Riccia nigrellaDC.

WFO wfo-0001196755 Accepted WFO 2026-06 8 photographs CC BY

Plate 1 figs. a–h · 8 separate observations

Riccia nigrella, photographed by Rafael Medina
fig. a Rafael Medina, CC BY 4.0 / 2022-03-05 / obs. 181672679
Riccia nigrella, photographed by Trevor Van Loon
fig. b Trevor Van Loon, CC BY 4.0 / obs. 180538555
Riccia nigrella, photographed by Christian Berg
fig. c Christian Berg, CC BY 4.0 / obs. 176157396
Riccia nigrella, photographed by Christian Berg
fig. d Christian Berg, CC BY 4.0 / obs. 174585458
Riccia nigrella, photographed by Christian Berg
fig. e Christian Berg, CC BY 4.0 / obs. 174015824
Riccia nigrella, photographed by Christian Berg
fig. f Christian Berg, CC BY 4.0 / obs. 174014025
Riccia nigrella, photographed by Em Lamond
fig. g Em Lamond, CC BY 4.0 / obs. 88519110
Riccia nigrella, photographed by Ken Kellman
fig. h Ken Kellman, CC BY 4.0 / obs. 5972955

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 13 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.

  • Euriccia nigrella (DC.) Lacout.
  • Riccia aeruginosa Gasp. ex Giacom.
  • Riccia aggregata Underw.
  • Riccia minima var. major Raddi
  • Riccia nigrella f. elongata Levier ex Müll.Frib.
  • Riccia nigrella f. limicola Sim
  • Riccia nigrella f. nigrella
  • Riccia nigrella var. elongata (Levier ex Müll.Frib.) Jelenc
  • Riccia nigrella var. linearis Levier
  • Riccia nigrella var. major (Raddi) C.Massal.
  • Riccia nigrella var. nigrella
  • Riccia pearsonii Steph.
  • Riccia sorocarpa var. major (Raddi) Bisch.

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.