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In the UK, Japanese knotweed is a single female clone. However, it is able to readily hybridise with related species. [38] In the UK, Japanese knotweed is established in the wild in many parts of the country and creates problems due to the impact on biodiversity, flooding management and damage to property.
Reynoutria is a genus of flowering plants in the Polygonaceae, also known as the knotweed or buckwheat family.The genus is native to eastern China, Eastern Asia and the Russian Far East, although species have been introduced to Europe and North America. [1]
The European rabbit, introduced to Britain by the Romans in 1AD, [2] eats and therefore damages a wide variety of crops and cost the UK £263 million. Japanese knotweed, introduced as an ornamental garden plant in the late 19th century, the roots of which spread by underground rhizomes, can undermine and damage buildings, pavements and roads ...
She used specimens from herbaria and information from the horticultural literature in Europe to show how the group of plants now called Japanese Knotweed changed from prizewinners in the Netherlands in 1847 to notifiable weeds in the UK in 1981. Her distribution maps showed how the Knotweed hybrids spread across the UK. [6] An unusual hybrid ...
Aphalara itadori, the Japanese knotweed psyllid, is a species of psyllid from Japan which feeds on Japanese knotweed (Reynoutria japonica).. The UK Government licensed the use of this species as a biological control to counter the spread of Japanese knotweed in England; this was the first time that biological control of a weed was sanctioned in the European Union.
The result has been the gradual eradication of native crayfish from the UK's rivers. In the case of the Chess, white-clawed crayfish have been extinct since the mid-1990s. The Chess is also home to a number of invasive alien plant species including Japanese knotweed, Himalayan balsam and Orange balsam.
Reynoutria sachalinensis, the giant knotweed or Sakhalin knotweed, (syns. Polygonum sachalinense , Fallopia sachalinensis ) is a species of Fallopia native to northeastern Asia in northern Japan ( Hokkaidō , Honshū ) and the far east of Russia ( Sakhalin and the southern Kurile Islands ).
Reynoutria japonica or Japanese knotweed, a highly invasive species in Europe and North America Index of plants with the same common name This page is an index of articles on plant species (or higher taxonomic groups) with the same common name ( vernacular name).