- Cirsium lanceolatum
- nounEuropean thistle with rather large heads and prickly leaves; extensively naturalized as a weed in the United States• Syn: ↑bull thistle, ↑boar thistle, ↑spear thistle, ↑Cirsium vulgare• Hypernyms: ↑plume thistle, ↑plumed thistle
Useful english dictionary. 2012.