Washington Flora Checklist

Family

Taxon (native taxa in boldface)

Common Names

Updated On

Anacardiaceae

Toxicodendron radicans (L.) Kuntze var. rydbergii (Small ex Rydb.) Erskine[Draft FNA, HC2]

poison-ivy, western poison-ivy

last updated 11/21/2021

Anacardiaceae

Toxicodendron radicans (L.) Kuntze[HC2]

western poison ivy

last updated 11/21/2021

Anacardiaceae

Toxicodendron diversilobum (Torr. & A. Gray) Greene[HC2, IFBC]

Pacific poison-oak

last updated 11/21/2021

Anacardiaceae

Rhus glabra L.[HC, HC2]

smooth sumac

last updated 11/21/2021

Anacardiaceae

Rhus typhina L.[Flora of Virginia, HC2]

staghorn sumac

last updated 11/21/2021

Adoxaceae

Viburnum opulus L. var. opulus[HC2, Stace 1997]

European cranberry-bush, European high-bush cranberry

last updated 11/21/2021

Adoxaceae

Viburnum opulus L. var. americanum Aiton[HC, HC2]

American cranberry-bush, American high-bush cranberry

last updated 11/21/2021

Adoxaceae

Viburnum edule (Michx.) Raf.[HC, HC2, JPM2]

squashberry

last updated 11/21/2021

Apiaceae

Conium maculatum L.[HC, HC2, VPBC1]

poison hemlock

last updated 11/18/2021

Orobanchaceae

Castilleja parviflora Bong. var. oreopola (Greenm.) Ownbey[HC, HC2]

magenta paintbrush

last updated 11/14/2021

Orobanchaceae

Aphyllon franciscanum (Achey)A.C.Schneid.

clustered broomrape

last updated 11/7/2021

Orobanchaceae

Aphyllon fasciculatum (Nutt.) Torr. & A. Gray[HC2]

clustered broomrape

last updated 11/7/2021

Asteraceae

Grindelia stricta DC.[JPM2, OFP]

Oregon gumweed

last updated 10/31/2021

Asteraceae

Grindelia squarrosa (Pursh) Dunal var. serrulata (Rydb.) Steyerm.[OFP]

curlycup gumweed, serrate resinweed

last updated 10/30/2021

Asteraceae

Grindelia squarrosa (Pursh) Dunal[FNA20, HC, HC2]

curlycup gumweed, serrate resinweed

last updated 10/30/2021

Asteraceae

Grindelia hirsutula Hook. & Arn.[FNA20, HC2]

gumweed

last updated 10/30/2021

Asteraceae

Grindelia hirsutula Hook. & Arn.[FNA, HC2, OFP, JPM2]

gumweed

last updated 10/30/2021

Asteraceae

Grindelia stricta DC. var. stricta[JPM2, OFP]

last updated 10/30/2021

Asteraceae

Grindelia nana Nutt.[JPM2, OFP]

Idaho gumweed, low gumweed

last updated 10/30/2021

Asteraceae

Grindelia nana Nutt. var. discoidea (Nutt.) A. Gray[OFP]

Columbia gumweed, rayless gumweed

last updated 10/30/2021

Ranunculaceae

Aconitum columbianum Nutt. ssp. columbianum[FNA3, HC2]

Columbian monkshood

last updated 10/30/2021

Ranunculaceae

Aconitum columbianum Nutt.[FNA3, HC, HC2]

Columbian monkshood

last updated 10/30/2021

Polemoniaceae

Polemonium elegans Greene[HC, HC2]

elegant Jacob's-ladder, elegant polemonium

last updated 10/28/2021

Poaceae

Sporobolus airoides (Torr.) Torr.[FNA25, HC, HC2]

alkali sacaton

last updated 10/21/2021

Plantaginaceae

Penstemon ovatus Douglas[HC, HC2]

egg-leaf beardtongue, broad-leaved penstemon

last updated 10/17/2021

Convolvulaceae

Cuscuta pentagona Engelm.[Draft FNA, HC, HC2]

five-angled dodder

last updated 10/14/2021

Brassicaceae

Arabis furcata S. Watson[FNA7, HC, HC2]

Cascade rockcress, Columbia Gorge rockcress, fork-haired rockcress

last updated 10/14/2021

Ceratophyllaceae

Ceratophyllum demersum L.[FNA3, HC, HC2]

coon's-tail

last updated 9/27/2021

Salicaceae

Salix farriae C.R. Ball[FNA7, HC, HC2]

Farr's willow

last updated 9/25/2021

Polygonaceae

Rumex crassus Rech. f.[FNA5, HC2]

fleshy willow dock

last updated 9/14/2021

Caprifoliaceae

Symphoricarpos albus (L.) S.F. Blake var. albus[HC, HC2]

common snowberry

last updated 9/14/2021

Caprifoliaceae

Symphoricarpos albus (L.) S.F. Blake var. albus[HC, HC2]

common snowberry

last updated 9/14/2021

Caryophyllaceae

Cerastium beeringianum Cham. & Schltdl.[FNA5, HC, HC2]

alpine chickweed

last updated 9/7/2021

Tofieldiaceae

Triantha occidentalis (S. Watson) R.R. Gates[FNA26, HC2]

western asphodel, western tofieldia

last updated 8/18/2021

Plantaginaceae

Penstemon fruticosus (Pursh) Greene[HC, HC2]

bush penstemon, shrubby penstemon

last updated 8/3/2021

Polemoniaceae

Aliciella lottiae (A.G. Day) J.M. Porter[HC2]

Lott's gily-flower

last updated 7/19/2021

Brassicaceae

Boechera retrofracta (Graham) Á. Löve & D. Löve[FNA7, HC2]

reflexed rockcress

last updated 7/18/2021

Ericaceae

Rhododendron neoglandulosum Harmaja

western Labrador tea

last updated 7/17/2021

Poaceae

Nassella viridula (Trin.) Barkworth[HC2]

green nassella

last updated 7/9/2021

Boraginaceae

Pentaglottis sempervirens (L.) Tausch ex L.H. Bailey[HC2, IFBC]

green alkanet

last updated 7/4/2021

Asparagaceae

Brodiaea rosea (Greene) Baker var. rosea[HC2]

Indian Valley brodiaea

last updated 6/30/2021

Asparagaceae

Brodiaea rosea (Greene) Baker[HC2]

Indian Valley brodiaea

last updated 6/30/2021

Plantaginaceae

Penstemon humilis Nutt. ex A. Gray[HC, HC2]

lowly penstemon

last updated 6/29/2021

Plantaginaceae

Penstemon humilis Nutt. ex A. Gray[FNA17, JPM2]

lowly penstemon

last updated 6/29/2021

Valerianaceae

Valeriana columbiana Piper[HC, HC2]

Wenatchee valerian

last updated 6/17/2021

Saxifragaceae

Brewerimitella

bishop's-cap

last updated 6/10/2021

Adoxaceae

Viburnum lantana L.[HC2]

wayfaring-tree

last updated 6/8/2021

Fabaceae

Astragalus canadensis L. var. brevidens (Gand.) Barneby[HC, HC2]

Canada milk-vetch

last updated 6/8/2021

Fabaceae

Astragalus canadensis L. var. canadensis[HC2, IFBC]

Canada milk-vetch

last updated 6/8/2021

Saxifragaceae

Micranthes nelsoniana (D. Don) Small var. cascadensis (Calder & Savile) Gornall & H. Ohba[FNA8, HC2]

Cascades dotted saxifrage, Nelson's saxifrage

last updated 6/7/2021

Saxifragaceae

Micranthes nelsoniana (D. Don) Small[FNA8, HC2]

dotted saxifrage

last updated 6/7/2021

Cyperaceae

Carex hoodii Boott[FNA23, HC, HC2, SPNW]

Hood's sedge

last updated 6/7/2021

Fabaceae

Lathyrus angulatus L.[HC2]

angled peavine

last updated 6/7/2021

Orobanchaceae

Rhinanthus minor L.[HC2, IFBC]

little yellow rattle

last updated 6/4/2021

Orobanchaceae

Rhinanthus minor L. ssp. minor[HC2]

last updated 6/4/2021

Liliaceae

Streptopus lanceolatus (Aiton) Reveal[FNA26, HC2]

rosy twisted-stalk

last updated 6/4/2021

Campanulaceae

Downingia bacigalupii Weiler[HC2]

Bach's downingia

last updated 6/3/2021

Caprifoliaceae

Lonicera conjugialis Kellogg[HC, HC2]

purple-flower honeysuckle

last updated 6/3/2021

Apiaceae

Tauschia stricklandii (J.M. Coult. & Rose) Mathias & Constance[HC, HC2]

Strickland's tauschia, Strickland's umbrella-wort

last updated 5/26/2021

Boraginaceae

Symphytum officinale L.[HC, HC2]

common comfrey

last updated 5/16/2021

Asteraceae

Antennaria monocephala DC.[FNA19, HC2]

pygmy pussytoes, single-headed pussytoes

last updated 5/14/2021

Poaceae

Muhlenbergia racemosa (Michx.) Britton, Sterns & Poggenb.[FNA24, HC, HC2]

green muhly

last updated 5/11/2021

Plantaginaceae

Penstemon cinereus Piper[HC2]

gray beardtongue

last updated 5/11/2021

Plantaginaceae

Penstemon cinereus Piper ssp. foliatus D.D. Keck[HC2]

leafy gray beardtongue

last updated 5/10/2021

Plantaginaceae

Penstemon cinereus Piper ssp. cinereus[HC2]

gray beardtongue

last updated 5/10/2021

Plantaginaceae

Nuttallanthus canadensis (L.) D.A. Sutton[HC2, JPM2]

Canada toadflax, old field toadflax

last updated 5/9/2021

Iridaceae

Sisyrinchium septentrionale E.P. Bicknell[FNA26, HC2]

northern blue-eyed grass

last updated 5/7/2021

Iridaceae

Sisyrinchium sarmentosum Suksd. ex Greene[FNA26, HC2]

Suksdorf's blue-eyed grass

last updated 5/7/2021

Iridaceae

Sisyrinchium californicum (Ker Gawl.) W.T.Aiton[FNA26, HC, HC2]

golden blue-eyed grass

last updated 5/6/2021

Iridaceae

Olsynium douglasii (A. Dietr.) E.P. Bicknell var. douglasii[FNA26, HC2]

purple-eyed grass-widow

last updated 5/6/2021

Iridaceae

Olsynium douglasii (A. Dietr.) E.P. Bicknell[FNA26, HC2]

grass-widow, purple-eyed grass-widow

last updated 5/6/2021

Iridaceae

Iris sibirica L.[FNA26, HC2]

Siberian iris

last updated 5/6/2021

Polemoniaceae

Aliciella leptomeria (A. Gray) J.M. Porter[HC2]

Great Basin gilia, sand gily-flower

last updated 5/6/2021

Iridaceae

Iris germanica L.[FNA26, HC2]

bearded iris, German iris

last updated 5/6/2021

Iridaceae

Iris foetidissima L.[HC2]

stinking iris

last updated 5/6/2021

Rosaceae

Malus fusca (Raf.) C.K. Schneid.[HC2, IFBC]

Oregon crabapple, western crabapple

last updated 5/6/2021

Celastraceae

Euonymus occidentalis Nutt. ex Torr. var. occidentalis[HC2, JPM]

western wahoo

last updated 5/5/2021

Celastraceae

Euonymus occidentalis Nutt. ex Torr.[HC, HC2]

burning bush, western wahoo

last updated 5/5/2021

Namaceae

Nama densa Lemmon var. parviflora (Greenm.) C.L. Hitchc.[HC2]

matted nama

last updated 5/4/2021

Namaceae

Nama densa Lemmon[HC2]

leafy nama, matted nama

last updated 5/4/2021

Iridaceae

Crocus tommasinianus Herb.[HC2]

early crocus

last updated 5/4/2021

Iridaceae

Crocus ×stellaris Haw.[HC2]

yellow crocus

last updated 5/4/2021

Iridaceae

Crocus vernus (L.) Hill[HC2]

last updated 5/4/2021

Hydrocharitaceae

Vallisneria americana Michx.[FNA22, HC, HC2]

wild celery, American eelgrass, tapegrass

last updated 5/4/2021

Hydrocharitaceae

Najas guadalupensis (Spreng.) Magnus ssp. guadalupensis[FNA22, HC2]

Guadalupe naias, common water-nymph, Guadalupe water-nymph

last updated 5/4/2021

Hydrocharitaceae

Najas guadalupensis (Spreng.) Magnus[FNA22, HC, HC2]

Guadalupe water-nymph

last updated 5/4/2021

Hydrocharitaceae

Najas flexilis (Willd.) Rostk. & W.L.E. Schmidt[FNA22, HC, HC2]

nodding water-nymph, slender water-nymph, wavy water-nymph

last updated 5/4/2021

Hydrocharitaceae

Najas canadensis Michx.[HC2]

Canadian water-nymph

last updated 5/4/2021

Equisetaceae

Equisetum telmateia Ehrh.[FNA2, HC, HC2]

giant horsetail

last updated 5/3/2021

Cyperaceae

Carex pachystachya Cham. ex Steud.[FNA23, HC, HC2, SPNW]

starry sedge, thick-headed sedge

last updated 5/3/2021

Cyperaceae

Eleocharis palustris (L.) Roem. & Schult.[FNA23, HC, HC2]

common spikerush

last updated 5/3/2021

Pinaceae

Larix occidentalis Nutt.[FNA2, HC, HC2]

western larch

last updated 4/27/2021

Saxifragaceae

Tellima grandiflora (Pursh) Douglas ex Lindl.[FNA8, HC, HC2]

fragrant fringecup

last updated 4/21/2021

Alismataceae

Sagittaria graminea Michx. ssp. graminea[FNA22, HC2]

last updated 4/21/2021

Boraginaceae

Oreocarya

oreocarya

last updated 4/20/2021

Asteraceae

Oreostemma [FNA20, HC2]

mountain-crown

last updated 4/20/2021

Orobanchaceae

Orobanche [HC, HC2]

broomrape

last updated 4/20/2021

Ranunculaceae

Clematis occidentalis (Hornem.) DC. var. grosseserrata (Rydb.) J.S. Pringle[FNA3, HC2]

Columbia clematis

last updated 4/17/2021

Ranunculaceae

Clematis occidentalis (Hornem.) DC. var. dissecta (C.L. Hitchc.) J.S. Pringle[FNA3, HC2]

Columbia clematis

last updated 4/17/2021

Hydrocharitaceae

Limnobium laevigatum (Humb. & Bonpl. ex Willd.) Heine[HC2]

smooth frogbit

last updated 4/16/2021