1. Biennial Eurasian white hairy thistle having pale purple flowers; naturalized in North America
   - cotton thistle, Scotch thistle, Onopordum acanthium, Onopordon acanthium 
2. Thistle of western North America having white woolly leaves
   - Cirsium flodmanii

Derived forms: woolly thistles

Type of: plume thistle, plumed thistle, thistle

Part of: genus Onopordon, genus Onopordum, Onopordon, Onopordum

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