Trapa natans L. (ITIS)
Water chestnut, water nut, water caltrop
Eurasia and Africa (Hummel and Kiviat 2004)
1870s (Hummel and Kiviat 2004)
Ornamental (Hummel and Kiviat 2004)
Forms dense mats that displace native species and interfere with recreational activities (Hummel and Kiviat 2004)
Distribution / Maps / Survey Status
The section below contains highly relevant resources for this species, organized by source. Or, to display all related content view all resources for Water Chestnut.
Council or Task Force
Alberta Invasive Species Council (Canada).
See also: Fact Sheets for more information about individual invasive species, including those listed as "Prohibited Noxious" and "Noxious" under the Alberta Weed Control Act
Ontario's Invading Species Awareness Program (Canada).
New York Invasive Species Clearinghouse.
Smithsonian Institution. Smithsonian Environmental Research Center. Marine Invasions Research Lab.
USDA. ARS. National Genetic Resources Program. GRIN-Global.
Ontario Ministry of Natural Resources (Canada).
Business Queensland (Australia).
State and Local Government
Pennsylvania Fish and Boat Commission.
See also: Aquatic Invasive Species for more action plans
New Hampshire Department of Environmental Services.
See also: Publications - Invasive for more resources
Rhode Island Department of Environmental Management. Office of Water Resources.
See also: Aquatic Invasive Plants for species of concern
New York Department of Environmental Conservation.
Maryland Department of Natural Resources.
Pennsylvania Department of Conservation and Natural Resources.
See also: Invasive Plant Fact Sheets for plant species (trees, shrubs, vines, herbs and aquatic plants) that have impacted the state's natural lands
Wisconsin Department of Natural Resources.
Maryland Sea Grant.
Pennsylvania State University. Pennsylvania Sea Grant.
See also: Aquatic Invasive Species: Resources for additional species information
Hummel, M., and E. Kiviat. 2004. Review of world literature on water chestnut with implications for management in North America. Journal of Aquatic Plant Management 42:17-28.
Integrated Taxonomic Information System. Trapa natans. [Accessed Sep 10, 2014].