⚠ Version 1 of The Plant List has been superseded.
This name is in version 1.1 of The Plant List, record tro-35164926, with some changes.
This name is a synonym of Didymodon tophaceus subsp. ehrenbergii .
The record derives from Tropicos which reports it as a synonym (record 35164926
) with original publication details: Fl. Mouss. Suisse 2: 298 298 1918.