Populus
aspen, cottonwood, poplar
6 species
1 subspecies and varieties
1 subspecies and varieties
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Populus alba – white poplar
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Disturbed areas often associated with urban and suburban areas, riparian zones.
Origin: Introduced from Eurasia
Flowers: March-May
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Disturbed areas often associated with urban and suburban areas, riparian zones.
Origin: Introduced from Eurasia
Flowers: March-May
Growth Duration: Perennial
Populus deltoides – eastern cottonwood
Distribution: Occurring east of the Cascades crest in Washington; introduced from British Columbia to Oregon, east to Idaho; native from east of the Rocky Mountains to the Atlantic Coast.
Habitat: Riparian zones and marshes.
Origin: Introduced from central and eastern North America
Flowers: April-May
Distribution: Occurring east of the Cascades crest in Washington; introduced from British Columbia to Oregon, east to Idaho; native from east of the Rocky Mountains to the Atlantic Coast.
Habitat: Riparian zones and marshes.
Origin: Introduced from central and eastern North America
Flowers: April-May
Populus nigra – black cottonwood, lombardy poplar
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Old homesteads and fencerows at low elevation.
Origin: Introduced from Europe
Flowers: March-April
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east across North America to the Atlantic Coast.
Habitat: Old homesteads and fencerows at low elevation.
Origin: Introduced from Europe
Flowers: March-April
Growth Duration: Perennial
Populus tremuloides – quaking aspen
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across much of North America to the Atlantic Coast.
Habitat: Moist areas, low to fairly high elevations in the mountains
Origin: Native
Flowers: April-June
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; Alaska to California, east across much of North America to the Atlantic Coast.
Habitat: Moist areas, low to fairly high elevations in the mountains
Origin: Native
Flowers: April-June
Growth Duration: Perennial
Populus trichocarpa – black cottonwood
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east to Alberta and Wyoming.
Habitat: Streambanks, riparian zones, river corridors, and moist woods, from sea level to middle elevations in the mountains.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
Distribution: Widely distributed on both sides of the Cascades crest in Washington; Alaska to California, east to Alberta and Wyoming.
Habitat: Streambanks, riparian zones, river corridors, and moist woods, from sea level to middle elevations in the mountains.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
