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.
Flowers: April-June
Origin: Introduced from Europe/Africa
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Wind
[none provided]
PNW Herbaria: Specimen records of Quercus robur in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Quercus robur checklist entry.
OregonFlora: Quercus robur information.
E-Flora BC: Quercus robur atlas page.
CalPhotos: Quercus robur photos.
USDA Plants: Quercus robur information.