Synonyms
Schizocaena alternans (Hook.) J.Sm.
Hemitelia alternans Hook.
Amphicosmia alternans (Hook.) T.Moore
Cyathea janseniana Domin
Polypodium alternans Wall.
Alsophila alternans (Hook.) Hook.
Polypodium impuber Roxb.
Cyathea alternans (Hook.) C.Presl
Alsophila janseniana Alderw.
Cyathea lobbiana Hook.
Cyathea sarawakensis Hook.