Virginia Tech researchers who helped identify the dangerous Giant Hogweed plants in Clarke County, Virginia, want residents to stay on the lookout for the plant with toxic sap that can cause severe burns — but also stressed that the weeds are believed to have been planted intentionally decades ago and haven’t spread in the years since. Anyone who suspects they have found Giant Hogweed should take photos, check online to compare the plant to giant hogweed photos, and then contact a Virginia Cooperative Extension agent.
University of Georgia. Center for Invasive Species and Ecosystem Health.Provides state, county, point and GIS data. Maps can be downloaded and shared.
USDA. APHIS. Cooperative Agricultural Pest Survey. National Agricultural Pest Information System.
USDA. APHIS. Plant Protection and Quarantine.
Includes species listed as a Federal Noxious Weed under the Plant Protection Act, which makes it illegal in the U.S. to import or transport between States without a permit.
The section below contains highly relevant resources for this species, organized by source. Or, to display all related content view all resources for Giant Hogweed.
Council or Task Force
USDA. APHIS. PPQ. Center for Plant Health Science and Technology; California Department of Food and Agriculture.
New York Invasive Species Clearinghouse.
Ontario Ministry of Natural Resources (Canada).
State and Local Government
Oregon Department of Agriculture.
Wisconsin Department of Natural Resources.