| Name | Sphagnum fuscum var. fusco-viride Warnstorf |
| Authorship | Warnstorf |
| Rank | Variety |
| Placed in | Sphagnum fuscum (Schimper) H. Klinggräff |
| Citation | 1890 Bot. Gaz. 15: 135 |
| Holdings | 9 Specimens held in the Harvard University Herbaria identified as Sphagnum fuscum var. fusco-viride Warnstorf |
| Identification made in | [no date] (9) |