| Name | Adiantum pedatum f. billingsae Kittredge |
| Authorship | Kittredge |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Adiantum pedatum Linnaeus |
| GUID | urn:lsid:ipni.org:names:5012-2 |
| Citation | 1929 Amer. Fern J. 19: 56 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Adiantum pedatum f. billingsae Kittredge |
| Identification made in | [no date] (1) |