Onagraceae

Marsh willowherb

Epilobium palustre L.

Family: Onagraceae
Genus: Epilobium

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Marsh willowherb (Epilobium palustre) — FlowerPhoto: Алексей Ябс, CC0, from iNaturalist

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Common names

By language (25)

Azerbaijani: Bataqlıq yağıotu
Belarusian: Скрыпень балотны
Bulgarian: Блатна върбовка
Catalan: Epilobe des marais
Chinese: 沼生柳叶菜, 水湿柳叶菜, 沼泽柳叶菜, 独木牛
Czech: Vrbovka bahenní
Dutch: Moerasbasterdwederik, Beetroosje
English: Marsh willowherb
Estonian: Soo-pajulill
Finnish: Suohorsma
French: Epilobe des marais, Épilobe des marais
German: Sumpf-Weidenröschen, Sumpfweidenröschen, Epilobe des marais
hsb: Bahnowa wjerbinka
Hungarian: Mocsári füzike
Italian: Epilobio palustre
Japanese: ホソバアカバナ
Lithuanian: Epilobe des marais
Norwegian Nynorsk: Myrmjølke
Persian: بید علفی مردابی
Polish: Wierzbownica błotna
Romanian: Pufuliță
Slovenian: Močvirski vrbovec
Spanish: Adelfilla palustre, Epilobio palustre
Swedish: Kärrdunört, Epilobe des marais
Ukrainian: Зніт болотний

Synonyms

Chamaenerion americanum Sweet
Chamaenerion palustre (L.) Schreb.
Chamaenerion palustre (L.) Scop.
Epilobium alpinum L.
Epilobium alpinum var. gavei H.Lév.
Epilobium alpinum var. majus Hartm.
Epilobium alpinum var. minus Hartm.
Epilobium alsineifolium Wirtg. ex Hausskn.
Epilobium clavatotrichon (Rohlena) A.W.Hill
Epilobium empetrifolium Kunze ex Hausskn.
Epilobium fischerianum (Hausskn.) Pavlov
Epilobium kerneri Borbás
Epilobium ligulatum Baker
Epilobium lineare Muhl.
Epilobium lineare f. angustissimum Hausskn.
Epilobium lineare f. latifolium E.L.Rand & Redfield
Epilobium lineare f. pennsylvanicum Hausskn.
Epilobium lineare f. simplex Hausskn.
Epilobium lineare var. oliganthum (Michx.) Trel.
Epilobium molle var. sabulonense Fernald
Epilobium nesophilum var. lupulinum Hodgdon & R.B.Pike
Epilobium nesophilum var. sabulonense (Fernald) Fernald
Epilobium nutans Kern.
Epilobium oliganthum Michx.
Epilobium oliganthum var. albescens (Richardson) Farw.
Epilobium palustre f. lineare Regel
Epilobium palustre f. longigemmis Murb.
Epilobium palustre subsp. slendzinskii Tacik
Epilobium palustre var. adenophorum Hausskn.
Epilobium palustre var. albescens Richards
Epilobium palustre var. albescens Wahlenb.
Epilobium palustre var. albiflorum Lehm.
Epilobium palustre var. alpicola Hausskn.
Epilobium palustre var. alpinum Lapeyr.
Epilobium palustre var. altaicum Hausskn.
Epilobium palustre var. angustifolium Willk. ex Debeaux
Epilobium palustre var. brevipes Hartm.
Epilobium palustre var. clavatotrichon Rohlena
Epilobium palustre var. confertum Hausskn.
Epilobium palustre var. fischerianum Hausskn.

and 37 more.

Flowers

In flower: July to August (from 157 flowering iNaturalist observations worldwide)

Characteristics

Growth habit: Forb/herb
Lifespan: Perennial
In the US and Canada: Alaska: native, Canada: native, Greenland: native, Lower 48 states: native, St. Pierre and Miquelon: native

Photos

FlowerPhoto: Алексей Ябс, CC0, from iNaturalist
FlowerPhoto: Георгий Виноградов (Georgy Vinogradov), CC BY 4.0, from iNaturalist
FlowerPhoto: Алексей Ябс, CC0, from iNaturalist
Photo: Kristian Peters -- Fabelfroh 08:57, 17 August 2007, CC BY-SA 3.0, from Wikimedia Commons
Photo: Bryan Connolly, CC BY 4.0, from iNaturalist
Photo: Marta Vidal gallego, CC BY-SA 4.0, from Pl@ntNet via GBIF
Photo: Valerii Glazunov, CC BY 4.0, from iNaturalist
Photo: Kristian Peters -- Fabelfroh 08:58, 17 August 2007, CC BY-SA 3.0, from Wikimedia Commons
Photo: Chardonneret, CC BY-SA 4.0, from Pl@ntNet via GBIF
Photo: Valerii Glazunov, CC BY 4.0, from iNaturalist
Photo: Matti Virtala, CC0, from Wikimedia Commons
Photo: ioana sur, CC BY-SA 4.0, from Pl@ntNet via GBIF

More in Epilobium

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.