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Definition of Hardheads
1. Noun. A weedy perennial with tough wiry stems and purple flowers; native to Europe but widely naturalized. 
Definition of Hardheads
1. hardhead [n] - See also: hardhead
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1. Noun. A weedy perennial with tough wiry stems and purple flowers; native to Europe but widely naturalized. 
1. hardhead [n] - See also: hardhead