water chestnut - edible bulbous tuber of a Chinese marsh plant

groundnut, wild bean, potato bean - nutlike tuber; important food of Native Americans

Jerusalem artichoke - edible tuber of the Jerusalem artichoke

yam - edible tuber of any of several yams

sweet potato - the fleshy root of the sweet potato vine

stalk, stem - a slender or elongated structure that supports a plant or fungus or a plant part or plant organ

fungus genus - includes lichen genera

family Tuberaceae, Tuberaceae - family of fungi whose ascocarps resemble tubers and vary in size from that of an acorn to that of a large apple

earth-ball, earthnut, truffle - any of various highly prized edible subterranean fungi of the genus Tuber; grow naturally in southwestern Europe