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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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Compiled Invasive Plant List

University of Maryland. Home and Garden Information Center.
Detect: Species Watch List
Blue Accounting.
The species watch list identifies species that are likely to have a high or moderate ecological and/or socioeconomic impact if they established in or spread to new locations in the Great Lakes Basin. The watch list was compiled using several regional risk assessment sources and was developed as part of the Aquatic Invasive Species Interstate Surveillance Framework for the U.S. Waters of the Great Lakes.
Fish Dangerous to Indigenous Fish Populations - 6 CRR-NY 180.9
New York Codes, Rules, and Regulations.
Invasive Species of Concern in Maryland
Maryland Invasive Species Council.
Invasive Species Regulations: Regulated and Prohibited Invasive Species
New York Department of Environmental Conservation.
A regulation was adopted in 2014 that prohibits or regulates the possession, transport, importation, sale, purchase and introduction of select invasive species. The purpose of this regulation is to help control invasive species, a form of biological pollution, by reducing the introduction of new and spread of existing populations.
Maryland Invasive Plant List (PDF | 515 KB)

Maryland Department of Agriculture.

See also: Maryland Invasive Plants Prevention and Control for more information about the Maryland Invasive Plant Regulations
Non-Indigenous Species List Generator
DOC. NOAA. Great Lakes Environmental Research Laboratory. Great Lakes Aquatic Nonindigenous Species Information System (GLANSIS).
Noxious Weed Seeds of New York (PDF | 29 KB)
New York State Agricultural Experiment Station.
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.