Low, usually ascending shrublet, 0.2-0.5 m high; closely branched, with spreading, soft, white-villous branches. Leaflets linear, 2.0-4.5 mm long, slightly incurved, densely white-or grey-puberulous. Inflorescences unifloral, one or few on lateral short-shoots. Flowers pale yellow, sometimes with purplish shades. Calyx short-tomentose, lobes narrowly triangular, obtuse-acute, densely silvery sericeous. Petals: back of standard almost completely pubescent. Pod obliquely ovate, dark, smooth, tomentose on most parts.