Callitriche stagnalisScop.

Common Water-Starwortcommen water-starwortpond water starwortpond water-starwort

WFO wfo-0000778236 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Callitriche stagnalis, photographed by Pieter Pelser
fig. a Pieter Pelser, CC BY 4.0 / 2022-01-02 / obs. 205335460
Callitriche stagnalis, photographed by Penelope Noel Gillette
fig. b Penelope Noel Gillette, CC BY 4.0 / obs. 168721367
Callitriche stagnalis, photographed by Paul Bell-Butler
fig. c Paul Bell-Butler, CC BY 4.0 / obs. 166190667
Callitriche stagnalis, photographed by gnapp
fig. d gnapp, CC0 1.0 / obs. 165940178
Callitriche stagnalis, photographed by Andrew Allen
fig. e Andrew Allen, CC BY 4.0 / obs. 165302003
Callitriche stagnalis, photographed by catchwords
fig. f catchwords, CC BY 4.0 / obs. 163562855
Callitriche stagnalis, photographed by derek_onley
fig. g derek_onley, CC BY 4.0 / obs. 161835488
Callitriche stagnalis, photographed by Vladimír Fuka
fig. h Vladimír Fuka, CC BY 4.0 / obs. 160355369

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.

Native range 46 botanical countries

Regions where Callitriche stagnalis is native: Algeria, Azores, Canary Is., Madeira, Morocco, Tunisia, East Aegean Is., Transcaucasus, Türkiye, West Siberia, Albania, Austria, Baleares, Baltic States, Belarus, Belgium, Bulgaria, Corse, Czechia-Slovakia, Denmark, Finland, France, Germany, Great Britain, Greece, Hungary, Iceland, Ireland, Italy, Krym, Netherlands, North European Russia, Northwest European Russia, Norway, NW. Balkan Pen., Poland, Portugal, Romania, Sardegna, Sicilia, South European Russia, Spain, Svalbard, Sweden, Switzerland, Ukraine AlgeriaMoroccoTunisiaEast Aegean Is.TranscaucasusTürkiyeWest SiberiaAlbaniaAustriaBaltic StatesBelarusBelgiumBulgariaCorseCzechia-SlovakiaDenmarkFinlandFranceGermanyGreeceHungaryIcelandIrelandItalyKrymNetherlandsNorth European RussiaNorthwest European RussiaNorwayNW. Balkan Pen.PolandPortugalRomaniaSiciliaSouth European RussiaSpainSvalbardSwedenSwitzerlandUkraine AzoresCanary Is.MadeiraBalearesSardegna
Native distribution of Callitriche stagnalis, 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. Regions too small to draw at this scale are marked with a dot.
RegionTDWG codeContinent
Albania ALB EUROPE
Austria AUT
Baleares BAL
Baltic States BLT
Belarus BLR
Belgium BGM
Bulgaria BUL
Corse COR
Czechia-Slovakia CZE
Denmark DEN
Finland FIN
France FRA
Germany GER
Great Britain GRB
Greece GRC
Hungary HUN
Iceland ICE
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
Sardegna SAR
Sicilia SIC
South European Russia RUS
Spain SPA
Svalbard SVA
Sweden SWE
Switzerland SWI
Ukraine UKR
Algeria ALG AFRICA
Azores AZO
Canary Is. CNY
Madeira MDR
Morocco MOR
Tunisia TUN
East Aegean Is. EAI ASIA-TEMPERATE
Transcaucasus TCS
Türkiye TUR
West Siberia WSB

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 19 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.

  • Callitriche aestivalis Thuill.
  • Callitriche aquatica subsp. stagnalis (Scop.) Bonnier & Layens
  • Callitriche dioica Schur
  • Callitriche minor Bellynck
  • Callitriche palustris subsp. stagnalis (Scop.) Schinz & Thell.
  • Callitriche platycarpa var. serpyllifolia Kütz.
  • Callitriche stagnalis Scop.emend.Kutz
  • Callitriche stagnalis f. caespitosa Glück
  • Callitriche stagnalis f. heterophylla Glück
  • Callitriche stagnalis f. serpyllifolia (Kütz.) Lönnr.
  • Callitriche stagnalis f. submersa Glück
  • Callitriche stagnalis f. terrestris Glück
  • Callitriche stagnalis var. microphylla Kütz.
  • Callitriche stagnalis var. rivularis Kütz.
  • Callitriche stagnalis var. vulgaris Kütz.
  • Callitriche verna Savi
  • Callitriche verna var. isophylla Wimm. & Grab.
  • Stellaria stagnalis (Scop.) Kuntze
  • Stellina stagnalis (Scop.) Bubani

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.