Spreading prostrate annual; stems sparsely to densely hairy, ribbed. Lvs densely hairy; leaflets subsessile, elliptic or oblong, acute and shortly mucronate, in 7-15 pairs, 3-12 mm long; stipules somewhat adnate to petiole, triangular to ovate, minute. Heads 3-6-(8)-flowered; bracts subtending the heads with (3)-5-9 leaflets; bracteoles subtending fls minute, scarious; peduncles > or ± = lvs. Calyx sparsely to moderately hairy; calyx teeth lanceolate, about = or < tube. Corolla white to pink with reddish stripes on standard, (6)-7-10 mm long. Pod densely hairy when young, becoming less so or glabrous when mature, constricted between seeds, veined, curved or straight, compressed, 12-30 mm long, with 3-7, 1-seeded segments; seeds smooth, brown.