Dioscorea vilis Kunth

Tuber apparently burying itself deep, edible, slender, attaining 25 cm and more. Plant glabrous. Stem 3-4 mm in diameter at the base and with a few small prickles there, unarmed above, terete or very obscurely ridged, climbing to 16 m (KOORDERS). Bulbils none seen. Leaves alternate, herbaceous, broadly lanceolate to narrowly ovate, 10 by 4 cm, acuminate, 7-nerved; upper surface with the larger nerves prominent; petiole to 4 cm or to ¼ or ⅓ of the lamina. Male flowering axes all in fascicles in leaf-axils, 1-3 together, assuming an upright position in response to gravity, to 7 cm long with about 50 flowers; axis strongly ridged and minutely scabrid. Buds globose except that the base is flattened. Female flowers unknown. Capsules rather large, apex retuse, base almost retuse about the stipe; wings more or less evenly rounded, 18-20 by 20 mm; stipe 7-8 mm long.

In the mountains, 650-2400 m, apparently rare, also in Casuarina forest.