Native to (or naturalized in) Oregon:
- Deciduous vine, 30-40 ft (9-12 m). Leaves alternate, simple, 5-10 cm wide, 3-lobed, (tricuspidata: three pointed, the leaves), acuminate and coarsely serrated lobes, (smaller leaves may have 3 leaflets), glossy dark green in summer, turning red and scarlet in fall. Short tendrils with terminal adhesive disks. Flowers are inconspicuous, greenish, in globose clusters. Fruit are bluish black berries.
- Sun to full shade. Withstands trying city conditions.
- Hardy to USDA Zone 4 Native to central China, Japan
- Corvallis: excellent specimen on wall at northwest corner of Walnut Blvd. and Rolling Green Dr.; also on the wall of the parking lot at Jackson Ave. and 21st St.