Adoxaceae
Muskroot Family
2 genera
8 species
5 subspecies and varieties
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Sambucus ceruleablue elderberry
Distribution: Widely distributed on both sides of the Cascades crest in Washington; southern British Columbia to California, east to the Rocky Mountains.
Habitat: Forest edge, fields, and roadsides from near sea level to middle elevations in the mountains.
Origin: Native
Flowers: May-July
Sambucus nigrablack elderberry
Distribution: Uncommon west of the Cascades crest in Washington; southern British Columbia to northern Oregon; eastern North America where S. nigra var. canadensis is native. and var. nigra is more frequently escaped.
Habitat: Disturbed areas where rarely escaping from nearby cultivation.
Origin: Introduced from Europe and eastern North America
Flowers: May-July
Sambucus racemosared elder
Distribution: Widely distributed throughout much of Washington; ranging throughout the United States and Canada, except the southern States.
Habitat: A wide variety of areas, typically in forests, fields, and wet areas.
Origin: Native
Flowers: March-July
var. arborescens – coast red elderberry
var. melanocarpa – black elderberry
Viburnum edulehigh-bush cranberry, squashberry
Distribution: Widely distributed on both sides of the Cascades in Washington; Alaska south to Newfoundland, south to northern Oregon, Colorado and Pennsylvania.
Habitat: Moist woods and swamps.
Origin: Native
Flowers: May-July
Viburnum ellipticumwestern blackhaw, oval-leaved viburnum
Distribution: Occurring west of the Cascades crest chiefly along the southern border in Washington; southern Washington to northern California.
Habitat: Thickets, bottom lands, and open woods at low to middle elevations.
Origin: Native
Flowers: May-June
Viburnum lantanawayfaring-tree
Origin: Introduced
Viburnum opulushighbush cranberry
Distribution: Scattered localities throughout Washington; British Columbia south to the Columbia River Gorge, east to Idaho and Montana.
Habitat: Moist woods at low to moderate elevations.
Origin: Native
Flowers: May-July
var. americanum – American bush cranberry, cranberry-tree
var. opulus – high-bush cranberry
Viburnum tinuslaurustinus
Origin: Introduced