Cyathea bicrenata Liebm., Kongel. Danske Vidensk. Selsk. Skr., Naturvidensk. Math. Afd. ser. 5, 1: 289. 1849 sec. Mickel & Smith 2004
- ≡Alsophila bicrenata (Liebm.) E.Fourn., Mexic. Pl. 1: 134. 1872 syn. sec. Mickel & Smith 2004
- ≡Trichipteris bicrenata (Liebm.) R.M.Tryon, Contr. Gray Herb. 200: 44. 1970 syn. sec. Mickel & Smith 2004
- =Alsophila scabriuscula Maxon, Proc. Biol. Soc. Washington 32: 125. 1919 syn. sec. Mickel & Smith 2004
- =Cyathea scabriuscula Domin, Acta Bot. Bohem. 9: 156. 1930 syn. sec. ???
- =Trichipteris scabriuscula (Maxon) R.M.Tryon, Contr. Gray Herb. 200: 44. 1970 syn. sec. The Plant List 2013