Quercus
oak
3 species
1 subspecies and varieties
1 subspecies and varieties
Show only taxa with photos
Order by:
Scientific name
Common name
Display as:
Quercus garryana – Garry oak, Oregon white oak
Distribution: Occurring on both sides of the Cascades crest and east in the Columbia River Gorge in Washington; Vancouver Island, British Columbia to California.
Habitat: Prairies, meadows, balds, rocky bluffs, and related open areas mostly at low elevations.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest and east in the Columbia River Gorge in Washington; Vancouver Island, British Columbia to California.
Habitat: Prairies, meadows, balds, rocky bluffs, and related open areas mostly at low elevations.
Origin: Native
Flowers: April-June
Growth Duration: Perennial
• var. garryana – Garry oak, Oregon white oak
Quercus robur – British oak, English oak
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to Oregon, east to Montana; also escaped in eastern North America.
Habitat: Forest edges, thickets, roadsides, and hedgerows.
Origin: Introduced from Europe/Africa
Flowers: April-June
Growth Duration: Perennial
Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to Oregon, east to Montana; also escaped in eastern North America.
Habitat: Forest edges, thickets, roadsides, and hedgerows.
Origin: Introduced from Europe/Africa
Flowers: April-June
Growth Duration: Perennial
Quercus rubra – red oak
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho; native to central and eastern North America.
Habitat: Disturbed forest edge, fields, and wastelots.
Origin: Introduced from central and eastern North America
Flowers: April-June
Growth Duration: Perennial
Distribution: Occurring on both sides of the Cascades crest in Washington; British Columbia to California, east to Idaho; native to central and eastern North America.
Habitat: Disturbed forest edge, fields, and wastelots.
Origin: Introduced from central and eastern North America
Flowers: April-June
Growth Duration: Perennial
