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. Fruit (capsule) is 1.5-2.5cm
long, 1-1.5 cm wide, in an oblong shape, with three wings.