This yam is poisonous unless prepared properly. The yam vine is common in monsoon forest and open forests in the north and favours sandy loamy soil. It appears after the wet season, during the months of Feb, Mar, Apr, and May. The vine with its large heart shaped leaves, climbs and scrambles over other trees and low bushes. Like other Dioscorea species, the heart shaped leaves have the veins of the leaf all starting from the one point at the stem of the leaf. The vine has tiny flowers. The underground yam can be found about 15 cm under the . . .