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U.S. Department of Agriculture
National Invasive Species Information Center
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Invasive Species Resources

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A Brief Guide to Kentucky's Non-Native, Invasive Species, Common Weeds, and Other Unwanted Plants (PDF | 4.7 MB)
Louisville Water Company.
Electronic Field Guide to the Invasive Plants of Nantucket
University of Massachusetts - Boston.
Invasive, Exotic Plants of the Southeast

North Carolina State University. Cooperative Extension. Going Native: Urban Landscaping for Wildlife with Native Plants.
Maine Advisory List of Invasive Plants - 2019

Maine Department of Agriculture, Conservation, and Forestry. Maine Natural Areas Program.

See also: Official 2019 Endorsement of the Advisory List of Invasive Plants (PDF | 711 KB) by the Maine Department of Agriculture, Conservation and Forestry.
Minnesota's Top 124 Terrestrial Invasive Plants and Pests
University of Minnesota. Minnesota Invasive Terrestrial Plants and Pests Center.
To determine which pests posed immediate threats, MITPPC undertook an expansive evaluation process. It convened 15 expert panelists, who ultimately identified 124 significant invasive species threatening our state. This panel also identified 17 criteria that could be used to rate species in an objective, computerized ranking system. Criteria included factors like environmental and economic impact, ability to establish and spread and proximity to the state. Rankings are updated regularly, no later than every other year or as new threats emerge on a more urgent basis. The full whitepaper, "Minnesota's Top 124 Terrestrial Invasive Plants and Pests: Priorities for Research (PDF | 1.4 MB)," outlines all prioritization methods and results
New Mexico Noxious Weed List Update (Oct 19, 2016) (PDF | 764 KB)

New Mexico Department of Agriculture.
The Director of the New Mexico Department of Agriculture has selected the following plant species to be targeted as noxious weeds for control or eradication pursuant to the Noxious Weed Management Act of 1998 (updated from 2009). This list does not include every plant species with the potential to negatively affect the state's environment or economy.
See also: Noxious Weed Information for more resources.
New Zealand Weeds

University of New Zealand. Massey University.
Nonindigenous Aquatic Species (NAS) Database - Species Lists By State
DOI. USGS. Wetland and Aquatic Research Center.
Provides fact sheets, maps and collection information for aquatic vertebrates and invertebrates occurring outside of their native range.
Noxious Weed Species
Colorado Department of Agriculture. Conservation Services Division. Noxious Weed Program.
The Quiet Invasion: A Guide to Invasive Species of the Galveston Bay Area

Texas Commission on Environmental Quality, Galveston Bay Estuary Program; Houston Advanced Research Center (HARC).
Top 50 Invasive Species in the West (Mar 2018) (PDF | 1.4 MB)

Western Governors' Association.
See also: WGA's 'Top 50 Invasive Species in the West' offers first regional report for more information