Invasive Species
Some Invasive species like zebra mussels can hitch a ride on your boat from waterway to waterway. Take time to clean your boat before going to another waterway.
Purple Loosestrife
- Perennial herb with a woody, square stem covered in downy hair
- Height varies from 4-10 feet
- Leaves are arranged in pairs or whorls
- Magenta flower spikes with 5-7 petals per flower are present for most of the summer
Learn more about Purple Loosestrife
Michigan Sea Grant
Eurasian Watermilfoil (Myriophyllum Spicatum)
- Submergent aquatic perennial
- Commonly ranges from 1-3 meters (3-10 feet) in length but may reach 4 meters (33 feet)
- Forms dense mats
Additional Resources