With its huge leaves, hairy stems and towering, umbrella-shaped white flowers, it can grow up to 15 feet tall. But it is not just the plant’s intimidating looks that are worrisome. It is what the plant does. When it is touched, the plant releases sap toxic enough to make skin hypersensitive to the sun for years.
The U.S. Forest Service also warns that “sap in the eyes can cause temporary or possibly permanent blindness.”