Shrub, dwarf shrub or scrambling herb with decumbent stems, up to 1.5 m high. Leaves pinnate, with 6-20 leaflets; leaflets narrow oblong-elliptic, 7-20 x 1.5-4.5 mm, apex acuminate, mucronate, veining dark, reddish brown on lower surface of leaflets; stipules linear, setaceous. Flowers: in a lax, few-flowered raceme; peduncles 150-160 mm long; style bearded at apex; corolla pink or reddish purple; Nov.-Apr. Pods linear, 35 x 3 mm, subfalcate, appressed-pubescent.
Leaves pinnate with 3–9(10) pairs of leaflets; petiole 0.1–1.4(2–3) cm long, petiole and rachis together (2)3–6.5(8.5) cm long, pubescent like the stem; leaflets (1)1.5–2.5(3) × 0.15 × 0.4(0.55) cm, narrowly elliptic to linear-elliptic, ± cuneate at the base and acute or subacute at the apex; upper surface glabrous, lower surface thinly appressed-pubescent; stipules 3–5(10) × 0.2–0.5 mm, linear.
Annual or perhaps sometimes short-lived perennial, with an erect branching stem up to 60 cm high or sometimes with several procumbent trailing branching stems arising from a common base.
Flowers in terminal (appearing leaf-opposed), rather slender, lax, ascending racemes up to 18 cm long; bracts 1.5–3 mm long, linear; pedicels 2–7 mm long.
Seeds (5)6–7, c.2.8 × 1.2 × 1.2, subcylindric-oblong, with a white aril c.0.6 mm long towards one end.
Calyx (1.5)2(3) mm long, ± funnel-shaped, shortly appressed-pubescent; teeth about equalling the tube.
Pods (27)30–40 × 3–4 mm, usually darkish brown, very shortly appressed-pubescent.
Petals 4–6 mm long, pink to purple or perhaps occasionally whitish.
Stems rather sparsely ± appressed-pubescent to subglabrous.
Ovary appressed-pubescent; style glabrous.
Staminal tube joined above.