Woodsia oregana subsp. cathcartiana x Woodsia scopulina subsp. laurentiana

Woodsia oregana subsp. cathcartiana x Woodsia scopulina subsp. laurentiana is a synonym sensu Lu et al., 2019 of:

Physematium ×maxonii (R.M.Tryon) Li Bing Zhang, N.T. Lu & X.F. Gao, an accepted species name sensu Lu et al., 2019.