| Name | Sphagnum squarrosum var. subsquarrosum Russow |
| Authorship | Russow |
| Rank | Variety |
| Placed in | Sphagnum squarrosum Crome |
| Citation | 1888 Hedwigia 27: 271 |
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Sphagnum squarrosum var. subsquarrosum Russow |
| Identification made in | [no date] (6) |