| Name | Sphagnum girgensohnii var. sphaerocephalum Warnstorf |
| Authorship | Warnstorf |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Sphagnum girgensohnii Russow |
| Citation | 1893 Hedwigia 32: 15 |
| Holdings | 5 Specimens held in the Harvard University Herbaria identified as Sphagnum girgensohnii var. sphaerocephalum Warnstorf |
| Identification made in | [no date] (5) |
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