Woodsia oregana subsp. cathcartiana (B.L. Robinson) Windham

Woodsia oregana subsp. cathcartiana (B.L. Robinson) Windham is a synonym sensu FNA Ed. Comm., 1993 of:

Physematium oreganum subsp. cathcartianum (B.L. Robinson) Li Bing Zhang, N.T. Lu & X.F. Gao, an accepted subspecies name sensu Lu et al., 2019.