| Name | Sphagnum mendocinum var. robustum Warnstorf |
| Authorship | Warnstorf |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Sphagnum mendocinum Sullivant |
| Citation | 1893 Hedwigia 32: 13 |
| Holdings | 3 Specimens held in the Harvard University Herbaria identified as Sphagnum mendocinum var. robustum Warnstorf |
| Identification made in | [no date] (3) |