Distribution: Occurring west of the Cascades crest in lowland western Washington; British Columbia to California.
Habitat: Forest understory and edge, thickets, balds, and open woodlands at low elevations.
Conservation Status: Not of concern
Shrubby climbing vines, often to 6 m., with hollow twigs that are glaucous when young.
Leaves opposite, firm, glabrous to variously hairy, 2-7 cm. long and 2.5-5 cm. wide, one or more of the pairs at the end of each twig grown together at the base, the lower short-petiolate, sub-cordate, with interpetiolar stipules.
Flowers in terminal or axillary inflorescences, in several compact verticels on a well-developed axis, the lower blooming first; corolla pink, or yellow tinged with pink, 12-18 mm. long, deeply two-lipped, the lips about as long as the tube, the tube swollen on one side above the base; stamens 5, ovary 3-celled, inferior.
Fruit a red berry nearly 1 cm. thick.