2 species
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Rhus glabrasmooth sumac
Distribution: Occurring east of the Cascades crest in Washington; British Columbia to Mexico, east to the Atlantic Coast.
Habitat: Dry hillsides and draws, low to moderate elevations.
Origin: Native
Flowers: April-July
Growth Duration: Perennial
Rhus typhinastaghorn sumac
Distribution: Occurring in scattered locations in Washington; occurring in scattered states in western North America; native from central U.S. east to the Atlantic Coast.
Habitat: Disturbed areas; escaping from cultivation.
Origin: Introduced from eastern North America
Flowers: May-July
Growth Duration: Perennial