| Name | Sphagnum medium var. virescens Warnstorf |
| Authorship | Warnstorf |
| Rank | Variety |
| Placed in | Sphagnum medium Limpricht |
| Citation | 1888 Samml. Eur. Torfm. 1: n. 15, 16 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Sphagnum medium var. virescens Warnstorf |
| Identification made in | [no date] (1) |