| Name | Polytrichastrum alpinum (Hedwig) G. L. Smith |
| Authorship | (Hedwig) G. L. Smith |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Polytrichastrum |
| Contains | Polytrichastrum alpinum var. septentrionale (Swartz ex Bridel) G. L. Smith Polytrichastrum alpinum var. sylvaticum (Menzies) G. L. Merrill |
| Citation | 1971 Mem. New York Bot. Gard. 21(3): 37 |
| Holdings | 310 Specimens held in the Harvard University Herbaria identified as Polytrichastrum alpinum (Hedwig) G. L. Smith |
| Identification made in | [no date] (292), 2003 (6), 2004 (1), 2005 (6), 2008 (2), 2013 (1), 2016 (2) |