Hydrocharis morsus-ranaeL.

Common FrogbitEuropean Frog-bitEuropean FrogbitEuropean Frog’s-bitFrogbitcommon frogbitfrogbit

WFO wfo-0000769381 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Hydrocharis morsus-ranae, photographed by Jane Concannon
fig. a Jane Concannon, CC0 1.0 / 2022-06-12 / obs. 205606906
Hydrocharis morsus-ranae, photographed by Светлана Царахова
fig. b Светлана Царахова, CC0 1.0 / obs. 203381223
Hydrocharis morsus-ranae, photographed by Вячеслав Юсупов
fig. c Вячеслав Юсупов, CC BY 4.0 / obs. 203414852
Hydrocharis morsus-ranae, photographed by Yurii Basov
fig. d Yurii Basov, CC BY 4.0 / obs. 201474713
Hydrocharis morsus-ranae, photographed by Марина Садыкова
fig. e Марина Садыкова, CC BY 4.0 / obs. 199601365
Hydrocharis morsus-ranae, photographed by Michel Langeveld
fig. f Michel Langeveld, CC BY 4.0 / obs. 199396939
Hydrocharis morsus-ranae, photographed by Ben Rowson
fig. g Ben Rowson, CC BY 4.0 / obs. 191735871
Hydrocharis morsus-ranae, photographed by Марина Садыкова
fig. h Марина Садыкова, CC BY 4.0 / obs. 165114579

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Native range 44 botanical countries

Regions where Hydrocharis morsus-ranae is native: Algeria, Morocco, Altay, Irkutsk, Kazakhstan, Krasnoyarsk, Lebanon-Syria, North Caucasus, Palestine, Transcaucasus, Türkiye, West Siberia, Austria, Baltic States, Belarus, Belgium, Bulgaria, Central European Russia, Czechia-Slovakia, Denmark, East European Russia, Finland, France, Germany, Great Britain, Greece, Hungary, Ireland, Italy, Krym, Netherlands, North European Russia, Northwest European Russia, Norway, NW. Balkan Pen., Poland, Portugal, Romania, South European Russia, Spain, Sweden, Switzerland, Türkiye-in-Europe, Ukraine AlgeriaMoroccoAltayIrkutskKazakhstanKrasnoyarskLebanon-SyriaNorth CaucasusPalestineTranscaucasusTürkiyeWest SiberiaAustriaBaltic StatesBelarusBelgiumBulgariaCentral European RussiaCzechia-SlovakiaDenmarkEast European RussiaFinlandFranceGermanyGreeceHungaryIrelandItalyKrymNetherlandsNorth European RussiaNorthwest European RussiaNorwayNW. Balkan Pen.PolandPortugalRomaniaSouth European RussiaSpainSwedenSwitzerlandTürkiye-in-EuropeUkraine
Native distribution of Hydrocharis morsus-ranae, after Kew’s World Checklist of Vascular Plants. Introduced, extinct and doubtful records are excluded, so this is where the plant is from, not everywhere it now grows.
RegionTDWG codeContinent
Austria AUT EUROPE
Baltic States BLT
Belarus BLR
Belgium BGM
Bulgaria BUL
Central European Russia RUC
Czechia-Slovakia CZE
Denmark DEN
East European Russia RUE
Finland FIN
France FRA
Germany GER
Great Britain GRB
Greece GRC
Hungary HUN
Ireland IRE
Italy ITA
Krym KRY
Netherlands NET
North European Russia RUN
Northwest European Russia RUW
Norway NOR
NW. Balkan Pen. YUG
Poland POL
Portugal POR
Romania ROM
South European Russia RUS
Spain SPA
Sweden SWE
Switzerland SWI
Türkiye-in-Europe TUE
Ukraine UKR
Altay ALT ASIA-TEMPERATE
Irkutsk IRK
Kazakhstan KAZ
Krasnoyarsk KRA
Lebanon-Syria LBS
North Caucasus NCS
Palestine PAL
Transcaucasus TCS
Türkiye TUR
West Siberia WSB
Algeria ALG AFRICA
Morocco MOR

Not drawn on the map: Great Britain. We hold no public-domain boundary for this region, so it is listed rather than guessed at.

Region boundaries approximated from Natural Earth (public domain) and mapped to TDWG World Geographical Scheme for Recording Plant Distributions (WGSRPD) level-3 botanical countries (Brummitt 2001). Indicative, not the official WGSRPD geometry.

Also published as 9 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.

  • Hydrocharis asarifolia Gray
  • Hydrocharis asarifolia var. odoratissima Gray
  • Hydrocharis batrachyodegma St.-Lag.
  • Hydrocharis cordifolia St.-Lag.
  • Hydrocharis morsus-ranae f. terrestris Glück
  • Hydrocharis morsus-ranae subsp. vivipara (Ces.) Arcang.
  • Hydrocharis morsus-ranae var. vivipara Ces.
  • Hydrocharis rotundifolia Gilib.
  • Sagittaria triflora Hort.Bog. ex Miq.

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.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.
  4. Kew, World Checklist of Vascular Plants (WCVP v16). native distribution by TDWG level-3 botanical country, and life form. CC BY 3.0. Retrieved 2026-06-04.

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