Stuckenia filiformis(Pers.) Börner

Threadleaf-pondweedfineleaf pondweed

WFO wfo-0000771225 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 5 observations

This species has been photographed under an open licence only 5 times, so some figures below are different views of the same plant, taken on the same day, rather than different individuals. They are usually different parts of it: the leaf, the flower, the bark.

Stuckenia filiformis, photographed by Nicolás Lavandero
fig. a Nicolás Lavandero, CC BY 4.0 / 2022-04-04 / obs. 187381966
Stuckenia filiformis, photographed by Reuven Martin
fig. b Reuven Martin, CC0 1.0 / obs. 46004721
Stuckenia filiformis, photographed by Bev McBride
fig. c Bev McBride, CC0 1.0 / obs. 45413920
Stuckenia filiformis, photographed by Summit Metro Parks
fig. d Summit Metro Parks, CC BY 4.0 / obs. 46604266
Stuckenia filiformis, photographed by Nicolás Lavandero
fig. e Nicolás Lavandero, CC BY 4.0 / obs. 187381990
Stuckenia filiformis, photographed by Reuven Martin
fig. f Reuven Martin, CC0 1.0 / obs. 46004725
Stuckenia filiformis, photographed by Summit Metro Parks
fig. g Summit Metro Parks, CC BY 4.0 / obs. 46604260
Stuckenia filiformis, photographed by Matt Bowser
fig. h Matt Bowser, CC BY 4.0 / obs. 26001006

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 108 botanical countries

Regions where Stuckenia filiformis is native: Socotra, Afghanistan, Altay, Buryatiya, China North-Central, China South-Central, Chita, Inner Mongolia, Iran, Irkutsk, Kamchatka, Khabarovsk, Kirgizstan, Krasnoyarsk, Kuril Is., Magadan, Mongolia, Palestine, Qinghai, Sakhalin, Tadzhikistan, Transcaucasus, Türkiye, Tuva, Uzbekistan, West Siberia, Xinjiang, Yakutiya, East Himalaya, Nepal, Pakistan, West Himalaya, Austria, Baltic States, Belarus, Central European Russia, Denmark, East European Russia, Finland, Føroyar, France, Germany, Great Britain, Hungary, Iceland, Ireland, Italy, Netherlands, North European Russia, Northwest European Russia, Norway, NW. Balkan Pen., Poland, Sicilia, Spain, Sweden, Switzerland, Ukraine, Alaska, Alberta, Aleutian Is., Arizona, British Columbia, California, Colorado, Greenland, Idaho, Iowa, Labrador, Maine, Manitoba, Michigan, Minnesota, Montana, Nebraska, Nevada, New Brunswick, New Hampshire, New Jersey, New Mexico, New York, Newfoundland, North Dakota, Northwest Territories, Nova Scotia, Nunavut, Ohio, Ontario, Oregon, Pennsylvania, Prince Edward I., Québec, Saskatchewan, South Dakota, Utah, Vermont, Washington, Wisconsin, Wyoming, Yukon, Argentina Northeast, Argentina Northwest, Argentina South, Bolivia, Chile Central, Ecuador, Haiti, Peru AfghanistanAltayBuryatiyaChina North-CentralChina South-CentralChitaInner MongoliaIranIrkutskKamchatkaKhabarovskKirgizstanKrasnoyarskMagadanMongoliaPalestineQinghaiSakhalinTadzhikistanTranscaucasusTürkiyeTuvaUzbekistanWest SiberiaXinjiangYakutiyaEast HimalayaNepalPakistanWest HimalayaAustriaBaltic StatesBelarusCentral European RussiaDenmarkEast European RussiaFinlandFranceGermanyHungaryIcelandIrelandItalyNetherlandsNorth European RussiaNorthwest European RussiaNorwayNW. Balkan Pen.PolandSiciliaSpainSwedenSwitzerlandUkraineAlaskaAlbertaArizonaBritish ColumbiaCaliforniaColoradoGreenlandIdahoIowaLabradorMaineManitobaMichiganMinnesotaMontanaNebraskaNevadaNew BrunswickNew HampshireNew JerseyNew MexicoNew YorkNewfoundlandNorth DakotaNorthwest TerritoriesNova ScotiaNunavutOhioOntarioOregonPennsylvaniaPrince Edward I.QuébecSaskatchewanSouth DakotaUtahVermontWashingtonWisconsinWyomingYukonArgentina NortheastArgentina NorthwestArgentina SouthBoliviaChile CentralEcuadorHaitiPeru Føroyar
Native distribution of Stuckenia filiformis, 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
Greenland GNL
Idaho IDA
Iowa IOW
Labrador LAB
Maine MAI
Manitoba MAN
Michigan MIC
Minnesota MIN
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
Nova Scotia NSC
Nunavut NUN
Ohio OHI
Ontario ONT
Oregon ORE
Pennsylvania PEN
Prince Edward I. PEI
Québec QUE
Saskatchewan SAS
South Dakota SDA
Utah UTA
Vermont VER
Washington WAS
Wisconsin WIS
Wyoming WYO
Yukon YUK
Afghanistan AFG ASIA-TEMPERATE
Altay ALT
Buryatiya BRY
China North-Central CHN
China South-Central CHC
Chita CTA
Inner Mongolia CHI
Iran IRN
Irkutsk IRK
Kamchatka KAM
Khabarovsk KHA
Kirgizstan KGZ
Krasnoyarsk KRA
Kuril Is. KUR
Magadan MAG
Mongolia MON
Palestine PAL
Qinghai CHQ
Sakhalin SAK
Tadzhikistan TZK
Transcaucasus TCS
Türkiye TUR
Tuva TVA
Uzbekistan UZB
West Siberia WSB
Xinjiang CHX
Yakutiya YAK
Austria AUT EUROPE
Baltic States BLT
Belarus BLR
Central European Russia RUC
Denmark DEN
East European Russia RUE
Finland FIN
Føroyar FOR
France FRA
Germany GER
Great Britain GRB
Hungary HUN
Iceland ICE
Ireland IRE
Italy ITA
Netherlands NET
North European Russia RUN
Northwest European Russia RUW
Norway NOR
NW. Balkan Pen. YUG
Poland POL
Sicilia SIC
Spain SPA
Sweden SWE
Switzerland SWI
Ukraine UKR
Argentina Northeast AGE SOUTHERN AMERICA
Argentina Northwest AGW
Argentina South AGS
Bolivia BOL
Chile Central CLC
Ecuador ECU
Haiti HAI
Peru PER
East Himalaya EHM ASIA-TROPICAL
Nepal NEP
Pakistan PAK
West Himalaya WHM
Socotra SOC AFRICA

Not drawn on the map: Socotra, 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 60 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.

  • Coleogeton filiformis (Pers.) Les & R.R.Haynes
  • Coleogeton filiformis subsp. alpinus (Blytt) Les & R.R.Haynes
  • Coleogeton filiformis subsp. occidentalis (J.W.Robbins) Les & R.R.Haynes
  • Potamogeton applanatus Y.D.Chen
  • Potamogeton aulacophyllus K.Schum.
  • Potamogeton austrosibiricus Kaschina
  • Potamogeton fasciculatus Wolfg.
  • Potamogeton filifomirs var. rivicolus (Hagstr.) Hagstr.
  • Potamogeton filiformis Pers.
  • Potamogeton filiformis f. alpinus (Blytt) Hagstr.
  • Potamogeton filiformis f. crinisimilis Hagstr.
  • Potamogeton filiformis f. elongatus Baagøe ex G.Fisch.
  • Potamogeton filiformis f. fasciculatus (Wolfg.) Tiselius
  • Potamogeton filiformis f. fluviatilis (G.Fisch.) G.Fisch.
  • Potamogeton filiformis f. linipes Hagstr.
  • Potamogeton filiformis f. luxuriosus Hagstr.
  • Potamogeton filiformis f. major Tiselius
  • Potamogeton filiformis f. polaris Hagstr.
  • Potamogeton filiformis f. rivicolus Hagstr.
  • Potamogeton filiformis subsp. juncifolius (A.Kern. ex C.Fritsch) Asch. & Graebn.
  • Potamogeton filiformis var. alpinus (Blytt) Asch. & Graebn.
  • Potamogeton filiformis var. alpinus (Blytt) Almq.
  • Potamogeton filiformis var. applanatus (Y.D.Chen) Q.Y.Li
  • Potamogeton filiformis var. austrosibiricus (Kaschina) Czepinoga

and 36 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.