Decumbent or ascending shrub, to c. 40 cm tall; stems slender, often sparsely hairy, densely tuberculate. Leaves pinnate, petiolate; leaflets 5–7, linear to narrow-oblanceolate, 3–15 mm long, c. 1 mm wide, shortly petiolulate, more or less glabrous, margins revolute or recurved; stipules absent. Flowers 8–10 mm long, in short, terminal, few-flowered heads; pedicel to c. 10 mm long, often shorter than calyx. Calyx to c. 8 mm long, black, glabrous outside, tuberculate, lobes valvate, triangular-lanceolate, acute, not ridged at edges, inside margins tomentose; petals bright yellow or greenish-yellow, outer surface with grey markings; keel black towards apex, not ciliate; ovules 8–10. Pod obliquely obovoid or broad-obloid, 8–10 mm long, c. 6 mm wide, turgid, glabrous, stipitate; seeds numerous, reniform, c. 1 mm long, light brown. Flowers Aug.–Oct.
EGL, EGU, HFE. Also NSW. Very rare in Victoria where known only from the upper Genoa River and the upper Cann River Valley. Found in dry sclerophyll forest and heathland, often on sandy soils.
