Bushy peavine is an attractive perennial wildflower with several to many clustered stems arising 15-25 cm high from a stout, non-rhizomatous, woody base and thick taproot. The stems are spreading to erect and are angled in cross-section, but not winged. The herbage of stiff vetchling is both glabrous and glaucous, plants appearing pale green or bluish-green. The stipules are broadly lanceolate with a short, narrow basal lobe, and measure from 1-1.5 cm long. The pinnately compound leaves bear 2-5 pairs of oblanceolate to elliptic-oblanceolate leaflets and measure 16-28 mm long and 5-8 mm wide.
The flower stems are equal to or slightly longer than the uppermost leaves, and bear a short raceme of 1-3 flowers. The bell-shaped calyx tube is 4-5.5 mm long while the lobes are almost as long. The upper pair of lobes are triangular and almost as long as the lateral pair, while the lowest lobe is slightly longer. The corolla is white to lilac or pink-tinged with some pink venation. The corolla measures 20-25 mm long with the banner 20-28 mm long and the wings and keel successively about 3-5 mm shorter. The oblanceolate-elliptic fruit is a glabrous pod from 3.5-5 cm long and 7-8 mm wide.
Bushy peavine may be found amongst sagebrush between the elevations of 800-1750 meters on dry, rocky clay or basalt hillsides and in gullies.
Bushy peavine may be found east of the Cascade Mts. from Union County, Oregon to the upper Deschutes and John Day valleys and east to Adams County, Idaho and south to Modoc County, California.
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