Atrichum angustatum, commonly known as slender starburst moss, is a species of mosses belonging to the family Polytrichaceae.
It is native to Eurasia and Northern America. It is rare in Iceland, being found at only two locations; there, it is locally listed as a vulnerable species (VU).Náttúrufræðistofnun Íslands [Icelandic Institute of Natural History] (1996). Válisti 1: Plöntur. (in Icelandic) Reykjavík: Náttúrufræðistofnun Íslands.
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