Riccia subbifurcaWarnst. ex Croz.

WFO wfo-0001205966 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Riccia subbifurca, photographed by Andrew Thornhill
fig. a Andrew Thornhill, CC BY 4.0 / 2020-09-05 / obs. 93545778
Riccia subbifurca, photographed by Em Lamond
fig. b Em Lamond, CC BY 4.0 / obs. 88519091
Riccia subbifurca, photographed by Andrew Thornhill
fig. c Andrew Thornhill, CC BY 4.0 / obs. 88338714
Riccia subbifurca, photographed by Andrew Thornhill
fig. d Andrew Thornhill, CC BY 4.0 / obs. 87767609
Riccia subbifurca, photographed by insiderelic
fig. e insiderelic, CC0 1.0 / obs. 140586095
Riccia subbifurca, photographed by insiderelic
fig. f insiderelic, CC0 1.0 / obs. 139897711
Riccia subbifurca, photographed by insiderelic
fig. g insiderelic, CC0 1.0 / obs. 137846011
Riccia subbifurca, photographed by insiderelic
fig. h insiderelic, CC0 1.0 / obs. 140122692

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.

Where it actually grows measured, from 62 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 0.2 °C 6.5 °C 10.0 °C
Warmest month, mean daily high 19.5 °C 26.2 °C 32.1 °C
Annual rainfall 469 mm 760 mm 1,161 mm
Rainfall in the driest quarter 35 mm 77 mm 177 mm

It is found where winters are cool but frost is light or absent. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 62 research-grade observations of Riccia subbifurca that carry a coordinate, and this is the range those places actually span. The 5th and 95th percentiles are used rather than the minimum and maximum, because a single cultivated specimen in a heated conservatory should not widen a tropical plant's range to the Arctic.

This is not a hardiness zone. A USDA zone is the average annual extreme minimum temperature. The figure above is the mean daily minimum of the coldest month, which is a different quantity and is typically far warmer. Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.

Also published as 7 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 baumgartneri Schiffn.
  • Riccia oelandica C.E.O.Jensen
  • Riccia oelandica var. armata C.E.O.Jensen
  • Riccia subbifurca var. armata (C.E.O.Jensen) Damsh.
  • Riccia subbifurca var. eutricha Schiffn.
  • Riccia subbifurca var. inversa Schiffn.
  • Riccia subbifurca var. subbifurca

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.