noun
- European thistle naturalized in United States and Canada where it is a pernicious weed.
- synonyms: creeping thistle, Cirsium arvense
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). canada thistle. Retrieved September 23, 2026, from http://smartdefine.org/canada_thistle/definitions/1237378 |
| Chicago | WordNet. 2010. "canada thistle" http://smartdefine.org/canada_thistle/definitions/1237378 (accessed September 23, 2026). |
| Harvard | WordNet 2010, canada thistle, Smart Define, viewed 23 September, 2026, <http://smartdefine.org/canada_thistle/definitions/1237378>. |
| MLA | WordNet. "canada thistle" 23 October 2010. Web. 23 September 2026. <http://smartdefine.org/canada_thistle/definitions/1237378> |