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Home / Aquatic Invasives / Aquatic Plants / Curly Pondweed

Curly Pondweed

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Curly pondweed
Curly pondweed, foliage - Photo by Chris Evans; University of Illinois
Scientific Name: 
Potamogeton crispus L. (ITIS)
Common Name: 
Curly pondweed, Curly-leaf pondweed
Native To: 
Eurasia, Africa, Australia (Catling and Dobson 1985)
Date of U.S. Introduction: 
Means of Introduction: 
Unknown, possibly introduced accidentally with fish stocking operations (Catling and Dobson 1985; Nichols and Shaw 1986)
Forms dense mats that inhibit growth of native species and impede recreational activities (Catling and Dobson 1985)

Distribution / Maps / Survey Status

University of Georgia. Center for Invasive Species and Ecosystem Health.
DOI. USGS. Wetland and Aquatic Research Center.
Provides detailed collection information as well as animated map.


University of Georgia. Center for Invasive Species and Ecosystem Health.


Google. YouTube; Montana Weed Control Association.

Selected Resources

The section below contains highly relevant resources for this species, organized by source. Or, to display all related content view all resources for Curly Pondweed.

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

Ohio Invasive Plants Council.
See also: Invasive Plants of Ohio for worst invasive plant species identified in Ohio's natural areas
IUCN. Species Survival Commission. Invasive Species Specialist Group.
University of Georgia. Center for Invasive Species and Ecosystem Health.
USDA. FS. Institute of Pacific Islands Forestry.
Michigan State University. Midwest Invasive Species Information Network.
Federal Government

Smithsonian Institution. Smithsonian Environmental Research Center. Marine Invasions Research Lab.

DOI. USGS. Wetland and Aquatic Research Center.
Provides distribution maps and collection information (State and County).
USDA. NRCS. National Plant Data Center.

USDA. ARS. National Genetic Resources Program. GRIN-Global.

State and Local Government

Rhode Island Department of Environmental Management. Office of Water Resources.

See also: Aquatic Invasive Plants for species of concern

Wisconsin Department of Natural Resources.

Minnesota Department of Natural Resources. Exotic Species Program.

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

Whatcom County Noxious Weed Control Board (Washington).

See also: Noxious Weed Fact Sheets for more species
University of Wisconsin. Extension Lakes Program. Citizen Lake Monitoring Network.

Mississippi State University. Geosystems Research Institute.

See also: Species Factsheets for more fact sheets

University of Minnesota. Minnesota Aquatic Invasive Species Research Center.

Texas A&M University. AgriLife Extension Service. Department of Wildlife and Fisheries Sciences.
Pennsylvania State University. Cooperative Extension.
Pennsylvania State University. Pennsylvania Sea Grant.
See also: Aquatic Invasive Species: Resources for additional species information

University of Wisconsin Sea Grant.


Lake George Association (New York).

Lake Stewards of Maine.
Special Note: Formerly known as the Maine Volunteer Lake Monitoring Program.