牛蒡
Burdock \Bur"dock\, n. [Bur + dock the plant.] (Bot.) A genus of coarse biennial herbs ({Lappa}), bearing small burs which adhere tenaciously to clothes, or to the fur or wool of animals. Note: The common burdock is the {Lappa officinalis}.
burdock n : any of several erect biennial herbs of temperate Eurasia having stout taproots and producing burs [syn: {clotbur}]