Callitriche palustrisL.

Narrow-fruited Water-starwortVernal water-starwortspring water-starwortvernal water-starwort

WFO wfo-0000777936 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Callitriche palustris, photographed by Yurii Basov
fig. a Yurii Basov, CC BY 4.0 / 2021-10-10 / obs. 162659095
Callitriche palustris, photographed by Yurii Basov
fig. b Yurii Basov, CC BY 4.0 / obs. 162651286
Callitriche palustris, photographed by Yurii Basov
fig. c Yurii Basov, CC BY 4.0 / obs. 162652567
Callitriche palustris, photographed by Yurii Basov
fig. d Yurii Basov, CC BY 4.0 / obs. 156880562
Callitriche palustris, photographed by Силаева Татьяна Борисовна
fig. e Силаева Татьяна Борисовна, CC0 1.0 / obs. 156940231
Callitriche palustris, photographed by Вера
fig. f Вера, CC BY 4.0 / obs. 156017402
Callitriche palustris, photographed by Евгений Егорейченков
fig. g Евгений Егорейченков, CC BY 4.0 / obs. 152853802
Callitriche palustris, photographed by Nina Filippova
fig. h Nina Filippova, CC BY 4.0 / obs. 150716249

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 129 botanical countries

Regions where Callitriche palustris is native: Afghanistan, Altay, Amur, Buryatiya, China North-Central, China South-Central, China Southeast, Chita, Inner Mongolia, Iran, Irkutsk, Japan, Kamchatka, Kazakhstan, Khabarovsk, Kirgizstan, Korea, Krasnoyarsk, Kuril Is., Magadan, Manchuria, Mongolia, Nansei-shoto, North Caucasus, Primorye, Qinghai, Sakhalin, Tadzhikistan, Taiwan, Tibet, Transcaucasus, Türkiye, Tuva, Uzbekistan, West Siberia, Yakutiya, Bangladesh, Borneo, East Himalaya, Nepal, Pakistan, Sumatera, West Himalaya, Austria, Baltic States, Belarus, Belgium, Bulgaria, Central European Russia, Corse, Czechia-Slovakia, Denmark, East European Russia, Finland, France, Germany, Great Britain, Greece, Hungary, Iceland, Ireland, Italy, Krym, Netherlands, North European Russia, Northwest European Russia, Norway, NW. Balkan Pen., Poland, Romania, Sardegna, South European Russia, Spain, Sweden, Switzerland, Ukraine, Alaska, Alberta, Aleutian Is., Arizona, British Columbia, California, Colorado, Connecticut, Delaware, Greenland, Idaho, Illinois, Iowa, Labrador, Maine, Manitoba, Maryland, Massachusetts, Mexico Gulf, Mexico Northeast, Mexico Northwest, Mexico Southwest, Michigan, Minnesota, Missouri, Montana, Nebraska, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, North Dakota, Northwest Territories, Nunavut, Oklahoma, Ontario, Oregon, Pennsylvania, Prince Edward I., Québec, Rhode I., Saskatchewan, South Dakota, Texas, Utah, Vermont, Washington, Wisconsin, Wyoming, Yukon AfghanistanAltayAmurBuryatiyaChina North-CentralChina South-CentralChina SoutheastChitaInner MongoliaIranIrkutskJapanKamchatkaKazakhstanKhabarovskKirgizstanKrasnoyarskMagadanManchuriaMongoliaNorth CaucasusPrimoryeQinghaiSakhalinTadzhikistanTaiwanTibetTranscaucasusTürkiyeTuvaUzbekistanWest SiberiaYakutiyaBangladeshBorneoEast HimalayaNepalPakistanSumateraWest HimalayaAustriaBaltic StatesBelarusBelgiumBulgariaCentral European RussiaCorseCzechia-SlovakiaDenmarkEast European RussiaFinlandFranceGermanyGreeceHungaryIcelandIrelandItalyKrymNetherlandsNorth European RussiaNorthwest European RussiaNorwayNW. Balkan Pen.PolandRomaniaSouth European RussiaSpainSwedenSwitzerlandUkraineAlaskaAlbertaArizonaBritish ColumbiaCaliforniaColoradoConnecticutGreenlandIdahoIllinoisIowaLabradorMaineManitobaMarylandMassachusettsMexico GulfMexico NortheastMexico NorthwestMexico SouthwestMichiganMinnesotaMissouriMontanaNebraskaNevadaNew BrunswickNew HampshireNew JerseyNew MexicoNew YorkNewfoundlandNorth DakotaNorthwest TerritoriesNunavutOklahomaOntarioOregonPennsylvaniaPrince Edward I.QuébecSaskatchewanSouth DakotaTexasUtahVermontWashingtonWisconsinWyomingYukon KoreaNansei-shotoSardegnaDelawareRhode I.
Native distribution of Callitriche palustris, 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
Alaska ASK NORTHERN AMERICA
Alberta ABT
Aleutian Is. ALU
Arizona ARI
British Columbia BRC
California CAL
Colorado COL
Connecticut CNT
Delaware DEL
Greenland GNL
Idaho IDA
Illinois ILL
Iowa IOW
Labrador LAB
Maine MAI
Manitoba MAN
Maryland MRY
Massachusetts MAS
Mexico Gulf MXG
Mexico Northeast MXE
Mexico Northwest MXN
Mexico Southwest MXS
Michigan MIC
Minnesota MIN
Missouri MSO
Montana MNT
Nebraska NEB
Nevada NEV
New Brunswick NBR
New Hampshire NWH
New Jersey NWJ
New Mexico NWM
New York NWY
Newfoundland NFL
North Dakota NDA
Northwest Territories NWT
Nunavut NUN
Oklahoma OKL
Ontario ONT
Oregon ORE
Pennsylvania PEN
Prince Edward I. PEI
Québec QUE
Rhode I. RHO
Saskatchewan SAS
South Dakota SDA
Texas TEX
Utah UTA
Vermont VER
Washington WAS
Wisconsin WIS
Wyoming WYO
Yukon YUK
Afghanistan AFG ASIA-TEMPERATE
Altay ALT
Amur AMU
Buryatiya BRY
China North-Central CHN
China South-Central CHC
China Southeast CHS
Chita CTA
Inner Mongolia CHI
Iran IRN
Irkutsk IRK
Japan JAP
Kamchatka KAM
Kazakhstan KAZ
Khabarovsk KHA
Kirgizstan KGZ
Korea KOR
Krasnoyarsk KRA
Kuril Is. KUR
Magadan MAG
Manchuria CHM
Mongolia MON
Nansei-shoto NNS
North Caucasus NCS
Primorye PRM
Qinghai CHQ
Sakhalin SAK
Tadzhikistan TZK
Taiwan TAI
Tibet CHT
Transcaucasus TCS
Türkiye TUR
Tuva TVA
Uzbekistan UZB
West Siberia WSB
Yakutiya YAK
Austria AUT EUROPE
Baltic States BLT
Belarus BLR
Belgium BGM
Bulgaria BUL
Central European Russia RUC
Corse COR
Czechia-Slovakia CZE
Denmark DEN
East European Russia RUE
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
Romania ROM
Sardegna SAR
South European Russia RUS
Spain SPA
Sweden SWE
Switzerland SWI
Ukraine UKR
Bangladesh BAN ASIA-TROPICAL
Borneo BOR
East Himalaya EHM
Nepal NEP
Pakistan PAK
Sumatera SUM
West Himalaya WHM

Not drawn on the map: Kuril Is., Great Britain, Aleutian Is.. We hold no public-domain boundary for these regions, so they are 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 94 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 alpina Schur
  • Callitriche anceps subsp. subanceps (Petrov) Á.Löve & D.Löve
  • Callitriche androgyna L.
  • Callitriche angustifolia Hoppe
  • Callitriche aquatica Huds.
  • Callitriche aquatica subsp. vernalis Bonnier & Layens
  • Callitriche aquatica var. cespitosa (Schultz) Willd.
  • Callitriche aquatica var. verna Willd.
  • Callitriche bengalensis Petrov
  • Callitriche bifida (L.) Morong
  • Callitriche cespitosa Schultz
  • Callitriche cuneifolia A.Braun ex Hegelm.
  • Callitriche elegans Petrov
  • Callitriche elegans f. caespitosa Petrov
  • Callitriche elegans f. heterophylla Petrov
  • Callitriche elegans f. inundata Petrov
  • Callitriche elegans f. spathulifolia Petrov
  • Callitriche elegans f. stellata Petrov
  • Callitriche elegans f. submersa Petrov
  • Callitriche elegans f. terrestris Petrov
  • Callitriche euverna Syme
  • Callitriche fallax Petrov
  • Callitriche fissa Lej.
  • Callitriche fontana Scop.

and 70 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.
  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.