| Name | Hygrohypnum polare var. falcatum (Bryhn) Brotherus |
| Authorship | (Bryhn) Brotherus |
| Rank | Variety |
| Placed in | Hygrohypnum polare (Lindberg) Loeske |
| Citation | 1923 Laubm. Fennoskand. 499. |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Hygrohypnum polare var. falcatum (Bryhn) Brotherus |
| Identification made in | [no date] (1) |