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Canada thistle

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noun
an Old World plant, Cirsium arvense, having small purple or white flower heads, now a troublesome weed in North America.
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Origin of Canada thistle

An Americanism dating back to 1790–1800
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

How to use Canada thistle in a sentence

British Dictionary definitions for Canada thistle

Canada thistle

noun
the US and Canadian name for creeping thistle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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