Canada thistle (Cirsium arvense)

canada_infest_King co

Description

https://www.oregon.gov/oda/programs/weeds/oregonnoxiousweeds/pages/aboutoregonweeds.aspx#canada-thistle

Photo credit: invasivespeciesinfo.gov

Photo gallery

How to recognize

https://www.oregon.gov/oda/programs/weeds/oregonnoxiousweeds/pages/aboutoregonweeds.aspx#canada-thistle

What to do if you find it

No need to report. For tips on managing this species, contact your local watershed council or Soil and Water Conservation District.

Additional Information

All Flower Colors
  • All Flower Colors
  • Orange & Yellow
  • Pink & Purple
  • White & Green
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Canada thistle (Cirsium arvense)

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