| Name | Polytrichum strictum Menzies ex Bridel | 
| Authorship | Menzies ex Bridel | 
| Rank | Species | 
| Placed in | Polytrichum | 
| Holdings | 10 Specimens held in the Harvard University Herbaria identified as Polytrichum strictum Menzies ex Bridel | 
| Identification made in | [no date] (5), 2003 (1), 2004 (1), 2005 (2), 2016 (1) |