⚠ Version 1 of The Plant List has been superseded.
This name record (from Tropicos) is not included in version 1.1 of The Plant List. It is possible the same name is included from a different data source, to check this you can search for Hypnum alpinum in version 1.1 of The Plant List.
This name is a synonym of Brachythecium plumosum .
The record derives from Tropicos which reports it as a synonym (record 35101885
) with original publication details: Muscol. Hibern. Spic. 192 192 1804.