Polygonaceae
Bellard's smartweed
Polygonum patulum
- Family
- Polygonaceae
- Genus
- Polygonum
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Common names
By language (10)
- Chinese
- 展枝蓼, 展枝萹蓄
- English
- Bellard's smartweed
- Estonian
- Laiuv kirburohi
- Finnish
- Kaakontatar
- Georgian
- Წიაღა
- Macedonian
- Раширена подворка
- Persian
- هفتبند پاکوتاه
- Russian
- Горец отклонённый
- Swedish
- Rysk trampört
- Welsh
- Y canclwm coch
Synonyms
- Polygonum bellardii var. gracilius Ledeb.
- Polygonum bellardii var. patulum (M.Bieb.) Meisn.
- Polygonum bordzilowskii Klokov
- Polygonum cretaceum Kom.
- Polygonum gracilius (Ledeb.) Klokov
- Polygonum kotovii Klokov
- Polygonum novoascanicum subsp. cretaceum (Kom.) Tzvelev
- Polygonum patulum f. gracilius (Ledeb.) I.Grinţ.
- Polygonum patulum subsp. kotovii (Klokov) Sutorý
- Polygonum patulum var. gracilius (Ledeb.) Rouy
- Polygonum salinum Baranov & Skvortsov ex S.X.Li & Y.L.Chang
- Polygonum spectabile Lehm.
Characteristics
- Growth habit
- Forb/herb
- Lifespan
- Annual
- In the US and Canada
- Lower 48 states: introduced
Photos
FlowerPhoto: Patrick Hacker, CC BY 4.0, from iNaturalist 
Photo: Oleksandr Shynder, CC BY 4.0, from iNaturalist 
Photo: Oleksandr Shynder, CC BY 4.0, from iNaturalist 
Photo: Oleksandr Shynder, CC BY 4.0, from iNaturalist 
Photo: Christoph Moning, CC BY 4.0, from iNaturalist 
Photo: Oleksandr Shynder, CC BY 4.0, from iNaturalist 
Photo: Oleksandr Shynder, CC BY 4.0, from iNaturalist 
Photo: Christoph Moning, CC BY 4.0, from iNaturalist 
Photo: Oleksandr Shynder, CC BY 4.0, from iNaturalist 
Photo: Oleksandr Shynder, CC BY 4.0, from iNaturalist 
Photo: Oleksandr Shynder, CC BY 4.0, from iNaturalist 
Photo: Michael Kozlov, CC BY 4.0, from iNaturalist
More in Polygonum
- Yard knotweedPolygonum avicularePolygonaceae
- Oval-leaf knotweedPolygonum arenastrumPolygonaceae
- Polygonum maritimumPolygonaceae
- Asiatic tearthumbPolygonum perfoliatumPolygonaceae
- European knotweedPolygonum arenariumPolygonaceae
- Narrowleaf knotweedPolygonum bellardiiPolygonaceae
- Polygonum cognatumPolygonaceae
- Horse-tail knotweedPolygonum equisetiformePolygonaceae
- KnotweedPolygonum oxyspermumPolygonaceae
- Douglas' knotweedPolygonum douglasiiPolygonaceae
- Erect knotweedPolygonum erectumPolygonaceae
- Polygonum humifusumPolygonaceae
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.