Plate 1 figs. a–c · 1 observation
This species has been photographed under an open licence only 1 time, 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.
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 35 observations
| Condition | 5th percentile | Median | 95th percentile |
|---|---|---|---|
| Coldest month, mean daily low | -12.4 °C | -1.7 °C | 14.5 °C |
| Warmest month, mean daily high | 21.7 °C | 23.4 °C | 31.5 °C |
| Annual rainfall | 433 mm | 670 mm | 932 mm |
| Rainfall in the driest quarter | 8 mm | 101 mm | 159 mm |
It is found where winters bring hard frost. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 35 research-grade observations of Riccia ciliata 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 Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.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 24 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 ciliata (Hoffm.) Lacout.
- Riccia affinis Milde
- Riccia bischoffii var. subtumida Milde
- Riccia ciliaris Roth
- Riccia ciliata f. affinis (Milde) Kavina
- Riccia ciliata f. ciliata
- Riccia ciliata f. epilosa (Warnst.) Fam.
- Riccia ciliata f. incana (Heeg) Fam.
- Riccia ciliata subsp. ciliata
- Riccia ciliata subsp. intumescens (Bisch.) Kavina
- Riccia ciliata var. affinis (Milde) Zodda
- Riccia ciliata var. ciliata
- Riccia ciliata var. colorata Kny
- Riccia ciliata var. epilosa Warnst.
- Riccia ciliata var. incana (Heeg) C.Massal.
- Riccia ciliata var. intumescens Bisch.
- Riccia ciliata var. major De Not.
- Riccia ciliata var. pauciciliata Bisch.
- Riccia ciliata var. violacea Kny
- Riccia dalslandica S.W.Arnell
- Riccia intumescens (Bisch.) Underw.
- Riccia intumescens var. incana Heeg
- Riccia spinosissima Steph.
- Riccia subtumida Milde
Sourcesevery claim on this page
- World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
- 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.