Athyrium filix-femina subsp. sitchense (Ruprecht) Tzvelev
Athyrium filix-femina subsp. sitchense (Ruprecht) Tzvelev is a synonym sensu IPNI of:
Athyrium filix-femina var. cyclosorum (Ruprecht) T. Moore, an accepted variety name sensu FNA Ed. Comm., 1993.