Weak, trailing shrubs. Leaves alternate, simple, entire; stipules minute, free. Inflorescence a terminal condensed raceme or head; flowers subtended by small, persistent bracts or by floral leaves showing a gradation from leaves with enlarged stipules to simple bracts on the innermost or terminal flowers; corolla orange-yellow with red markings, standard longer than lower petals, wings longer than keel; stamens 10, free, unequal; ovary and base of style hairy, style thick with hooked apex; ovules 2 on short funicles. Pod turgid, broad-ovoid or rounded, dark grey to brown, hairy; seeds arillate, light brown with darker mottling.