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

Provides state, county, point and GIS data. Maps can be downloaded and shared.

New Hampshire Department of Agriculture, Markets, and Food. Division of Plant Industry.

See also: New Hampshire's Prohibited Invasive Plant Fact Sheets for additional invasive trees, shrubs, vines, and herbaceous plants

USDA. FS. Rocky Mountain Research Station. Fire Sciences Laboratory.

Maryland Department of Natural Resources. Forest Service.

See also: Invasive Plants and Insects Fact Sheets for additional species to help control invasive species in Maryland

IUCN. Species Survival Commission. Invasive Species Specialist Group.

Google.

Pennsylvania State University. Cooperative Extension.

Columbia University. Center for Environmental Research and Conservation.

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

University of Pennsylvania. The Pennsylvania Flora Project of Morris Arboretum.

See also: Invasive Plant Fact Sheets for additional invasive plants in Pennsylvania

Indiana Department of Natural Resources. Invasive Plant Species Assessment Working Group.

See also: Species Assessments and Invasive Species for exotic animal and plant pests invading Indiana, causing economic and visual damage

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

Ohio Invasive Plants Council.

See also: Invasive Plants of Ohio for worst invasive plant species identified in Ohio's natural areas

Michigan Department of Natural Resource; Michigan State University Extension. Michigan Natural Features Inventory.

See also: Best Control Practice Guides for more guides

CAB International.

North Carolina Department of Agriculture and Consumer Services. Forest Service.

See also: Forest Health Publications for more Invasive Species Leaflets

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

University of Minnesota Extension.

Forest pest first detectors are trained to quickly detect and diagnose early infestations of emerald ash borer, spongy moth, Asian longhorned beetle, Japanese barberry, Oriental bittersweet and other pests, so that state and federal agencies can control the spread. Become part of the award-winning Minnesota Forest Pest First Detector volunteer program to help the public find new invasive species affecting Minnesota’s trees and forests, or attend as a refresher for those already active as Forest Pest First Detectors.

Wisconsin Department of Natural Resources.

USDA. NRCS. National Plant Data Center.