Rhynchosia malacophylla (Spreng.) Bojer , it is a climbing plant, 0·3-3 m long, from a probably woody rootstock. Stems woody at the base, ridged, glabrous or pubescent, wide, puberulous. Leaflets 3, ovate, rhomboid or rounded, the laterals oblique, 0·6–4·6 (–6·5) cm long, 0·6–5·5 cm wide, rounded to mostly acuminate at the apex, cuneate, rounded or truncate at the base, glabrous to finely puberulous on both surfaces, the margins often densely silky, densely gland-dotted beneath. Inflorescences axillary, lax or rather dense, rhachis 4-16 cm long, peduncle 1·5–7 cm long, pedicels 1.5–2.5 mm long, bracts sub persistent, lanceolate, 1·5-2 mm long, 0·5 mm. wide. Calyx puberulous and gland-dotted, tube 1.5-3 mm long, lobes triangular, 2-5 mm long, the lowest the longest, the upper pair joined for ± three-quarters of their length. Petiole 0·7-6·5 cm long, rhachis 0·2-1·2 cm. long, petiolules 1-2·5 mm long, stipules lanceolate, 4-5 mm. long, 1 mm. Standard mostly clear yellow in the Flora area but sometimes with crimson veins, obovate or almost round, 0·8–1·4 cm. long, 5-9·5 mm. wide, puberulous and glandular. Pods oblong-falcate, (1-2-) 1·5-2 cm long, 4·5-5·5 mm wide, narrowed at the base, finely to densely puberulous and glandular. Seeds rounded-reniform, greyish with dark and light mottling, slightly keeled, longest dimension 4·5 mm., shorter dimension 3 mm., 2 mm. thick.
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