| 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) | 
