- burdock, clotbur - any of several erect biennial herbs of temperate Eurasia having stout taproots and producing burs
--1 is a kind of subshrub, suffrutex
--1 is a member of Arctium, genus Arctium
--1 has particulars:common burdock, lesser burdock, Arctium minus; great burdock, greater burdock, cocklebur, Arctium lappa