Distribution: Established chiefly west of the Cascades in Washington; British Columbia south to California, scattered locations in eastern North America.
Habitat: Waste land.
Origin: Introduced; native to Europe and Africa
Conservation Status: Not of concern
Strong, woody, climbing vine to 20 m. long.
Leaves pinnately compound with 5 narrowly to broadly ovate-cordate leaflets 3-6 cm. long, entire or shallowly 3-lobed.
Flowers perfect, in several-flowered bracteate panicles; sepals 4, creamy white, narrowly oblong-lanceolate, 6-15 mm. long; petals none; stamens and pistils numerous.
Achenes hairy; styles persistent, 2.5-5 cm. long.