Noun: Scotch thistle
- Biennial Eurasian white hairy thistle having pale purple flowers; naturalized in North America
"Scotch thistles dominated the abandoned field";
- cotton thistle, woolly thistle, Onopordum acanthium, Onopordon acanthium
Derived forms: Scotch thistles
Type of: thistle
Part of: genus Onopordon, genus Onopordum, Onopordon, Onopordum
Encyclopedia: Scotch thistle