Atrichum angustatum
{{Short description|Species of moss}}
{{Speciesbox
| image = Atrichum angustatum or Star Moss, Lugton.JPG
| genus = Atrichum
| species = angustatum
| authority = (Brid.) Bruch & Schimp.
}}
Atrichum angustatum, commonly known as slender starburst moss,{{cite web |title=Digital Atlas of Virginia Flora |url=https://vaplantatlas.org/index.php?do=plant&plant=3981 |access-date=26 October 2024}} is a species of mosses belonging to the family Polytrichaceae.{{cite web |title=Atrichum angustatum (Brid.) Bruch & Schimp. |url=http://www.worldfloraonline.org/taxon/wfo-0001192382 |website=www.worldfloraonline.org |access-date=28 January 2021}}
It is native to Eurasia and Northern America.{{cite web |title=Atrichum angustatum Bruch & W.P.Schimper, 1844 |url=https://www.gbif.org/species/2682949 |website=www.gbif.org |access-date=28 January 2021 |language=en}} It is rare in Iceland, being found at only two locations at is locally listed as a vulnerable species (VU).Náttúrufræðistofnun Íslands [Icelandic Institute of Natural History] (1996). [http://utgafa.ni.is/valistar/valisti_1.pdf Válisti 1: Plöntur.] (in Icelandic) Reykjavík: Náttúrufræðistofnun Íslands.