Compilation
Mucuna quadrialata

Large woody liane attaining 8–15 m in length. Stems at first covered with stiff orange-brown hairs, later glabrescent. Leaflets 4.2–11.5 × 2.2–7.5 cm, elliptic or ovate, the laterals oblique, acuminate and markedly apiculate at the apex, rounded at the base, glabrous; petiole 4.7–12 cm long; rhachis 1.8–3.5 cm long; petiolules 5 mm long. Inflorescences mostly from the thick lower stems; rhachis 3–6 cm long; peduncle 4–22 cm long; secondary branches 2–7 mm long, silvery pubescent; pedicels 1–2.5 cm long; bracts 7 × 2.5 mm, oblong; bracteoles 14 × 4 mm, oblong, deciduous. Calyx covered with fine grey pubescence and also long deciduous orange-brown bristles; tube 7–11 mm long; lobes 2–3 mm long, the upper lip scarcely emarginate. Standard pale creamy-green, white or pale lilac, eventually turning black, (2)2.5–3.5 × (1.6)2.2–2.6 cm, round, with very sparse orange bristly hairs, particularly outside at top of claw; wings and keel similarly coloured, (3)3.7–4.6 cm long. Pods stipitate, 8–15.3 × 3.5–5(6.4) × 1–1.9 cm, oblong or oblong-elliptic, margins with 2 wings, densely covered with stiff intensely irritant orange-brown bristles. Seeds brown, densely mottled with black, 2.5–2.9 × 2.1–2.5 × 1.2–1.4 cm, discoid, the faces convex, smooth; hilum extending around the seed-margin for ± three-quarters of the circumference.