Betula
birch
8 species
1 subspecies and varieties
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Common name
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Betula glandulosaresin birch, swamp birch
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east to the Rocky Mountain States and to northeastern North America.
Habitat: Stream banks, margins of marshes, lakes and bogs, and on alpine slopes.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
Betula occidentalisred birch, river birch, water birch
Distribution: Occurring chiefly east of the Cascades crest in Washington; Alaska to California, east in Canada to Ontario, east in the U.S. to the Rocky Mountains and northern Great Plains.
Habitat: Moist areas, streambanks at low elevations.
Origin: Native
Flowers: February-June
Growth Duration: Perennial
Betula papyriferacanoe birch, paper birch, western paper birch, white birch
Distribution: Alaska to Oregon, east of the Cascades except in northwest Washington, east to the Atlantic coast
Habitat: Moist, open to dense woods, low to moderate elevations
Origin: Native
Flowers: March - May
Growth Duration: Perennial
Betula pendulaEuropean weeping birch
Distribution: Occurring chiefly west of the Cascades crest in Washington; southern British Columbia to Oregon; also in northeastern North America.
Habitat: Disturbed areas associated with urban and suburban development where the trees escape from cultivation.
Origin: Introduced from Eurasia
Flowers: April-May
Growth Duration: Perennial
Betula populifolia
Origin: Introduced
Betula pubescens
Origin: Introduced
Betula pumilabog birch, swamp birch
Distribution: Occurring chiefly west of the Cascades crest in Washington; Yukon Territory to Oregon, east to northern Idaho and western Montana, east to the Atlantic.
Habitat: Wet places, often in swamps and bogs.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
Betula ×utahensishybrid birch
Distribution: Occurring chiefly east of the Cascades crest in Washington; British Columbia to Washington, east to the northern Rocky Mountains and northern Great Plains.
Habitat: Moist, open to dense woodlands or swamps from lowlands to montane.
Origin: Native
Flowers: March-May
Growth Duration: Perennial