Hyocomium armoricum(Brid.) Wijk & Margad.

WFO wfo-0001184565 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Hyocomium armoricum, photographed by George Greiff
fig. a George Greiff, CC BY 4.0 / 2021-09-12 / obs. 158577545
Hyocomium armoricum, photographed by Carminda Santos
fig. b Carminda Santos, CC BY 4.0 / obs. 110436797
Hyocomium armoricum, photographed by Helen Waterman
fig. c Helen Waterman, CC BY 4.0 / obs. 191793869
Hyocomium armoricum, photographed by Helen Waterman
fig. d Helen Waterman, CC BY 4.0 / obs. 199743258
Hyocomium armoricum, photographed by Jonathan Hughes
fig. e Jonathan Hughes, CC0 1.0 / obs. 194725886
Hyocomium armoricum, photographed by Young Jun Lee
fig. f Young Jun Lee, CC BY 4.0 / obs. 185079872
Hyocomium armoricum, photographed by Jonathan Hughes
fig. g Jonathan Hughes, CC0 1.0 / obs. 148984545
Hyocomium armoricum, photographed by Helen Waterman
fig. h Helen Waterman, CC BY 4.0 / obs. 161943927

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 165 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -2.2 °C 0.7 °C 5.1 °C
Warmest month, mean daily high 16.4 °C 18.1 °C 24.0 °C
Annual rainfall 963 mm 1,425 mm 2,135 mm
Rainfall in the driest quarter 150 mm 278 mm 346 mm

It is found where winters bring light 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 165 research-grade observations of Hyocomium armoricum 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 Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.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 6 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.

  • Hylocomium flagellare (Schimp.) Kindb.
  • Hyocomium flagellare Schimp.
  • Hyocomium flagellare var. lusitanicum Guim. & G.Roth
  • Hypnum armoricum Brid.
  • Hypnum flagellare Dicks.
  • Pleurozium flagellare (Schimp.) Kindb.

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.