Densely or moderately furnished with weak ± spreading hairs, mainly branched from base; stems prostrate, ascending or erect, 5-30 cm. Stipules lanceolate-subulate, entire. Leaflets obovate- to obcordate-cuneate, denticulate, 5-20 x 3-15 mm. Peduncle 1,5-3 cm. Flowers 5-12, shortly racemed. Calyx campanulate, 2,5-4 mm, tube 1,5-2,2 mm; teeth triangular, unequal, two upper teeth about as long as tube or shorter , three lower teeth half as long as tube or shorter . Corolla yellow, 4-7 mmm. Legumes linear, terete, arcuate, semicircular or circular, 1-2,5 x 0,15-0,25 cm, seed-bearing part 0,8-2 cm, tapering into a beak 0,3-0,8 cm, tip of beak slightly hooked. Seeds 3-4, oblong, 2,5 x 1,25 mm, finely tubercled.
1. Plant moderately furnished with weak spreading hairs; peduncle 1,5-3 cm; legumes semicircular to circular, 2-2,5 cm ....................var. spruneriana
1. Plant densely pubescent or villous; peduncle 0,5-1,5 cm; legumes arcuate, 1-2 cm var. sibthorpii