Dioscorea oryzetorum Prain & Burkill

Tubers several as globose endings on long stalks differing from those of D. glabra in these stalks which are sometimes branched; flesh white. Plant glabrous. Stems unarmed, smooth. Leaves opposite, varying much its shape, elliptic-cordate to ovate-lanceolate or even linear-lanceolate with a rounded base [var. angustifolia PRAIN & BURK. Kew Bull. 1927 1 , acuminate, 10 by 2-6 cm, 5-7-nerved, upper surface with the network obscure; petioles of the broader leaves about ¾ the length of the lamina, but petioles of the narrower leaves short to very short. Male flowering axes usually on leafless branches, but if not then 1-3 together in leaf-axils, the leafless branches to 12 cm in length; flowering axes very thin, to 4 cm in length with flowers to the number of 50. Buds ellipsoid, directed slightly forward, to 1 mm long. Outer tepals 1 mm long. Inner tepals a little shorter, oblanceolate or sub-spathulate. Stamens with very short filaments. Female flowering, axes solitary, to 20 cm long, angled, rather slender. Capsules relatively small, sub glaucous in a degree similar to that of D. glabra; apex very slightly retuse; base nearly truncate; wings to 14 by 11 mm; stipe 4-5 mm long.

A tropical plant. It grows in open paddy fields and plains.

The tubers can be eaten cooked.