Climbing or ascending annual herb; stems 15–80 cm long, angular, glabrous or sparsely hairy. Leaves 1–4.5 cm long excluding the simple or pinnate tendril; leaflets 6–12, linear to oblong, 5–20 mm long, 1–3 mm wide, glabrous to appressed-pilose; stipules linear, 2–3 mm long, entire, base with a single tooth. Flowers 1–3, pedunculate; peduncle about as long as subtending leaf; pedicel 2–3 mm long; calyx campanulate, 2–4 mm long, appressed-pilose, teeth narrow-triangular, unequal, shorter than calyx tube; corolla 5–8 mm long, pale blue, purple-veined; standard broadly ovate, reflexed, longer than wings or keel, limb equalling claw; keel shortest, blue-tipped. Pod linear-oblong, 8–15 mm long, 2.5–4.5 mm wide, compressed, light brown, glabrescent; seeds 3–4, subglobose, c. 2 mm long, compressed, brown, often mottled. Flowers mainly Sep.–Jan.
MuM, GleP, VVP, VRiv, MuF, GipP, OtP, Gold, CVU, NIS, HSF, HNF, OtR, Strz. Also naturalised WA, SA, Qld, NSW, Tas., New Zealand. Native to Europe, North Africa, Asia. Widespread across the state where found in damp situations on roadsides, in pasture and other disturbed sites.
