Giant hogweed originates from the Caucasus Mountains between the Black and Caspian seas by Russia - but it made its way to the U.S. by the early 20th century. It has a reputation for being the most dangerous plant in Britain. Giant hogweed might look like an ordinary plant, but it's been causing problems for children this summer. Giant hogweed might look like an ordinary plant, but it's been causing problems for children this summer. These two giant herbs look similar to each other, but the cow parsnip is shorter and has less blooms than the giant hogweed. The common name eltrot may also be applied, but is not specific to this species. A sovkhoz in the Pskov Region, July 29, 1974. Ihaventgottimeforthis Tue 03-Jul-18 15:28:08. Add message | Report | See all. Sign up here! Main article: June 2015. Giant hogweed - a dangerous, invasive weed - recently began spreading across New York, sparking fear and warnings from the state's Department of … See photo from wild flower guide book. It's very dangerous, and could cause blindness if you touch it. The Woodland Trust outlines the appearance of Giant Hogweed so that you can better identify the dangerous plant: Stems: the stems are green with purple blotches and stiff, white hairs. Giant hogweed is toxic and can take up to 10 years to remove (Image: Harpenden Town Council) Sign up to our newsletter for daily updates and breaking news. Although stunning when fully grown, giant hogweed is an invasive plant and can potentially be harmful. It's part of the carrot family, but it can grow up to 14 feet tall. A toxic reaction can begin as soon as 15 minutes after contact. Its danger becomes compounded by its strong resemblance to another, harmless plant. According to experts, a pernicious species once dubbed the UK’s “most dangerous” plant has been spreading across the country. Sign up here! According to the DEC, the toxic plant grows in New York, Pennsylvania, Ohio, Maryland, Oregon, Washington, Michigan, Virginia, Vermont, New Hampshire and Maine. The plant is particularly worrisome as you don't have to break it or rub the sap into your skin for its painful effects to take hold - just an unlucky brush with its leaves or stem is all it takes. How the Sosnowsky's hogweed appeared in Russia. The poisonous giant hogweed, 'Britain's most dangerous plant' that can cause severe burns or even blindness when touched, has returned with a vengeance due to this year's warm weather. The N.Y. Department of Health recommends that you wash it off with cold water immediately and get out of the sun. Add message | Report | See all. Heracleum mantegazzianum, more commonly known as Giant Hogweed, is often referred to as ‘the most dangerous plant in Britain’ due to the burning and scarring it can cause. In the UK, it’s especially common to find the giant hogweed alongside rivers, which can transport the plant’s seeds. The 15-foot-tall invasive plant locally known as hogweed (Heracleum mantagazzianum) was recently spotted for the first time in Virginia. It contains furocoumarin, which makes skin extremely sensitive to sunlight (phytophotodermatitis). Call a professional or local authorities who can properly destroy the plant and its seeds. "It's tall, and a bit odd looking, and grows in places where kids play, so they like to bash around in it. Touching giant hogweed can also cause long-term sunlight sensitivity, and blindness if sap gets into a person's eye. The story of hogweed began in … The giant hogweed can reach almost 15 feet tall. Credit: New York Department of Environmental Conservation. Its stems (pictured at top left) are green with purple blotches and white hairs. 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