Polygonaceae
Knotweed
Polygonum paronychioides
- Family
- Polygonaceae
- Genus
- Polygonum
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Common names
By language (2)
- Chinese
- 綫葉蓼, 线叶蓼, 线叶萹蓄
- English
- Knotweed
Synonyms
- Polygonum englerianum H.Gross
- Polygonum himalayense H.Gross
Photos
Photo: Вячеслав Юсупов, CC BY 4.0, from iNaturalist 
Photo: Edmundas Greimas, CC BY 4.0, from iNaturalist
More in Polygonum
- Yard knotweedPolygonum avicularePolygonaceae
- Oval-leaf knotweedPolygonum arenastrumPolygonaceae
- Polygonum maritimumPolygonaceae
- Asiatic tearthumbPolygonum perfoliatumPolygonaceae
- Bellard's smartweedPolygonum patulumPolygonaceae
- European knotweedPolygonum arenariumPolygonaceae
- Narrowleaf knotweedPolygonum bellardiiPolygonaceae
- Polygonum cognatumPolygonaceae
- Horse-tail knotweedPolygonum equisetiformePolygonaceae
- KnotweedPolygonum oxyspermumPolygonaceae
- Douglas' knotweedPolygonum douglasiiPolygonaceae
- Erect knotweedPolygonum erectumPolygonaceae
Sources: classification, synonyms from World Flora Online Plant List (2026-06, CC0 1.0); common names, popularity from Wikidata (2026-10-26, CC0 1.0); common names, US characteristics from USDA PLANTS Database (2025-05-29, CC0 1.0). About our plant data.