cotton thistle

Noun cotton thistle has 1 sense

• cotton thistle(n = noun.plant) onopordon acanthium, onopordum acanthium, scotch thistle, woolly thistle - biennial Eurasian white hairy thistle having pale purple flowers; naturalized in North America;
is a kind of thistle
is a member of genus onopordon, genus onopordum, onopordon, onopordum