Notable projects include research into invasive plants including Japanese Knotweed, Giant Hogweed and Himalayan Balsam. They deal with invasive species like knotweed, giant hogweed and selective herbicide control methods. There are also foreign invaders such as Himalayan balsam and the toxic giant hogweed. Common names for the genus or its species include hogweed and cow parsnip. The sap of the giant hogweed plant is phototoxic. In other words, the giant hogweed is a herbaceous perennial. Giant hogweed is native to the western Caucasus region of Eurasia. Giant hogweed typically grows to heights of . Hogweed Plants from Europe on Thirteen Different Bacteria. Because of its phototoxicity and invasive nature, giant hogweed is often actively removed. Hogweed is a common name for several unrelated plants. An alternative recipe for the almond borscht replaced pickled hogweed with vinegar. First reports of giant hogweed in British Columbia were published in the 1930s. Giant hogweed is beginning to make its presence felt. Authorities advise that all humans (especially children) should stay away from giant hogweed.