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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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2 CCR 405-8: Aquatic Nuisance Species (PDF | 325 KB)
Code of Colorado Regulations.
A Brief Guide to Kentucky's Non-Native, Invasive Species, Common Weeds, and Other Unwanted Plants (PDF | 4.7 MB)
Louisville Water Company.
Aquatic Invasive Species (AIS)
Pennsylvania Fish and Boat Commission.
Scroll to view list of aquatic species banned in Pennsylvania.
California Invasive Plant Inventory
California Invasive Plant Council.
This interactive database contains information on the plants currently included in the Cal-IPC Invasive Plant Inventory. The Inventory categorizes plants as High, Moderate, or Limited, reflecting the level of each species' negative ecological impact in California. Includes options to search for species by region and by habitat type. The database provides a better view of information on each species and allows users to download the entire Inventory as a spreadsheet.
California's Invaders
California Department of Fish and Wildlife.
County Declared Noxious Weeds in Utah (Feb 2015) (PDF | 9 KB)
Utah Department of Agriculture and Food.
DCNR Invasive Plants (PDF | 471 KB)
Pennsylvania Department of Conservation and Natural Resources.
Don't Domesticate
Colorado Parks and Wildlife.
Explains state laws and regulations governing wildlife as pets, including what's legal and what's illegal to own, and why.
Encycloweedia: California Noxious Weeds
California Department of Food and Agriculture.
Invasive Species - Aquatic Plants
Idaho Department of Agriculture.
Includes Statewide EDRR List, Statewide Control List, and Statewide Containment List
Invasive Species - Terrestrial Plants
Idaho Department of Agriculture.
Includes Statewide EDRR List, Statewide Control List, and Statewide Containment List
Invasive Species List and Scorecards for California
University of California - Davis. California Invasive Species Advisory Committee.
See also: California Invasive Species List (2010; PDF | 521 KB); presented on Apr 21, 2010 by the California Invasive Species Advisory Committee (CISAC) to the Invasive Species council of California (ISCC)
Kentucky Invasive Exotic Plant List
Kentucky Exotic Pest Plant Council.
Kentucky Noxious Weed Seeds
University of Kentucky. College of Agriculture. Division of Regulatory Services.
Noxious Weed Control List - Title 7, Chapter 110

Pennsylvania Code.
Noxious Weed Species
Colorado Department of Agriculture. Conservation Services Division. Noxious Weed Program.
Noxious, Invasive and Poisonous Plant Program
Pennsylvania Department of Agriculture.
The Pennsylvania Department of Agriculture administers the Noxious Weed Control Law and Noxious Weed Control List and implements federal and state eradication and control programs when a noxious weed of limited distribution in the commonwealth is targeted by federal or state funding for suppression, control or eradication.
NRCS Utah Invasive Species List (Feb 2011) (PDF | 102 KB)
USDA. Natural Resources Conservation Service.
Pest Tracker - Exotic Pest Detection By State
USDA. APHIS. Cooperative Agricultural Pest Survey (CAPS). National Agricultural Pest Information System (NAPIS).
Provides State pest detection contacts, recent state exotic pest news, links to state pest resources, and a list of state CAPS survey targets.
Plants and Animals of Rock Creek Park - Non-Native Invasive Plants
DOI. National Park Service; NatureServe. Explore Natural Communities.