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Reynoutria japonica, synonyms Fallopia japonica and Polygonum cuspidatum, is a species of herbaceous perennial plant in the knotweed and buckwheat family Polygonaceae. [1] [2] Common names include Japanese knotweed [2] and Asian knotweed. [3]
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]
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
Japanese knotweed is seen in flower. Yellowish-white flower spikes appear in August and September, making now the best time of year to identify and report occurrences of this invasive species.
Fallopia × bohemica → Reynoutria × bohemica, Bohemian knotweed. Fallopia ciliinodis (Michx.) Holub – fringed black bindweed → Polygonum ciliinode; Fallopia denticulata (C.C.Huang) Holub → Pteroxygonum denticulatum; Fallopia japonica Houtt. – Japanese knotweed → Reynoutria japonica; Fallopia sachalinensis – giant knotweed → ...
Burdock (Arctium spp.) - was introduced to Europe, [12] leaves, flowers and roots are edible [13] 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]
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.
Persicaria capitata, the pink-headed persicaria, [2] pinkhead smartweed, [3] pink knotweed, Japanese knotweed, or pink bubble persicaria, is an Asian species of plants in the genus Persicaria within the Polygonaceae (US: buckwheat) family.