Paludella squarrosa(Hedw.) Brid.

angled paludella moss

WFO wfo-0001147301 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Paludella squarrosa, photographed by J Straka
fig. a J Straka, CC BY 4.0 / 2021-07-31 / obs. 151884930
Paludella squarrosa, photographed by Ditte Grube Barild
fig. b Ditte Grube Barild, CC BY 4.0 / obs. 34641638
Paludella squarrosa, photographed by Jason Grant
fig. c Jason Grant, CC BY 4.0 / obs. 23877342
Paludella squarrosa, photographed by Wouter Koch
fig. d Wouter Koch, CC0 1.0 / obs. 4872530
Paludella squarrosa, photographed by Brandon Corder
fig. e Brandon Corder, CC BY 4.0 / obs. 161121190
Paludella squarrosa, photographed by Павлик Лисицын
fig. f Павлик Лисицын, CC BY 4.0 / obs. 104352552
Paludella squarrosa, photographed by Ditte Grube Barild
fig. g Ditte Grube Barild, CC BY 4.0 / obs. 55298779
Paludella squarrosa, photographed by Ditte Grube Barild
fig. h Ditte Grube Barild, CC BY 4.0 / obs. 54694854

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 367 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -26.6 °C -13.5 °C -3.0 °C
Warmest month, mean daily high 12.8 °C 20.0 °C 23.6 °C
Annual rainfall 500 mm 747 mm 1,700 mm
Rainfall in the driest quarter 52 mm 118 mm 260 mm

It is found where winters are arctic. This is not care advice and it is not a forecast. It is a measurement: we sampled the climate at every one of the 367 research-grade observations of Paludella squarrosa 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 Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.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.

  • Bryum squarrosum Hedw.
  • Hypnum paludella F.Weber & D.Mohr
  • Hypnum squarrosum (Hedw.) F.Weber & D.Mohr
  • Meesia squarrosa (Hedw.) Wahlenb.
  • Orthopyxis squarrosa (Hedw.) P.Beauv.
  • Paludella squarrosa f. leptocarpa I.Hagen
  • Pohlia squarrosa (Hedw.) Spreng.

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.