A decumbent to ascending, much branched shrublet; branches up to 1 m long; young branches often zig-zag, reddish brown, puberulous, glabrescent. Leaflets linear or linear-fusiform, 3-5 x ±0.7 mm, terete, slightly incurved, tapering, mucronulate, densely short-tomentose (but glabrous on apex) to glabrescent. Bract subulate, 0.6-1 mm long, subglabrous. Pedicel ±1.5 mm long, short-pubescent. Bracteoles subulate-linear, 0.5-0.8 mm. Calyx densely short-sericeous; lobes linear-subulate, 1.8-2.1 mm long, subterete, acute, slightly incurved, only apically glabrous. Petals light yellow, turning ± reddish. Standard blade elliptic, ±5.5 x 4.5 mm, obtuse, glabrous except on the apical puberulous parts of the back. Wing blades oblong, ±5.2 x 2 mm, glabrous, with 2-3 rows of minute folds on the base. Keel blade ±4.3 x 2.5 mm, glabrous except for some appressed hairs on lower apical parts, with slightly convex upper margin. Pistil distinctly stipitate, pubescent on ovary and on base and upper side of basal half of style; ovules 2. Pod lanceolate, 10-12 x 4-4.5 mm, with very convex lower margin, short-sericeous on most parts.
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Scrambling shrublet to 60 cm. Leaves 3-foliolate, leaflets terete, slightly incurved, weak, densely short-hairy. Flowers single, at tips of branchlets, pale yellow, fading reddish, keel with a few hairs on lower part, calyx densely short-hairy, lobes awl-shaped, hairy.