Carduus nutans, or Nodding Thistle, is a biennial or perennial herb with spiny leaves and purple flower heads that droop (nod). It is native to Eurasia but has become invasive in parts of North America, competing with native vegetation.
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Aug 03, 20261 min read
Carduus nutans, or Nodding Thistle, is a biennial or perennial herb with spiny leaves and purple flower heads that droop (nod). It is native to Eurasia but has become invasive in parts of North America, competing with native vegetation.