University of Georgia. Center for Invasive Species and Ecosystem Health.Provides state, county, point and GIS data. Maps can be downloaded and shared.
DOI. USGS. Wetland and Aquatic Research Center.Provides detailed collection information as well as animated map.
The section below contains selected highly relevant resources for this species, organized by source. To view all related content for this species, click on "View all resources for species" in the top left of this page.
Council or Task Force
Washington State Recreation and Conservation Office. Washington Invasive Species Council.
New York Invasive Species Clearinghouse.
Ontario Ministry of Natural Resources (Canada).
State and Local Government
Indiana Department of Natural Resources.
Wisconsin Department of Natural Resources.
Maryland Sea Grant.
- Fofonoff, P.W., G.M. Ruiz, B. Steves, A.H. Hines, and J.T. Carlton. 2003. Trapa natans. In: National Exotic Marine and Estuarine Species Information System: Chesapeake Bay Introduced Species Database. [Accessed Sep 16, 2014].
- Integrated Taxonomic Information System. Trapa natans. [Accessed Sep 10, 2014].