Shrub or shrublet, 0.4-2.0 m. Leaves 3-foliolate, leaflets terete, sausage-shaped, subglabrous. Flowers in terminal heads, white or cream-coloured, sometimes with pink on wings, wings sometimes sparsely hairy, keel glabrous, calyx shortly silky, lobes awl-shaped, split between upper two lobes deeper than those between other lobes.