Onopordum acanthium

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Noun

1.

Onopordum acanthium - biennial Eurasian white hairy thistle having pale purple flowers; naturalized in North Americacotton thistle, Onopordon acanthium, Scotch thistle, woolly thistlethistle - any of numerous plants of the family Compositae and especially of the genera Carduus and Cirsium and Onopordum having prickly-edged leavesgenus Onopordon, genus Onopordum, Onopordon, Onopordum - a genus of Eurasian herbs of the family Compositae with prickly foliage and large purplish flowers