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Displaying 21 to 40 of 41

Invasive Plants in Pennsylvania: Giant Hogweed [PDF, 180 KB]
- 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
Invasive Species Compendium - Heracleum mantegazzianum
- CAB International.
Invasive.org - Giant Hogweed
- University of Georgia. Center for Invasive Species and Ecosystem Health.
King County (Washington) Noxious Weed Control Program - Giant Hogweed
- King County Department of Natural Resources (Washington). Water and Land Resources Division.
New York Invasive Species Information - Giant Hogweed
- New York Invasive Species Clearinghouse.
New York Sea Grant Fact Sheet - Giant Hogweed (Heracleum mantegazzianum) - Poisonous Invader of the Northeast [PDF, 888 KB]
- Aug 2009
- New York Sea Grant.
- See also: Aquatic Invasive Species: Publications
NOBANIS: Invasive Alien Species Fact Sheet - Heracleum mantegazzianum [PDF, 590 KB]
- 2007
- European Network on Invasive Alien Species.
- See also: NOBANIS Fact Sheets for invasive alien species of the European region, covering both animals and plants, as well as microorganisms
Non-native Species Information: Giant Hogweed
- Great Britain Non-Native Species Secretariat.
Noxious Weeds Program
- 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.
PA Noxious Weed Alert: Giant Hogweed [PDF, 1.31 MB]
- Pennsylvania Department of Agriculture. Plant Industry.
- See also: Noxious, Invasive and Poisonous Plant Program Publications for more hogweed resources
Pest Tracker - Survey Status of Giant Hogweed
- USDA. APHIS. Cooperative Agricultural Pest Survey. National Agricultural Pest Information System.
Plant Pest Risk Assessment for Giant Hogweed, Heracleum mantegazzianum [PDF, 3.89 MB]
- 2013
- Oregon Department of Agriculture.
- See also: Weed Resources for more risk assessments
PLANTS Database - Giant Hogweed
- USDA. NRCS. National Plant Data Center.
Texas Invasives Database - Heracleum mantegazzianum
- TexasInvasives.org.
The Infamous Giant Hogweed
- Jan 2008
- Purdue University Extension. Weed Science.
U.S. National Plant Germplasm System - Heracleum mantegazzianum
- USDA. ARS. National Genetic Resources Program. GRIN-Global.
Virginia Tech Scientists who Identified Dangerous Giant Hogweed in Clarke County Hopeful That it will be Contained
- Jun 18, 2018
- Virginia Tech.
- 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.
Weed Control in Natural Areas in the Western United States: Giant Hogweed [PDF, 218 KB]
- 2013
- University of California. Weed Research and Information Center.
- See also: Weeds in Natural Areas for more information sheets
Weeds Australia - Giant Hogweed (Heracleum mantegazzianum)
- Centre for Invasive Species Solutions; Atlas of Living Australia; Australian Government. Department of Agriculture, Water and the Environment.
YouTube - Giant Hogweed: A Herculean Weed with Power
- Google. YouTube; University of Maryland Extension. Home and Garden Information Center.