Weissia brachycarpa(Nees & Hornsch.) Jur.

Hedwig's Weissia MossHedwig's weissia moss

WFO wfo-0001161644 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 5 observations

This species has been photographed under an open licence only 5 times, 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.

Weissia brachycarpa, photographed by Christian Berg
fig. a Christian Berg, CC BY 4.0 / 2021-03-26 / obs. 119329834
Weissia brachycarpa, photographed by George Greiff
fig. b George Greiff, CC BY 4.0 / obs. 65594062
Weissia brachycarpa, photographed by Helen Waterman
fig. c Helen Waterman, CC BY 4.0 / obs. 178826444
Weissia brachycarpa, photographed by Christian Berg
fig. d Christian Berg, CC BY 4.0 / obs. 119329909
Weissia brachycarpa, photographed by Young Jun Lee
fig. e Young Jun Lee, CC BY 4.0 / obs. 185369012
Weissia brachycarpa, photographed by Jonathan Hughes
fig. f Jonathan Hughes, CC0 1.0 / obs. 111507145
Weissia brachycarpa, photographed by Young Jun Lee
fig. g Young Jun Lee, CC BY 4.0 / obs. 185369026
Weissia brachycarpa, photographed by Jonathan Hughes
fig. h Jonathan Hughes, CC0 1.0 / obs. 111507160

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
04242698
Filed as
Weissia brachycarpa (Nees & Hornsch.) Jur.
Det. by
V. E. Fedosov; O. Y. Pisarenko
Collected
V. E. Fedosov
Origin
RU
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 -10.0 °C -7.2 °C 2.1 °C
Warmest month, mean daily high 17.7 °C 21.6 °C 25.3 °C
Annual rainfall 720 mm 1,248 mm 1,606 mm
Rainfall in the driest quarter 118 mm 261 mm 311 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 36 research-grade observations of Weissia brachycarpa 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 33 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.

  • Bryum microstomum (Hedw.) Dicks.
  • Gymnostomum microstomum Hedw.
  • Gymnostomum microstomum var. brachycarpum (Nees & Hornsch.) Schimp.
  • Gymnostomum microstomum var. brevirostre (Bruch & Schimp.) Schimp.
  • Gymnostomum microstomum var. elatum (Bruch & Schimp.) Schimp.
  • Gymnostomum microstomum var. obliquum (Nees & Hornsch.) Schimp.
  • Gymnostomum obliquum (Nees & Hornsch.) Johnson
  • Gymnostomum sepincola Funck
  • Hymenostomum brachycarpum Nees & Hornsch.
  • Hymenostomum microstomum (Hedw.) Nees & Hornsch.
  • Hymenostomum microstomum f. elatum (Bruch & Schimp.) Podp.
  • Hymenostomum microstomum f. planifolium M.Fleisch.
  • Hymenostomum microstomum var. brachycarpum (Nees & Hornsch.) Huebener
  • Hymenostomum microstomum var. brevirostre Bruch & Schimp.
  • Hymenostomum microstomum var. elatum Bruch & Schimp.
  • Hymenostomum microstomum var. obliquum (Nees & Hornsch.) Huebener
  • Hymenostomum microstomum var. planifolium (M.Fleisch.) G.Roth
  • Hymenostomum obliquum Nees & Hornsch.
  • Hymenostomum planifolium Sendtn.
  • Hymenostylium microstomum (Hedw.) I.Hagen
  • Mollia microstoma (Hedw.) Lindb.
  • Mollia microstoma var. elata (Bruch & Schimp.) Braithw.
  • Mollia microstoma var. obliqua (Nees & Hornsch.) Braithw.
  • Simophyllum microstomum (Hedw.) Lindb.

and 9 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.
  3. Wikidata. common name (P1843), joined on the World Flora Online identifier (P7715). CC0. Retrieved 2026-07-13.

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.