| Name | Brachythecium populeum var. ovatum Grout |
| Authorship | Grout |
| Rank | Variety |
| Placed in | Brachythecium populeum (Hedwig) Schimper |
| Citation | 1897 Mem. Torrey Bot. Club 6: 190 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Brachythecium populeum var. ovatum Grout |
| Identification made in | [no date] (1) |