Liliaceae
Lily Family
11 genera
27 species
7 subspecies and varieties
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Calochortus apiculatusBaker's mariposa, three-spot mariposa-lily
Distribution: Occurring in the northeast corner of Washington; southern British Columbia south to Washington, east to Alberta, Idaho, and Montana.
Habitat: Dry, rocky slopes in open coniferous woods.
Origin: Native
Flowers: June-July
Calochortus elegans
Distribution: East of the Casades in Washington; Washington south to Oregon and northern California, east to Idaho and Montana.
Habitat: Grassy hillsides and open coniferous forests, mid- to high elvations in the mountains.
Flowers: May-June
var. elegans – elegant cat's ear, northwest mariposa lily
Calochortus eurycarpusbig-pod mariposa lily, wide-fruited mariposa
Distribution: Occurring in southeastern Washington; eastern Oregon, east to Montana and Wyoming.
Habitat: Grasslands and open coniferous forests at moderate elevations.
Origin: Native
Flowers: June-August
Calochortus longebarbatuslong-bearded sego lily
Distribution: Yakima County, Washington, south through eastern Oregon to northern California.
Habitat: Open meadows, low to moderate elevations.
Origin: Native
Flowers: June - July
Calochortus lyalliiLyall's mariposa-lily
Distribution: East of the Cascades in Washington; British Columbia south along the east slope of the Cascades in Washington.
Habitat: Dry, open coniferous forests at moderate to mid-elevations in the mountains.
Origin: Native
Flowers: May-July
Calochortus macrocarpus
Distribution: East of the Cascades in Washington; British Columbia south to California, east to Montana and Nevada.
Habitat: Dry open forests and hills, low to moderate elevations.
Flowers: May-July
var. macrocarpus – sagebrush mariposa
var. maculosus – sagebrush mariposa
Calochortus nitidusbroad-fruited mariposa lily
Distribution: Occurring in Whitman County in Washington; Washington east to adjacent areas of Idaho and in northeast Oregon.
Habitat: Meadows at low elevation.
Origin: Native
Flowers: June-July
Calochortus subalpinusmountain mariposa, subalpine mariposa-lily
Distribution: Chiefly in the Cascades of Washington near Mt. Adams and Mt St. Helens, Washington; south to the Three Sisters in Oregon.
Habitat: Open forests in loose volcanic soils, mid- to high elevations in the mountains.
Origin: Native
Flowers: June-August
Clintonia uniflorabride's-bonnet, queen's cup
Distribution: Occurring in forested areas throughout Washington; Alaska south to California, east to Montana.
Habitat: Moist coniferous forests, from the foothills to fairly high elevations in the mountains
Origin: Native
Flowers: May-July
Erythronium grandiflorum
Distribution: Widely distributed throughout Washington; British Columbia south to Oregon, east to Colorado.
Habitat: Sagebrush slopes to near timberline in the mountains, often blooming near snow fields.
Origin: Native
Flowers: March-August
ssp. candidum – pale fawn lily, yellow fawn lily
ssp. grandiflorum – yellow fawn lily
Erythronium montanumwhite avalanche lily
Distribution: Occurring chiefly west of the Cascades crest in Washington; Vancouver Island, British Columbia south to Oregon.
Habitat: Forest openings and mountain meadows, subalpine to alpine.
Origin: Native
Flowers: June-August
Erythronium oregonumgiant fawn lily, wild easter lily, deer's tongue
Distribution: Occurring west of the Cascades crest in Washington; British Columbia south to California.
Habitat: Prairies, rocky balds, moist woods; at low elevations.
Flowers: March-May
ssp. oregonum – giant fawn lily, wild easter lily, deer's tongue
Erythronium quinaultenseOlympic fawn lily, quinault trout lily
Distribution: Southwestern portion of Olympic peninsula, Washington.
Habitat: Openings and rocky ledges in coniferous forests.
Origin: Native
Flowers: May - June
Erythronium revolutumcoast fawn lily, mahogany fawn lily, pink fawn lily
Distribution: West of the Cascades in Washington; southern British Columbia south to northwest California.
Habitat: Along river banks and the edge of woods, in open or in moderate shade.
Origin: Native
Flowers: April-May
Fritillaria affinischecker lily, chocolate lily
Distribution: On both sides of the Cascades in Washington; British Columbia south to California, east to Idaho.
Habitat: Prairies and grassy bluffs to woodlands and coniferous forests, sea level to fairly high elevations in the mountains.
Origin: Native
Flowers: April-June
Fritillaria camschatcensisblack lily, Indian rice
Distribution: Chiefly northern Puget Sound lowlands in Washington; Kodiak Island and coastal Alaska south to Washington.
Habitat: Moist areas from near tide flats to mountain meadows.
Origin: Native
Flowers: May-July
Fritillaria pudicayellow bells, yellow missionbells
Distribution: Occurring east of the Cascades crest in Washington; British Columbia south to California, east to Montana and Utah.
Habitat: Shrub-steppe to mixed coniferous forests, low to moderate elevations.
Origin: Native
Flowers: March-June
Gagea villosahairy star-of-bethleham
Origin: Introduced
Lilium columbianumColumbian lily
Distribution: Widely distributed throughout Washington; British Columbia south to California, east to Idaho.
Habitat: Prairies, woods and coniferous forests, sea level to mid-elevations in drier areas.
Origin: Native
Flowers: May-August
Lloydia serotina
Distribution: In the Olympic and Cascade mountains of Washington; Alaska south to Oregon, east to Montana and Alberta, and south in the Rockies to New Mexico.
Habitat: Gravelly ridges, cliffs and rock crevices at high elevations.
Flowers: June-September
var. serotina – alpine lily
Prosartes hookeriHooker's fairy bells, fairy-bells
Distribution: Both sides of the Cascades in Washington; British Columbia south to Oregon, east to Montana.
Habitat: Moist, shady, wooded areas, sea level to mid-elevations in the mountains.
Origin: Native
Flowers: April-July
Prosartes smithiiSmith's fairy bells
Distribution: Occurring west of the Cascades crest in Washington; British Columbia to California.
Habitat: Open to dense moist woods at lower elevations.
Origin: Native
Flowers: April-June
Prosartes trachycarpawartberryfairy bells
Distribution: Occurring east of the Cascades crest in Washington; British Columbia south to Oregon, east to the Rocky Mountains and Great Plains of the U.S. and Canada, reaching Ontario and Michigan.
Habitat: Wooded slopes, often near streams, and in aspen groves.
Origin: Native
Flowers: May-July
Streptopus amplexifoliuscucumber root, clasping twisted stalk, clasp-leaf twisted-stalk, clasping twisted-stalk
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountains, also in northeastern North America.
Habitat: Open to dense moist forests from low elevations to subalpine.
Origin: Native
Flowers: May-July
Streptopus lanceolatusrosy twisted stalk
Distribution: Distributed throughout the Olympic and Cascade mountains in Washington; Alaska south to Oregon.
Habitat: Streambanks and damp woods at moderate to high elevations in the mountains.
Origin: Native
Flowers: June-August
Streptopus streptopoideskruhsea, Kruhsea
Origin: Native
Tulipa gesnerianacommon garden tulip
Origin: Introduced from Old World, exact origin unknown