| Name | Sphagnum girgensohnii var. squarrosulum Russow |
| Authorship | Russow |
| Rank | Variety |
| Placed in | Sphagnum girgensohnii Russow |
| Citation | 1865 Arch. Naturk. Liv- Ehst- Kurlands, Ser. 2, Biol. Naturk. 7: 125 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Sphagnum girgensohnii var. squarrosulum Russow |
| Identification made in | [no date] (1) |