| Name | Polytrichum jensenii I. Hagen |
| Authorship | I. Hagen |
| Rank | Species |
| Placed in | Polytrichum |
| Citation | 1898 Meddel. Grønland. 15: 444. |
| Holdings | 15 Specimens held in the Harvard University Herbaria identified as Polytrichum jensenii I. Hagen |
| Identification made in | [no date] (15) |