| Name | Amblystegium varium var. arsenei Thériot |
| Authorship | Thériot |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Amblystegium varium (Hedwig) Lindberg |
| Citation | 1931 Smithsonian Misc. Collect. 85 (4): 32 |
| Holdings | 4 Specimens held in the Harvard University Herbaria identified as Amblystegium varium var. arsenei Thériot |
| Identification made in | [no date] (4) |