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[1] [2] Common names include Japanese knotweed [2] and Asian knotweed. [3] It is native to East Asia in Japan , China and Korea . In North America and Europe , the species has successfully established itself in numerous habitats, and is classified as a pest and invasive species in several countries.
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]
Japanese knotweed (Reynoutria japonica spp.) - was introduced to the United States from East Asia, [14] shoots are edible and the roots are used for medicinal purposes [15] Wintercress (Barbarea vulgaris spp.) - invasive, [16] leaves are edible [17] Wild parsnip (Pastinaca sativa) [18]
Japanese knotweed (Reynoutria japonica) is considered one of the world's worst invasive species. Cats (here, killing a woodpecker) are considered invasive species in Australia and negatively impact wildlife worldwide. Invasive species appear to have specific traits or specific combinations of traits that allow them to outcompete native species ...
Knotweed is a common name for plants in several genera in the family Polygonaceae. Knotweed may refer to: Fallopia; Persicaria; Polygonum; Reynoutria. Reynoutria japonica or Japanese knotweed, a highly invasive species in Europe and North America
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 ).
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.
Reynoutria multiflora is a herbaceous perennial vine growing to 2–4 m (6 ft 7 in – 13 ft 1 in) tall from a woody tuber.The leaves are 3–7 cm (1.2–2.8 in) long and 2–5 cm (0.79–1.97 in) broad, broad arrowhead-shaped, with an entire margin.