mcpeaks
BLM
U.S. DEPARTMENT OF THE INTERIOR
BUREAU OF LAND MANAGEMENT
Spotted knapweed. Salt cedar. Leafy spurge. Musk thistle. Dalmation toadflax.
Wyoming
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Spotted Knapweed

 

Spotted Knapweed closeup

  • Grow extremely fast in the spring - snatching up much of the available nutrients and water
  • Creates thick infestations - reduces native vegetation by 90%
  • Plants release it own herbicide that inhibits the growth of surrounding vegetation
  • Poisonous to horses - causes chewing disease that had no cure
  • Large infestations significantly increase soil erosion

Spotted Knapweed

Spotted Knapweed

Spotted Knapweed closeup