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a thick, fleshy-leaved South American plant, Xanthosoma atrovirens, of the arum family, having leaves up to 3 feet (90 centimeters) long and nearly 2 feet (60 centimeters) wide.

a stemless plant, Xanthosoma sagittifolium, of the arum family, cultivated in tropical America for its tuberous, starchy root, cooked and eaten like potatoes.