Polygonaceae
Tearthumb
Persicaria sagittata
- Family
- Polygonaceae
- Genus
- Persicaria
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Common names
By language (5)
- Chinese
- 箭头蓼, 箭葉蓼, 箭叶蓼, 西伯利亚刺蓼, 西伯利亞刺蓼, 雀翘, 雀翘实
- English
- Tearthumb, Arrowleaf tearthumb, American tearthumb, Arrowvine
- Japanese
- ウナギツカミ, アキノウナギツカミ、アキノウナギヅル
- Korean
- 미꾸리낚시
- Welsh
- Canwraidd America
Synonyms
- Helxine sagittatum (L.) Raf.
- Persicaria sagittata var. sieboldii (Meisn.) Nakai
- Persicaria sieboldii (Meisn.) Ohki
- Persicaria sieboldii var. brevifolia Kitag.
- Polygonum belophyllum Litv.
- Polygonum paludosum (Kom.) Kom.
- Polygonum sagittatum L.
- Polygonum sagittatum subsp. sieboldii (Meisn.) Vorosch.
- Polygonum sagittatum var. boreale Meisn.
- Polygonum sagittatum var. gracilentum Fernald
- Polygonum sagittatum var. paludosum Kom.
- Polygonum sagittatum var. sibiricum Meisn.
- Polygonum sagittatum var. sieboldii (Meisn.) Maxim. ex Kom.
- Polygonum sieboldii de Vriese ex Meisn.
- Polygonum sieboldii var. pratense Y.L.Chang & S.X.Li
- Tasoba sagittata (L.) Raf.
- Tracaulon sagittatum (L.) Small
- Tracaulon sibiricum Greene
- Tracaulon sieboldii (Meisn.) Greene
- Truellum paludosum (Kom.) Soják
- Truellum sagittatum (L.) Soják
- Truellum sibiricum (Meisn.) Soják
- Truellum sieboldii (Meisn.) Soják
Flowers
- In flower
- August to September (from 1,128 flowering iNaturalist observations worldwide)
Photos
FlowerPhoto: Tom Norton, CC BY 4.0, from iNaturalist 
FlowerPhoto: Emily Summerbell, CC BY 4.0, from iNaturalist 
FlowerPhoto: Tom Norton, CC BY 4.0, from iNaturalist 
FlowerPhoto: M. Whitson, CC BY 4.0, from iNaturalist 
Photo: Qwert1234, CC BY-SA 4.0, from Wikimedia Commons 
Photo: rj-that-scout, CC BY 4.0, from iNaturalist 
Photo: Christian Grenier, CC0, from Wikimedia Commons 
Photo: Christian Grenier, CC0, from Wikimedia Commons 
Photo: Ayotte, Gilles, 1948-, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Rita Shaw, CC0, from iNaturalist 
Photo: Ayotte, Gilles, 1948-, CC BY-SA 4.0, from Wikimedia Commons 
Photo: Becky Dill, CC0, from iNaturalist
More in Persicaria
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- Red shankPersicaria maculosaPolygonaceae
- Common bistortPersicaria bistortaPolygonaceae
- Amphibious bistortPersicaria amphibiaPolygonaceae
- 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
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.