Distribution: Occurring on both sides of the Cascades crest in Washington; Washington east to Idaho, also widespread in eastern North America.
Habitat: Forest edge, riparian zones, fields, and other disturbed areas where escaped from cultivation.
Origin: Introduced from Europe
Conservation Status: Not of concern
Spreading tree to 20 m. tall, the bark smooth and gray.
Leaves opposite, palmately 5-lobed, the lobes sharp-pointed, with 1 or 2 sharp-pointed teeth.
Plant monoecious; flowers many, yellow, in upright, axillary panicles, appearing before leaves.