Definition of Canada thistle in English:

Canada thistle

Line breaks: Can¦ada this¦tle


North American
  • The European creeping or field thistle, which has become naturalized as a serious weed in North America.
    • Cirsium arvense, family Compositae
    More example sentences
    • Occasionally, broadleaf weeds, such as Canada thistle or ragweed, become established in winter wheat fields and interfere with grain harvest or with the following soybean crop.
    • Fields with quackgrass, Canada thistle, and other cool-season perennial weeds will almost always require the use of glyphosate around the time of planting.
    • As agriculture expanded onto the prairies, wild oats and sow thistle, leafy spurge and Canada thistle migrated westward.

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Word of the day milord
Pronunciation: mɪˈlɔːd
used to address an English nobleman