Corolla bright yellow; standard 10–13 × 10–13 mm, obovate, subcircular or ± rhomboidal, sericeous outside; wings 10–11 × 4.5 mm, elliptic to obovate-oblong, with rows of folds between the upper veins and with some brown hairs near apex outside; keel little shorter than the wings, curved, the petals half-ovate, obtuse, appendiculate and with a crest on the lateral surface towards the base, claw 2.5–3 mm long.
Inflorescence terminal, sometimes leaf-opposed, usually contracted and subumbelliform, 6–12-flowered or more; peduncle 5–45 mm long; bracts up to 17 mm long, entire or 3-partite; bracteoles up to 10 × 2 mm, linear-lanceolate or lanceolate.
Calyx 11–14 mm long, sericeous; upper lip divided nearly to the base, the lobes lanceolate; lower lip with teeth 5–6 mm long, narrowly triangular.
Stems simple or branching only toward the apex; indumentum yellowish-brown to greyish-brown, of subappressed spreading hairs c. 2.5 mm long.
Seeds 2–2.5 mm long, elliptic or subreniform to slightly quadrangular in outline, light brown.
Pod up to 28 × 6 mm, narrowly oblong, flat, silky pubescent, c. 5–9-seeded.
Suffrutex up to 50 cm high, with a few stems from a small woody rootstock.