8 species
1 subspecies and varieties
Show only taxa with photos
Scientific name
Common name
– resin 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
– red 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
– canoe birch, paper birch, western paper birch, white birch
Distribution: Occurring on both sides of the Cascades crest in Washington; Yukon Territory to northeastern Oregon, east across the northern U.S. and Canada to the Atlantic Coast.
Habitat: Moist, open to dense woods at low to middle elevations.
Origin: Native
Flowers: March-May
Growth Duration: Perennial
– European 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
– gray birch
Origin: Introduced
–
downy birch
Origin: Introduced
– bog 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
– hybrid 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