A small, prostrate, mat-like shrublet more or less closely pressed against the ground; main stem basally up to more than 10 mm thick, branchlets slender, adpressedly puberulous, sparsely leafy. Leaves trifoliolate; those of young long-shoots with leaflets flat, oblanceolate (-narrowly obovate), 3-7 x 0.5-1.5 mm, obtuse or acute, green, subglabrous (puberulous on basal parts); leaflets of short-shoots much smaller: 1-3 x 0.5-1.5 mm. Inflorescence terminal, unifloral, or rarely with 2-3 flowers, on a peduncle-like (10-)30-60 mm long, puberulous internode. Bract oblong-subulate, 1.5-2 x 0.5 mm, ciliate. Pedicel 1-2 mm long, puberulous. Bracteoles similar to the bract. Calyx infundibular-campanulate, sparsely puberulous; lobes narrowly triangular, 1.2-2.4 mm long, acute, subglabrous. Petals yellow, with rather short claws. Standard blade broadly obovate or orbicular, apically retuse, with a 'tip', short-sericeous on the back. Wing blades oblong-obovate, 4.5-6 x 2-3 mm. Keel blades 6-7 x 2.5-3 mm, with upper margin concave, sometimes apically with a small tooth-like lobe. Pistil pubescent only on upper side of the ovary and style base; ovary elongate; ovules 4-7. Pod lanceolate, ±12.5 x 4 mm, subglabrous, smooth.
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Prostrate, mat-like shrublet. Leaves 3-foliolate, leaflets oblanceolate, flat, subglabrous. Flowers 1(-3) on slender, terminal peduncles, yellow, wing glabrous, keel glabrous, sometimes with a small, apical, tooth-like lobe, calyx subglabrous, lobes narrowly-triangular.