| Name | Sphagnum cuspidatum var. plumosum Nees & Hornschuch |
| Authorship | Nees & Hornschuch |
| Rank | Variety |
| Placed in | Sphagnum cuspidatum Renauld |
| Citation | 1823 Bryol. Germ. 1: 24 |
| Holdings | 11 Specimens held in the Harvard University Herbaria identified as Sphagnum cuspidatum var. plumosum Nees & Hornschuch |
| Identification made in | [no date] (11) |