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nounany of several herbs of the genus Dipsacus native to the Old World having flower heads surrounded by spiny bractstype of:
Definition that contains teasel
- dipsacus fullonum teasel with lilac flowers native to Old World but naturalized in North America; dried flower heads used to raise a nap on woolen cloth
- common teasel teasel with lilac flowers native to Old World but naturalized in North America; dried flower heads used to raise a nap on woolen cloth