Family, Composite. Color, yellow, sometimes purple. This is a very spiny and prickly species. Leaves, stem, and the involucre around the heads of flowers are all alike armed with vicious tiny spears which protect it from cattle and insure its continuation upon lands where it is not especially desired. 1 to 3 feet high. June to August.
Found in all the Atlantic States as far south as Virginia, in sandy soil.