Campylopus pyriformis (campylopus moss)

Plate 1 figs. a–h · 8 separate observations

Campylopus pyriformis, photographed by Thomas Gyselinck — fig. a Thomas Gyselinck, CC BY 4.0 / 2022-01-16 / obs. 176301397

Campylopus pyriformis, photographed by Stephen James McWilliam — fig. b Stephen James McWilliam, CC0 1.0 / obs. 58289150

Campylopus pyriformis, photographed by Helen Waterman — fig. c Helen Waterman, CC BY 4.0 / obs. 177419982

Campylopus pyriformis, photographed by Jonathan Hughes — fig. f Jonathan Hughes, CC0 1.0 / obs. 190436923

Campylopus pyriformis, photographed by James Clow — fig. g James Clow, CC0 1.0 / obs. 117205554

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 87 observations

Condition	5th percentile	Median	95th percentile
Coldest month, mean daily low	-4.3 °C	0.4 °C	3.7 °C
Warmest month, mean daily high	17.5 °C	20.6 °C	23.9 °C
Annual rainfall	625 mm	860 mm	1,449 mm
Rainfall in the driest quarter	126 mm	173 mm	304 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 87 research-grade observations of Campylopus pyriformis 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 Reading one as the other would place a plant several zones too warm, so we do not publish a hardiness zone, because we do not have one.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 87 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.

Campylopus amabilis (Müll.Hal.) Kindb.
Campylopus aureoviridis (Müll.Hal.) Schimp. ex Paris
Campylopus azoricus Mitt.
Campylopus bellii R.Br.bis
Campylopus beyrichianus Duby
Campylopus beyrichianus var. elatior (Hampe) Paris
Campylopus beyrichianus var. polysetus (Hampe) A.Jaeger
Campylopus blindioides Broth.
Campylopus calvatus Mitt. ex Dixon
Campylopus calvatus Dixon
Campylopus canaliculatus (Geh. & Hampe) Kindb.
Campylopus distractus (Müll.Hal.) Müll.Hal.
Campylopus erythrodontius A.Jaeger
Campylopus fallaciosus (Thér.) Podp.
Campylopus fibrobasius Dusén
Campylopus flexuosus subsp. pyriformis (Schultz) Dixon
Campylopus flexuosus subsp. torfaceus (Bruch & Schimp.) Boulay
Campylopus flexuosus var. azoricus (Mitt.) Thér.
Campylopus flexuosus var. muelleri (Jur.) Dixon
Campylopus fragilis f. muelleri (Jur.) Smirnova
Campylopus fragilis var. muelleri (Jur.) Wijk & Margad.
Campylopus fragilis var. pyriformis (Schultz) Agst.
Campylopus glaucoviridis (Müll.Hal.) Paris
Campylopus kunkelii E.B.Bartram

and 63 more.

Sourcesevery claim on this page

World Flora Online Plant List. accepted name, authority, classification. CC0. Retrieved 2026-07-12.
iNaturalist. photographs and flowering annotations, CC0 / CC BY / CC BY-SA only. per photograph. Retrieved 2026-06-27.
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.