| Name | Sphagnum compactum var. squarrosum (Russow) Warnstorf |
| Authorship | (Russow) Warnstorf |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Sphagnum compactum de Candolle |
| Citation | 1890 Bot. Gaz. 15: 226 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Sphagnum compactum var. squarrosum (Russow) Warnstorf |
| Identification made in | [no date] (8), 1904 (2) |