Links
BC - Ministry of Agriculture - Field guide to noxious and other selected weeds of British Columbia: Giant Hogweed - fact sheet and photos
Connecticut Invasive Plant Working Group - Giant Hogweed in Connecticut - fact sheet and photos
Connecticut Invasive Plant Working Group - Hogweed Look-alikes - photo comparison (under construction)
IN - Purdue University Extension - The Imfamous Giant Hogweed - detailed brochure with photos (PDF)
Invasive.org - Invasive and Exotic Species of North America - Giant Hogweed (Heracleum mantegazzianum) -photos, North American distribution, links
Invasive.org - Invasive and Exotic Species of North America - Plant Invaders of Mid-Atlantic Natural Areas - GiantHogweed - brief fact sheet and photo
Invasive.org - Invasive and Exotic Species of North America - USDA-APHIS, Domestic Programs Pest Evaluation: GiantHogweed - fact sheet
Invasive.org - Invasive and Exotic Species of North America - USDA-APHIS Poster: Giant Hogweed - posterwith photos and information
Massachusetts Department of Agriculture Resources - Giant Hogweed Pest Alert - brief fact sheet and photos
MA - Holyoke Conservation Commission - Giant Hogweed - photos and information
MA - Holyoke Conservation Commission - Return of the Giant Hogweed - lyrics by Genesis
Michigan Department of Agriculture - Giant Hogweed: An Invasive Species CausesConcern - fact sheet
Michigan Department of Agriculture - Giant Hogweed: An Attractive butDangerous Noxious Weed - downloadable brochure (PDF)
New England - Invasive Plant Atlas of New England - Heracleum mantegazzianum - fact sheet and photos
NY - Invasive Plant Council of New York State - Giant Hogweed - fact sheet with photos
Oregon Department of Agriculture - Giant Hogweed - brief fact sheet and photos
Oregon Department of Human Services - Photodermatitis from Giant Hogweed - fact sheet (PDF)
PA - Penn State University - Giant Hogweed and Look-A-Likes - photo comparison (PDF)
Switzerland - Center for Applied Bioscience International - Giant Hogweed: Developing a Sustainable Strategy for Management in Europe - fact sheet and photos
The World Conservation Union, Invasive Species Specialist Group - Giant Hogweed - fact sheet andphotos
UK - Environment Agency - Giant Hogweed Information - fact sheet andphoto, for giant hogweed in Britain
UK - Emergency Nurse Magazine - Vegetation, vesicles and vegetables - excellent article on skin conditions that can be induced by plants.
USDA - Animal and Plant Health Inspection Service - Giant Hogweed - fact sheet andillustration
USDA - Animal and Plant Health Inspection Service - Federal Noxious Weed Regulations - includes list of federally noxious weeds
USDA - National Agricultural Library - Federal Regulations Pertaining to Giant Hogweed - fact sheet for regulators
USDA - National Agricultural Library - Species Profile: Giant Hogweed - photo, numerous links
USDA PLANTS Database - PLANTS Profile: Heracleum mantegazzianum - characteristics, US distribution
Washington Department of Ecology - Technical Information for Giant Hogweed -fact sheet and photos
WA - King County Noxious Weed Control Program (Washington State) - Giant Hogweed - brief fact sheet and photos
WA - King County Noxious Weed Control Program (Washington State) - Giant Hogweed Best Management Practices - detailedfact sheet and photo (PDF format)
WA - King County Noxious Weed Control Program (Washington State) - Scars from Noxious Weed Contact Can Fade butInformation is the Best Medicine
Washington State University - The perils of giant hogweed
Wisconsin Department of Natural Resources - Giant Hogweed (Heracleum mantegazzianum) - fact sheet and photos
WI - Freckmann Herbarium, UW-Stevens Point - Heracleum mantegazzianum -characteristics, photos, WI distribution
Wisconsin State Herbarium: Wisconsin Vascular Plants - Heracleum mantegazzianum - characteristics and other information