| Name | Athyrium angustum var. rubellum (Gilbert) Butters | 
| Authorship | (Gilbert) Butters | 
| Rank | Variety | 
| NomenclaturalStatus | NomLeg | 
| Placed in | Athyrium angustum (Willdenow) C. Presl | 
| Holdings | 6 Specimens held in the Harvard University Herbaria identified as Athyrium angustum var. rubellum (Gilbert) Butters | 
| Identification made in | [no date] (6) | 
