An erect, branched shrub 0.6-1.5 m tall, densely branched. Young branches densely short-tomentose. Leaflets linear, 3-8 mm long, 0.4-0.7 mm broad, subterete or slightly flattened, soft, flexible, obtuse to acute, white-tomentose or partly glabrous (certain of the lower leaflets). Inflorescences uni-or bifloral, on lateral short-shoots, scattered in high number along the branches. Flowers small, light yellow. Bract emerging on the middle of pedicel, subulate, 0.4-0.8 mm long, pubescent. Pedicel 1.2-1.8 mm long, white-tomentose. Bracteoles tooth-like, 0.1-0.3 mm long, pubescent. Calyx campanulate, grey-tomentose or sericeous; lobes triangular to short-subulate, 0.9-1.5 mm long. Petals pale or light lemon-yellow, wing and keel claws ± two-thirds the length of the blades. Standard blade 4.5-5.5 x 4-5 mm, apically incurved, acute; tomentose on the apical parts of the midrib of back. Wing blades narrowly ovate, elliptic, 2.8-3.5 x 1.5-2 mm, glabrous, with 4 rows of minute folds on basal half of outside. Keel blades 3.1-3.4 x 1.7-2 mm, glabrous, with slightly concave upper margin and with rounded upper-basal lobe. Pistil tomentose on upper half of ovary and style base; ovules 2. Pod obliquely ovate, 4.5-5.5 x 2.7-3.2 mm, white-woolly.
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Erect, densely branched shrub to 1.5 m. Leaves 3-foliolate, leaflets subterete or slightly flattened, weak, soft, shortly white-hairy. Flowers 1 or 2 on short shoots, densely scattered, pale to lemon-yellow, claws to two thirds length of blades, wings and keel glabrous, calyx grey-hairy, lobes triangular to short awl-shaped.