1. Edible tuber of the Jerusalem artichoke.
2. Sunflower tuber eaten raw or boiled or sliced thin and fried as Saratoga chips; Also called: sunchoke.
3. Tall perennial with hairy stems and leaves; widely cultivated for its large irregular edible tubers; Also called: girasol, Jerusalem artichoke sunflower, Helianthus tuberosus.
A variety of artichoke.