MSU Extension Invasive Species

Identifying aquatic plants can be difficult, especially when they are being purchased from a wholesaler or local retailer. This brochure highlights some of Michigan’s regulated aquatic plants that are prohibited or restricted from sale due to their invasive potential. As well as three species that are found on Michigan’s invasive species watchlist. 

Invasive plants have moved into Michigan waters from around the globe. They clog waterways, disrupt aquatic ecosystems, and limit habitat for our beneficial native species. It is extremely costly to eradicate invasive species from Michigan’s lakes and rivers once they are introduced. One way these invaders enter waterways is through the release of unwanted aquariums and water gardens. While releasing unwanted plants into a lake or stream may seem harmless, the consequences can be devastating. Some plants can thrive and out-compete our beneficial native species for food and space. While some tropical animals and plants cannot survive Michigan’s climate, aquarium and water garden species can introduce harmful diseases that affect native wildlife.

Never release unwanted aquarium or water garden plants or animals into a natural waterway. Check out the Reduce Invasive Pet and Plant Escapes (RIPPLE) website to learn more and to order printed copies of this brochure.