• Guides
  • Utah State Noxious Weed Guide

Utah State Noxious Weed Guide

This list of 54 noxious weeds is adapted from the State Weed Committee.

The plant species on this list are not native to Utah, are highly invasive, and are able to spread like wildfire throughout our ecosystems. Outside of their native origins, noxious weeds become oppressors with no ...more ↓

creeping thistle 1
Cirsium arvense
bearded creeper 2
Crupina vulgaris
diffuse knapweed 3
Centaurea diffusa
musk thistle 4
Carduus nutans
Broad-winged Thistle 5
Carduus acanthoides
purple star-thistle 6
Centaurea calcitrapa
Russian knapweed 7
Leuzea repens
cotton thistle 8
Onopordum acanthium
spotted knapweed 9
Centaurea stoebe
Centaurea virgata 10
Maltese star-thistle 11
Centaurea melitensis
Yellow Starthistle 12
Centaurea solstitialis

Edited by kmosbruger, some rights reserved (CC BY-SA)

Photo Credits

  • 1. (c) Danny S., some rights reserved (CC BY-SA)
  • 2. (c) jacinta lluch valero, some rights reserved (CC BY-SA)
  • 3. (c) Franz Xaver, some rights reserved (CC BY-SA)
  • 4. (c) Izabella Farr, some rights reserved (CC BY-NC), uploaded by Izabella Farr
  • 5. (c) Superior National Forest, some rights reserved (CC BY)
  • 6. (c) Gena Bentall, some rights reserved (CC BY-NC), uploaded by Gena Bentall
  • 7. (c) Stan Shebs, some rights reserved (CC BY-SA)
  • 8. (c) Alwyn Ladell, some rights reserved (CC BY-NC-ND)
  • 9. (c) Kutushev Radik, some rights reserved (CC BY-NC), uploaded by Kutushev Radik
  • 10. (c) mallaliev, some rights reserved (CC BY-NC), uploaded by mallaliev
  • 11. (c) James Bailey, some rights reserved (CC BY-NC), uploaded by James Bailey
  • 12. (c) Bill Bumgarner, some rights reserved (CC BY-NC-ND)

Member of the iNaturalist Network   |   Powered by iNaturalist open source software |   Documentation for developers