Chinese Yam Dioscorea polystachya 1 plant in pot

Dioscorea polystachya or Chinese yam, also called cinnamon-vine, is a species of flowering plant in the yam family. It is sometimes called Chinese potato or by its Japanese name nagaimo. A hardy perennial herbaceous plant native to China and East Asia , this vine produces edible tubers that can be cooked like potatoes. Its voluble stems climb up to 2 or 3 meters, they carry pretty heart shaped leaves strongly ribbed, shiny, decorative. The Chinese yam is enjoyed in the half-shade, in the deep, fresh and rich soil of the vegetable garden, and appreciates the hot summers. It is a good plant for permaculture, to install in an edible forest.