Vascular Plants

Includes all flowering plants, conifers, ferns and fern-allies.


Browse by scientific name:

A, B, C, D, E, F, G, H, I, J, K, L, M, N, O, P, Q, R, S, T, U, V, W, X, Y, Z
Scientific names beginning with W:
6 genera
10 species, 3 subspecies and varieties
Show only taxa with photos
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Whipplea modestamodesty, common whipplea
Distribution: Occurring on the Olympic Peninsula in Washington; Washington to California.
Habitat: Dry, rocky, open to lightly forested areas.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
Wolffia borealisnorthern watermeal
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Alberta, Montana, and Utah, also from the central U.S. east to the Atlantic Coast.
Habitat: Ponds and standing water at low elevations
Origin: Native
Growth Duration: Perennial
Wolffia brasiliensisBrazilian watermeal
Distribution: Occurring chiefly west of the Cascades crest in Washington; southwestern British Columbia to California, also from the southern Great Plains east to the Atlantic Coast in the U.S.
Habitat: Ponds and standing water at low elevations.
Origin: Native
Growth Duration: Perennial
Wolffia columbianaColumbian watermeal
Distribution: Occurring chiefly west of the Cascades crest in Washington; Washington to California, east to Alberta, Idaho, Montana, and Colorado, and east from the Great Plains to the Atlantic Coast.
Habitat: Ponds and standing water at low elevations.
Origin: Native
Growth Duration: Perennial
Wolffiella gladiatasword bogmat, mud-midget
Distribution: Occurring west of the Cascades crest in Washington; central and eastern U.S., where native.
Habitat: Ponds, lakes, and bogs at low elevation.
Origin: Introduced from eastern United States
Growth Duration: Perennial
Woodsia oreganaOregon cliff-fern, Oregon woodsia
Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east to the northern Great Plains and Great Lakes region.
Habitat: Rock crevices, ledges and talus slopes in the mountains, and in less arid parts of the lowlands.
Origin: Native
Growth Duration: Perennial
ssp. oregana – Oregon cliff-fern, western cliff-fern
Woodsia scopulinacliff-fern, woodsia
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, Great Plains, and scattered areas in eastern North America.
Habitat: Rock crevices, ledges and talus slopes in the mountains, and in less arid parts of the lowlands.
Origin: Native
Growth Duration: Perennial
ssp. laurentiana – Laurentian cliff fern
ssp. scopulina – Rocky Mountain cliff fern, mountain fern
Woodwardia fimbriatagiant chain fern
Distribution: Occurring west of the Cascades crest in lowland western Washignton; Osouthern Vancouver Island to California, also in Nevada and Arizona.
Habitat: Mixed conifer and mixed conifer-hardwood forests, always where moist such as stream banks, springs, and seepy rocky outcrops.
Origin: Native
Growth Duration: Perennial
Wyethia amplexicaulisnorthern mule's ears, smooth dwarf sunflower
Distribution: Occurring east of the Cascades crest in Washington; Washington to Nevada, east to the Rocky Mountains.
Habitat: Seasonally moist areas in sagebrush-steppe, to open areas at moderate elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial
Wyethia angustifolianarrowleaf mule's ears, narrowleaf wyethia
Distribution: Occurring west of the Cascades crest in southwestern Washington, and east in the Columbia River Gorge; Washington to California.
Habitat: Meadows and moist, open hillsides at low elevations.
Origin: Native
Flowers: May-July
Growth Duration: Perennial