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  1. Heracleum sphondylium - Wikipedia

    Heracleum sphondylium, commonly known as hogweed or common hogweed, is a herbaceous perennial plant in the carrot family Apiaceae, which includes fennel, cow parsley, ground elder …

  2. Giant Hogweed: Identification and Poison Management - WebMD

    Aug 21, 2024 · Learn to identify giant hogweed. Discover what symptoms to look for and actions to take if someone is poisoned.

  3. Giant Hogweed | Cornell Weed Identification

    If giant hogweed has been found in your area, educate those around you, especially children, on identification and avoidance of the plant. Although giant hogweed is palatable to cattle, sheep, …

  4. Hogweed | Giant, Invasive, Poisonous | Britannica

    Hogweed, either of two plant species of the cow parsnip genus (Heracleum) in the parsley family (Apiaceae). Both species are herbaceous biennials or perennials and have large compound …

  5. Species Spotlight - Giant Hogweed (U.S. National Park Service)

    Jun 13, 2018 · A fully grown giant hogweed, often described as Queen Anne’s lace on steroids, has leaves that can extend 5-feet wide, thick stalks topped with feathery umbrella-like flowers - …

  6. 17 Reasons Hogweed Has No Place In Your Garden—And How To …

    Jun 9, 2025 · Hogweed may look impressive, but don’t be fooled—this towering plant is toxic, invasive, and dangerous to both people and pets. From severe skin burns to rapid spreading …

  7. Giant Hogweed | Extension | West Virginia University

    It is a short-lived herbaceous perennial that can grow up to 15 feet tall, producing gigantic, showy, umbel-shaped flowers resembling that of wild carrot, only much larger. Giant hogweed is …

  8. Hogweed - The Wildlife Trusts

    Hogweed can be found along hedgerows and roadside verges, and on waste ground and rough grassland. It displays umbrella-like clusters of creamy-white flowers. It's native, unlike its …

  9. Giant hogweed identification and control - King County

    Giant hogweed is a regulated Class A noxious weed. This means eradication is required state-wide. Giant hogweed is also on the Washington quarantine list. Giant hogweed is known as …

  10. Giant Hogweed - NYSDEC

    This page introduces giant hogweed as a federally listed noxious plant and briefly touches on the hazards of it, what the plant looks like, its distribution in New York state, and what to do if you …