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(not the same as other plants called “groundnut”) A vine with edible beans and tuberous roots. red/brown/purple flowers. One of the most popular edible plant foods of North American indians. Very high in starch and protein (3x more than potatoes). Very popular steamed, roasted, boiled etc. Sometimes there are entire strings of potato-like bulges growing along a root or stem, like a beaded necklace.