Undershrub, almost annually burnt down by forest fires; branches thinly pubescent. Leaf c. 2.5-6.5 cm long, petiole c. 1.2-1.3 cm long; leaflets 3-5-(11-13), c. 1.0-2.0 cm long, obovate, oblong, often emargintate, sparesly appressed pubescent on both surfaces; stipules minute caducous. Inflorescence a raceme, usually from woody branches, c. 20.0-30.0 cm long. Bract small caducous, shorter than pedicel. Calyx small, teeth triangular, smaller than cup. Corolla pale purple with darker lines, c. 8-9 mm long. Fruit c. 2.5-3.8 cm long straight, 9-12-seeded.