Perennial herb, up to 50 mm high. Stems procumbent, usually mat-forming. Leaves with up to 5 leaflets per leaf; terminal leaflet up to 3 mm long; lower surface of leaflets greyish tomentose. Flowers: inflorescence very short; peduncle not exceeding subtending leaf; petals completely glabrous; corolla bright purple; Mar. Pods short, straight, covered with appressed greyish hairs.
Occasionally woody, mat-forming annual, up to 0.5 m tall, greyish with densely appressed, strigose hairs. Leaves 3-5-foliolate, leaflets alternate, terminal leaflet obovate. Flowers in congested axillary racemes, ± equal to or shorter than subtending leaf, pink, stamens exceeding the lanceolate-lobed calyx.