Perennial climbing or prostrate herb, with several stems 0.3-several metres long from a woody rootstock. Stems glabrous to velvety. Leaflets 3, 0.9-6 x 0.8-5 cm, rhombic, ovate or suborbicular, the laterals oblique, acuminate, acute or rounded at the apex, cuneate, rounded or truncate at the base, glabrescent to velvety, densely gland-dotted beneath; petiole 0.7-4 cm long; rhachis 2-12 mm long; petiolules 0.5-1.5 mm long; stipules small, 3.5 x 0.5 mm, linear-lanceolate. Inflorescences axillary, usually rather lax; rhachis 2-15 cm long; peduncle 1-7 cm long; pedicels 1-1.5 mm long, or up to 12 mm long; bracts minute, deciduous, 2 x 0.5 mm Calyx pubescent; tube 1-2 mm long; lobes 2-7 mm long, triangular to lanceolate, the lowest mostly the longest, the upper pair joined for from ± half their length to almost their entire length. Standard yellow, sometimes with dark red veins or flushed red, 5-10 x 3-7 mm, obovate, puberulous or pubescent, glandular; wings yellow; keel greenish-yellow. Pods 6-20(25) x 3-5 mm, oblong-falcate, glabrescent or sparsely to densely pubescent and often with longer hairs and glands, 1-2-seeded. Seeds brown, grey or blackish, often speckled, 2.5-3.2 x 2-2.5 x 1.2 mm, oblong-reniform.
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Perennial herb. Stems twining or creeping. Leaves trifoliolate; leaflets sharply acute to acuminate at apex, glabrescent or sparsely puberulous; venation mostly paler and raised on upper surface; stipules linear to narrowly ovate, up to 3 mm long. Flowers: calyx teeth triangular, as long as or scarcely longer than tube, together 3-4 mm long; corolla small, up to 6 mm long, standard 5-6 x 3 mm, yellow; Dec.-Feb. Pods up to 20 x 4-5 mm, narrowed at base, very finely puberulous and glandular or almost glabrous.