Canada thistle


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

Origin of Canada thistle

1
An Americanism dating back to 1790–1800

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use Canada thistle in a sentence

  • Little bits of Canada-thistle root half an inch long may send forth buds, and each bud grow to be an independent plant.

    Seed Dispersal | William J. Beal

British Dictionary definitions for Canada thistle

Canada thistle

noun
  1. 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