Distribution: Introduced in scattered localities throughout Washington; east to Idaho, and in northeastern United States.
Habitat: Escapes 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.