Canada thistle

noun

Definition of Canada thistle

: a European thistle (Cirsium arvense) with pinkish-purple or white flowers naturalized as a weed in North America

First Known Use of Canada thistle

1799, in the meaning defined above

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Time Traveler for Canada thistle

Time Traveler

The first known use of Canada thistle was in 1799

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Cite this Entry

“Canada thistle.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Canada%20thistle. Accessed 7 Mar. 2021.

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