General:
Annual herb from a taproot; stems decumbent or climbing, 30-70 cm long/tall, slender, glabrous to sparsely stiff-hairy.
Leaves:
Alternate, pinnately compound; leaflets 4 to 12, linear to narrowly oblong-elliptic, rounded but abruptly pointed at the tip, 10-25 mm long; tendrils well developed, unbranched, grasping; stipules 2-4 mm long, linear, usually with a basal tooth.
Flowers:
Inflorescence an axillary raceme of 1-3 pea-like flowers, at the tips of long thread-like stalks; corollas lavender to bluish-white, 4-6 mm long; calyx-teeth unequal in size, the upper short-triangular, the lower linear-lanceolate and as long as the tube.
Fruits:
Pods, oblong, flattened, the tip rounded and abruptly short-pointed on one side, glabrous, 1-1.5 cm long; seeds 4 to 5.
If more than one illustration is available for a species (e.g., separate illustrations were provided for two subspecies) then links to the separate images will be provided below. Note that individual subspecies or varietal illustrations are not always available.
Illustration Source: The Illustrated Flora of British Columbia
Synonyms and Alternate Names:
Vicia tetrasperma var. tenuissima Druce