Corylus
filbert, hazelnut
2 species
2 subspecies and varieties
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Corylus avellanacommon filbert, European hazelnut
Distribution: Widely planted as an ornamental and occasionally naturalizing in western Washington lowlands; British Columbia south to Oregon.
Habitat: Abandoned plantings, roadsides, waste sites, forest edge.
Origin: Introduced
Flowers: January-April
Corylus cornutabeaked hazelnut
Distribution: Widespread in North America from British Columbia to Newfoundland, south to California, Colorado, Missouri, Ohio, and Georgia. In WA on both sides of the Cascades, and in the eastern portion of the state.
Habitat: Forest edge and openings, thickets, and rocky slopes at low to middle elevations.
Origin: Native
Flowers: January - March
ssp. californica – California hazel
ssp. cornuta – beaked hazel