Dioscorea(redirected from Dioscorea species)
Also found in: Dictionary, Thesaurus, Encyclopedia.
Related to Dioscorea species: Dioscorea alata
A genus of yams, a potato-like root vegetable used in many cultures as a source of dietary carbohydrates. There are approx. 150 species. Dioscorea villosa, the wild yam, is used as a source of topically applied cosmetics and plant-derived steroids.
a plant genus with edible roots in the family Dioscoreaceae. Some species are poisonous due to their content of dioscorine, an alkaloid with an action like picrotoxin. Called also yams. See also tamus communis.