Noxious weeds are non-native plant species that are a concern to South Dakota land owners and managers. They can seriously impact the native plant community by altering or affecting agriculture, recreation, and wildlife.
SDSU Cooperative Extension Service, U.S. Department of Agriculture
Canada thistle, Purple loosestrife, Absinth Wormwood (wormwood sage), Leafy Spurge, biocontrol of noxious weeds
Moechnig, Mike; Wrage, Leon J.; and Deneke, Darrell L., "Noxious Weed Control: 2011" (2011). SDSU Extension Fact Sheets. 170.