4 species
1 subspecies and varieties
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Quercus garryanaGarry 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
var. garryana – Garry oak, Oregon white oak
Quercus palustris
Origin: Introduced
Quercus roburBritish oak, English oak
Origin: Introduced from Europe/Africa
Growth Duration: Perennial
Quercus rubrared oak
Origin: Introduced from central and eastern NA
Growth Duration: Perennial