Polypodium hesperium Maxon in Proc. Biol. Soc. Wash. 13: 200. 1900 sec. Mickel & Smith 2004
- ≡Polypodium vulgare var. hesperium A.Nelson & J.F.Macbr., Bot. Gaz. 61: 30. 1916 syn. sec. Mickel & Smith 2004
- =Polypodium prolongilobum Clute, Fern Bull. 18: 97. 1910 syn. sec. Mickel & Smith 2004
- =Polypodium vulgare var. columbianum Gilbert, Working List N. Amer. Pterid. 19, 38. 1901 syn. sec. Mickel & Smith 2004