Prostrate shrublet, up to 1.4 m across, woody basally. Leaves mainly 5-foliolate, ± glabrous, leaflets linear. Flowers 1-4, in short congested racemes, yellow, calyx lobes long, narrow, upper and lateral pairs fused high up, minutely hairy to densely silky, back of standard sometimes minutely hairy on midrib. Pod stalked, linear, distinctly falcate, compressed.