Chinese knotweed

English

Noun

Chinese knotweed (uncountable)

  1. A flowering plant of species Persicaria chinensis, from the family Polygonaceae, widespread across China, Japan, the Indian Subcontinent, Indonesia, Malaysia, and Vietnam, used as an ingredient in herbal remedies.
    Synonym: creeping smartweed
  2. A flowering plant of species Reynoutria multiflora, in the family Polygonaceae, native to central and southern China, whose roots are an important ingredient in traditional Chinese medicine.
    Synonym: tuber fleeceflower
  3. A large, perennial, rhizomatous herb, of species Koenigia weyrichii, native to East Asia.
    Synonym: Weyrich's knotweed
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