| Name | Botrychium obliquum var. elongatum O. L. Gilbert |
| Authorship | O. L. Gilbert |
| Rank | Variety |
| NomenclaturalStatus | NomLeg |
| Placed in | Botrychium obliquum Muhlenberg |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Botrychium obliquum var. elongatum O. L. Gilbert |
| Identification made in | [no date] (2) |
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