Center for Aquatic and Invasive Plants
University of Florida
Gainesville, FL
http://aquat1.ifas.ufl.edu/
National Biological Survey
Nonindigenous Aquatic Species
http://www.nfrcg.gov/nas/nas.htm
North American Lake Management Society
http://www.nalms.org/
US Army Engineer Waterways Experiment Station
Vicksburg, MS
http://www.wes.army.mil/
U.S. Department of Agriculture
http://plants.usda.gov
USDA Aquatic Weed Laboratory
Davis, CA
http://veghome.ucdavis.edu/aquaticweed/aquatic.htm
Washington State Department of Ecology
Aquatic Plant Management Program
http://www.wa.gov/ecology/wq/plants/aquahome.html
