| Name | Sphagnum mexicanum var. squarrulosum (Warnstorf) Warnstorf |
| Authorship | (Warnstorf) Warnstorf |
| Rank | Variety |
| Placed in | Sphagnum mexicanum Mitten |
| Citation | 1911 Pflanzenr. [Engler] 51: 145 (Sphagnol. Univ. 145) |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Sphagnum mexicanum var. squarrulosum (Warnstorf) Warnstorf |
| Identification made in | [no date] (2) |