Naming
"Carduus crispus" is an introduced species in North America, and a noxious weed in several U.S. states, including West Virginia.References:
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Welted thistle
Carduus crispus
"Carduus crispus", the Welted thistle or curly plumeless thistle, is a biennial herb in the Asteraceae—daisy family. It is native to Europe and Asia. The plant is found from Southwestern Europe, through Scandinavia and Siberia, to Eastern Asia. It is also found in the disputed region of Kashmir.
