Giant Hogweed is a hazardous plant that can cause severe skin reactions and even long-term sensitivity to sunlight. This ...

Unlike other plants that cause skin irritation, giant hogweed doesn't affect people ... the weed causes a reaction called phytophotodermatitis, leaving burns, blisters, and purplish-black scars ...

In short - the sap of giant hogweed can cause burns. It contains furocoumarin, which makes skin extremely sensitive to sunlight. “If the sap gets onto your skin and it's then exposed to the sun ...