Fissidens incurvusStarke ex Röhl.

WFO wfo-0001193555 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Fissidens incurvus, photographed by Jonathan Hughes
fig. a Jonathan Hughes, CC0 1.0 / 2022-01-23 / obs. 176942093

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.

The specimen a real sheet, in a real collection

Herbarium
The New York Botanical Garden
Accession
324943
Filed as
Fissidens incurvus var. brevifolius Renauld & Cardot
Det. by
R. A. Pursell 1974-01-01
Collected
A. B. Langlois 1886
Origin
US
The sheet
View the digitised specimen (CC BY 4.0)

A real pressed plant, in a real collection, under the accession number above. Not an illustration of one. The holding institution does not serve this sheet’s image to third parties, so there is no photograph here. The record is real and the link goes to it. Where we hold no openly licensed sheet for a species this section is simply absent, and where a sheet never recorded who determined it, that field stays empty rather than being filled in. Roughly half of all herbarium sheets never recorded a determiner, which is ordinary.

Where it actually grows measured, from 36 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low 0.5 °C 1.4 °C 6.6 °C
Warmest month, mean daily high 18.4 °C 21.4 °C 24.8 °C
Annual rainfall 615 mm 701 mm 1,322 mm
Rainfall in the driest quarter 123 mm 147 mm 253 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 36 research-grade observations of Fissidens incurvus 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 Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.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 28 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.

  • Dicranum bryoides var. nutans Gray
  • Dicranum incurvum F.Weber & D.Mohr
  • Dicranum tamarindifolium Turner
  • Fissidens bryoides subsp. haraldii (Lindb.) Podp.
  • Fissidens bryoides subsp. incurvus (Starke ex Röhl.) Bertsch
  • Fissidens bryoides subsp. tamarindifolius (Turner) Podp.
  • Fissidens bryoides var. incurvus (Starke ex Röhl.) Huebener
  • Fissidens bryoides var. nanus (Warnst.) Podp.
  • Fissidens bryoides var. tamarindifolius (Turner) Griff.
  • Fissidens haraldii (Lindb.) Limpr.
  • Fissidens inconstans var. tamarindifolius (Turner) P.de la Varde
  • Fissidens incurvus f. minimus Latzel
  • Fissidens incurvus subsp. tamarindifolius (Turner) Kindb.
  • Fissidens incurvus var. angustifolius (Lindb.) C.Hartm.
  • Fissidens incurvus var. tamarindifolius (Turner) Braithw.
  • Fissidens nanus Warnst.
  • Fissidens sardous De Not.
  • Fissidens tamarindifolius (Turner) Brid.
  • Fissidens tamarindifolius var. haraldii (Lindb.) Bizot & R.B.Pierrot
  • Fissidens viridulus subsp. incurvus (Starke ex Röhl.) Waldh.
  • Fissidens viridulus var. angustifolius Lindb.
  • Fissidens viridulus var. haraldii (Lindb.) C.E.O.Jensen
  • Fissidens viridulus var. incurvus (Starke ex Röhl.) Wilson
  • Fissidens viridulus var. tamarindifolius (Turner) Grout

and 4 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.

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.