General: Perennial herb from a rhizome; stems mostly single, trailing or climbing, nearly glabrous to densely hairy, 15-100 cm long/tall.
Leaves: Alternate, pinnately compound; leaflets 8 to 12 (18), linear to oval, blunt, notched, pointed, or few-toothed at the tip, 1-3.5 cm long, glabrous to hairy, thin to leathery with prominent parallel veins on lower surface; tendrils simple to branched, grasping; stipules deeply toothed, 3-10 mm long, crescent-shaped.
Flowers: Inflorescence a loose, axillary, stalked raceme of 3 to 9 pea-like flowers, the racemes shorter than the subtending leaves; corollas bluish-purple to reddish-purple, 12-23 mm long; calyces 1/3 as long as the corollas, the 5 teeth to nearly 1/2 the length of the tube.
Moist to mesic meadows, thickets and open forests in the lowland, steppe and montane zones; common in S two-thirds of BC, less frequent northward, absent from the Queen Charlotte Islands; N to SE AK and NT, E to PQ and NB and S to OH, KS, WV, NM and CA.
A shade-tolerant/intolerant, submontane to subalpine, transcontinental North American forb. Occurs on moderately dry to fresh, nitrogen-medium soils within boreal, temperate, and mesothermal climates; its occurrence decreases with elevation. Scattered in youngseral forests on water-shedding and waterreceiving sites. Symbiotic with nitrogen-fixing organisms.
Recommended citation: Author, Date. Page title. In Klinkenberg, Brian. (Editor) 2020. E-Flora BC:
Electronic Atlas of the Plants of British Columbia [eflora.bc.ca]. Lab for
Advanced Spatial Analysis, Department of Geography, University of British
Columbia, Vancouver. [Accessed:
2020-10-26 12:01:03 PM
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