Erect or ascending, perennial herb; stems moderately to densely clothed in appressed hairs above, almost glabrous or sparsely hairy below. Lvs moderately to densely hairy on petioles and undersurface of leaflets, glabrous above; petioles 2-20 mm long; leaflets narrowly obovate to elliptic, obtuse and mucronate, cuneate to obtuse at base, irregularly serrate near apex, uniform in colour, 6-15-(20) mm long; terminal petiolule 2-5 mm long; lateral petiolules up to 1 mm long; stipules broadly ovate to lanceolate, acuminate, entire or irregularly serrate. Infl. with (6)-8-numerous fls; peduncles moderately to densely hairy, > petioles; pedicel < or ± = calyx tube. Calyx moderately hairy; calyx teeth triangular, acuminate, ± = tube. Corolla yellow, 6-10 mm long. Pod moderately hairy, coiled in 11/2-3 turns with a hole through the centre, veined but not spiny, 3-5 mm diam., many-seeded; seed yellow-green to brownish, 2-2.5 mm long.