| Name | Blechnum grandiflorum Oersted |
| Authorship | Oersted |
| Rank | Species |
| NomenclaturalStatus | Unknown |
| Placed in | Blechnum Linnaeus |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Blechnum grandiflorum Oersted |
| Identification made in | [no date] (1) |