Erect or spreading shrub. Leaves 3-foliolate, leaflets sub-terete, straight or slightly curved, sub-glabrous. Tiny flowers are solitary, scattered at branch ends, pale yellow or nearly white with keel tip and back of standard dull violet, wings glabrous, keel sometimes hairy, calyx sparsely hairy, lobes awl-shaped, subterete, subglabrous.