| Name | Polytrichum commune var. yukonense (Cardot & Thériot) Frye |
| Authorship | (Cardot & Thériot) Frye |
| Rank | Variety |
| Placed in | Polytrichum commune Hedwig |
| Citation | 1937. Moss Fl. N. Amer. 1: 125. |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Polytrichum commune var. yukonense (Cardot & Thériot) Frye |
| Identification made in | [no date] (1) |