Reynoutria japonica, synonyms Fallopia japonica and Polygonum cuspidatum, is a species of herbaceous perennial plant in the knotweed and buckwheat family Polygonaceae. Common names include Japanese knotweed and Asian knotweed. 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. The plant is popular with beekeepers, and its young stems are edible, making it an increasingly popular foraged vegetable with a flavour described as lemony rhubarb.
Polygonum is a genus of about 130 species of flowering plants in the buckwheat and knotweed family Polygonaceae. Common names include knotweed and knotgrass. In the Middle English glossary of herbs Alphita, it was known as ars-smerte. There have been various opinions about how broadly the genus should be defined. For example, buckwheat has sometimes been included in the genus as Polygonum fagopyrum. Former genera such as Polygonella have been subsumed into Polygonum; other genera have been split off.
Fallopia is a genus of about 12 species of flowering plants in the buckwheat family, often included in a wider treatment of the related genus Polygonum in the past, and previously including Reynoutria. The genus is native to temperate and subtropical regions of the Northern Hemisphere, but species have been introduced elsewhere. The genus includes species forming vines and shrubs.
Dragonwort is a common name for a plant which may refer to:
Wiregrass is a common name for several plants
Common knotweed is a common name for several plants and may refer to:
Reynoutria multiflora is a species of flowering plant in the buckwheat family Polygonaceae native to central and southern China. It is known by the English common names tuber fleeceflower and Chinese (climbing) knotweed. It is known as he shou wu in China and East Asia. Another name for the species is fo-ti, which is a misnomer.
Chinese knotweed is a common name for several plants and may refer to:
Reynoutria sachalinensis (giant knotweed or Sakhalin knotweed is a species of Fallopia native to northeastern Asia in northern Japan and the far east of Russia.
Pink knotweed is a common name for several plants in the knotweed family (Polygonaceae) and may refer to:
Henryi, a new Latin adjective used for any of several naturalists named Henry, may refer to:
× Reyllopia is a hybrid genus with a single known species, × Reyllopia conollyana, the Haringey knotweed or railway-yard knotweed. The species is a hybrid between Japanese knotweed and the Russian vine. The only known wild British population was discovered by David Bevan at Railway Fields in 1987.
Aphalara itadori, the Japanese knotweed psyllid, is a species of psyllid from Japan which feeds on Japanese knotweed.
R. japonica may refer to:
Ann P. Conolly (1917–2010) was a British botanist and teacher who contributed to quaternary botany and conducted important early work on the history and spread of Japanese Knotweed in the UK.
Fleeceflower is a common name for genera and species in the subfamily Polygonoideae, and may refer to:
Bohemian knotweed is a nothospecies that is a cross between Japanese knotweed and giant knotweed. It has been documented as occurring in the wild in Japan. The scientific name is accepted to be Reynoutria × bohemica, but it may also be referred to as Fallopia × bohemica and Polygonum × bohemicum.
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. Members of the genus, including R. japonica and its hybrid with R. sachalinensis, are highly invasive plants.
Polygonoideae is a subfamily of plants in the family Polygonaceae. It includes a number of plants that can be highly invasive, such as Japanese knotweed, Reynoutria japonica, and its hybrid with R. sachalinensis, R. × bohemica. Boundaries between the genera placed in the subfamily and their relationships have long been problematic, but a series of molecular phylogenetic studies have clarified some of them, resulting in the division of the subfamily into seven tribes.
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