Helianthus strumosus

About

The Jerusalem artichoke (Helianthus tuberosus), also called sunroot, sunchoke, earth apple, or topinambour, is a species of sunflower native to eastern North America, and found from eastern Canada and Maine west to North Dakota, and south to northern Florida and Texas. It is also cultivated widely across the temperate zone for its tuber, which is used as a root vegetable.