Distribution: Occurring chiefly west of the Cascades crest in Washington; British Columbia to California, east to Nevada.
Habitat: Open woods at low elevations.
Flowers: April-July
Origin: Native
Growth Duration: Perennial
Conservation Status: Not of concern
Pollination: Bees
Glabrous to pubescent shrubs or climbing vines 1-15 m. tall.
Leaves trifoliate; leaflets ovate to obovate, sinuate to deeply lobed, rounded to acute, 3-7 cm. long.
Inflorescence of loose, axillary panicles; flowers mostly imperfect, dioecious, 1-2 mm. long; calyx 5-parted, pubescent to glabrous, about half the length of the petals; petals 5, spreading; staminate flowers with 5 exerted stamens, the filaments attached to the rim of a fleshy, flat disk; ovary superior, style 1, stigmas 3.
Fruit drupe-like, globose, glabrous, about 5 mm. long.
Publication: Leafl. Bot. Observ. Crit. 1(9): 119. 1905.
Toxicodendron radicans (L.) Kuntze ssp. diversilobum (Torr. & A. Gray) Thorne
PNW Herbaria: Specimen records of Toxicodendron diversilobum in the Consortium of Pacific Northwest Herbaria database.
WA Flora Checklist: Toxicodendron diversilobum checklist entry.
OregonFlora: Toxicodendron diversilobum information.
E-Flora BC: Toxicodendron diversilobum atlas page.
CalPhotos: Toxicodendron diversilobum photos.
USDA Plants: Toxicodendron diversilobum information.
