Hygrohypnum luridum(Hedw.) Jenn.

hygrohypnum moss

WFO wfo-0001184273 Accepted WFO 2026-06 8 photographs CC0 / CC BY

Plate 1 figs. a–h · 8 separate observations

Hygrohypnum luridum, photographed by Jonathan Hughes
fig. a Jonathan Hughes, CC0 1.0 / 2022-05-08 / obs. 195980916
Hygrohypnum luridum, photographed by Christian Berg
fig. b Christian Berg, CC BY 4.0 / obs. 195026040
Hygrohypnum luridum, photographed by Christian Berg
fig. c Christian Berg, CC BY 4.0 / obs. 126661026
Hygrohypnum luridum, photographed by Christian Berg
fig. d Christian Berg, CC BY 4.0 / obs. 125976576
Hygrohypnum luridum, photographed by Christian Berg
fig. e Christian Berg, CC BY 4.0 / obs. 70176684
Hygrohypnum luridum, photographed by Jonathan Hughes
fig. f Jonathan Hughes, CC0 1.0 / obs. 177674190
Hygrohypnum luridum, photographed by Jonathan Hughes
fig. g Jonathan Hughes, CC0 1.0 / obs. 122717410
Hygrohypnum luridum, photographed by Helen Waterman
fig. h Helen Waterman, CC BY 4.0 / obs. 144385184

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
04450011
Filed as
Hygrohypnum luridum (Hedw.) Jenn.
Det. by
D. W. Jamieson 1975-01-01
Collected
not recorded
Origin
not recorded
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 83 observations

Condition 5th percentile Median 95th percentile
Coldest month, mean daily low -10.2 °C -6.4 °C 0.6 °C
Warmest month, mean daily high 17.1 °C 20.8 °C 24.5 °C
Annual rainfall 799 mm 1,274 mm 1,978 mm
Rainfall in the driest quarter 109 mm 229 mm 372 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 83 research-grade observations of Hygrohypnum luridum 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 119 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.

  • Amblystegium palustre (Huds. ex Brid.) Lindb.
  • Amblystegium palustre var. hamulosum (Schimp.) Braithw.
  • Amblystegium palustre var. laxum (Schimp.) H.A.Möller
  • Amblystegium palustre var. subsphaerocarpon (Schleich. ex Brid.) Lindb.
  • Amblystegium subenerve Schimp.
  • Brachythecium integerrimum E.B.Bartram
  • Brachythecium krausei Kindb.
  • Calliergon columbicopalustre (Müll.Hal. & Kindb.) Kindb.
  • Calliergon palustre (Huds. ex Brid.) Kindb.
  • Calliergon palustre subsp. subsphaerocarpon (Schleich. ex Brid.) Kindb.
  • Calliergon pseudomontanum (Kindb.) Kindb.
  • Eurhynchium krausei (Kindb.) Kindb.
  • Hygrohypnum eugyrium var. occidentale (Cardot & Thér.) Grout
  • Hygrohypnum krausei (Kindb.) Broth. ex Paris
  • Hygrohypnum luridum f. alpinum (J.J.Amann) Podp.
  • Hygrohypnum luridum f. hamulosum (Schimp.) C.E.O.Jensen
  • Hygrohypnum luridum f. julaceum (Schimp.) C.E.O.Jensen
  • Hygrohypnum luridum f. laxum (Schimp.) C.E.O.Jensen
  • Hygrohypnum luridum f. plumulosum (J.J.Amann) Podp.
  • Hygrohypnum luridum f. prolixum (Matousch.) Podp.
  • Hygrohypnum luridum f. serratum Flowers
  • Hygrohypnum luridum f. subenerve (Schimp.) C.E.O.Jensen
  • Hygrohypnum luridum f. tenue Flowers
  • Hygrohypnum luridum subsp. pseudomontanum (Kindb.) Wijk & Margad.

and 95 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.