The water chestnut is a rooted, floating aquatic plant. It is an annual plant not native to the United States, categorized as an invasive species in the Connecticut River Watershed. It is fast growing and quickly reproducing. If left unattended it will easily cover an entire waterbody.
Water chestnut infestations have been found in each of the four states – CT, MA, NH, VT, that the CT River travels through. To learn more about the origins of water chestnut and removal efforts in the CT River, visit our What is Water Chestnut page!
Cyanobacteria can produce toxins harmful to humans, pets and livestock. If you see, or you suspect you see cyanobacteria, leave the site immediately and let us know via water reporter. Staff and volunteer safety is a priority.