| Name | Osmunda regalis subsp. spectabilis (Willdenow) A. Löve & D. Löve |
| Authorship | (Willdenow) A. Löve & D. Löve |
| Rank | Subspecies |
| Placed in | Osmunda regalis (Willdenow) Gray |
| Citation | 1977 Taxon 26(2/3): 324 |
| Holdings | 2 Specimens held in the Harvard University Herbaria identified as Osmunda regalis subsp. spectabilis (Willdenow) A. Löve & D. Löve |
| Identification made in | [no date] (1), 2019 (1) |
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