Amaryllidaceae
AMaryllis Family
4 genera
31 species
4 subspecies and varieties
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Allium acuminatumtaper-tip onion
Distribution: Widely distributed across Washington; British Columbia south to California, east to Wyoming.
Habitat: Common in dry, open, often rocky areas, low to moderate elevations in the mountains.
Origin: Native
Flowers: May-July
Allium amplectensnarrow-leaf onion
Distribution: Scattered locations on both sides of the Cascades crest in Washington; British Columbia south to California.
Habitat: Dry slopes and open meadows at low to moderate elevations.
Origin: Native
Flowers: May-July
Allium campanulatumrosy Sierra onion
Distribution: In the mountains in eastern Oregon, California dnd Nevada, and on Bethel Ridge, Yakima County, Washington.
Habitat: Dry soils at medium to high elevations.
Origin: Native
Flowers: June - July
Allium cepacultivated onion
Origin: Introduced from Old World, exact origin unknown
Allium cernuumnodding onion
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to Oregon, east to the Rocky Mountains; also in central and southeastern U.S.
Habitat: Open, somewhat moist areas, sea level to high elevations in the mountains.
Origin: Native
Flowers: May-July
Allium columbianumColumbia onion
Origin: Native
Flowers: May - July
Allium constrictumGrand Coulee onion
Distribution: Grant and Douglas Counties, Washington.
Habitat: Shallow, vernally-moist soils in low, open areas.
Origin: Native
Flowers: May - July
Allium crenulatumOlympic onion, scalloped onion
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia south to Oregon.
Habitat: Forest openings and mountain meadows, moderate to high elevations.
Origin: Native
Flowers: May-July
Allium dictuonBlue Mountain onion
Distribution: Blue Mountains of southeast Washington.
Habitat: Open, fairly dry, rocky areas.
Origin: Native
Flowers: June - July
Allium douglasiiDouglas' onion
Distribution: East of the Cascades in Washington; central and eastern Washington south to northeastern Oregon.
Habitat: Open, vernally-moist areas at low to moderate elevations.
Origin: Native
Flowers: May-July
Allium fibrillumCuddy Mountain onion, fringed onion
Distribution: Occurring chiefly in the southeastern counties of Washington; Washington east to Montana, south to Oregon.
Habitat: Moist, shallow soils in the mountains.
Origin: Native
Flowers: May-July
Allium geyeriGeyer's onion
Distribution: From the Cascades east in Washington and northern Idaho; disjunct in South Dakota, Utah and Texas.
Habitat: Low meadows and along streams.
Origin: Native
Flowers: May - June
var. geyeri – Geyer's onion
var. tenerum – Rydberg's onion
Allium macrumrock onion
Distribution: In Washington, Kittitas and Douglas Counties south to Walla Walla and Klickitat Counties; more common in north-central Oregon.
Habitat: Lithosol and barren, gravelly soils in the shrub-steppe.
Origin: Native
Flowers: April - May
Allium neviiNevius's garlic, Nevius's onion
Distribution: East slope and foothills of the Cascades, Kittitas County, Washington, south to Wasco County, Oregon
Habitat: Open areas where the soil is wet into the spring
Origin: Native
Flowers: May - July
Allium nigrumblack garlic, Homer's garlic
Origin: Introduced
Allium robinsoniiRobinson's onion
Distribution: Near the Columbia River in Washington; Washington south to north-central Oregon.
Habitat: Sand and gravel near the river to rocky, even lithosol benches.
Origin: Native
Flowers: April-May
Allium sativumcultivated garlic
Distribution: West of the Cascades in Washington.
Habitat: Disturbed areas near towns, cities, agricultural fields where cultivated.
Origin: Introduced
Flowers: May-July
var. sativum – garlic
Allium schoenoprasumchives
Distribution: Across southern Canada and northern United States; in Washington, along the Wenatchee and Columbia Rivers
Habitat: Wet meadows, rocky or gravelly streambanks and lake shores
Origin: Both native and introduced populations
Flowers: April - August
Allium scilloidesfragile onion, scilla-like onion
Distribution: Douglas County to Klickitat County, Washington, lower foothills of the Cascades to east of the Columbia River
Habitat: Scablands and dry, barren, gravelly soils.
Origin: Native
Flowers: March - April
Allium textiletextile onion, white wild onion
Origin: Native
Flowers: May - June
Allium tolmieiTolmie's onion
Distribution: South-east Washington; eastern Oregon, western Idaho and north-east California.
Habitat: Rocky, gravelly or clayey soils, generally with sparse cover.
Origin: Native
Flowers: April-July
var. tolmiei – Tolmie's onion
Allium triquetrumthree-corner leek
Origin: Introduced
Allium tuberosum
Origin: Introduced
Allium ursinum
Origin: Introduced
Allium validumPacific onion, swamp onion
Origin: Native
Flowers: June - August
Allium vinealewild chives, crow garlic, wild garlic
Distribution: Scattered localities throughout Washington.
Habitat: Disturbed areas.
Origin: Introduced from Europe
Flowers: June - August
Galanthus nivalissnowdrop
Distribution: Garden escape in northeastern United States and adjacent Canada; occasional in western Washington.
Habitat: Abandoned gardens, roadsides, open forests.
Origin: Introduced from Europe
Flowers: February - March
Leucojum aestivumsummer snowflake
Origin: Introduced from Europe
Narcissus ×incomparabilisnonesuch daffodil, hybrid daffofil
Origin: Introduced to gardens from Europe
Narcissus poeticuspheasant's eye narcissus, poet's narcissus
Distribution: Occasional escape in lowland western Washington; occasional escape in areas throughout much of North America.
Habitat: Roadsides, fields and waste places.
Origin: Introduced from Europe
Flowers: April-May
Narcissus pseudonarcissusdaffofil
Distribution: Escaped and naturalized over much of eastern United States; occasional in western Washington, especially Island County.
Habitat: Roadsides, fields and waste places.
Origin: Introduced from Europe
Flowers: April - May