Woodsia pusilla var. cathcartiana (B.L. Robinson) T.M.C. Taylor

Woodsia pusilla var. cathcartiana (B.L. Robinson) T.M.C. Taylor 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.