Erect, annual or perennial herb with glabrous or sparsely hairy branches; leaves digitately trifoliolate, leaflets, broadly elliptic, linear- lanceolate, usually toothed, mucronate; stipules adnate to petiole, lanceolate, ciliate; flowers small, copious, in dense, axillary, peduncled heads; calyx tube turbinate, teeth 5, subequal; corolla creamy yellow, petals persistent, adnate to staminal tube, standard and wings narrow, keel straight, obtuse; stamens-10, diadelphous, filaments more or less dilated, anthers uniform; ovary sessile or subsessile, few ovuled, style filiform, incurved, stigma oblique; pods usually membranous, dehiscent, not jointed, included within the calyx.