Hogsbane

tall perennial herb (Heracleum mantegazzianum) of the carrot family native to the Caucasus that has a hollow, usually purple-blotched stem which can reach a height of 15 to 20 feet (4.6 to 6.1 meters) and white-flowered umbels arranged in flat-topped clusters usually over 2.5 feet (0.8 meters) in diameter and that produces an irritating sap that causes severe rashes and blistering

The giant hogweed has become invasive in Canada and the U.S. after being introduced as an ornamental plant in the early 1900s.

Sanskrit equivalent

महाकाण्डशाकः