| Name | Sphagnum medium var. purpurascens (Russow) Warnstorf |
| Authorship | (Russow) Warnstorf |
| Rank | Variety |
| Placed in | Sphagnum medium Limpricht |
| Citation | 1884 Flora 67: 599 |
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Sphagnum medium var. purpurascens (Russow) Warnstorf |
| Identification made in | [no date] (10) |