Dryopteris spinulosa var. americana (Fischer ex Kunze) Fernald p.p.

Dryopteris spinulosa var. americana (Fischer ex Kunze) Fernald p.p. is a synonym sensu FNA Ed. Comm., 1993 of:

Dryopteris campyloptera (Kunze) Clarkson, an accepted species name sensu FNA Ed. Comm., 1993.