS; 1915)
Epilobium minutum (ID, OSC, WCW, WS, WTU; 2018)
Epilobium oregonense (WS, WTU; 1922)
Epilobium palustre (HPSU, WS; 1971)
Epilobium paniculatum (WCW; 1898)
f. adenocladon (WCW; 1898)
Epilobium praecox (NY, WS; 1920)
Epilobium torreyi (PSM, WS, WTU; 2019)
Eremothera
Eremothera boothii (WS, WTU; 1932)
ssp. boothii (WS, WTU; 1932)
Eremothera minor (WS; 1895)
{Eremothera pygmaea}
Gayophytum
Gayophytum decipiens (WS; 1895)
Gayophytum diffusum (ID, OSC, WS, WTU; 1926)
Gayophytum heterozygum (OSC, WS, WTU; 1929)
Gayophytum humile (WS, WTU; 1997)
Gayophytum racemosum (WWB; 1971)
Gayophytum ramosissimum (WS; 1898)
Godetia
Godetia bingensis (WS; 1892)
Godetia gracilis (WTU; 1962)
Godetia quadrivulnera (WTU; 1927)
var. quadrivulnera (WTU; 1927)
Ludwigia
Ludwigia palustris (OSC, WS; 1993)
Neoholmgrenia
Neoholmgrenia andina (ID, OSC, WS, WTU; 1993)
Neoholmgrenia hilgardii (WS; 1925)
Oenothera
Oenothera biennis (ID, IDS, NY, OSC, PSM, WCW, WS, WTU; 2019)
Oenothera cespitosa (WTU; 2011)
ssp. cespitosa (WTU; 2011)
Oenothera curtiflora (PSM, WS, WTU; 1977)
Oenothera elata (OSC, WS, WTU; 1920)
Oenothera glazioviana (PSM, WS; 1972)
Oenothera hookeri (WCW; 1906)
var. wolfii (WCW; 1906)
Oenothera pallida (OSC, PSM, WS, WTU; 2019)
ssp. pallida (OSC, WS, WTU; 2019)
Oenothera wolfii (SRP; 1906)
Taraxia
Taraxia tanacetifolia (ID, OSC, WS, WTU; 1950)

OROBANCHACEAE:
Aphyllon
Aphyllon californicum (WTU; 1911)
ssp. grayanum (WTU; 1911)
Aphyllon corymbosum (WTU; 1980)
Aphyllon fasciculatum (HPSU, IDS, WSTC, WTU; 2018)
Aphyllon ludovicianum (WTU; 2011)
Aphyllon minutum (NY; 1892)
Aphyllon pinorum (WTU; 1899)
Aphyllon purpureum (OSC, WCW, WTU; 2012)
Aphyllon uniflorum (CIC, HPSU, IDS, OSC, PLU, PSM, SRP, WSTC, WTU, WWB; 2017)
Castilleja
Castilleja angustifolia (IDS, OSC, WTU; 1963)
var. angustifolia (WTU; 1938)
Castilleja attenuata (ID, OSC, PSM, WCW, WS, WTU; 2018)
Castilleja elmeri (OSC; 1898)
Castilleja hispida (HPSU, OSC, PLU, PSM, WCW, WS, WTU; 2012)
var. acuta (HPSU, WTU; 2009)
var. hispida (OSC, WS, WTU; 2012)
Castilleja miniata (ID, IDS, OSC, PSM, WS, WTU; 2001)
{Castilleja minor}
{var. exilis}
Castilleja parviflora (OSC; 1882)
var. oreopola (OSC; 1882)
Castilleja pilosa (OSC; 1882)
Castilleja suksdorfii (OSC; 1882)
Castilleja tenuis (ID, WS, WTU; 2018)
Castilleja thompsonii (OSC, WTU; 2013)
Cordylanthus
Cordylanthus capitatus (OSC, WTU; 1884)
Orobanche
Orobanche uniflora (HPSU, REED; 2006)
ssp. purpurea (HPSU, REED; 2006)
Orthocarpus
{Orthocarpus barbatus}
Orthocarpus bracteosus (ID, PSM, WS, WTU; 2003)
Orthocarpus densiusculus (NY; 1905)
Orthocarpus luteus (PSM; 1972)
Orthocarpus tenuifolius (OSC, PSM, WS, WTU; 2017)
Pedicularis
Pedicularis groenlandica (PSM; 1981)
Pedicularis racemosa (PSM; 1972)
Triphysaria
Triphysaria pusilla (OSC, WS, WTU; 1911)

OXALIDACEAE:
Oxalis
Oxalis corniculata (PSM; 1972)
Oxalis dillenii (WTU; 1892)
Oxalis oregana (PSM; 1974)
Oxalis stricta (WTU; 1892)
Oxalis suksdorfii (PSM; 1972)

PAEONIACEAE:
Paeonia
Paeonia brownii (WS, WTU; 1910)

PAPAVERACEAE:
Dicentra
Dicentra cucullaria (HPSU, NY, OSC, WS, WTU; 1972)
Dicentra formosa (LINF; 2008)
Eschscholzia
Eschscholzia californica (HPSU, ID, LINF, OSC, PSM, WCW, WS, WTU; 2017)
ssp. californica (WTU; 2009)
Glaucium
Glaucium corniculatum (WS; 1906)
Meconella
Meconella oregana (OSC, WS, WTU; 1991)
Papaver
Papaver argemone (ID, PSM, WTU; 2011)
Papaver somniferum (WS; 1907)
Romneya
Romneya coulteri (WS; 1926)

PHRYMACEAE:
Diplacus
Diplacus cusickii (WS, WTU; 1997)
Diplacus douglasii (WS; 1891)
Diplacus nanus (OSC, WS; 1899)
Erythranthe
Erythranthe alsinoides (HPSU, OSC, WCW, WS, WTU; 2009)
Erythranthe breviflora (WS, WTU; 2017)
Erythranthe breweri (WS, WTU; 1899)
Erythranthe dentata (WWB; 1980)
Erythranthe floribunda (ID, MONTU, NY, OSC, RM, WS, WTU; 2018)
{Erythranthe grandis}
Erythranthe guttata (CIC, HPSU, ID, OSC, PLU, REED, SRP, WCW, WS, WTU; 2011)
Erythranthe inflatula (NY, WS; 1991)
Erythranthe jungermannioides (NY, WS, WTU; 1892)
Erythranthe lewisii (EWU, OSC, PLU, WS, WTU; 2001)
Erythranthe microphylla (OSC, REED, WS, WTU; 2018)
Erythranthe microphylla × Erythranthe nasuta (WTU; 2018)
Erythranthe moschata (EWU, PLU, WS, WTU; 2018)
Erythranthe nasuta (OSC, WTU; 2017)
Erythranthe primuloides (WS, WTU, WWB; 1926)
Erythranthe pulsiferae (WS, WTU; 1980)
Erythranthe suksdorfii (WS; 1913)
Erythranthe washingtonensis (NY, OSC, WS, WTU; 1929)
Mimetanthe
Mimetanthe pilosa (WS; 1925)
Mimulus
Mimulus breviflorus (WS; 1906)
ssp. breviflorus (WS; 1906)
Mimulus ringens (WTU; 2018)
{var. ringens}
Mimulus washingtonensis (WS; 1923)
ssp. washingtonensis (WS; 1923)

PHYTOLACCACEAE:
Phytolacca
Phytolacca americana (WS, WTU; 2002)

PLANTAGINACEAE:
Bacopa
{Bacopa rotundifolia}
Callitriche
Callitriche hermaphroditica (WS; 1886)
Callitriche heterophylla (WS, WTU; 1920)
var. bolanderi (WTU; 1920)
Callitriche palustris (PSM, WS; 1972)
{Callitriche stagnalis}
Collinsia
Collinsia childii (ID, WS, WTU; 1929)
Collinsia grandiflora (OSC, PSM, WS, WTU; 2016)
Collinsia parviflora (CIC, HPSU, ID, OSC, PSM, SRP, WCW, WS, WSTC, WTU, WWB; 2017)
Collinsia rattanii (ID, OSC, PSM, WCW, WS, WTU; 2017)
Collinsia sparsiflora (CIC, HPSU, ID, OSC, WS, WTU; 1976)
var. sparsiflora (WTU; 1896)
Cymbalaria
{Cymbalaria muralis}
Gratiola
Gratiola ebracteata (ID, WS, WTU; 2001)
Gratiola neglecta (OSC, WS, WTU; 2018)
Hippuris
Hippuris vulgaris (PSM; 1973)
Linaria
Linaria dalmatica (OSC, PSM, WS, WTU; 2014)
{ssp. dalmatica}
Linaria grandiflora (WTU; 1984)
Linaria vulgaris (PSM, WTU; 2013)
Nothochelone
Nothochelone nemorosa (WS, WTU; 2018)
Penstemon
Penstemon acuminatus (WS, WTU; 2019)
var. acuminatus (WTU; 2019)
Penstemon attenuatus (OSC, WTU; 2014)
var. attenuatus (WTU; 2014)
Penstemon barrettiae (HPSU, ID, LEA, NY, OSC, PLU, WS, WTU; 2014)
Penstemon cinicola (PLU; 1972)
Penstemon confertus (WS, WTU; 1898)
{Penstemon cusickii}
Penstemon davidsonii (WTU; 1892)
var. davidsonii (WTU; 1892)
Penstemon deustus (COLO, ID, NY, OSC, PSM, WS, WTU; 1981)
var. variabilis (COLO, ID, NY, OSC, WS, WTU; 1981)
Penstemon diphyllus (OSC, PLU; 1982)
Penstemon ellipticus (PLU; 1972)
Penstemon eriantherus (OSC, WTU; 2011)
var. whitedii (WTU; 2011)
Penstemon fruticosus (WS; 1927)
var. fruticosus (WS; 1923)
var. scouleri (WS; 1927)
Penstemon gairdneri (HPSU, OSC, WS, WSTC, WTU; 1989)
var. gairdneri (WS, WTU; 1977)
Penstemon glandulosus (NY, PSM, WS, WTU; 2010)
{var. chelanensis}
var. glandulosus (NY, WTU; 2010)
Penstemon hartwegii (WS; 1877)
Penstemon humilis (NY, WS, WTU; 2004)
var. humilis (NY; 1938)
Penstemon ovatus (NY, PLU, WS; 1972)
Penstemon paniculatus (WS; 1879)
Penstemon peckii (PLU; 1972)
Penstemon procerus (HPSU, WS; 2016)
var. procerus (HPSU, WS; 2016)
Penstemon pruinosus (NY; 1882)
Penstemon richardsonii (CIC, ID, IDS, NY, OSC, WTU; 2013)
var. richardsonii (CIC, ID, NY, OSC, WTU; 2013)
Penstemon rumilis (WWB; 1980)
Penstemon rydbergii (ID, WTU; 2001)
var. oreocharis (WTU; 2001)
Penstemon serrulatus (PLU; 1972)
Penstemon speciosus (NY, WS, WTU; 1994)
Penstemon subserratus (HPSU, NY, OSC, WS, WTU; 2006)
Penstemon triphyllus (NY, WS, WTU; 1895)
Penstemon venustus (WS; 1918)
Plantago
Plantago elongata (WTU; 2018)
Plantago lanceolata (OSC, PSM, RM, SRP, WS, WTU; 2012)
Plantago major (PSM, WS, WTU; 2017)
Plantago patagonica (OSC, PSM, WS, WTU; 2019)
Plantago pusilla (WS; 1903)
Synthyris
Synthyris missurica (WTU; 1935)
var. stellata (WTU; 1935)
Tonella
Tonella collinsioides (WS; 1907)
Tonella floribunda (WS, WTU; 1935)
Tonella tenella (HPSU, OSC, SRP, WTU; 2011)
Veronica
Veronica americana (ID, OSC, PSM, WS, WTU; 2017)
Veronica anagallis-aquatica (OSC, PSM, SRP, WS, WTU; 2018)
Veronica arvensis (PSM, WS, WTU; 2019)
Veronica catenata (WTU; 1921)
Veronica missurica (OSC, PSM, WS, WTU; 1980)
ssp. stellata (OSC, WS, WTU; 1949)
Veronica peregrina (PSM, WS, WTU; 2018)
var. xalapensis (WS, WTU; 2018)
Veronica persica (PSM, WTU; 2018)
Veronica rubra (WTU; 1891)
Veronica salicifolia (WS; 1883)
Veronica scutellata (OSC, PSM, WS, WTU, WWB; 2001)
Veronica serpyllifolia (PSM, WS; 1972)
var. humifusa (WS; 1899)
Veronica undulata (WS; 1945)
Veronica wormskjoldii (WS, WTU; 1899)

PLATANACEAE:
Platanus
{Platanus occidentalis}

POLEMONIACEAE:
Aliciella
Aliciella leptomeria (WS; 1982)
{Aliciella lottiae}
Collomia
Collomia grandiflora (ID, PSM, REED, WCW, WS, WTU, WWB; 2013)
Collomia heterophylla (ID, PSM, WS, WTU; 2017)
Collomia larsenii (WTU; 1892)
Collomia linearis (REED, WS, WTU; 1973)
Collomia tinctoria (OSC; 1885)
Eriastrum
Eriastrum sparsiflorum (PSM; 1972)
{Eriastrum wilcoxii}
Gilia
Gilia achilleifolia (WS; 1918)
ssp. multicaulis (WS; 1918)
Gilia capitata (ID, OSC, PSM, REED, WS, WTU, WWB; 2019)
ssp. capitata (ID, WTU; 2019)
Gilia gracilis (WS; 1892)
var. elatior (WS; 1892)
var. pratensis (WS; 1892)
Gilia heterophylla (WTU; 1906)
{Gilia inconspicua}
Gilia klickitatensis (NY; 1890)
Gilia sinuata (OSC, WS, WTU; 2017)
Ipomopsis
Ipomopsis aggregata (HPSU, PSM, REED, WS, WTU; 2018)
ssp. aggregata (HPSU, REED, WTU; 2018)
Leptosiphon
Leptosiphon bicolor (HPSU, PSM, WTU; 2010)
Leptosiphon bolanderi (WS, WTU; 2011)
Leptosiphon harknessii (OSC, WS; 1904)
Leptosiphon liniflorus (WS; 1904)
Leptosiphon nuttallii (PSM; 1933)
Linanthus
{Linanthus pungens}
Microgilia
Microgilia minutiflora (ID, OSC, WS, WTU; 1928)
Microsteris
Microsteris gracilis (HPSU, ID, OSC, PSM, REED, SRP, WCW, WS, WSTC, WTU; 2019)
Navarretia
Navarretia capillaris (WS; 1884)
Navarretia divaricata (WS, WTU; 1908)
ssp. divaricata (WTU; 1908)
Navarretia intertexta (ID, OSC, PSM, WS, WTU; 2018)
Navarretia leucocephala (WS, WTU; 1896)
ssp. minima (WS, WTU; 1896)
Navarretia propinqua (WTU; 1911)
Navarretia squarrosa (PSM, WTU; 2012)
Navarretia tagetina (ID, OSC, REED, WS, WTU; 2019)
Phlox
Phlox caespitosa (OSC, WS, WSTC, WTU; 2013)
Phlox diffusa (WS, WTU; 1892)
Phlox gracilis (WS; 1953)
var. humilis (WS; 1953)
Phlox hoodii (OSC, PSM, WS, WTU; 2015)
ssp. canescens (OSC, WS, WTU; 1998)
Phlox longifolia (HPSU, ID, OSC, REED, WS, WTU, WWB; 2019)
Phlox speciosa (HPSU, NY, OSC, PSM, WS, WTU; 2017)
var. suksdorfii (NY; 1886)
Phlox suksdorfii (WS; 1886)
Phlox viscida (OSC, PSM, WS; 1991)
Polemonium
Polemonium californicum (OSC, WTU; 1906)
Polemonium micranthum (ID, OSC, PSM, WS, WSTC, WTU; 2009)
Polemonium pulcherrimum (WS; 1899)

POLYGONACEAE:
Aconogonon
Aconogonon phytolaccifolium (WTU; 1892)
var. phytolaccifolium (WTU; 1892)
Bistorta
Bistorta bistortoides (PSM, WS, WTU; 2017)
Chorizanthe
{Chorizanthe watsonii}
Eriogonum
Eriogonum baileyi (PSM; 1972)
{var. praebens}
{Eriogonum cernuum}
{Eriogonum codium}
Eriogonum compositum (HPSU, ID, LINF, OSC, PSM, REED, SRP, WCW, WS, WTU, WWB; 2019)
var. compositum (LINF, OSC, WS, WTU, WWB; 2019)
{var. lancifolium}
var. leianthum (WS, WTU; 1988)
Eriogonum douglasii (ID, PSM, WTU; 2018)
var. douglasii (WTU; 2018)
Eriogonum elatum (OSC, PSM, SRP, WS, WTU; 2013)
var. elatum (WTU; 1987)
Eriogonum heracleoides (OSC, PSM, WS, WTU; 2018)
Eriogonum incanum (HPSU; 1881)
Eriogonum microtheca (WTU; 2011)
var. laxiflorum (WTU; 2011)
Eriogonum niveum (CIC, OSC, PSM, SRP, WS, WTU; 2004)
Eriogonum nudum (HPSU, PSM; 1972)
Eriogonum ovalifolium (WS; 1886)
var. nivale (WS; 1886)
Eriogonum pyrolifolium (WTU; 1892)
Eriogonum sphaerocephalum (HPSU, ID, NY, OSC, WS, WTU; 2017)
var. sphaerocephalum (WS, WTU; 2010)
var. sublineare (HPSU, ID, NY, OSC, WS, WTU; 2009)
var. tenue (HPSU, OSC; 1952)
Eriogonum strictum (ID, OSC, PSM, WS, WTU, WWB; 2012)
var. anserinum (WTU, WWB; 2009)
var. proliferum (OSC, WS, WTU; 2012)
{var. strictum}
Eriogonum thymoides (HPSU, OSC, SRP, WS, WTU; 2013)
Eriogonum umbellatum (WS; 1909)
var. haussknechtii (WS; 1909)
Eriogonum vimineum (WS, WSTC, WTU; 1997)
Fallopia
Fallopia convolvulus (WS; 1891)
Fallopia sachalinensis (OSC, SRP; 1992)
Oxytheca
{Oxytheca dendroidea}
{ssp. dendroidea}
Persicaria
Persicaria amphibia (ID, OSC, PSM, WS, WTU; 2019)
Persicaria hydropiper (OSC, PSM, WS, WTU; 2019)
Persicaria hydropiperoides (ID, PSM, WS, WTU; 1974)
Persicaria lapathifolia (PSM, WS, WTU; 2012)
Persicaria maculosa (ID, OSC, PSM, SRP, WS, WTU; 1992)
Persicaria punctata (ID, OSC, WS, WTU; 1920)
Polygonum
Polygonum arenicola (NY, WS, WTU; 1910)
Polygonum aviculare (OSC, PSM, WS, WTU; 2018)
{ssp. aviculare}
ssp. buxiforme (WTU; 2018)
ssp. depressum (WTU; 2007)
Polygonum californicum (ID, WS, WTU; 1927)
Polygonum douglasii (PSM, WS, WTU, WWB; 1974)
Polygonum erectum (PSM, WS; 1972)
Polygonum kelloggii (NY; 1893)
var. watsonii (NY; 1893)
Polygonum majus (ID, OSC, SRP, WS, WTU; 2010)
Polygonum paronychia (OSC; 1882)
Polygonum parryi (WS, WTU; 1886)
Polygonum polygaloides (PSM, WS, WTU; 2010)
ssp. confertiflorum (WS, WTU; 2004)
ssp. kelloggii (WS, WTU; 2010)
Polygonum ramosissimum (OSC, PSM, WS, WTU; 1977)
Polygonum sawatchense (ID, OSC, WS, WTU; 1909)
ssp. sawatchense (WTU; 1909)
Polygonum spergulariiforme (WS; ?)
Rumex
Rumex acetosa (WCW; 1996)
Rumex acetosella (HPSU, PSM, REED, WS, WTU; 2015)
Rumex aquaticus (PSM; 1973)
Rumex crispus (PSM, WTU; 2019)
Rumex obtusifolius (PSM; 1972)
Rumex occidentalis (WTU; 1891)
Rumex salicifolius (NY, OSC, PSM, REED, WS, WTU; 2018)
var. angustivalvis (NY, OSC, WTU; 1909)
var. denticulatus (WTU; 1893)
var. triangulivalvis (WTU; 2018)
Rumex stenophyllus (WTU; 2019)
Rumex venosus (ID, LINF, OSC, PSM, WS, WTU; 2019)

PORTULACACEAE:
Portulaca
Portulaca oleracea (PSM, WS, WTU; 2017)

PRIMULACEAE:
Androsace
Androsace filiformis (WS; 1905)
Dodecatheon
Dodecatheon alpinum (OSC; 1926)
Dodecatheon conjugens (ID, IDS, OSC, WS, WSTC, WTU; 2010)
Dodecatheon hendersonii (WS; 1893)
var. leptophyllum (WS; 1893)
Dodecatheon poeticum (CIC, HPSU, ID, OSC, PSM, REED, WS, WTU; 2006)
Dodecatheon pulchellum (WS, WTU; 2013)
var. cusickii (WTU; 2013)
var. pulchellum (WS, WTU; 2011)
Douglasia
Douglasia laevigata (OSC; 1932)
Lysimachia
Lysimachia ciliata (ID, OSC, WS, WTU; 1897)
Lysimachia latifolia (HPSU, ID, OSC, PLU, WS, WTU; 2017)
Lysimachia minima (WS, WTU; 2018)
Lysimachia nummularia (WS; 1907)
Lysimachia thyrsiflora (WS, WTU; 1927)
Steironema
Steironema ciliatum (NY; 1896)
var. occidentale (NY; 1896)

RANUNCULACEAE:
Actaea
Actaea elata (WS; 1909)
Actaea rubra (PSM, WS, WTU; 1974)
Adonis
Adonis aestivalis (WS; 1886)
Anemone
Anemone deltoidea (PLU, WS, WTU, WWB; 2014)
Anemone lyallii (WS, WTU; 1922)
Anemone oregana (HPSU, PLU, WS; 1989)
var. oregana (WS; 1989)
Aquilegia
Aquilegia formosa (EWU, HPSU, OSC, PSM, REED, WS, WTU, WWB; 2014)
{var. formosa}
Caltha
Caltha leptosepala (HPSU; 1882)
Ceratocephala
Ceratocephala testiculata (OSC, PSM, WSTC, WTU; 2015)
Clematis
Clematis ligusticifolia (ID, OSC, PLU, PSM, WS, WTU; 2010)
Delphinium
Delphinium ×burkei (ID, WS; 1886)
Delphinium depauperatum (PLU; 1975)
Delphinium distichum (OSC, WS, WTU; 2019)
Delphinium lineapetalum (COLO, REED, RM, WS, WTU; 1998)
Delphinium menziesii (HPSU, OSC, PLU, WS, WSTC; 1975)
Delphinium multiplex (WS, WTU; 2017)
Delphinium nuttallianum (CIC, HPSU, OSC, PSM, REED, WCW, WS, WSTC, WTU; 2011)
Delphinium nuttallii (ID, OSC, REED, WS, WTU; 2006)
Delphinium trolliifolium (WTU; 1935)
Halerpestes
Halerpestes cymbalaria (OSC, WS, WTU; 1915)
Myosuros
Myosuros minimus (WTU; 2017)
Myosurus
Myosurus ×alopecuroides (WTU; 2018)
Myosurus apetalus (WS, WTU; 1934)
var. borealis (WTU; 1934)
Myosurus minimus (OSC, PSM, WS, WTU; 2019)
Myosurus sessilis (WTU; 2018)
Ranunculus
Ranunculus alismifolius (HPSU, ID, OSC, PSM, WS, WTU; 2009)
var. alismifolius (ID, WS, WTU; 2009)
var. hartwegii (WS, WTU; 1915)
Ranunculus aquatilis (OSC, PSM, WS, WTU, WWB; 2017)
var. aquatilis (WS, WTU; 1918)
var. diffusus (OSC, WS, WTU, WWB; 2017)
Ranunculus bulbosus (WS; 1911)
Ranunculus eschscholtzii (HPSU; 1884)
var. suksdorfii (HPSU; 1884)
Ranunculus flabellaris (WS; 1891)
var. flabellaris (WS; 1891)
Ranunculus flammula (HPSU, PSM, WS, WTU, WWB; 2019)
var. ovalis (WS, WTU; 2001)
var. ovata (WS; 1998)
var. reptans (WTU; 1894)
Ranunculus glaberrimus (ID, IDS, OSC, PSM, REED, WS, WTU; 2010)
var. ellipticus (ID, OSC, WS, WTU; 1977)
var. glaberrimus (WS, WTU; 2010)
Ranunculus gmelinii (WS; 1985)
Ranunculus grayi (WTU; 2009)
Ranunculus hebecarpus (WS, WTU; 2019)
Ranunculus macounii (ID, OSC, PSM, REED, WS, WTU, WWB; 1980)
Ranunculus muricatus (OSC, WS, WTU; 1929)
Ranunculus occidentalis (CIC, HPSU, OSC, PSM, REED, WCW, WS, WTU; 2010)
var. laevicaulis (WS; 1896)
var. occidentalis (CIC, WCW, WS, WTU; 2010)
Ranunculus orthorhynchus (PSM, WS, WTU; 2001)
var. orthorhynchus (WTU; 2001)
var. platyphyllus (WS; 1932)
Ranunculus pensylvanicus (WS; 1882)
Ranunculus repens (PSM; 1972)
Ranunculus sceleratus (OSC, PSM, SRP, WS, WTU; 2018)
var. multifidus (OSC, SRP, WS, WTU; 2014)
var. sceleratus (WTU; 2018)
Ranunculus triternatus (HPSU, NY, OSC, WS, WTU; 2010)
Ranunculus uncinatus (HPSU, OSC, PSM, WS, WTU, WWB; 2006)
Thalictrum
Thalictrum occidentale (PSM, WS, WTU; 1976)
Trautvetteria
Trautvetteria caroliniensis (PSM, WS, WWB; 1980)

RESEDACEAE:
Reseda
Reseda luteola (WTU; 2012)

RHAMNACEAE:
Ceanothus
Ceanothus cuneatus (WTU; 2015)
Ceanothus integerrimus (HPSU, ID, OSC, PLU, PSM, REED, SRP, WCW, WS, WTU; 2010)
Ceanothus prostratus (HPSU, ID, OSC, PLU, WS, WTU; 2014)
var. prostratus (WTU; 2014)
Ceanothus sanguineus (OSC, PSM, WS, WTU; 2015)
Ceanothus thyrsiflorus (WCW; 1948)
Ceanothus velutinus (EWU, ID, OSC, PSM, WS, WTU; 2014)
{var. laevigatus}
var. velutinus (OSC, WS, WTU; 2014)
Frangula
Frangula purshiana (PSM, WS; 1972)

ROSACEAE:
Acaena
Acaena trifida (WS; 1919)
Agrimonia
{Agrimonia repens}
Amelanchier
Amelanchier alnifolia (ID, MONTU, NY, OSC, PSM, WCW, WS, WTU; 2011)
Amelanchier utahensis (OSC; 1919)
Aphanes
Aphanes arvensis (WS, WTU; 2003)
Aphanes occidentalis (WTU; 2019)
Aruncus
Aruncus dioicus (PSM, WS, WTU; 2012)
var. vulgaris (WS, WTU; 2012)
Chaenomeles
Chaenomeles japonica (WS; 1881)
Comarum
Comarum palustre (PSM, WS, WTU; 1972)
Crataegus
Crataegus castlegarensis (HPSU, WCW; 2019)
Crataegus chrysocarpa (OSC, WS, WTU; 2019)
var. piperi (OSC, WS, WTU; 2007)
Crataegus douglasii (OSC, PSM, WS, WTU; 2013)
Crataegus gaylussacia (OSC, WS, WTU; 2002)
{Crataegus monogyna}
Crataegus okennonii (WTU; 2019)
Drymocallis
Drymocallis amplifolia (NY; 1893)
{Drymocallis arguta}
Drymocallis glandulosa (NY, OSC, PSM, WS, WTU; 2017)
ssp. glabrata (WTU; 1935)
ssp. glandulosa (NY, WTU; 2017)
Fragaria
Fragaria ×ananassa (WS; 1907)
Fragaria vesca (PSM, WS, WTU; 2009)
ssp. californica (WS, WTU; 2009)
Fragaria virginiana (PSM, WCW, WS, WTU; 1998)
ssp. glauca (WCW, WS, WTU; 1998)
Geum
Geum macrophyllum (PSM, WS, WTU; 2018)
Geum triflorum (OSC, PSM, WCW, WS, WSTC, WTU; 1978)
Holodiscus
Holodiscus discolor (HPSU, ID, PSM, WS, WTU, WWB; 2012)
Holodiscus microphyllus (WTU; 2018)
var. glabrescens (WTU; 2018)
Horkelia
Horkelia fusca (ID, OSC, PSM, WS, WTU, WWB; 2014)
var. fusca (ID, OSC, WS, WTU, WWB; 2014)
Ivesia
{Ivesia tweedyi}
Malus
Malus domestica (WTU; 2019)
Malus fusca (OSC, PSM, WCW, WTU; 1972)
Malus pumila (WS, WTU; 2016)
Oemleria
Oemleria cerasiformis (OSC, WS, WTU; 1919)
Physocarpus
Physocarpus capitatus (ID, PSM, REED, WS, WTU; 2019)
Potentilla
{Potentilla anglica}
Potentilla anserina (PSM; 1974)
Potentilla biennis (OSC, WS, WTU; 1997)
Potentilla drummondii (OSC, WCW, WS, WTU; 1911)
Potentilla flabellifolia (WTU; 1892)
Potentilla glaucophylla (HPSU; 1970)
Potentilla gracilis (ID, OSC, PSM, WS, WTU; 2001)
var. gracilis (OSC, WS, WTU; 1923)
Potentilla newberryi (OSC, WS, WTU; 1898)
Potentilla norvegica (WS, WTU; 2019)
Potentilla recta (WTU; 2018)
Potentilla rivalis (OSC, PSM, WS, WTU; 1998)
Potentilla supina (OSC, WS, WTU; 1898)
ssp. paradoxa (OSC, WS, WTU; 1898)
Poteridium
Poteridium annuum (HPSU, ID, OSC, PSM, WS, WTU; 2009)
Poterium
Poterium sanguisorba (ID, OSC, SRP, WS, WTU; 1988)
var. polygamum (ID, OSC, SRP, WS, WTU; 1988)
Prunus
{Prunus armeniaca}
Prunus avium (OSC, WTU; 2019)
Prunus cerasifera (WS, WTU; 2020)
Prunus domestica (WTU; 2002)
Prunus dulcis (WTU; 2012)
Prunus emarginata (ID, OSC, PSM, REED, SRP, WCW, WS, WTU; 2012)
Prunus mahaleb (OSC, WTU; 2019)
Prunus persica (WTU; 2017)
Prunus ×pugetensis (OSC, WTU; 2004)
Prunus pumila (WS; 1921)
var. besseyi (WS; 1921)
Prunus virginiana (MONTU, NY, OSC, PSM, WS, WTU; 2011)
Purshia
Purshia tridentata (HPSU, ID, OSC, PSM, WS, WTU; 2019)
var. tridentata (OSC, WTU; 2019)
Pyracantha
{Pyracantha coccinea}
Pyrus
Pyrus communis (WTU; 1906)
Rosa
Rosa canina (ID, RM, WTU; 2016)
Rosa gymnocarpa (PSM, WS, WTU, WWB; 1980)
ssp. helleri (WTU; 1911)
Rosa nutkana (NY, OSC, PSM, WS, WTU; 2014)
ssp. macdougalii (NY, OSC, WS, WTU; 2014)
Rosa pisocarpa (OSC, WS, WTU, WWB; 1923)
Rosa rubiginosa (PSM, WS; 1972)
Rosa woodsii (HPSU, ID, OSC, WS, WTU; 2017)
var. montana (WTU; 1911)
Rubus
Rubus armeniacus (PSM, WTU; 2019)
Rubus bifrons (WS, WTU; 2016)
Rubus laciniatus (PLU, WS, WTU; 2019)
Rubus leucodermis (PSM, WS; 1974)
Rubus parviflorus (HPSU, ID, OSC, PSM, WS, WTU; 2014)
Rubus sachalinensis (WS; 1903)
var. sachalinensis (WS; 1903)
Rubus spectabilis (PSM, WS; 1974)
Rubus ursinus (OSC, PSM, WS, WTU; 2010)
Rubus vestitus (WTU; 2005)
Sorbus
Sorbus aucuparia (WS; 1920)
Sorbus scopulina (PSM; 1977)
Spiraea
Spiraea betulifolia × Spiraea douglasii (PSM; 1974)
Spiraea betulifolia × Spiraea menziesii (WS; 1924)
Spiraea convexa (NY, WS; 1923)
Spiraea douglasii (ID, OSC, PSM, WS, WTU; 2019)
var. douglasii (ID, OSC, WTU; 2001)
var. menziesii (ID, WS, WTU; 2019)
var. roseata (OSC; 1907)
Spiraea hydrophila (NY, WS; 1924)
Spiraea lucida (ID, PSM, WS, WTU, WWB; 2017)
Spiraea ×pyramidata (ID, OSC, WS, WTU; 2010)
Spiraea splendens (HPSU; 1968)

RUBIACEAE:
Cruciata
Cruciata pedemontana (ID, WTU; 2001)
Galium
Galium aparine (CIC, ID, IDS, LINF, PSM, WCW, WS, WTU; 2012)
Galium boreale (ID, OSC, PSM, WS, WTU; 2001)
Galium humifusum (WS, WTU; 1926)
Galium humifusum × Galium verum (WS, WTU; 1916)
Galium mexicanum (PSM, WS; 1972)
ssp. asperulum (WS; 1886)
Galium mollugo (WTU; 2000)
Galium oreganum (WS; 1923)
Galium palustre (WTU; 2000)
Galium serpenticum (OSC, WTU; 2013)
ssp. serpenticum (OSC; 1891)
Galium trifidum (ID, OSC, PSM, WS, WTU; 2018)
Galium triflorum (ID, OSC, PSM, WS, WTU; 2001)
Galium verum (PSM; 1973)
Kelloggia
Kelloggia galioides (ID, PSM, WS, WTU; 2018)

SALICACEAE:
Populus
Populus alba (WTU; 2018)
Populus deltoides (ID, IDS, OSC, PSM, SRP, WTU; 2019)
ssp. monilifera (ID, IDS, OSC, WTU; 2019)
{Populus ×hastata}
Populus nigra (WTU; 2018)
Populus tremuloides (OSC, PSM, WS, WTU; 1976)
Populus trichocarpa (ID, OSC, PSM, SRP, WS, WTU; 2019)
Salix
Salix amygdaloides (OSC, PSM, WS, WTU; 2019)
Salix bebbiana (OSC, PSM, WS, WTU; 1973)
Salix boothii (OSC, PSM, WS; 1973)
Salix columbiana × Salix exigua (WTU; 2002)
Salix ×dieckiana (NY, WS; 1919)
Salix drummondiana (WS; 1899)
Salix eriocephala (WS, WTU; 1920)
Salix exigua (ID, OSC, PSM, SRP, WS, WSTC, WTU; 2019)
var. columbiana (OSC, SRP, WS, WTU; 2002)
Salix exigua var. columbiana × Salix exigua var. sessilifolia (WTU; 1920)
var. exigua (OSC, WS, WTU; 2019)
Salix exigua var. exigua > Salix exigua var. columbiana (WTU; 1925)
Salix exigua × Salix sessilifolia (WS, WTU; 1920)
Salix fluviatilis × Salix melanopsis (WTU; 1920)
Salix fragilis (WS; 1920)
Salix geyeriana (ID, WS, WTU, WWB; 2001)
var. macrogemma (ID, WTU; 2001)
Salix hookeriana (WS, WTU; 1924)
Salix lasiandra (OSC, SRP, WS, WTU, WWB; 2019)
var. caudata (WTU; 2019)
var. lasiandra (OSC, SRP, WS, WTU; 1922)
Salix lasiolepis (ID, OSC, PSM, SRP, WS, WSTC, WTU; 2018)
Salix lucida (OSC, PSM; 1977)
{Salix lutea}
Salix melanopsis (WS; 1920)
Salix pedicellaris (WS, WTU; 1922)
Salix prolixa (OSC, PSM, WS, WSTC, WTU; 2019)
Salix scouleriana (ID, OSC, PSM, SRP, WS, WSTC, WTU, WWB; 1980)
Salix ×sepulchralis (WTU; 2007)
Salix ×sepulcralis (WS; 1922)
Salix sessilifolia (OSC, PSM, WS, WTU; 1973)
Salix sitchensis (PSM, WS, WTU; 1975)

SANTALACEAE:
Arceuthobium
Arceuthobium abietinum (WS, WTU; 1898)
Arceuthobium americanum (PSM, WS, WTU; 1972)
Arceuthobium campylopodum (OSC, PSM, WS, WSTC, WTU, WWB; 1975)
f. campylopodium (WS; 1975)
Arceuthobium laricis (WS, WTU; 1908)
Comandra
Comandra umbellata (HPSU, ID, IDS, OSC, PSM, WS, WTU; 2011)
ssp. californica (HPSU, ID, OSC, WS, WTU; 2001)
ssp. pallida (WS, WTU; 2011)
ssp. umbellata (WS; 1989)

SAPINDACEAE:
Acer
Acer circinatum (ID, OSC, PSM, REED, SRP, WCW, WS, WTU; 2001)
Acer glabrum (WS, WTU; 2009)
var. douglasii (WS, WTU; 2009)
Acer macrophyllum (CIC, ID, LINF, OSC, WCW, WS, WTU; 2018)
{Acer negundo}
{Acer platanoides}
{Acer pseudoplatanus}
Acer saccharinum (WTU; 2018)

SARCOBATACEAE:
Sarcobatus
Sarcobatus vermiculatus (WTU; 2013)

SAXIFRAGACEAE:
Bolandra
Bolandra oregana (ID, WS, WTU; 1909)
Heuchera
Heuchera chlorantha (WS, WTU; 2009)
Heuchera cylindrica (PSM, WS, WTU; 2010)
Heuchera grossulariifolia (PSM, WS, WTU; 2013)
var. tenuifolia (WTU; 2013)
Heuchera micrantha (OSC, PSM, WS, WWB; 1980)
var. micrantha (OSC, WS, WWB; 1980)
Heuchera parvifolia (WS; 1919)
{Heuchera sanguinea}
Lithophragma
Lithophragma glabrum (HPSU, IDS, OSC, PSM, SRP, WCW, WS, WSTC, WTU; 2012)
Lithophragma parviflorum (CIC, HPSU, ID, IDS, OSC, PSM, REED, SRP, WCW, WS, WTU; 2013)
Lithophragma tenella (NY; 1904)
var. florida (NY; 1904)
var. ramulosa (NY; 1904)
Lithophragma tenellum (WS, WTU; 2011)
var. ramulosum (WS; 1904)
Micranthes
Micranthes apetala (ID, WSTC; 1965)
Micranthes fragosa (ID, NY, OSC, SRP, WCW, WS, WTU; 2004)
Micranthes idahoensis (OSC, WS; 1898)
Micranthes integrifolia (HPSU, ID, IDS, OSC, PLU, PSM, REED, WCW, WS, WTU; 2011)
Micranthes marshallii (WS, WTU; 1901)
Micranthes nidifica (CIC, NY, OSC, REED, WS, WTU; 1981)
Micranthes occidentalis (OSC, WCW, WS; 1998)
Micranthes odontoloma (PSM, WS; 1972)
Micranthes oregana (OSC, PSM, WS, WTU; 1982)
Micranthes rhomboidea (PSM; 1972)
Micranthes rufidula (HPSU, ID, OSC, SRP, WS, WTU; 2006)
Micranthes virginiensis (WS; 1909)
Mitellastra
Mitellastra caulescens (WS; 1883)
Ozomelis
Ozomelis diversifolia (PSM, WS, WTU; 1974)
Ozomelis trifida (WS; 1897)
Pectiantia
Pectiantia pentandra (PSM; 1972)
Saxifraga
Saxifraga bracteosa (WS; 1904)
var. leptopetala (WS; 1904)
Saxifraga bronchialis (WTU; 1892)
Saxifraga integrifolia × Saxifraga rufidula (WTU; 1958)
Saxifraga marshallii (WS; 1920)
ssp. marshallii (WS; 1920)
Saxifraga mertensiana (ID, OSC, REED, WS, WTU; 2012)
Suksdorfia
Suksdorfia violacea (OSC, WS, WTU; 1934)
Tellima
Tellima grandiflora (ID, PSM, REED, WS, WTU; 2017)
Tiarella
Tiarella trifoliata (WS; 1906)
var. trifoliata (WS; 1897)
var. unifoliata (WS; 1906)

SCROPHULARIACEAE:
Limosella
Limosella acaulis (WTU; 2017)
Limosella aquatica (WS, WTU; 1992)
Scrophularia
Scrophularia californica (PSM; 1972)
Scrophularia lanceolata (WS, WWB; 1980)
Verbascum
Verbascum blattaria (ID, OSC, PSM, WS, WTU; 1972)
Verbascum thapsus (OSC, PSM, WCW, WS, WTU; 2018)

SIMAROUBACEAE:
Ailanthus
Ailanthus altissima (ID, OSC, RM, SRP, WS; 1987)

SOLANACEAE:
Datura
Datura discolor (SRP, WS; 1987)
Datura wrightii (OSC, WTU; 2019)
Lycium
{Lycium barbarum}
{Lycium chinense}
Nicotiana
Nicotiana acuminata (WS, WTU; 1929)
var. multiflora (WTU; 1923)
Nicotiana attenuata (IDE, OSC, WS, WSTC, WTU; 1987)
Nicotiana caesia (NY; 1922)
Physalis
Physalis grisea (WS, WTU; 1917)
Physalis ixocarpa (WS; 1894)
{var. immaculata}
Physalis longifolia (WS; 1894)
Physalis philadelphica (OSC, WTU; 1894)
{Physalis pubescens}
Solanum
Solanum americanum (WS, WTU; 1917)
{Solanum carolinense}
Solanum dulcamara (HPSU, ID, IDS, OSC, PSM, WS, WTU, WWB; 2001)
Solanum furcatum (WS; 1894)
Solanum nigrum (PSM, WTU; 1976)
{ssp. nigrum}
Solanum physalifolium (PSM, WTU; 1972)
{Solanum rostratum}
Solanum sarachoides (WS, WTU; 1899)
Solanum triflorum (NY, OSC, WS, WTU; 2007)

TAMARICACEAE:
Tamarix
Tamarix parviflora (WTU; 2017)
Tamarix ramosissima (WTU; 2005)

ULMACEAE:
Ulmus
{Ulmus americana}
{Ulmus glabra}
{Ulmus parvifolia}
Ulmus pumila (WTU; 2017)

URTICACEAE:
Parietaria
Parietaria pensylvanica (WS, WTU; 2017)
Urtica
Urtica dioica (PSM, WS, WTU, WWB; 2019)
ssp. gracilis (WS, WTU, WWB; 1980)
ssp. holosericea (WS, WTU; 2019)

VALERIANACEAE:
Aligera
Aligera barbata (NY, WS; 1910)
Aligera bimaculata (WS; 1910)
Aligera glabrata (WS; 1925)
Aligera glabrior (NY, WS; 1925)
Aligera intermedia (NY, WS; 1925)
Aligera macroptera (WS; 1878)
Aligera novicularis (WS; 1923)
Aligera rubens (WS; 1882)
Aligera versatilis (WS; 1925)
Plectritis
Plectritis anomala (NY, WS; 1926)
var. lactiflora (NY, WS; 1926)
Plectritis brachystemon (OSC, WS, WTU; 1938)
Plectritis ciliosa (HPSU, OSC, PSM, WS, WTU; 2009)
ssp. ciliosa (WS; 1925)
ssp. insignis (WS, WTU; 1927)
Plectritis congesta (CIC, HPSU, ID, OSC, PSM, WS, WTU; 2014)
var. alba (WS; 1894)
Plectritis gibbosa (NY, WS; 1898)
Plectritis involuta (WS; 1884)
Plectritis macrocera (LINF, OSC, PSM, REED, WS, WSTC, WTU; 2013)
ssp. grayii (WS, WTU; 1980)
Valeriana
Valeriana columbiana (OSC; 1935)
Valeriana scouleri (WS, WTU; 1920)
Valeriana sitchensis (PSM, WTU; 1977)
Valerianella
Valerianella anomala (WS; 1882)
Valerianella aphanoptera (WS; 1882)
Valerianella congesta (WTU; 1949)
Valerianella locusta (HPSU, ID, PSM, WTU; 2017)

VERBENACEAE:
Verbena
Verbena ×bingenensis (NY, WS; 1898)
Verbena bracteata (OSC, PSM, SRP, WS, WTU; 2017)
Verbena bracteata × Verbena hastata (WTU; 1898)
Verbena hastata (WS; 1926)

VIOLACEAE:
Viola
Viola adunca (PSM, WS, WTU; 1970)
Viola arvensis (WS, WTU; 2009)
Viola glabella (HPSU, OSC, PSM, WS, WTU; 2015)
Viola howellii (ID, NY, WS, WTU; 2014)
Viola nephrophylla (WS; 1886)
Viola nuttallii (HPSU, OSC, REED, WCW, WS, WSTC, WTU; 2010)
var. bakeri (REED, WS, WTU; 2010)
var. praemorsa (OSC, WS, WSTC, WTU; 1951)
var. vallicola (OSC, WCW, WS, WSTC, WTU; 2010)
Viola odorata (WTU; 2010)
Viola palustris (WS, WTU; 1923)
Viola praemorsa × Viola purpurea (WTU; 1935)
Viola purpurea (REED, WS, WTU, WWB; 1971)
ssp. purpurea (REED; 1965)
ssp. quercetorum (WS; 1892)
ssp. venosa (WS, WTU; 1955)
Viola sempervirens (WS; 1897)
Viola sheltonii (HPSU, OSC, REED, WCW, WS, WTU; 1980)
{Viola tricolor}
Viola trinervata (HPSU, ID, IDS, OSC, WCW, WS, WSTC, WTU; 2013)
Viola xylorrhiza (NY, WS; 1919)

VITACEAE:
Parthenocissus
Parthenocissus vitacea (WTU; 2019)
Vitis
Vitis labrusca × Vitis vinifera (WTU; 2019)
Vitis vinifera (OSC, WS, WTU; 2007)

ZYGOPHYLLACEAE:
Tribulus
Tribulus terrestris (HPSU, ID, IDS, OSC, PSM, SRP, WS, WTU; 2008)
Zygophyllum
{Zygophyllum fabago}


MONOCOTS:

ALISMATACEAE:
Alisma
Alisma gramineum (OSC, WS, WTU; 1904)
Alisma plantago-aquatica (ID, WTU; 2017)
Alisma triviale (PSM, WS, WTU; 2019)
Damasonium
Damasonium californicum (WTU; 2019)
Sagittaria
Sagittaria arifolia (WS; 1885)
var. stricta (WS; 1885)
Sagittaria cuneata (OSC, WS, WTU; 1993)
Sagittaria latifolia (PSM, WS, WTU; 2018)

AMARYLLIDACEAE:
Allium
Allium acuminatum (ID, OSC, PSM, WCW, WS, WTU, WWB; 2019)
Allium amplectens (WS; 1980)
{Allium cernuum}
Allium douglasii (MONT, PSM; 1961)
{Allium geyeri}
Allium macrum (WS, WTU; 1982)
Allium madidum (HPSU; 1879)
Allium nevii (REED, WS, WSTC, WTU; 2010)
{Allium robinsonii}
{Allium schoenoprasum}
Allium scilloides (WS, WTU; 1942)
{Allium tolmiei}
{var. tolmiei}
Galanthus
Galanthus nivalis (WS; 1886)
Narcissus
Narcissus odora (WS; 1882)

ARACEAE:
Lemna
Lemna minor (WS; 1896)
Lemna turionifera (ID, WS, WTU; 1886)
Lysichiton
Lysichiton americanus (PSM, WS, WTU; 2016)
Spirodela
Spirodela polyrhiza (WS, WTU; 2018)

ASPARAGACEAE:
Asparagus
Asparagus officinalis (ID, OSC, PSM, WS, WTU; 2019)
Asparagus setaceus (WS; 1917)
Brodiaea
Brodiaea californica (LINF; 2007)
Brodiaea coronaria (ID, OSC, REED, WS, WTU; 2013)
Camassia
Camassia cusickii (WTU; 2019)
Camassia leichtlinii (ID, NY, OSC, PLU, WS, WTU; 1961)
ssp. suksdorfii (ID, NY, OSC, WS, WTU; 1902)
Camassia quamash (HPSU, ID, OSC, PSM, WCW, WS, WTU; 2012)
ssp. breviflora (OSC, WTU; 2011)
ssp. maxima (WS; 1954)
ssp. quamash (WS, WTU; 1954)
ssp. suksdorfii (WS; 1880)
Convallaria
Convallaria majalis (WS; 1883)
Dichelostemma
Dichelostemma congestum (ID, PSM, WCW, WS, WTU, WWB; 2008)
Maianthemum
Maianthemum dilatatum (WS; 1898)
Maianthemum racemosum (PSM, WS, WTU; 2010)
ssp. amplexicaule (WS, WTU; 2010)
Maianthemum stellatum (PSM, WS, WTU, WWB; 2015)
Triteleia
Triteleia grandiflora (HPSU, ID, IDS, OSC, PSM, SRP, WCW, WS, WTU; 2019)
var. grandiflora (WTU; 2019)
var. howelli (SRP; 1989)
var. howellii (HPSU, ID, IDS, OSC, WCW, WS, WTU; 2009)
Triteleia hyacinthina (HPSU, ID, OSC, PSM, SRP, WCW, WS, WTU, WWB; 2007)
Yucca
Yucca baccata (WTU; 2001)
{Yucca glauca}

BUTOMACEAE:
Butomus
Butomus umbellatus (WTU; 2019)

CYPERACEAE:
Bolboschoenus
Bolboschoenus fluviatilis (WTU; 1982)
Bolboschoenus maritimus (WS, WTU; 1909)
ssp. paludosus (WS, WTU; 1909)
Carex
Carex amplifolia (HPSU, ID, NY, PSM, WS, WTU; 1997)
Carex angustata (NY, OSC, PSM, WS, WTU; 2013)
Carex aperta (NY, PSM, WS, WTU; 1972)
f. hydroessa (NY; 1909)
f. mimetica (WS; 1914)
Carex aquatilis (PSM, WS, WWB; 1980)
var. dives (WS, WWB; 1980)
Carex arcta (ID, PSM, WS, WWB; 1980)
Carex athrostachya (ID, OSC, WS, WTU; 2017)
Carex aurea (OSC, PSM, WS, WTU; 2011)
Carex bebbii (WS; 1905)
Carex bolanderi (IDS, OSC, WS; 1919)
Carex brevior (WS; 1908)
Carex canescens (OSC, PSM, WS, WTU, WWB; 1980)
Carex concinnoides (WTU; 1923)
Carex cusickii (PSM, WS, WTU; 2001)
Carex deweyana (ID, PSM, WWB; 1980)
Carex disperma (WS; 1895)
Carex douglasii (ID, OSC, WS, WTU; 2011)
Carex echinata (PSM, WS, WTU; 1982)
ssp. echinata (WS, WTU; 1918)
Carex exsiccata (PSM, WS, WWB; 1980)
Carex feta (ID, PSM, WS, WTU; 2017)
Carex filifolia (WS; 1884)
var. filifolia (WS; 1884)
Carex fracta (WS, WTU; 2011)
Carex garberi (ID, WS; 1909)
Carex geyeri (IDS, OSC, PSM, WS, WTU; 2009)
Carex hassei (WS; 1909)
Carex hendersonii (OSC, WS; 2011)
Carex hoodii (ID, OSC, PSM, WS, WTU; 1974)
Carex hystericina (ID, OSC, WTU; 2017)
Carex idahoensis (WTU; 1892)
Carex illota (WTU; 1892)
Carex inops (ID, OSC, WS, WTU; 2008)
ssp. inops (OSC, WS, WTU; 2008)
Carex interior (PSM, WS; 1973)
Carex interrupta (OSC, PSM, WS, WTU; 1979)
Carex kelloggii (ID, MONTU, WS, WTU; 1923)
var. impressa (ID; 1905)
var. kelloggii (WS, WTU; 1923)
Carex laeviculmis (PSM, WS, WTU; 1972)
Carex lasiocarpa (OSC, PSM, WS, WTU, WWB; 1996)
Carex lenticularis (WTU, WWB; 1980)
Carex leptalea (WS; 1881)
Carex leptopoda (WS; 1885)
Carex limosa (WS; 1881)
Carex luzulifolia (WTU; 1892)
Carex macloviana (WS; 1886)
Carex marcida (ID; 1905)
Carex mertensii (PSM, WS; 1972)
Carex microptera (ID, WS, WTU, WWB; 1997)
Carex nebrascensis (ID, NY, OSC, PSM, WS, WTU; 2001)
var. erucaeformis (NY; 1919)
Carex nigricans (WTU; 1892)
Carex nudata (MONTU, NY, OSC, PSM, RM, WS, WTU; 1972)
Carex obnupta (WS, WTU; 2017)
Carex olympica (RM, WS; 1908)
Carex ovalis (PSM; 1974)
Carex pachycarpa (WTU; 1908)
Carex pachystachya (ID, OSC, WS, WTU, WWB; 2011)
ssp. pachystachya (WS, WTU; 1908)
Carex pellita (OSC, WS; 1911)
Carex petasata (WS; 1890)
Carex podocarpa (OSC, WS; 1917)
Carex praeceptorum (OSC; 1917)
Carex praegracilis (IDS, OSC, SRP, WS, WTU; 2019)
Carex praticola (WS; 1911)
Carex preslii (OSC; 1993)
Carex raynoldsii (OSC; 1917)
Carex retrorsa (PSM, WS, WTU; 2019)
Carex rossii (WS; 1924)
Carex simulata (OSC, WS, WTU; 2011)
Carex spectabilis (WTU; 1892)
Carex stipata (ID, OSC, PSM, WS, WTU, WWB; 2017)
var. stipata (OSC, WS, WTU; 1905)
Carex straminea (ID; 1907)
Carex subfusca (ID, WTU; 2011)
Carex tenera (WS; 1885)
Carex tumulicola (ID, OSC, WS, WTU; 1899)
Carex unilateralis (PSM, WS, WTU; 1972)
Carex utriculata (ID, PSM, WS, WTU; 2001)
Carex vesicaria (ID, WS, WTU; 2001)
Carex vulpinoidea (WS, WTU; 2017)
Cyperus
Cyperus acuminatus (WS; 1911)
Cyperus bipartitus (ID, PSM, WTU; 2007)
{Cyperus diandrus}
Cyperus eragrostis (WS; 1911)
Cyperus erythrorhizos (WS, WTU; 1935)
Cyperus esculentus (WS; 1893)
var. leptostachyus (WS; 1893)
{Cyperus fuscus}
Cyperus schweinitzii (WTU; 1989)
Cyperus squarrosus (ID, IDS, OSC, PSM, REED, SOC, SRP, WCW, WS, WTU; 2018)
Cyperus strigosus (PSM, WS, WTU; 1989)
Dulichium
Dulichium arundinaceum (ID, OSC, PSM, WS, WTU; 1977)
Eleocharis
Eleocharis acicularis (ID, WS; 1898)
Eleocharis bella (WS; 1904)
Eleocharis bolanderi (WS; 1998)
{Eleocharis coloradoensis}
Eleocharis engelmannii (WS; 1904)
Eleocharis macrostachya (OSC, WS, WTU; 2018)
Eleocharis obtusa (OSC, SRP, WS, WTU; 2007)
Eleocharis ovata (ID, IDS, OSC, PSM, WS, WTU; 1972)
Eleocharis palustris (ID, IDS, OSC, SRP, WCW, WS, WTU, WWB; 2019)
{Eleocharis parvula}
Eleocharis quinqueflora (ID, OSC, PSM, SRP, WTU; 1972)
Eleocharis rostellata (OSC; 1882)
Eleocharis suksdorfiana (WS, WTU; 1919)
Eriophorum
Eriophorum angustifolium (ID, IDS, OSC, WS, WTU; 1972)
ssp. angustifolium (ID, IDS, OSC, WS, WTU; 1972)
Lipocarpha
Lipocarpha aristulata (NY, OSC, WTU; 2007)
Lipocarpha drummondii (WS; 1912)
Lipocarpha micrantha (ID, OSC, WS, WTU; 1894)
Lipocarpha occidentalis (OSC, WS; 1886)
Schoenoplectus
Schoenoplectus acutus (WS, WTU; 2018)
Schoenoplectus americanus (WS; 1904)
Schoenoplectus pungens (OSC, WTU; 2018)
Schoenoplectus subterminalis (OSC, WS; 1882)
Schoenoplectus tabernaemontani (OSC, PSM, SRP, WS, WTU; 1993)
Scirpus
Scirpus atrovirens (WS; 1926)
{Scirpus cyperinus}
Scirpus microcarpus (PSM, WS, WTU; 1997)
Scirpus pallidus (WS; 1896)

HYDROCHARITACEAE:
Elodea
Elodea canadensis (OSC, WS; 1992)
Elodea nuttallii (WTU; 2017)
Najas
{Najas canadensis}
Najas flexilis (WS, WTU; 1909)
Vallisneria
Vallisneria americana (OSC, WS; 1998)

IRIDACEAE:
Iris
Iris missouriensis (MONT, OSC, WS, WTU; 1960)
Iris pseudacorus (PSM; 1968)
Olsynium
Olsynium douglasii (CIC, HPSU, ID, IDS, MONT, OSC, PSM, REED, SRP, WCW, WS, WTU; 2013)
var. douglasii (ID, MONT, OSC, SRP, WCW, WS, WTU; 2012)
var. inflatum (CIC, ID, IDS, SRP, WTU; 1977)
Sisyrinchium
Sisyrinchium californicum (WS; 1917)
Sisyrinchium idahoense (HPSU, WS, WTU; 2001)
var. idahoense (WS, WTU; 2001)
Sisyrinchium sarmentosum (HPSU, WS, WTU; 2001)

JUNCACEAE:
Juncus
Juncus acuminatus (PSM, WS, WTU; 1974)
Juncus alpinoarticulatus (ID, OSC, WS, WTU; 1896)
Juncus arcticus (PSM; 1974)
Juncus articulatus (OSC, WS, WTU; 2018)
ssp. articulatus (WTU; 2007)
Juncus balticus (CIC, COLO, ID, IDS, NY, OSC, WCW, WS, WTU, WWB; 1997)
ssp. ater (CIC, COLO, NY, OSC, WS, WTU, WWB; 1997)
ssp. littoralis (WCW; 1905)
Juncus bufonius (ID, IDS, OSC, PSM, WCW, WS, WTU, WWB; 1997)
var. bufonius (WTU; 1997)
var. congestus (OSC; 1907)
Juncus compressus (OSC, WTU; 2013)
Juncus confusus (WS, WTU; 2011)
Juncus covillei (ID, OSC, PSM, WS, WTU; 1981)
Juncus dudleyi (CIC, ID, OSC, WS, WTU; 2009)
Juncus effusus (CIC, OSC, PSM, WS, WTU; 2007)
ssp. effusus (WTU; 1997)
ssp. pacificus (CIC, OSC, WS, WTU; 2007)
ssp. solutus (WTU; 2007)
Juncus ensifolius (ID, PSM, WS, WTU; 2008)
Juncus hemiendytus (WS, WTU; 1996)
var. hemiendytus (WS, WTU; 1996)
Juncus inflexus (WTU; 2018)
ssp. inflexus (WTU; 2018)
Juncus interior (CIC, WTU; 2018)
Juncus kelloggii (HPSU, ID, OSC, WS; 1971)
Juncus laccatus (WS, WTU; 2001)
Juncus longistylis (ID, WS; 1987)
Juncus mertensianus (WS; 1896)
Juncus nevadensis (ID, OSC, PSM, WS, WTU, WWB; 2010)
var. nevadensis (ID, OSC, WS, WTU, WWB; 2010)
Juncus nodosus (PSM, WS, WTU; 1976)
Juncus occidentalis (WS, WTU; 2011)
Juncus orthophyllus (COLO, MONTU, NY, OSC, PSM, WS, WTU; 2010)
var. congestus (COLO, NY, OSC, WS; 1908)
Juncus oxymeris (PSM; 1972)
Juncus patens (PSM; 1972)
Juncus regelii (ID, OSC, WS, WTU; 1914)
Juncus saximontanus (WS, WTU; 1915)
Juncus tenuis (PSM, WS, WTU; 2019)
Juncus torreyi (CIC, HPSU, ID, OSC, WS, WTU; 2019)
Juncus trilocularis (CIC, ID, OSC, RM, WS, WTU; 2019)
Juncus uncialis (WTU; 2019)
Luzula
Luzula comosa (WS, WTU; 2010)
Luzula macrantha (ID, WTU; 2009)
Luzula macrantha × Luzula subsessilis (WTU; 2009)
Luzula multiflora (HPSU, PSM, WS; 2017)
Luzula parviflora (PSM, WS, WTU; 1972)
Luzula subsessilis (WS; 1907)

JUNCAGINACEAE:
Triglochin
Triglochin maritima (WS; 1906)

LILIACEAE:
Calochortus
Calochortus longebarbatus (HPSU, ID, OSC, WS, WTU; 2010)
Calochortus macrocarpus (OSC, PSM, WS; 1982)
Calochortus subalpinus (HPSU, OSC, WS, WTU, WWB; 1980)
Clintonia
Clintonia uniflora (HPSU, PSM, WS, WTU; 2014)
Erythronium
Erythronium grandiflorum (PSM, WCW, WS, WTU; 2011)
f. pallidum (WTU; 1935)
var. grandiflorum (WS, WTU; 2011)
var. pallidum (WCW, WTU; 1938)
Fritillaria
Fritillaria affinis (HPSU, OSC, PSM, REED, WS, WTU; 2008)
Fritillaria atropurpurea (WS; 1988)
Fritillaria oredoxa (WS; 1907)
Fritillaria pudica (HPSU, OSC, PSM, WCW, WS, WTU; 2016)
Lilium
Lilium columbianum (PSM, WS, WTU; 2012)
Prosartes
Prosartes hookeri (OSC, PSM, WS, WTU; 1998)
Prosartes smithii (PSM; 1970)
Streptopus
Streptopus amplexifolius (PSM, WS; 1977)
Streptopus lanceolatus (OSC; 1879)

MELANTHIACEAE:
Toxicoscordion
Toxicoscordion paniculatum (HPSU, OSC, WCW, WS, WTU; 2019)
Toxicoscordion venenosum (HPSU, OSC, PSM, WCW, WS, WTU; 2006)
var. gramineum (WS; 1975)
var. venenosum (WS, WTU; 1997)
Trillium
Trillium chloropetalum (WS; 1895)
var. giganteum (WS; 1895)
Trillium ovatum (OSC, PSM, WS, WTU; 2010)
var. ovatum (WTU; 1906)
Veratrum
Veratrum californicum (PSM, WS, WTU; 1978)
var. caudatum (WS, WTU; 1923)
Veratrum insolitum (OSC, PSM, WTU, WWB; 1982)
Veratrum viride (HPSU; 1968)
var. eschscholzianum (HPSU; 1968)

ORCHIDACEAE:
Calypso
Calypso bulbosa (PSM, WS, WTU; 2010)
var. occidentalis (WS; 1937)
Cephalanthera
Cephalanthera austiniae (ID, OSC, WS, WWB; 2001)
Corallorhiza
Corallorhiza maculata (OSC, PSM, WS, WTU; 2015)
var. maculata (OSC, WS; 1927)
var. occidentalis (OSC, WS; 1906)
Corallorhiza mertensiana (PSM, WS, WWB; 1980)
Corallorhiza striata (HPSU, PSM, WS, WTU; 2015)
var. striata (WS, WTU; 2009)
var. vreelandii (WS; 1899)
Cypripedium
Cypripedium fasciculatum (PLU; 1969)
Cypripedium montanum (HPSU, ID, PSM, WS, WTU; 2014)
Epipactis
Epipactis gigantea (WS, WTU; 2017)
Goodyera
Goodyera oblongifolia (PSM, WS; 1968)
Liparis
Liparis loeselii (WS, WTU; 1982)
Neottia
Neottia banksiana (PSM, WS; 1968)
Neottia convallarioides (OSC, PSM, WS; 1968)
Neottia cordata (WS; 1906)
Platanthera
Platanthera dilatata (PSM, WS, WTU; 2000)
var. leucostachys (WS; 1911)
Platanthera elegans (OSC, PSM, WS; 1993)
Platanthera elongata (OSC; 1993)
Platanthera sparsiflora (PSM, WTU; 2018)
Platanthera stricta (WS; 1927)
Platanthera transversa (WTU; 1966)
Platanthera unalascensis (OSC, PSM, WS, WTU, WWB; 2000)
Spiranthes
Spiranthes porrifolia (OSC, WS, WTU; 2018)
Spiranthes romanzoffiana (OSC, PSM, WS, WTU; 2018)

POACEAE:
Achnatherum
Achnatherum hymenoides (CIC, OSC, PSM, WS, WTU; 2019)
Achnatherum lemmonii (ID, OSC, WS, WTU; 2009)
ssp. lemmonii (OSC, WS, WTU; 2009)
ssp. pubescens (WS, WTU; 2000)
Achnatherum nelsonii (WS; 1884)
ssp. dorei (WS; 1884)
Achnatherum occidentale (OSC, PSM, SRP, WS, WTU; 1992)
ssp. occidentale (WS; 1962)
ssp. pubescens (WS, WTU; 1962)
Achnatherum thurberianum (WTU; 2010)
Aegilops
Aegilops cylindrica (OSC, WTU; 2013)
Agropyron
Agropyron cristatum (PSM, WTU; 2017)
Agropyron glaucum × Agropyron spicatum (WTU; 1906)
Agrostis
Agrostis alba (WTU; 1997)
Agrostis exarata (ID, OSC, PSM, WS, WTU; 2010)
var. ampla (ID, OSC; 1903)
Agrostis gigantea (PSM; 1972)
Agrostis idahoensis (ID; 1906)
Agrostis microphylla (WS, WTU; 1910)
Agrostis oregonensis (ID, OSC, WS, WTU; 1909)
Agrostis pallens (WS, WTU; 1909)
Agrostis perennans (WTU; 1884)
Agrostis scabra (WS, WTU; 1905)
Agrostis stolonifera (ID, OSC, PSM, WS, WTU, WWB; 1980)
Aira
Aira caryophyllea (ID, WS, WTU; 1906)
var. caryophyllea (WS; 1906)
Alopecurus
Alopecurus aequalis (WS, WTU, WWB; 1980)
var. aequalis (WS, WTU; 1923)
Alopecurus carolinianus (WS; 1899)
Alopecurus geniculatus (PSM, WS, WTU; 1974)
Alopecurus pratensis (HPSU, PSM, WTU, WWB; 1980)
Alopecurus saccatus (ID, OSC, WS, WTU; 2019)
Anthoxanthum
Anthoxanthum aristatum (IDE, WS; 1992)
ssp. aristatum (WS; 1912)
Anthoxanthum odoratum (PSM, WS; 1972)
Apera
Apera interrupta (PSM; 1972)
Aristida
{Aristida purpurea}
{var. longiseta}
Arrhenatherum
Arrhenatherum elatius (PSM, WS, WTU; 1972)
ssp. elatius (WS; 1963)
Avena
Avena barbata (WS, WTU; 1909)
Avena fatua (PSM, WS, WTU; 1972)
Avena sativa (WS, WTU; 1919)
Beckmannia
Beckmannia syzigachne (WS; 1896)
Bromus
Bromus arenarius (WS; 1928)
Bromus berteroanus (PSM; 1977)
Bromus briziformis (PSM, WS, WTU; 1972)
Bromus ciliatus (PSM; 1972)
Bromus commutatus (WS, WTU; 2009)
Bromus commutatus × Bromus hordeaceus (WTU; 1892)
Bromus diandrus (HPSU, OSC, PSM, SRP, WS, WTU; 2019)
Bromus hordeaceus (PSM, WS, WTU; 1972)
Bromus inermis (PSM, WS, WTU; 2009)
Bromus japonicus (ID, WS, WTU; 1997)
Bromus laevipes (ID, OSC; 1896)
Bromus madritensis (WS; 1928)
Bromus orcuttianus (ID, OSC, PSM, WS, WTU; 1974)
Bromus ×pseudothominii (WTU; 1963)
Bromus rubens (WS, WTU; 2011)
Bromus secalinus (WS, WTU; 2009)
Bromus sitchensis (ID, OSC, PSM, WS, WTU; 2009)
var. carinatus (ID, OSC, WS, WTU; 2009)
var. marginatus (ID, OSC, WS, WTU; 1938)
Bromus sterilis (HPSU, WS, WTU; 2018)
Bromus suksdorfii (PSM; 1973)
Bromus tectorum (ID, NY, OSC, PSM, WS, WTU; 2019)
Bromus vulgaris (PSM, WS, WTU; 2009)
Calamagrostis
Calamagrostis canadensis (PSM, WS, WTU; 1974)
var. canadensis (WS, WTU; 1903)
Calamagrostis howellii (WS; 1891)
Calamagrostis purpurascens (WS; 1923)
Calamagrostis rubescens (OSC, PSM, WS, WTU; 1972)
Calamagrostis stricta (WS, WTU; 1885)
ssp. inexpansa (WS, WTU; 1885)
var. inexpansa (WTU; 1885)
Cenchrus
Cenchrus longispinus (OSC, PSM, WTU; 2013)
{Cenchrus spinifex}
Cinna
Cinna latifolia (WS, WWB; 1980)
Coleanthus
Coleanthus subtilis (OSC, WS; 1905)
Crypsis
Crypsis alopecuroides (OSC, WTU; 2007)
Cynodon
Cynodon dactylon (WS, WTU; 2005)
Cynosurus
Cynosurus echinatus (ID, OSC, PSM, SRP, WS, WTU, WWB; 2001)
Dactylis
Dactylis glomerata (PSM, WS, WTU; 2017)
Danthonia
Danthonia californica (ID, OSC, PSM, WS, WTU; 1974)
Danthonia intermedia (WS, WTU; 2013)
Danthonia unispicata (OSC; ?)
Deschampsia
Deschampsia cespitosa (OSC, PSM, WS; 1974)
Deschampsia danthonioides (ID, PSM, WS, WTU; 2019)
Deschampsia elongata (OSC, PSM, WS, WTU; 2000)
Dichanthelium
Dichanthelium acuminatum (ID, OSC, PSM, WS, WTU; 1973)
ssp. acuminatum (ID; 1905)
ssp. fasciculatum (OSC, WS, WTU; 1917)
ssp. lindheimeri (WTU; 1905)
Dichanthelium oligosanthes (OSC, WS; 1896)
ssp. scribnerianum (OSC, WS; 1896)
Digitaria
Digitaria ischaemum (WS; 1901)
Digitaria sanguinalis (PSM, WS, WTU; 2013)
Diplachne
Diplachne fusca (WS; 1929)
ssp. fascicularis (WS; 1929)
Distichlis
Distichlis spicata (CIC, ID, OSC, WS, WTU; 2011)
Echinochloa
Echinochloa crus-galli (ID, OSC, PSM, WS, WTU; 1980)
Echinochloa muricata (OSC, RM, WS, WTU; 1903)
var. microstachya (RM, WS, WTU; 1903)
var. muricata (WS; 1894)
Elyhordeum
×Elyhordeum macounii (OSC; 1919)
Elyleymus
×Elyleymus aristatus (ID, SRP, WS, WTU; 1919)
Elymus
{Elymus caninus}
Elymus elymoides (OSC, PSM, WS, WTU, WWB; 2006)
ssp. brevifolius (WTU; 1892)
ssp. elymoides (WS, WTU; 2006)
{ssp. hordeoides}
Elymus glaucus (COLO, MONTU, NY, OSC, PSM, WS, WTU; 2009)
ssp. glaucus (COLO, MONTU, NY, WS, WTU; 2009)
Elymus glaucus × Hordeum nodosum (WTU; 1905)
Elymus glaucus × Sitanion (WTU; 1902)
Elymus glaucus × Sitanion hystrix (WTU; 1923)
Elymus ×hansenii (OSC, WS, WTU; 1924)
Elymus lanceolatus (WS, WTU; 2019)
ssp. lanceolatus (WS, WTU; 2019)
ssp. psammophilus (WTU; 2018)
Elymus multisetus (OSC, PSM, SRP, WS, WTU; 1992)
Elymus repens (PSM, WS, WTU; 1997)
Elymus trachycaulus (OSC, PSM, WS, WTU; 1974)
ssp. trachycaulus (OSC, WS, WTU; 1915)
Elymus violaceus (WS; 1906)
Eragrostis
{Eragrostis cilianensis}
Eragrostis hypnoides (WS, WTU; 1915)
{Eragrostis lutescens}
{Eragrostis mexicana}
{ssp. virescens}
Eragrostis pectinacea (PSM, WS, WTU; 2018)
var. pectinacea (WS, WTU; 2018)
Festuca
Festuca brachyphylla (WS; 1899)
ssp. brachyphylla (WS; 1899)
Festuca campestris (WS; 1915)
Festuca idahoensis (ID, OSC, PSM, WS, WTU; 2010)
Festuca occidentalis (PSM, WS, WTU; 1972)
Festuca ovina (PSM; 1972)
Festuca roemeri (ID; 2001)
Festuca rubra (WS, WTU; 2017)
ssp. rubra (WS, WTU; 1912)
Festuca saximontana (WS; 1883)
var. saximontana (WS; 1883)
Festuca subulata (PSM, WS, WTU; 2019)
Festuca subuliflora (ID, NY, OSC, WS, WTU; 1908)
Festuca valesiaca (OSC, WTU; 2009)
Festuca viridula (WS; 1884)
{Festuca washingtonica}
Glyceria
Glyceria borealis (PSM, WS, WTU; 2019)
Glyceria elata (WS, WTU, WWB; 1980)
Glyceria fluitans (WS; 1885)
Glyceria grandis (PSM, WS; 2009)
Glyceria ×occidentalis (WS, WTU; 1912)
Glyceria striata (PSM, WS; 1974)
Hesperostipa
Hesperostipa comata (ID, NY, OSC, PSM, WS, WTU; 2019)
ssp. comata (NY, OSC, WS, WTU; 2019)
Hierochloe
Hierochloe odorata (ID, OSC, WS, WTU; 1903)
Holcus
Holcus lanatus (PSM, WS; 1972)
Hordeum
Hordeum brachyantherum (PSM, WS; 1973)
Hordeum jubatum (ID, OSC, WS, WTU; 2000)
ssp. intermedium (WS; 1915)
ssp. jubatum (WS; 2000)
Hordeum marinum (OSC, PSM, WS, WTU; 2019)
ssp. gussoneanum (OSC, WS, WTU; 2019)
Hordeum murinum (HPSU, PSM, WS, WTU; 2019)
ssp. glaucum (WTU; 2011)
ssp. leporinum (HPSU, WS; 2003)
ssp. murinum (WTU; 2019)
Hordeum vulgare (PSM, WS, WTU; 2011)
Koeleria
Koeleria macrantha (ID, OSC, PSM, WS, WTU; 2001)
Leersia
Leersia oryzoides (WS, WTU; 2018)
Leymus
Leymus cinereus (PSM, WS, WTU; 2018)
Leymus condensatus (OSC, WTU; 2019)
Leymus flavescens (WS, WTU; 1927)
Leymus triticoides (ID, MONTU, NY, OSC, WS, WTU; 1922)
Lolium
Lolium multiflorum (WS; 1918)
Lolium perenne (PSM, WS; 1974)
Lolium temulentum (OSC, WS, WTU; 1907)
ssp. temulentum (WS; 1907)
Melica
Melica bulbosa (OSC, PSM, WS; 1972)
Melica fugax (ID, NY, WS, WTU; 1982)
Melica harfordii (ID, NY, OSC, SRP, WS, WTU; 1963)
Melica spectabilis (WTU; 2009)
Melica subulata (PSM, WS, WTU; 1972)
Molineriella
Molineriella laevis (PSM; 1972)
Muhlenbergia
Muhlenbergia asperifolia (ID, OSC, WS, WTU; 2019)
Muhlenbergia filiformis (ID, PSM, WS, WTU; 2010)
Muhlenbergia mexicana (WS; 1915)
var. mexicana (WS; 1915)
Muhlenbergia minutissima (OSC, WS; 1898)
Muhlenbergia richardsonis (WS; 1904)
Panicum
Panicum capillare (OSC, PSM, WS, WTU; 2018)
ssp. capillare (OSC, WS, WTU; 2018)
{Panicum dichotomiflorum}
{Panicum miliaceum}
{ssp. miliaceum}
Pascopyrum
Pascopyrum smithii (ID, OSC, SRP, WS, WTU; 2000)
Paspalum
Paspalum distichum (ID, OSC, WS, WTU; 2017)
Phalaris
Phalaris arundinacea (PSM, WS, WTU; 1972)
Phleum
Phleum alpinum (WS; 1883)
Phleum pratense (PSM, WS, WTU; 1977)
ssp. pratense (WS; 1923)
Phragmites
Phragmites australis (ID, OSC, PSM, WS, WTU; 2018)
ssp. americanus (WTU; 2011)
ssp. australis (WTU; 2018)
Piptatheropsis
Piptatheropsis exigua (WS; 1903)
Poa
Poa annua (OSC, PSM, WS, WTU; 2009)
Poa bolanderi (WS; 1962)
Poa bulbosa (ID, OSC, PSM, WS, WTU; 2010)
ssp. vivipara (WS, WTU; 2009)
Poa compressa (PSM, WS, WTU; 1997)
Poa cusickii (WS; 1917)
{ssp. cusickii}
ssp. purpurascens (WS; 1917)
Poa howellii (ID, OSC, WS, WTU; 1993)
Poa leibergii (ID, OSC, PSM, WS, WTU; 2018)
Poa nemoralis (OSC, WS; 1924)
Poa nervosa (WS; 1896)
Poa palustris (OSC, WS, WTU; 1911)
Poa pratensis (PSM, WS, WTU; 1997)
ssp. pratensis (WTU; 1982)
Poa secunda (ID, OSC, PSM, WS, WTU, WWB; 2011)
ssp. juncifolia (ID, OSC, WS, WTU; 2009)
ssp. nevadensis (OSC; 1897)
ssp. secunda (OSC, WS, WTU; 2011)
Poa stenantha (WTU; 2009)
var. stenantha (WTU; 2009)
Poa trivialis (WS; 1907)
Poa wheeleri (WTU; 2010)
Podagrostis
Podagrostis humilis (WTU; 1892)
Polypogon
Polypogon australis (WS, WTU; 1918)
{Polypogon interruptus}
Polypogon maritimus (WTU; 2019)
Polypogon monspeliensis (ID, OSC, PSM, WS, WTU; 2019)
Polypogon viridis (WS, WTU; 1900)
Pseudoroegneria
Pseudoroegneria spicata (OSC, PSM, WS, WTU; 2009)
Puccinellia
Puccinellia distans (ID, OSC, WTU; 2010)
Puccinellia nuttalliana (OSC; 1906)
Rostraria
Rostraria cristata (OSC; 1911)
Schedonorus
{Schedonorus arundinaceus}
Schedonorus pratensis (PSM, WS, WTU; 1972)
Schizachne
Schizachne purpurascens (PSM; 1974)
Scolochloa
Scolochloa festucacea (PSM; 1974)
Scribneria
Scribneria bolanderi (ID, OSC, WS, WTU; 1981)
Secale
Secale cereale (HPSU, ID, OSC, WS, WTU; 2019)
Setaria
Setaria italica (WS; 1914)
Setaria pumila (PSM, WS, WTU; 1972)
ssp. pumila (WTU; 1937)
{Setaria verticillata}
Setaria viridis (PSM, WS, WTU; 1972)
{var. major}
{var. viridis}
Sorghum
Sorghum bicolor (WTU; 2005)
Sorghum halepense (WS; 1890)
Spartina
Spartina gracilis (WS, WTU; 2018)
Sphenopholis
Sphenopholis intermedia (WS; 1906)
Sphenopholis obtusata (ID, OSC, PSM, WS, WTU; 1974)
Sporobolus
Sporobolus cryptandrus (OSC, WS, WTU; 1919)
var. cryptandrus (WS; 1919)
Stipa
Stipa lemmonii × Stipa occidentalis var. occidentalis (WTU; 1923)
Taeniatherum
Taeniatherum caput-medusae (OSC, RM, WS, WTU; 2017)
Thinopyrum
{Thinopyrum elongatum}
Thinopyrum intermedium (OSC, PSM, WTU; 2010)
ssp. barbulatum (WTU; 2010)
ssp. intermedium (OSC; 2002)
Thinopyrum ponticum (WTU; 2007)
Torreyochloa
Torreyochloa pallida (ID, OSC, PSM, WS, WTU, WWB; 2001)
var. pallida (WTU; 1892)
var. pauciflora (ID, OSC, WS, WTU, WWB; 2001)
Tripidium
{Tripidium ravennae}
Trisetum
Trisetum canescens (ID, OSC, PSM, WS, WTU; 2001)
Trisetum cernuum (WS, WTU; 1919)
Triticum
Triticum aestivum (HPSU, PSM, WS; 2004)
Ventenata
Ventenata dubia (HPSU, OSC, SRP, WS, WTU; 2016)
Vulpia
Vulpia bromoides (PSM, WTU; 2009)
Vulpia microstachys (COLO, ID, IDS, NY, OSC, SRP, WCW, WS, WTU; 2013)
var. ciliata (WS; 1909)
var. confusa (IDS, NY, OSC, WS, WTU; 1962)
var. microstachys (OSC, WS; 1919)
var. pauciflora (ID, IDS, NY, OSC, WS, WTU; 1962)
Vulpia myuros (OSC, PSM, WS, WTU; 2018)
Vulpia octoflora (WS; 1908)
var. hirtella (WS; 1883)
var. octoflora (WS; 1908)

PONTEDERIACEAE:
Heteranthera
Heteranthera dubia (WTU; 2017)

POTAMOGETONACEAE:
Potamogeton
Potamogeton alpinus (WS, WTU; 2017)
Potamogeton berchtoldii (WS, WTU; 1908)
Potamogeton columbianus (NY; 1891)
Potamogeton crispus (OSC, PSM, WS, WTU; 2005)
Potamogeton foliosus (PSM, WTU; 2017)
Potamogeton gramineus (WS, WTU; 2017)
Potamogeton gramineus × Potamogeton illinoensis (WTU; 1882)
{Potamogeton illinoensis}
Potamogeton natans (PSM, WS, WTU; 1972)
{Potamogeton nodosus}
Potamogeton pusillus (OSC, WTU; 2017)
Potamogeton richardsonii (WTU; 2019)
Stuckenia
Stuckenia pectinata (PSM, WS, WTU; 2018)
Zannichellia
Zannichellia palustris (WS, WTU; 1904)

SCHEUCHZERIACEAE:
Scheuchzeria
Scheuchzeria palustris (WS; 1882)

TOFIELDIACEAE:
Triantha
Triantha glutinosa (PSM; 1982)
Triantha occidentalis (WS; 1882)
ssp. brevistyla (WS; 1882)

TYPHACEAE:
Sparganium
Sparganium acaule (WTU; 1923)
Sparganium angustifolium (PSM, WS, WWB; 1980)
Sparganium emersum (WTU; 1893)
Sparganium natans (OSC, PSM, WTU; 1975)
Typha
Typha angustifolia (SRP, WTU; 2018)
Typha domingensis (WTU; 2018)
Typha latifolia (PSM, WS, WTU; 2014)