| Name | Botrychium tenuifolium Underwood |
| Authorship | Underwood |
| Rank | Species |
| NomenclaturalStatus | NomLeg |
| Placed in | Botrychium |
| GUID | urn:lsid:ipni.org:names:35360-2 |
| Citation | 1903 Bull. Torrey Bot. Club 30: 52 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Botrychium tenuifolium Underwood |
| Identification made in | [no date] (1) |