Chinese knotweed
A flowering plant of species Persicaria chinensis, from the family Polygonaceae,…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.
Meaning
3 senses(uncountable)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.
(uncountable)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.
(uncountable)A large, perennial, rhizomatous herb, of species Koenigia weyrichii, native to East Asia.
Synonyms
3 synonymsLessons for this word
1 lessons- A1Countable and uncountable nouns — Because it can be uncountable
See also
neighbours in the dictionaryDictionary text adapted from Wiktionary (Wiktionary contributors, CC BY-SA 4.0) and Open English WordNet / Princeton WordNet (CC BY 4.0, WordNet License); shared under CC BY-SA 4.0. Example sentences and recordings are credited where they appear.