| Name | Sphagnum squarrosum var. semi-squarrosum Russow | 
| Authorship | Russow | 
| Rank | Variety | 
| Placed in | Sphagnum squarrosum Crome | 
| Citation | 1888 Samml. Eur. Torfm. 1: n. 86, 87 | 
| Holdings | 7 Specimens held in the Harvard University Herbaria identified as Sphagnum squarrosum var. semi-squarrosum Russow | 
| Identification made in | [no date] (7) |