This little-known plant can cause third-degree burns and even alter human DNA — and it’s all over New York

It looks like an innocent flower, but it’s so dangerous it can alter human DNA. The Giant Hogweed is one of the most dangerous invasive plants in the US — and it’s all over New York state. The hogweed is packed with sap that it causes phytophotodermatitis — meaning it stops the skin’s ability to protect itself from the sun’s harmful rays. In extreme cases, exposure can result in third-degree burns and even blindness. And the effects can last months, or even years. Even just brushing against a Hogweed is...