| Name | Osmunda regalis f. nana Fernald |
| Authorship | Fernald |
| Rank | Forma |
| NomenclaturalStatus | NomLeg |
| Placed in | Osmunda regalis (Willdenow) Gray |
| GUID | urn:lsid:ipni.org:names:287481-2 |
| Citation | 1949 Rhodora 51: 103 |
| Holdings | 1 Specimen held in the Harvard University Herbaria identified as Osmunda regalis f. nana Fernald |
| Identification made in | [no date] (1) |
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