Elaeagnaceae
Oleaster Family
2 genera
4 species
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Elaeagnus angustifoliaRussian-olive
Distribution: Common east of the Cascades in Washington; widely distributed throughout most of North America.
Habitat: Weedy escape, especially in riparian areas; often planted historically as a windbreak.
Origin: Introduced
Flowers: May-July
Elaeagnus commutataAmerican silver-berry, wolfberry
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to Quebec, south into Idaho, Montana and Utah.
Habitat: Gravel benches and scabland, commonly along watercourses.
Origin: Native
Flowers: June-July
Elaeagnus umbellata
Distribution: Scattered localities in Washington; widely distributed east of the Mississippi River in the U.S.
Habitat: Introduced from eastern Asia as ornamental shrub, occasionally escaping in disturbed areas and waste ground.
Origin: Introduced
Flowers: June-July
Shepherdia canadensisrusset buffalo-berry, soapberry, soopolallie
Distribution: Both sides of the Cascades in Washington; Alaska to Oregon, east to the Atlantic Coast.
Habitat: Moderately dry, open to wooded areas, sea level to mid-elevations in the mountains.
Origin: Native
Flowers: May-July