Pseudovigna argentea (Willd.) Verdc.

Stems several m. long, ridged, densely covered with long ferruginous bristly hairs and shorter hairs as well.. Leaflets paler beneath, rhomboid, 2·5–9·5 cm. long, 2·5–10·3 cm. wide, undivided to ± 2–3-lobed, the upper margins often repand-dentate or irregularly toothed, rounded to a shortly acuminate apex, broadly cuneate or rounded at the base, rather sparsely adpressed pilose and puberulous above, densely greyish-silvery silky pilose beneath; petiole 2·3–17·5 cm. long; rhachis 0·8–2·6 cm. long; petiolules 3–4 mm. long; stipules ovate-lanceolate, 5·5–6·5 mm. long, rib-veined.. Inflorescences 2–8-flowered, covered with dense blackish-brown bristles; rhachis 1–4 cm. long; peduncle 1–4 cm. long; pedicels 4–7 mm. long; bracts ovate-lanceolate, 4 mm. long, rib-veined; bracteoles linear-lanceolate, boat-shaped, 4 mm. long, keeled, ribbed.. Calyx covered with dense blackish-brown bristles; tube 3·5–4 mm. long; lobes narrowly lanceolate, 5–10 mm. long.. Standard white or pink, 1·3–1·5 cm. long, 1·1–1·4 cm. wide; keel white or pink, tinged blue.. Pods 1·5–3·1 cm. long, 7–9 mm. wide, densely covered with long blackish-brown bristles.. Seeds black, longest dimension 5·5–6·5 mm., shorter dimension 3·5–4 mm., 2–2·5 mm. thick, with a reticulate layer over the testa.. Fig. 88, p. 597.