Perennial, flat creeper, branches 0.05-0.60 m long, mat-forming, runners rooting at nodes. Leaves mostly trifoliolate. Leaflets narrowly obovate. Inflorescences axillary racemes; peduncles up to 100 mm long. Flowers 7-10 mm long, yellow. Calyx: lobes widely triangular, short, obtuse, ± glabrous. Gynoecium glabrous. Flowering time Sept.-Jan. Pod glabrous or pubescent only along upper suture; folded like a concertina, rarely not folded.