Jenson, nine, was stung by a giant hogweed in Ryhope Park, Sunderland, while trying to fetch a football. Toxic sap from the weed, which grows near canals and rivers, can increase the sensitivity ...

Giant hogweed (Heracleum mantegazzianum) also known as giant cow parsley, hogsbane, or cartwheel-flower, is a plant in the carrot family. People who touch its sap may develop giant hogweed burns ...

However, she stressed that only experts should handle or removed growths of giant hogweed. The plant contains an oil that can result in serious injuries if it comes in contact with skin ...

Originally from Eurasia, giant hogweed (Heracleum mantegazzianum) was imported into the American heartland for ornamental ...