Hygrohypnum styriacum, commonly known as snow brook-moss or hygrohypnum moss"PLANTS Profile: Hygrohypnum styriacum" US Department of Agriculture. Retrieved 19 May 2008. is a species of moss found in the Northern Hemisphere.
It is present in GreenlandGoldberg, Irena (2003) "Mosses of Greenland: List of Species in the Herbarium C" (pdf) Botanical Museum and Library, University of Copenhagen. Retrieved 18 May 2008. Iceland, Norway, Poland, Slovakia, Sweden, Scotland"Hygrohypnum styriacum: (Hygrohypnum Moss)" ZipcodeZoo. Retrieved 19 May 2008. and SpainRams, S. & Oliván, G. (2006) New national and regional bryophyte records: Hygrohypnum styriacum. Journal of Bryology 28(2): 151 (Andalusia, Sierra Nevada). The Scottish population is restricted to Coire an t-Sneachda in the Cairngorm mountains where it was first discovered in 1989.Rothero, Gordon "Bryophytes", in Shaw, Philip and Thompson, Des (eds.) (2006) The Nature of the Cairngorms: Diversity in a changing environment. Edinburgh. The Stationery Office. . p. 200.
The species occupies Arctic and alpine habitats.It is specifically identified as an "Arctic–alpine" species by Rothero (2006) p. 209 although the Biodiversity Scotland database describes it as "montane". It is classified as "Imperiled" in British Columbia"Appendix: Species at risk" (pdf) davidsuzuki.org Retrieved 19 May 2008. and in Britain is considered to be "Critically Endangered"."Threatened Bryophyte Database (TBDB)" British Bryophyte Society. Retrieved 17 May 2008.
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