Osmunda spectabilis Willd., Sp. Pl., ed. 4 [Willdenow] 5: 98. 1810 sec. Lehnert 2024
- ≡Osmunda regalis var. spectabilis (Willd.) A.Gray, Manual (Gray), ed. 2. 600. 1856 syn. sec. Mickel & Smith 2004
- =Osmunda mexicana Fée, Mém. Foug., 9. Cat. Foug. Mex.: 43. 1857 syn. sec. Mickel & Smith 2004
- =Osmunda palmeri A.E.Bobrov, Novosti Sist. Vyssh. Rast. 1968: 8. 1968 syn. sec. Mickel & Smith 2004