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Giant hogweed (Heracleum mantegazzianum), also known as Giant cow parsnip is a perennial plant and a member of the carrot family. It is a garden ornamental from southwest Asia that is naturalizing in North America and becoming more common in southern and central Ontario.
Giant hogweed ( Heracleum mantegazzianum) is arguably the most dangerous invasive plant in New York State, as a a significant threat to both human and environmental health. Exposure to the sap can cause serious burns for humans and livestock, and giant hogweed also has the capacity to invade natural and disturbed habitats.
Jul 16, 2018 · What's 14 feet tall, green, hairy, and covered in toxic sap? It may sound like a monster, but this scary beast is actually giant hogweed, a towering, invasive plant whose sap can cause painful...
- cpicard@hearst.com
- Contributing Writer
Aug 31, 2021 · Giant hogweed has thick, green, bristly stems with an often mottled-purple appearance. It also has white, upwards facing flowers in summer, arranged in umbels which can be as large as 2ft (60cm) across. The jagged leaves are equally huge – up to 4.9ft (1.5m) wide and 9.8ft (3m) long.
- Holly Crossley
Browse 175 authentic giant hogweed stock photos, high-res images, and pictures, or explore additional poison ivy or poison sumac stock images to find the right photo at the right size and resolution for your project.
From late spring to mid-summer, giant hogweed produces a large upside-down umbrella-shaped head, up to 80 cm across, with clusters of tiny white flowers. Giant hogweed has a phototoxic sap that, when exposed to light, can cause severe burns on human skin.
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Jun 29, 2022 · Common names: giant hogweed, giant cow parsnip, cartwheel plant, the Hog. Scientific name: Heracleum mantegazzianum. Family: Apiaceae. Habitat: derelict gardens, neglected urban places and waste ground, on rubbish tips, roadsides and by streams and rivers. Flowering season: June and July.
