Homalothecium nuttallii(Wilson) A.Jaeger

Nuttall's homalothecium moss

WFO wfo-0001183501 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Homalothecium nuttallii, photographed by Randal
fig. a Randal, CC0 1.0 / 2022-05-05 / obs. 195383706
Homalothecium nuttallii, photographed by Braden J. Judson
fig. b Braden J. Judson, CC0 1.0 / obs. 196886982
Homalothecium nuttallii, photographed by Fern
fig. c Fern, CC BY 4.0 / obs. 184965864
Homalothecium nuttallii, photographed by Randal
fig. d Randal, CC0 1.0 / obs. 183451806
Homalothecium nuttallii, photographed by Bryn
fig. e Bryn, CC BY 4.0 / obs. 177988913
Homalothecium nuttallii, photographed by Randal
fig. f Randal, CC0 1.0 / obs. 176312958
Homalothecium nuttallii, photographed by Randal
fig. g Randal, CC0 1.0 / obs. 172422826
Homalothecium nuttallii, photographed by Randal
fig. h Randal, CC0 1.0 / obs. 171924407

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 455 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -0.3 °C 2.8 °C 6.7 °C
Warmest month, mean daily high 17.4 °C 23.1 °C 29.1 °C
Annual rainfall 630 mm 1,215 mm 2,270 mm
Rainfall in the driest quarter 6 mm 87 mm 241 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 455 research-grade observations of Homalothecium nuttallii 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 Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.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 15 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.

  • Camptothecium corticola (Kindb.) Kindb.
  • Camptothecium haematidens (Kindb.) Kindb.
  • Camptothecium haematidens var. tenue Kindb.
  • Camptothecium leucodontoides Kindb.
  • Camptothecium nuttallii (Wilson) Rau & Herv.
  • Camptothecium nuttallii var. tenue (Kindb.) Renauld & Cardot
  • Homalothecium corticola Kindb.
  • Homalothecium nuttallii var. haematidens (Kindb.) Grout
  • Homalothecium nuttallii var. stoloniferum (Lesq.) L.F.Koch
  • Homalothecium nuttallii var. tenue (Kindb.) Grout
  • Hypnum haematidens Kindb.
  • Hypnum nuttallii Wilson
  • Hypnum nuttallii var. stoloniferum Lesq.
  • Leskea californica Hampe
  • Myrinia corticola (Kindb.) 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.
  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.