| Name | Brachythecium asperrimum subsp. subasperrimum (Cardot & Thériot) Grout |
| Authorship | (Cardot & Thériot) Grout |
| Rank | Subspecies |
| Placed in | Brachythecium asperrimum (Mitten ex Müller Halle) Sullivant |
| Citation | 1928 Moss Fl. N. Amer. 3: 40 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Brachythecium asperrimum subsp. subasperrimum (Cardot & Thériot) Grout |
| Identification made in | [no date] (5) |
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