Any coarse weed of the genus Xanthium having spiny burrs.

synonyms: cockle-bur, cockle-burr, cockleburr.

Polish: rzepień

Burdock having heart-shaped leaves found in open woodland, hedgerows and rough grassland of Europe (except extreme N) and Asia Minor; sometimes cultivated for medicinal and culinary use.

synonyms: Arctium lappa, great burdock, greater burdock.

Polish: łopian większy