Perennial climbing or trailing herb up to 1·5 m. long.. Stems pubescent.. Leaflets 3, ovate or rhomboid, 1·2–4·2 cm. long, 1–3·8 cm. wide, acute or somewhat rounded at the apex, rounded at the base, shortly pubescent and gland-dotted on both surfaces; petiole 1–6 cm. long; rhachis 3–8 mm. long; petiolules 2 mm. long; stipules conspicuous, membranous, ovate, 7–10 mm. long, 2–5 mm. wide, acute or obtuse, veined, hairy on both surfaces.. Inflorescences axillary, dense; rhachis 1·5–6 cm. long; peduncle 1·5–16 cm. long; pedicels 1·5–2 mm. long; bracts deciduous, ± ovate, 2 mm. long, 1·5 mm. wide, pubescent.. Calyx pubescent; tube 1·5–2 mm. long; lobes lanceolate to oblong, 2·5–5 mm. long, the upper pair joined for ± two-thirds of their length.. Standard yellow, usually with purplish veining, obovate, 7–8 mm. long, 4·5–6 mm. wide, puberulous.. Pods narrowly oblong, 1–3 cm. long, 4 mm. wide, covered with short hairs and glands and, particularly on the faces, with some long tangled hairs.. Seeds brownish-black, oblong-reniform, longest dimension 3 mm., shorter dimension 2 mm., 1 mm. thick.
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