Riccia fluitansL.

Crystalwortfloating crystalwortslender riccia

WFO wfo-0001196749 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Riccia fluitans, photographed by Ryan Sorrells
fig. a Ryan Sorrells, CC BY 4.0 / 2022-06-12 / obs. 205836524
Riccia fluitans, photographed by Ryan Sorrells
fig. b Ryan Sorrells, CC BY 4.0 / obs. 205631005
Riccia fluitans, photographed by chiuluan
fig. c chiuluan, CC BY 4.0 / obs. 198425930
Riccia fluitans, photographed by chiuluan
fig. d chiuluan, CC BY 4.0 / obs. 198429203
Riccia fluitans, photographed by chiuluan
fig. e chiuluan, CC BY 4.0 / obs. 190384552
Riccia fluitans, photographed by chiuluan
fig. f chiuluan, CC BY 4.0 / obs. 190584941
Riccia fluitans, photographed by chiuluan
fig. g chiuluan, CC BY 4.0 / obs. 188788488
Riccia fluitans, photographed by Aalbert Rebergen
fig. h Aalbert Rebergen, CC BY 4.0 / obs. 186670589

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 31 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.

  • Fysonia tenera Kashyap
  • Riccardia dichotoma Gray
  • Riccia canaliculata f. fluitans (L.) Fam.
  • Riccia canaliculata var. fluitans (L.) Lindb.
  • Riccia centrifuga Arnell
  • Riccia eudichotoma var. fluitans (L.) Bisch.
  • Riccia fluitans f. aquatica (T.Jensen) C.E.O.Jensen
  • Riccia fluitans f. fluitans
  • Riccia fluitans f. gracilis Bouvet
  • Riccia fluitans f. lata Underw.
  • Riccia fluitans f. limicola Sim
  • Riccia fluitans f. minor (Lindenb.) Nees
  • Riccia fluitans f. terrestris Underw.
  • Riccia fluitans subf. lata (Gottsche, Lindenb. & Nees) Kavina
  • Riccia fluitans subsp. fluitans
  • Riccia fluitans var. aquatica T.Jensen
  • Riccia fluitans var. lata Gottsche, Lindenb. & Nees
  • Riccia fluitans var. minor Lindenb.
  • Riccia fluitans var. nana Grognot
  • Riccia fluitans var. pallida Grognot ex Roum.
  • Riccia fluitans var. viridescens Roum.
  • Riccia media Klingm.
  • Ricciella fluitans (L.) A.Braun
  • Ricciella fluitans f. fluitans

and 7 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.