| Name | Athyrium filix-femina f. confertum (Butters) Fernald |
| Authorship | (Butters) Fernald |
| Rank | Forma |
| Placed in | Athyrium filix-femina (Linnaeus) Roth |
| Citation | 1946 Rhodora 48(574): 389 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Athyrium filix-femina f. confertum (Butters) Fernald |
| Identification made in | [no date] (1) |
Copyright © 2013 The President and Fellows of Harvard College | Accessibility