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

DOC. NOAA. Great Lakes Environmental Research Laboratory; DOI. USGS. Wetland and Aquatic Research Center.

World Conservation Union. Invasive Species Specialist Group.

Tip of the Mitt Watershed Council (Michigan).

DOI. Fish and Wildlife Service.

See also: Ecological Risk Screening Summaries for more species summaries

Google.

Michigan.gov. Michigan Invasive Species Program.

Ontario's Invading Species Awareness Program (Canada).

University of California. Agriculture and Natural Resources. California Aquatic Invasive Species.

CAB International.

University of Wisconsin Sea Grant.