{i} any coarse weed or plant with prickly seed husks; burdock, plant with a prickly clinging seedpod
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
A coarse, composite weed, having a rough or prickly fruit; one of several species of the genus Xanthium; called also clotbur