Washington Flora Checklist

Family

Taxon (native taxa in boldface)

Common Names

Updated On

Orobanchaceae

Pedicularis bracteosa Benth.[HC, HC2]

bracted lousewort

last updated 3/25/2025

Onagraceae

Epilobium leptophyllum Raf.[HC2, JPM2]

bog willow-herb

last updated 3/23/2025

Potamogetonaceae

Potamogeton diversifolius Raf.[FNA22, HC, HC2]

water-thread pondweed

last updated 3/15/2025

Cyperaceae

Carex rostrata Stokes[HC, HC2, FNA23, SPNW]

northern beaked sedge

last updated 3/7/2025

Asteraceae

Symphyotrichum ×columbianum (Piper) G.L. Nesom[FNA20, HC2]

hybrid aster

last updated 3/1/2025

Melanthiaceae

Veratrum viride Aiton var. eschscholtzianum (Schult. & Schult.f.) Breitung[FNA26, HC2]

last updated 2/26/2025

Convolvulaceae

Cuscuta indecora Choisy[HC, HC2]

inelegant dodder, large-seeded dodder

last updated 2/20/2025

Fabaceae

Acmispon decumbens (Benth.) Govaerts[WTU]

low deervetch

last updated 2/8/2025

Fabaceae

Acmispon decumbens (Benth.) Govaerts var. decumbens

low deervetch

last updated 2/8/2025

Apiaceae

Lomatium refugianum Darrach & G. Brill

refuge biscuitroot

last updated 1/25/2025

Ophioglossaceae

Botrychium lanceolatum (S.G. Gmel.) Angström[FNA2, HC, HC2]

lance-leaved grapefern, green triangle moonwort

last updated 1/13/2025

Ophioglossaceae

Botrychium rubellum Farrar & Stensvold

red triangle moonwort

last updated 1/13/2025

Papaveraceae

Papaver cambrica L.[WTU]

Welsh poppy

last updated 1/8/2025

Papaveraceae

Roemeria argemone (L.) C.Morales, R.Mend. & Romero García[WTU]

long prickly-head poppy

last updated 1/8/2025

Phrymaceae

Erythranthe veronicifolia (Greene) Nesom

veronica-leaved monkey-flower

last updated 1/2/2025

Asteraceae

Cirsium palustre (L.) Scop.[FNA19, HC2]

marsh thistle

last updated 12/30/2024

Salicaceae

Salix exigua Nutt. var. columbiana Dorn[HC2]

Columbia River willow

last updated 12/22/2024

Orobanchaceae

Agalinis purpurea (L.) Pennell var. parviflora (Benth.) B. Boivin[FNA, Flora of the Southeast]

small-flower false foxglove

last updated 12/21/2024

Orobanchaceae

Agalinis purpurea (L.) Pennell

purple false foxglove

last updated 12/21/2024

Amaranthaceae

Amaranthus palmeri S. Watson[FNA4]

last updated 12/21/2024

Asteraceae

Townsendia florifera (Hook.) A. Gray

showy Townsend daisy, showy townsendia

last updated 12/18/2024

Primulaceae

Primula poetica (L.F. Hend.) A.R. Mast & Reveal[WTU]

narcissus shooting star, poet's shooting star

last updated 12/18/2024

Plumbaginaceae

Limonium ramosissimum (Poir.) Maire[FNA5]

branched marsh-rosemary, branched sea-lavender

last updated 11/29/2024

Onagraceae

Epilobium smithii H. Lév.

talus willow-herb

last updated 11/25/2024

Asteraceae

Sonchus asper (L.) Hill ssp. asper[HC2]

prickly sow-thistle

last updated 11/22/2024

Fabaceae

Spartium junceum L.[HC2, JPM2]

rush broom

last updated 10/30/2024

Plantaginaceae

Tonella tenella (Benth. ex A. DC.) A. Heller[HC, HC2]

lesser baby-innocence, small-flowered tonella

last updated 10/27/2024

Ericaceae

Pityopus californicus (Eastw.) H.F. Copel.[FNA8, HC2]

California pinefoot

last updated 9/28/2024

Juncaceae

Juncus breweri Engelm.[HC2, IFBC]

Brewer's rush, salt rush

last updated 9/25/2024

Cleomaceae

Cleomella lutea (Hook.) Roalson & J.C.Hall[WTU]

yellow beeplant, yellow spiderflower

last updated 9/19/2024

Cleomaceae

Cleomella serrulata (Pursh) Roalson & J.C.Hall[WTU]

Rocky Mountain beeplant, stinkweed

last updated 9/19/2024

Caprifoliaceae

Lonicera caerulea L.[HC, VPBC1]

last updated 9/17/2024

Onagraceae

Epilobium obscurum Schreb.[HC2]

dwarf willow-herb

last updated 9/3/2024

Fabaceae

Astragalus microcystis A. Gray[HC, HC2]

lesser-bladder milk-vetch

last updated 9/1/2024

Brassicaceae

Draba oligosperma Hook.[FNA7, HC, HC2]

few-seeded draba, few-seeded whitlow-grass

last updated 8/3/2024

Amaranthaceae

Atriplex littoralis L.[FNA4, HC2]

grassleaf orache, narrow-leaved orache

last updated 7/23/2024

Poaceae

Achnatherum occidentale (Thurb. ex S. Watson) Barkworth ssp. pubescens (Vasey) Barkworth[FNA24, HC2]

western needlegrass

last updated 7/12/2024

Poaceae

Achnatherum occidentale (Thurb. ex S. Watson) Barkworth ssp. californicum (Merr. & Burtt Davy) Barkworth[FNA24, HC2]

California needlegrass

last updated 7/12/2024

Amaryllidaceae

Allium validum S. Watson[FNA26, HC, HC2]

Pacific onion, swamp onion

last updated 6/26/2024

Boraginaceae

Mertensia ciliata (E. James ex Torr.) G. Don[HC, HC2]

mountain bluebells, streamside bluebells, tall fringed bluebells

last updated 6/9/2024

Amaryllidaceae

Allium textile A. Nelson & J.F. Macbr.[FNA26, HC, HC2]

textile onion, white wild onion

last updated 5/28/2024

Ranunculaceae

Ranunculus basalticus Giblin

basalt buttercup

last updated 5/28/2024

Amaryllidaceae

Allium douglasii Hook.[FNA26, HC, HC2]

Douglas' onion

last updated 5/24/2024

Hydrophyllaceae

Nemophila maculata Benth. ex Lindl.

baby blue eyes, five-spot

last updated 5/20/2024

Cyperaceae

Carex vernacula L.H. Bailey[FNA23, HC2, SPNW]

foetid sedge

last updated 5/18/2024

Cyperaceae

Carex integra Mack.[FNA23, HC, HC2]

smooth-beaked sedge

last updated 5/18/2024

Asteraceae

Erigeron chrysopsidis A. Gray var. chrysopsidis[FNA20, HC, HC2]

dwarf yellow fleabane, golden fleabane

last updated 5/13/2024

Ericaceae

Arctostaphylos patula Greene var. patula

green-leaf manzanita

last updated 5/7/2024

Ericaceae

Arctostaphylos patula Greene[FNA8, HC, HC2]

green-leaf manzanita

last updated 5/7/2024

Caryophyllaceae

Pseudostellaria jamesiana (Torr.) W.A. Weber & R.L. Hartm.[WTU]

sticky chickweed, sticky starwort

last updated 5/7/2024

Fabaceae

Trifolium thompsonii C.V. Morton[HC, HC2]

Thompson's clover

last updated 5/4/2024

Rosaceae

Geum rivale L.[HC, HC2]

purple avens, water avens

last updated 5/4/2024

Rosaceae

Drymocallis campanulata (C.L. Hitchc.) Ertter[HC2]

John Day cinquefoil, John Day wood beauty

last updated 4/29/2024

Melanthiaceae

Trillium stenosepalum (R.R.Gates) A.J.Wright

western white trillium, western wake-robin

last updated 4/24/2024

Melanthiaceae

Trillium ovatum Pursh[FNA26, HC, HC2]

western trillium, white trillium

last updated 4/24/2024

Ranunculaceae

Anemone patens L. var. multifida Pritz.[FNA3, HC2]

cliff anemone

last updated 4/23/2024

Ranunculaceae

Anemone patens L.[FNA3, HC2]

pasqueflower, prairie-crocus

last updated 4/23/2024

Saxifragaceae

Micranthes fragosa (Suksd. ex Small) Small[FNA8, HC2]

Clayton's saxifrage

last updated 4/22/2024

Saxifragaceae

Micranthes idahoensis (Piper) Brouillet & Gornall[FNA8, HC2]

Idaho saxifrage

last updated 4/22/2024

Asteraceae

Conyza sumatrensis (Retz.) E. Walker var. sumatrensis[HC2]

last updated 4/22/2024

Melanthiaceae

Trillium crassifolium Piper

thick-leaved trillium, thick-leaved wake-robin

last updated 4/22/2024

Pteridaceae

Myriopteris intertexta (Maxon) Grusz & Windham[Grusz & Windham 2013]

coastal lip fern

last updated 4/19/2024

Adoxaceae

Viburnum opulus L.[HC, HC2]

cranberry-bush, high-bush cranberry

last updated 4/16/2024

Asteraceae

Xanthium orientale L.[WTU]

cocklebur, common cocklebur

last updated 4/13/2024

Cactaceae

Opuntia phaeacantha Engelm.[FNA4]

last updated 4/7/2024

Boraginaceae

Mertensia foliosa A. Nelson[HC2]

leafy bluebells

last updated 4/7/2024

Apiaceae

Glehnia leiocarpa Mathias[HC, HC2]

American glehnia

last updated 4/1/2024

Asteraceae

Cirsium flodmanii (Rydb.) Arthur[FNA19, HC, HC2]

Flodman's thistle

last updated 3/29/2024

Boraginaceae

Lappula montana Greene[HC2]

montane stickseed

last updated 3/29/2024

Betulaceae

Betula populifolia Marshall[FNA3, HC2]

gray birch

last updated 3/28/2024

Betulaceae

Betula pubescens Ehrh.[FNA3, HC2]

downy birch

last updated 3/28/2024

Asteraceae

Taraxacum scopulorum (A. Gray) Rydb.[FNA19, HC2]

alpine dandelion

last updated 3/28/2024

Ranunculaceae

Helleborus foetidus L.[HC2]

stinking hellebore

last updated 3/25/2024

Onagraceae

Epilobium ×treleasianum H. Lév.[HC2]

last updated 3/21/2024

Onagraceae

Epilobium anagallidifolium Lam.[HC2, JPM2]

alpine willow-herb, pimpernel willow-herb

last updated 3/21/2024

Asteraceae

Nabalus hastatus (Less.) A.Heller[WTU]

western white lettuce, western rattlesnake-root

last updated 3/18/2024

Onagraceae

Oenothera villosa Thunb. ssp. strigosa (Rydb.) W. Dietr. & P.H. Raven[JPM2]

hairy common evening primrose

last updated 3/18/2024

Onagraceae

Oenothera villosa Thunb.

common evening primrose

last updated 3/18/2024

Brassicaceae

Physaria occidentalis (S. Watson) O’Kane & Al-Shehbaz[FNA7, HC2]

western bladderpod

last updated 3/14/2024

Brassicaceae

Physaria occidentalis (S. Watson) O’Kane & Al-Shehbaz ssp. occidentalis[FNA7, HC2]

western bladderpod

last updated 3/14/2024

Asteraceae

Balsamorhiza ×bonseri H. St. John[HC2]

hybrid balsamroot

last updated 3/13/2024

Asteraceae

Balsamorhiza ×terebinthacea (Hook.) Nutt.[HC2]

wormwood balsamroot

last updated 3/12/2024

Asteraceae

Conyza sumatrensis (Retz.) E. Walker[HC2]

asthmaweed

last updated 3/12/2024

Asteraceae

Calendula officinalis L.[FNA19, HC2]

pot marigold

last updated 3/11/2024

Asteraceae

Balsamorhiza hookeri Nutt. × Balsamorhiza sagittata (Pursh) Nutt.

hybrid balsamroot

last updated 3/11/2024

Asteraceae

Balsamorhiza careyana A. Gray × Balsamorhiza hookeri Nutt.

hybrid balsamroot

last updated 3/11/2024

Onagraceae

Clarkia purpurea (W. Curtis) A. Nelson & J.F. Macbr. ssp. viminea (Douglas) F.H. Lewis & M.E. Lewis[WTU]

twiggy clarkia

last updated 3/7/2024

Onagraceae

Clarkia purpurea (W. Curtis) A. Nelson & J.F. Macbr. ssp. quadrivulnera (Douglas) F.H. Lewis & M.E. Lewis[WTU]

four-spot

last updated 3/7/2024

Onagraceae

Clarkia purpurea (W. Curtis) A. Nelson & J.F. Macbr.[HC, HC2]

purple godetia

last updated 3/7/2024

Caryophyllaceae

Stellaria sitchana Steud.[WTU]

Sitka starwort

last updated 3/5/2024

Primulaceae

Primula [FNA8, HC, HC2]

primrose

last updated 3/4/2024

Asteraceae

Solidago altissima L. ssp. gilvocanescens (Rydb.) Semple[FNA20, HC2]

Great Plains goldenrod, tall goldenrod

last updated 3/4/2024

Asteraceae

Solidago altissima L.[FNA20, HC2]

Great Plains goldenrod, late goldenrod

last updated 3/4/2024

Urticaceae

Urtica gracilis Aiton ssp. gracilis

stinging nettle

last updated 3/3/2024

Urticaceae

Urtica dioica L.[FNA3, HC, HC2]

stinging nettle

last updated 3/3/2024

Urticaceae

Urtica gracilis Aiton[WTU]

stinging nettle

last updated 3/3/2024

Urticaceae

Urtica gracilis Aiton ssp. holosericea (Nutt.) W.A. Weber[WTU]

stinging nettle

last updated 3/3/2024

Campanulaceae

Jasione montana L.[HC2]

mountain sheep's bit

last updated 3/2/2024

Poaceae

Alopecurus aequalis Sobol. var. aequalis

little foxtail, short-awn foxtail

last updated 3/1/2024

Poaceae

Lolium persicum Boiss. & Hohen.

Persian ryegrass

last updated 3/1/2024