| Name | Sphagnum dusenii Russow & Warnst. |
| Authorship | Russow & Warnst. |
| Rank | Species |
| NomenclaturalStatus | NomSuperfl |
| Placed in | Sphagnum |
| Contains | Sphagnum dusenii var. majus Cardot Sphagnum dusenii var. parvifolium Warnstorf |
| Citation | 1890 Sitzungsber. Naturf.-Ges. Dorpat 9: 99, 107 |
| Holdings | 27 Specimens held in the Harvard University Herbaria identified as Sphagnum dusenii Russow & Warnst. |
| Identification made in | [no date] (27) |