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== Chinese Yam (Dioscorea polystachya) == ...(tuber) native to China that is both cultivated and gathered from the wild for its edible tubers.

...most widely distributed yam species, now cultivated throughout the tropics for its large, edible tubers. ''Dioscorea alata'' is a fast-growing, twining vine, usually grown for the purpose of its edible tubers. The tubers are usually bright lavender in