herb of the Pacific islands grown throughout the tropics for its edible root and in temperate areas as an ornamental for its large glossy leaves
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tropical starchy tuberous root
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Taro \Ta"ro\, n. [From the Polynesian name.] (Bot.) A name for several aroid plants ({Colocasia antiquorum}, var. {esculenta}, {Colocasia macrorhiza}, etc.), and their rootstocks. They have large ovate-sagittate leaves and large fleshy tuberous rootstocks, which are cooked and used for food in tropical countries.
Colocasia \Colocasia\ n. a small genus of perennial tuberous herbs of the arum family, of tropical Asia and the Pacific islands, including the {taro} ({Colocasia esculente}).