Alisma plantago-aquaticaL.

European Water-plantain

WFO wfo-0000755470 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h

Alisma plantago-aquatica, photographed by Марина Садыкова
fig. a Марина Садыкова, CC BY 4.0 / 2022-06-04 / obs. 203241504
Alisma plantago-aquatica, photographed by Нурхайдарова Татьяна
fig. b Нурхайдарова Татьяна, CC BY 4.0 / obs. 203429912
Alisma plantago-aquatica, photographed by Tomas Pocius
fig. c Tomas Pocius, CC0 1.0 / obs. 203116928
Alisma plantago-aquatica, photographed by Sandra Cellina
fig. d Sandra Cellina, CC BY 4.0 / obs. 200768397
Alisma plantago-aquatica, photographed by Aleksei Baushev
fig. e Aleksei Baushev, CC BY 4.0 / obs. 200547683
Alisma plantago-aquatica, photographed by Lee
fig. f Lee, CC BY 4.0 / obs. 201039081
Alisma plantago-aquatica, photographed by Марина Садыкова
fig. g Марина Садыкова, CC BY 4.0 / obs. 203261181
Alisma plantago-aquatica, photographed by Марина Садыкова
fig. h Марина Садыкова, CC BY 4.0 / obs. 199546660

Every figure is a research-grade observation under CC0, CC BY or CC BY-SA, rehosted with the photographer’s name, the licence and the observation it came from. Photographs under a NonCommercial licence are excluded from this site and are never stored, which costs us a great many pictures and is not negotiable.

Confused withby our own model

These are not lookalikes we guessed at. Each one is a species our identification model genuinely mistook for this plant, and how many times. The error rate is published.

Flowering n = 734 observations

Peak flowering in Jul, from 734 community-annotated observations worldwide. This is a global aggregate, not a forecast for your garden: the same species flowers on different dates in different hemispheres, and citizen-science records cluster near cities, at weekends, and in spring. Where a species has fewer than 30 annotated records we do not draw this chart at all.

Also published as 38 synonyms

A synonym is not an error. It is a record of botanists disagreeing, in print, about where this plant belongs. Each of these was somebody’s considered answer.

  • Alisma angustifolium Hoppe
  • Alisma ceretanicum Sennen
  • Alisma coreanum H.Lév.
  • Alisma flavum Thunb.
  • Alisma heterophyllum Schur
  • Alisma jianshiensis J.K.Chen, X.Z.Sun & H.Q.Wang
  • Alisma latifolium Gilib.
  • Alisma major Gray
  • Alisma michaletii (Asch. & Graebn.) Asch. & Graebn.
  • Alisma natans Pollich
  • Alisma orientale (Sam.) Juz.
  • Alisma paniculatum Stokes
  • Alisma plantagineum St.-Lag.
  • Alisma plantaginifolium St.-Lag.
  • Alisma plantago-aquatica f. aquaticum Glück
  • Alisma plantago-aquatica f. fluitans (Hartm.) Holmb.
  • Alisma plantago-aquatica f. latifolium Lunell
  • Alisma plantago-aquatica f. latifolium (Kunth) Buchenau
  • Alisma plantago-aquatica f. pumilum Glück
  • Alisma plantago-aquatica f. stenophyllum Lunell
  • Alisma plantago-aquatica f. terrestris Glück
  • Alisma plantago-aquatica subsp. latifolium Ehrh.
  • Alisma plantago-aquatica subsp. michaletii Asch. & Graebn.
  • Alisma plantago-aquatica var. cordifolia Blytt

and 14 more.

Sourcesevery claim on this page

  1. World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
  2. iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.

We publish what we can source and we say so when we cannot. This page has no care advice, no toxicity claim and no native range, because we do not yet have those from a source we can cite.