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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.
May 20, 2024 · This is how to identify giant hogweed, from its stems, leaves and flowers - see the difference between common hogweed, according to Woodland Trust.
The giant hogweeds are usually referred to by one name, Heracleum mantegazzianum. Research by RHS and other botanists shows that, while this is one of the species, there are as many as four other giant hogweeds at large in Britain some of which are biennial and others perennial.
This enormous member of the umbellifer family contains furocoumarin, which, even after minimal contact, can cause the skin to react strongly to sunlight, leaving burns. Learn how to identify giant hogweed using its leaves, flowers and stem with our species guide.
Giant hogweed, unlike our native common hogweed, is a very large plant which can grow up to 5m tall. It has hundreds of individual small white flowers in summer, these are arranged in umbrella shaped flower-heads (umbels) and can produce between 20-50,000 of seeds each year.
Giant Hogweed is a notoriously dangerous plant which though uncommon in the UK is something you are likely to see if you spend a lot of time walking beside rivers and streams. That is its habitat; you will rarely find it far from a fresh water source.
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Aug 22, 2024 · Giant hogweed (Heracleum mantegazzianum) is a non-native, invasive weed. Native to southern Russia, it's a member of the Apiaceae family and is closely related to cow parsley, carrots and parsnips.
