Heracleum mantegazzianum, commonly known as giant hogweed, cartwheel-flower, giant cow parsnip, hogsbane or giant cow parsley, is a plant in the family Apiaceae. In New Zealand, it is also sometimes called wild parsnip, or wild rhubarb. It typically grows to heights of 2 to 5.5 m (6 ft 7 in to 18 ft 1 in). Superficially, it resembles common hogweed (Heracleum sphondylium), Heracleum sosnowskyi, or garden angelica (Ang