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Japanese Knotweed

Flowering Plants

Reynoutria japonica, also known by the synonyms Fallopia japonica and Polygonum cuspidatum, is a herbaceous perennial plant in the knotweed and buckwheat family native to Japan, China and Korea, commonly called Japanese knotweed or Asian knotweed. Successfully established across numerous habitats in North America and Europe, it is classified as a pest and invasive species in several countries, even as its young stems are popular with foragers, prized for a flavor described as lemony rhubarb, and its flowers are valued by beekeepers.

Facts
Classification
Threats
Invasive and Other Problematic Species, Genes and Diseases 1
Relationship to People
Invasive or Introduced Species 1
Identification
Distinguishing Appearance
Hollow stems with distinct raised nodes giving a bamboo-like appearance 1
Scientific Name
Reynoutria japonica 1
Sources
1. Reynoutria japonica - Wikipedia
  • Lead paragraph, first sentence
    Reynoutria japonica, synonyms Fallopia japonica and Polygonum cuspidatum
  • Description
    hollow stems with distinct raised nodes that give it the appearance of bamboo
  • threat (MediaWiki batch-API article extract states it plainly)
    In North America and Europe, the species has successfully established itself in numerous habitats; it is classified as a pest and invasive species in several countries.
  • human-interaction (MediaWiki batch-API article extract states it plainly)
    In North America and Europe, the species has successfully established itself in numerous habitats; it is classified as a pest and invasive species in several countries.
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