Contact information
For information on Lakes in Wisconsin, contact:
Division of Water
Bureau of Water Quality
Aquatic Invasive Species Contacts

Brazilian Waterweed - Fenlon Pond

No Longer Observed
Date First Found

Brazilian Waterweed

About Brazilian Waterweed

Brazilian waterweed is a submersed, perennial, freshwater herb. It grows from erect, cylindrical stems until it reaches the surface of the water, where it then forms dense mats. While very pervasive in neighboring states, Brazilian waterweed is not yet very prominent in Wisconsin. It was introduced worldwide through the aquarium trade.