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spotted knapweed

Syllabification: spot·ted knap·weed

Definition of spotted knapweed in English:

noun

A biennial herb of European origin with pink flowers on prickly stems. It is established across most of North America and is regarded as a noxious weed nearly everywhere.
  • Centaurea biebersteinii, family Compositae
Example sentences
  • The weeds, spotted knapweed and leafy spurge, are native to Europe.
  • The spotted knapweed is a European invader that, over the last hundred years, has spread throughout the pastures and rangeland of western North America, often out-competing native species.
  • Sheep are efficient foragers and, unlike cattle, can thrive on a fair number of invasive weeds, such as leafy spurge and spotted knapweed.

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