Also known as giant cow parsley, giant hogweed
can grow up to five metres.
| I'm a volunteer with Friends of Sowe Valley and we have reported outbreaks of Japanese Knotweed at various points along the river and surrounding areas, especially in Wyken Croft Nature Reserve, on a number of occasions.
The recent story of a dog in Sheffield that sustained serious skin burns following exposure to Giant Hogweed
highlights the serious risk this plant now poses.
, main, and the colourful cuckoo pint, above left
Plant experts said the plant spotted in Cardiff was hogweed, not giant hogweed
, and could still cause a nasty reaction but not one as serious as the giant variety.
Clockwise, the grey squirrel, signal crayfish, giant hogweed
and Japanese knotweed are among the invaders
Unable to walk without limping, Mr Cooper, a former dispensing optician, went to hospital where his condition initially baffled doctors but they eventually established the blisters were caused by giant hogweed
Also on the ones-towatch list are Morning Glory, Fremontodendron, Woody Nightshade and the Giant hogweed
(Heracleum mantegazzianum) - The hairs on the stems and the undersides of the leaves of this invasive wetland plant carry poisonous sap.
(Heracleum mantegazzianum) This ornamental plant escaped from gardens and colonises wasteland and riverbanks.
May 31, 2011 /PRNewswire-USNewswire/ -- Pennsylvania is winning its battle against Giant Hogweed
, a noxious, invasive weed that can cause blistering and scarring on the skin of susceptible people, but more work remains.
As the family cleared the land to begin construction of a summer cabin, a chance encounter between her son and some giant hogweed
(Heracleum mantegazzianum) resulted in angry, blistered skin.
And he added: "Our volunteers can't wait to be unleashed on Japanese knotweed, grey squirrels or giant hogweed
Of the newcomers that have found their way to Worcester County, she said, giant hogweed
has been found in North Brookfield and Sutton.
For example, giant hogweed
is a plant that often invades along rivers.