In the 2012 President's Budget Request, the National Biological Information Infrastructure (NBII) is terminated. As a result, all resources, databases, tools, and applications within this web site will be removed on January 15, 2012. For more information, please refer to the NBII Program Termination page.
This page lists online tools available for help in identifying different species of aquatic plants. Search the list below for interactive keys, fact sheets, image galleries and other useful tools.
The NBII Program is administered by the Biological Informatics Program of the U.S. Geological Survey