| Name | Sphagnum warnstorfii var. purpurascens Russow |
| Authorship | Russow |
| Rank | Variety |
| Placed in | Sphagnum warnstorfii Russow |
| Citation | 1890 Bot. Gaz. 15: 140 |
| Holdings | 9 Specimens held in the Harvard University Herbaria identified as Sphagnum warnstorfii var. purpurascens Russow |
| Identification made in | [no date] (9) |
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