Warnstorfia fluitans(Hedw.) Loeske

floating hook-mosswarnstorfia mosswater hook-moss

WFO wfo-0001161272 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 2 observations

This species has been photographed under an open licence only 2 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.

Warnstorfia fluitans, photographed by Helen Waterman
fig. a Helen Waterman, CC BY 4.0 / 2021-06-21 / obs. 137976401
Warnstorfia fluitans, photographed by Helen Waterman
fig. b Helen Waterman, CC BY 4.0 / obs. 138109051
Warnstorfia fluitans, photographed by Helen Waterman
fig. c Helen Waterman, CC BY 4.0 / obs. 137976380
Warnstorfia fluitans, photographed by Helen Waterman
fig. d Helen Waterman, CC BY 4.0 / obs. 169471098
Warnstorfia fluitans, photographed by Helen Waterman
fig. e Helen Waterman, CC BY 4.0 / obs. 169471132
Warnstorfia fluitans, photographed by Helen Waterman
fig. f Helen Waterman, CC BY 4.0 / obs. 169471121
Warnstorfia fluitans, photographed by Helen Waterman
fig. g Helen Waterman, CC BY 4.0 / obs. 137976350
Warnstorfia fluitans, photographed by Helen Waterman
fig. h Helen Waterman, CC BY 4.0 / obs. 169471112

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.

Also published as 234 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.

  • Amblystegium andinum Mitt.
  • Amblystegium berggrenii (C.E.O.Jensen) C.E.O.Jensen
  • Amblystegium brachycarpum H.Lindb.
  • Amblystegium fluitans (Hedw.) De Not.
  • Amblystegium fluitans f. alpinum-pennulosum Arnell
  • Amblystegium fluitans f. arnellii (Sanio) Arnell
  • Amblystegium fluitans f. falcatum (Sanio ex Lange & C.E.O.Jensen) Arnell
  • Amblystegium fluitans f. fluitans
  • Amblystegium fluitans f. paludosum (Sanio) Arnell
  • Amblystegium fluitans var. amphibium (Sanio) Lindb. & Arnell
  • Amblystegium fluitans var. arnellii (Sanio) Braithw.
  • Amblystegium fluitans var. atlanticum (Renauld) Braithw.
  • Amblystegium fluitans var. aurantiacum (Sanio) Lindb. & Arnell
  • Amblystegium fluitans var. decipiens De Not.
  • Amblystegium fluitans var. falcatum (Sanio ex Lange & C.E.O.Jensen) Braithw.
  • Amblystegium fluitans var. falcifolium (Renauld) Arnell & C.E.O.Jensen
  • Amblystegium fluitans var. flaccidum De Not.
  • Amblystegium fluitans var. holtii Sanio ex Braithw.
  • Amblystegium fluitans var. jeanbernatii (Renauld) Braithw.
  • Amblystegium fluitans var. minus De Not.
  • Amblystegium fluitans var. paludosum (Sanio) Braithw.
  • Amblystegium fluitans var. robertsiae (Renauld & Dixon) Braithw.
  • Amblystegium fluitans var. squalidum (Renauld & Dixon) Braithw.
  • Amblystegium fluitans var. submersum (Schimp.) Braithw.

and 210 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.

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. It has no native range either: Kew's checklist does not cover this taxon.