| Grimmiaceae | |
Grimmia plagiopodia var. antarctica
| E.B. Bartram | Bryologist 60: 141 | 1957 |
| Grimmiaceae | |
Grimmia plagiopodia var. arvernica
| (H. Philib.) Boulay | Musc. France, Mousses 389 | 1884 |
| Grimmiaceae | |
Grimmia plagiopodia subsp. brandegeei
| (Austin) Kindb. | Eur. N. Amer. Bryin. 2: 231 | 1897 |
| Grimmiaceae | ** |
Grimmia plagiopodia var. longipila
| Coville ex Holz. | Bryologist 28: 32 | 1925 |
| Grimmiaceae | |
Grimmia plagiopodia var. pilifera
| Lesq. & James | Man. Mosses N. America 138 | 1884 |