Lomatogonium rotatum(L.) Fernald

marsh felwort

WFO wfo-0000364648 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Lomatogonium rotatum, photographed by Aleksei Baushev
fig. a Aleksei Baushev, CC BY 4.0 / 2021-09-15 / obs. 158462075
Lomatogonium rotatum, photographed by Aleksei Baushev
fig. b Aleksei Baushev, CC BY 4.0 / obs. 158428322
Lomatogonium rotatum, photographed by Syd Cannings
fig. c Syd Cannings, CC BY 4.0 / obs. 150134953
Lomatogonium rotatum, photographed by Todd Boland
fig. d Todd Boland, CC BY 4.0 / obs. 150093501
Lomatogonium rotatum, photographed by Анна Васильченко
fig. e Анна Васильченко, CC BY 4.0 / obs. 91937819
Lomatogonium rotatum, photographed by Syd Cannings
fig. f Syd Cannings, CC BY 4.0 / obs. 89824993
Lomatogonium rotatum, photographed by Quinten Wiegersma
fig. g Quinten Wiegersma, CC BY 4.0 / obs. 49700514
Lomatogonium rotatum, photographed by Jason Grant
fig. h Jason Grant, CC BY 4.0 / obs. 48251098

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 45 botanical countries

Regions where Lomatogonium rotatum is native: Altay, Amur, Buryatiya, China North-Central, China South-Central, Chita, Inner Mongolia, Irkutsk, Kamchatka, Kazakhstan, Khabarovsk, Kirgizstan, Krasnoyarsk, Magadan, Manchuria, Mongolia, Qinghai, Sakhalin, Tuva, West Siberia, Xinjiang, Yakutiya, Iceland, North European Russia, Alaska, Alberta, British Columbia, Colorado, Greenland, Idaho, Labrador, Maine, Manitoba, Montana, New Brunswick, New Mexico, Newfoundland, Northwest Territories, Nunavut, Ontario, Québec, Saskatchewan, Utah, Wyoming, Yukon AltayAmurBuryatiyaChina North-CentralChina South-CentralChitaInner MongoliaIrkutskKamchatkaKazakhstanKhabarovskKirgizstanKrasnoyarskMagadanManchuriaMongoliaQinghaiSakhalinTuvaWest SiberiaXinjiangYakutiyaIcelandNorth European RussiaAlaskaAlbertaBritish ColumbiaColoradoGreenlandIdahoLabradorMaineManitobaMontanaNew BrunswickNew MexicoNewfoundlandNorthwest TerritoriesNunavutOntarioQuébecSaskatchewanUtahWyomingYukon
Native distribution of Lomatogonium rotatum, 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
Altay ALT ASIA-TEMPERATE
Amur AMU
Buryatiya BRY
China North-Central CHN
China South-Central CHC
Chita CTA
Inner Mongolia CHI
Irkutsk IRK
Kamchatka KAM
Kazakhstan KAZ
Khabarovsk KHA
Kirgizstan KGZ
Krasnoyarsk KRA
Magadan MAG
Manchuria CHM
Mongolia MON
Qinghai CHQ
Sakhalin SAK
Tuva TVA
West Siberia WSB
Xinjiang CHX
Yakutiya YAK
Alaska ASK NORTHERN AMERICA
Alberta ABT
British Columbia BRC
Colorado COL
Greenland GNL
Idaho IDA
Labrador LAB
Maine MAI
Manitoba MAN
Montana MNT
New Brunswick NBR
New Mexico NWM
Newfoundland NFL
Northwest Territories NWT
Nunavut NUN
Ontario ONT
Québec QUE
Saskatchewan SAS
Utah UTA
Wyoming WYO
Yukon YUK
Iceland ICE EUROPE
North European Russia RUN

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.

Flowering 96 in flower of 101 examined

Peak flowering in Jul. Each bar is the share of Lomatogonium rotatum observations in which someone actually recorded the reproductive state and found the plant in flower, not the raw number of flowering records. That distinction matters: people observe plants far more in spring than in winter, so a bare count of flowering records partly measures when people go outside. Dividing by the number examined removes that. 96 of 101 examined observations were in flower, every one of them research grade. The whisker on each bar is a 95% Wilson interval. 9 months have fewer than 5 examined observations, so no proportion is drawn for them. This is still a global aggregate and not a forecast for your garden: the same species flowers on different dates in different hemispheres. Where a species has fewer than 30 flowering records we do not draw this chart at all. Computed from 10.15468/dl.cgje2x.

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.

  • Gentiana islandica J.F.Gmel.
  • Gentiana rotata (L.) Froel.
  • Gentiana stelleriana Cham. & Schltdl.
  • Gentiana sulcata Willd.
  • Lomatogonium carinthiacum var. stellerianum (Cham. & Schltdl.) Fernald
  • Lomatogonium floribundum (Franch.) Y.Z.Zhao
  • Lomatogonium rotatum (L.) Fr. ex Nyman
  • Lomatogonium rotatum f. albiflorum Polunin
  • Lomatogonium rotatum f. albiflorum A.E.Porsild
  • Lomatogonium rotatum f. americanum (Griseb.) Fernald
  • Lomatogonium rotatum f. ovalifolium Fernald
  • Lomatogonium rotatum f. rotatum
  • Lomatogonium rotatum f. tenuifolium (Griseb.) Fernald
  • Lomatogonium rotatum f. typicum Fernald
  • Lomatogonium rotatum subsp. rotatum
  • Lomatogonium rotatum subsp. tenuifolium (Griseb.) A.E.Porsild
  • Lomatogonium rotatum var. aurantiacum Y.Z.Zhao
  • Lomatogonium rotatum var. fontanum (A.Nelson) J.S.Pringle
  • Lomatogonium stellarianum (Cham. & Schltdl.) Kostel.
  • Lomatogonium stellerianum (Cham. & Schltdl.) Kostel.
  • Lomatogonium sulcatum (Rottb.) Rchb. ex Kostel.
  • Narketis hyperborea Raf.
  • Narketis japonica Raf.
  • Narketis rotata (L.) Raf.

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.
  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.