Megalastrum pulverulentum (Poir.) A.R.Sm. & R.C.Moran, Amer. Fern J. 77(4): 129. 1988 sec. Mickel & Smith 2004
- ≡Polypodium pulverulentum Poir., Encycl. [J. Lamarck & al.] 5: 555. 1804 syn. sec. The Plant List 2013
- ≡Ctenitis pulverulenta (Poir.) Copel., Gen. Fil. [Copeland] 124. 1947 syn. sec. Mickel & Smith 2004
- =Polypodium karstenianum Klotzsch, Linnaea 20(4): 390. 1847 syn. sec. The Plant List 2013
- =Dryopteris karsteniana Hieron., Hedwigia 46: 348. 1907 syn. sec. The Plant List 2013
- =Ctenitis karsteniana (Klotzsch) Vareschi, Fl. Venez. 1(1): 405. 1969 syn. sec. The Plant List 2013