Riccia frostiiAustin

WFO wfo-0001196750 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Riccia frostii, photographed by Юрий Данилевский (Yuriy Danilevsky)
fig. a Юрий Данилевский (Yuriy Danilevsky), CC BY 4.0 / 2021-10-31 / obs. 166597239
Riccia frostii, photographed by Tait Sougstad
fig. b Tait Sougstad, CC0 1.0 / obs. 156790274
Riccia frostii, photographed by Tait Sougstad
fig. c Tait Sougstad, CC0 1.0 / obs. 99728753
Riccia frostii, photographed by Юрий Данилевский (Yuriy Danilevsky)
fig. d Юрий Данилевский (Yuriy Danilevsky), CC BY 4.0 / obs. 87098302
Riccia frostii, photographed by Юрий Данилевский (Yuriy Danilevsky)
fig. e Юрий Данилевский (Yuriy Danilevsky), CC BY 4.0 / obs. 167585285
Riccia frostii, photographed by Юрий Данилевский (Yuriy Danilevsky)
fig. f Юрий Данилевский (Yuriy Danilevsky), CC BY 4.0 / obs. 167583537
Riccia frostii, photographed by Filicinae
fig. g Filicinae, CC0 1.0 / obs. 95839189
Riccia frostii, photographed by Tait Sougstad
fig. h Tait Sougstad, CC0 1.0 / obs. 91477853

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 12 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.

  • Riccia beckeriana Steph.
  • Riccia frostii f. angustifrons Heeg
  • Riccia frostii f. frostii
  • Riccia frostii f. latifrons Heeg
  • Riccia frostii f. major Papp, Mihai & Viţalaru
  • Riccia frostii var. major Schiffn.
  • Riccia frostii var. major Underw.
  • Riccia microspora Steph.
  • Riccia palaestina S.W.Arnell
  • Riccia sanguinea Kashyap
  • Riccia watsonii Austin
  • Ricciella beckeriana (Steph.) Casares-Gil

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.

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.