Leslie J. Mehrhoff, University of Connecticut, Bugwood.org

Water-chestnut

Trapa natans

Water-chestnut (Trapa natans) is an invasive plant of fresh water. It is a native of Europe and was first detected in Massachusetts in 1870s.

Preferring shallow water, this invasive will form dense mats of vegetation blocking sunlight and decreasing oxygen levels which critically alters the water's ecosystem.

Aquarium and Pond Plants of the World, Edition 2.1

9/2019 - Friends of Whalebone Cove Finish Project to Clear Invasive Water Chestnut from Selden Cove
8/2019 - Be On The Lookout For Water Chestnut In RI Lakes, Ponds
8/2019 - Invasive Water Chestnut Plant Choking The Life Out Of Once-Thriving Westchester County Lake
7/2019 - Earth Matters: Rockland Lake Chestnut Rescue
7/2019 - Eco Talk: Why water chestnut must be pulled from Cayuga Lake
6/2019 - Alarm sounded! Hood Pond under threat from obnoxious plants
6/2019 - Middletown's Jonah Center invites volunteers to paddle with a purpose
6/2019 - Jonah Center to host two "Paddle with a Purpose" events to clear invasive species from the Floating Meadows
10/2018 - Invasive and dangerous water chestnuts found in Mercer County
8/2018 - Invasive water chestnut clogs local waterways