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Deschutes/Willamette Weeds

Invasive species of concern on Deschutes and Willamette NF.

creeping thistle 1
Cirsium arvense
Spear thistle 2
Cirsium vulgare

Edited by bogjohnson, marlofisher, charityblue, sacallaghan, and Jenny Lippert, some rights reserved (CC BY-SA)

Photo Credits

  • 1. (c) Dilaudid, some rights reserved (CC BY)
  • 2. (c) Sciadopitys, some rights reserved (CC BY-SA)

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