Water Chestnut (Trapa natans) is an aquatic plant that is found in slow moving nutrient filled waters such as ponds, lakes, and shallow streams.
The plant's size, although characteristically small, may have branching stems reaching lengths of 16 feet. Leaves from this plant are both surfaced and submerged. Surface leaves are triangular in shape with long petioles which have an inflated spongy region (air bladder), while the submerged leaves are opposite and contain numerous adventitious roots.
Water chestnuts begin to flower in mid to late July, with their nuts ripening approximately one month later. Flowering and seed production continue into the fall when frost kills the floating rosettes. The mature nuts sink to the bottom when dropped and may be able to produce new plants for up to 12 years. The plant spreads either by the rosettes detaching from their stems and floating to another area, or more often by the nuts being swept by currents or waves to other parts of the lake or river. The plant overwinters entirely by seed.
Water Chestnut is an extremely high competitor in slow moving shallow water, with semi-permeable mud bottoms.
Once established, this plant will spread rapidly and control large surface areas, leaving no room for native aquatic plants. Rapid sedimentation may occur in water chestnut areas due to trapping of silt. The reduction of light penetration, and the resulting loss of oxygen, proves a hazard to fish and other aquatic species. In addition, impacts on recreation may be seen in areas where the plant is dominate, due to its reduction in available fishing area and its hazard to boating motors. Infestations can make boating, fishing and swimming difficult or impossible. The expense of controlling this plant is large, with numbers reaching well into the millions of dollars for both states and federal agencies.
Vermont Agency of Natural Resources, Department of Environmental Conservation, http://www.anr.state.vt.us/dec/waterq/ans/wcpage.htm
Water Chestnut: Environmental Fact Sheet, New Hampshire Department of Environmental Service, http://www.des.state.nh.us/factsheets/bb/bb-43.htm
Water Chestnut: NY-Invasive Plant Council of New York State, http://www.ipcnys.org/ipc_twentytn.html
invasive.org: Center for Invasive Species and Ecosystem Health
The University of Georgia
Warnell School of Forestry and Natural Resources
College of Agricultural and Environmental Sciences - Dept. of Entomology
The National Invasive Species Information Center NISIC http://www.invasivespeciesinfo.gov/aquatics/waterchestnut.shtml
News & Events 8/16/2017
Thank You, Danny's!
Thank you to Danny's Village Inn for donating a $250 Danny's gift certificate as part of our Basketball Court fund-raising raffle. All Raffle drawings and Silent Auctions will be held at the End of Season Gathering, Saturday, 26 August. Get the full scoop here!
Help! Basketball Court Fund-Raiser!
Join us in a grass-roots effort to raise money to renovate our Basketball Court! As part of the End of Season Gathering on 26 August, we will Rafflie many high value prizes, as well as holding bidding Auctions for additional items. Raffle tickets can be bought in advance, and you don’t need to be present to win. Click here to browse Raffle entries. Auction bidding will all be in person at the event. Browse Auction items by clicking here. If you have items to add, or questions about the fund-raiser, contact Madeline Boyd. To see an overview of the fund-raiser and to see a sketch of the planned new Basketball Court, click here.Read More Read ALL