Heracleum mantegazzianum(HERMZ)
Distribution details in United States of America (Washington)
Current pest situation evaluated by EPPO on the basis of information dated
2005: Present, restricted distribution
* Gucker, Corey L. 2009. Heracleum mantegazzianum. In: Fire Effects Information System, [Online]. U.S. Department of Agriculture, Forest Service, Rocky Mountain Research Station, Fire Sciences Laboratory (Producer). Available: https://www.fs.fed.us/database/feis/plants/forb/herman/all.html [2019, June 26].
* Natural Resources Conservation Service. PLANTS Database. United States Department of Agriculture. Accessed October 23, 2025, from https://plants.usda.gov.
* Natural Resources Conservation Service. PLANTS Database. United States Department of Agriculture. Accessed October 23, 2025, from https://plants.usda.gov.
| Country | State | Status | |
|---|---|---|---|
| Canada | British Columbia | Present, no details | |
| Canada | Present, restricted distribution | ||
| Canada | Ontario | Present, few occurrences | |
| Canada | New Brunswick | Present, no details | |
| Canada | Newfoundland | Present, no details |