Dioscorea bulbifera is
a vine perennial found in fields and mountains, with significant
oblate tuberous roots with black coverings. Leaves are of alternate
phyllotaxis, 5-13cm in length and width, concentric-shaped, with
tips, abruptly pointed, hairless on upper and lower surfaces, and no
serrations on margins. Petioles measure 3-9.5cm long, with bulbils
at axils. Dioecious: Both male and female inflorescences hang down,
and those flowers are purple-tinged yellow-green; perianth lobes are
6, lanceolate-shaped, and .not open flat. The fruit (capsule) is
1.5-2.5cm long, 1-1.5 cm wide, oblong shape, and has three wings.
Bloom time: August-September.