- Contact information
- DNR invasive species staff
Wetland Invasive species
Reed canary grass is an invasive species that dominates almost half a million acres of Wisconsin’s wetlands.
Invasive species may be the greatest threat to the long-term health and sustainability of Wisconsin's wetlands. Human activities such as urban development, farming, recreation and gardening have resulted in the introduction of many non-native plant and animal species to the state. In some cases those species end up competing with native species and can take over large areas of land. For instance, reed canary grass dominates almost half a million of Wisconsin wetland acres.
Learn about wetland invasives
- Explore individual species in the chart below
- View or print a handout of 16 common and 16 early detection wetland invasive species
- Learn more on our Prevention, Control, and Contacts pages
- Read Wisconsin’s Wetland Invasive Plant Strategy
Click on the buttons below to see what species are invasive in Wisconsin.
The buttons separate invasive plants and animals into regulated or non-regulated categories. Regulated species currently have legal restrictions under the Invasive Species Rule, Chapter NR 40. Non-regulated species currently are not regulated by Chapter NR 40. View our terminology page for classification definitions.