| Name | Polytrichastrum alpinum var. sylvaticum (Menzies) G. L. Merrill |
| Authorship | (Menzies) G. L. Merrill |
| Rank | Variety |
| Placed in | Polytrichastrum alpinum (Hedwig) G. L. Smith |
| Citation | 2006 Sida 22: 547. |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Polytrichastrum alpinum var. sylvaticum (Menzies) G. L. Merrill |
| Identification made in | [no date] (1) |