Polygonaceae
Amphibious bistort
Persicaria amphibia
- Family
- Polygonaceae
- Genus
- Persicaria
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Common names
By language (32)
- Arabic
- عصى الراعي, بطباط قرمزي
- arz
- بيرسيكاريا البرمائيات, بطباط قرمزى
- Belarusian
- Драсён земнаводны, Вадзяная грэчка
- Bulgarian
- Земноводно пипериче
- Catalan
- Persicaire amphibie
- Chinese
- 两栖蓼, 两棲蓼
- Croatian
- Vodeni dvornik
- csb
- Zemnowòdny dërdest
- Czech
- Rdesno obojživelné
- Danish
- Vand-Pileurt
- Dutch
- Veenwortel, Polygonatum amphibium
- English
- Amphibious bistort, Water knotweed, Water smartweed, Longroot smartweed, Polygonatum amphibium
- Estonian
- Vesi-kirburohi, Vesi-kirbutatar, Vesikirburohi
- Finnish
- Vesitatar
- French
- Renouée amphibie, Persicaire amphibie
- German
- Wasser-Knöterich, Wasserknöterich, Persicaire amphibie
- Hausa
- Gayyayakin ruwa
- hsb
- Wódna wuroć
- Icelandic
- Tjarnablaðka
- Irish
- Glúineach uisce
- Japanese
- エゾノミズタデ
- Latvian
- Abinieku sūrene
- Lithuanian
- Būdmainis rūgtis, Persicaire amphibie
- Macedonian
- Водоземна подворка, Амфибиска подворка
- Norwegian Bokmål
- Vass-slirekne
- Polish
- Rdest ziemnowodny
- Romanian
- Sălcuță
- Russian
- Горец земноводный
- Slovenian
- Vodna dresen
- Swedish
- Vattenpilört, Grodpilört, Persicaire amphibie
- Ukrainian
- Гірчак земноводний
- Welsh
- Canwraidd y dŵr
Synonyms
- Chulusium amphibium (L.) Raf.
- Chulusium fluitans Raf.
- Chulusium natans Raf.
- Persicaria amphibia var. emersa (Michx.) J.C.Hickman
- Persicaria amphibia var. stipulacea (N.Coleman) H.Hara
- Persicaria amphibia var. terrestris (Leyss.) Munshi & Javeid
- Persicaria amurensis Nieuwl.
- Persicaria coccinea (Muhl. ex Willd.) Greene
- Persicaria hartwrightii (A.Gray) Greene
- Persicaria muhlenbergii (S.Watson) Small
- Polygonum amphibium L.
- Polygonum amphibium subsp. laevimarginatum Hultén
- Polygonum amphibium var. amurense Korsh.
- Polygonum amphibium var. emersum Michx.
- Polygonum amphibium var. muehlenbergii Meisn.
- Polygonum amphibium var. stipulaceum N.Coleman
- Polygonum amphibium var. terrestre Leyss.
- Polygonum amphibium var. vestitum Hemsl.
- Polygonum coccineum Muhl. ex Willd.
- Polygonum coccineum var. pratincola (Greene) Stanford
- Polygonum coccineum var. rigidulum Stanford
- Polygonum emersum (Michx.) Britton
- Polygonum hartwrightii A.Gray
- Polygonum muhlenbergii S.Watson
- Polygonum natans Eaton
- Polygonum rigidulum E.Sheld.
- Polygonum salicifolium Schur
Flowers
- In flower
- July to September (from 2,369 flowering iNaturalist observations worldwide)
Photos
FlowerPhoto: M. Whitson, CC BY 4.0, from iNaturalist 
FlowerPhoto: Kevin Krebs, CC BY 4.0, from iNaturalist 
FlowerPhoto: Tom Norton, CC BY 4.0, from iNaturalist 
FlowerPhoto: Bruce Cook, CC0, from iNaturalist 
LeavesPhoto: Ryan Sorrells, CC BY 4.0, from iNaturalist 
Photo: Svdmolen, CC BY 2.5, from Wikimedia Commons 
Photo: Anne Burgess, CC BY-SA 2.0, from Wikimedia Commons 
Photo: Sandy Wolkenberg, CC BY 4.0, from iNaturalist 
Photo: AnRo0002, CC0, from Wikimedia Commons 
Photo: AnRo0002, CC0, from Wikimedia Commons 
Photo: Christine Rudman, CC0, from iNaturalist 
Photo: AnRo0002, CC0, from Wikimedia Commons
More in Persicaria
- Water-pepperPersicaria hydropiperPolygonaceae
- Red shankPersicaria maculosaPolygonaceae
- Common bistortPersicaria bistortaPolygonaceae
- Curlytop knotweedPersicaria lapathifoliaPolygonaceae
- Small water-pepperPersicaria minorPolygonaceae
- Pink bubble persicariaPersicaria capitataPolygonaceae
- Chinese knotweedPersicaria chinensisPolygonaceae
- Persicaria orientalisPolygonaceae
- Tasteless water-pepperPersicaria mitisPolygonaceae
- Persicaria tinctoriaPolygonaceae
- Denseflower knotweedPersicaria glabraPolygonaceae
- Nepalese smartweedPersicaria nepalensisPolygonaceae
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). About our plant data.