• Portland State University Center for Lakes and Reservoirs

• North Carolina State University Aquatic Plant Management

• Weed Science Society of America

• Aquatic Ecosystem Restoration Foundation

• U.S. Environmental Protection Agency

• U.S. Army Corps of Engineers Research and Development Center

• Aquatics Nuisance Species Task Force

• Florida Department of Environmental Protection Water Management site

• The U.S. Department of Agriculture Plant Database

• The Aquatic Plant Management Society