Found 2 items, similar to clotbur.
English → English (WordNet) Definition: clotbur clotbur n : any of several erect biennial herbs of temperate Eurasia having stout taproots and producing burs [syn: burdock]
English → English (gcide) Definition: clotbur Cocklebur \Coc"kle*bur`\, n. (Bot.) A coarse, composite weed, having a rough or prickly fruit; one of several species of the genus Xanthium; -- called also clotbur. [1913 Webster]