Synonyms
Struthiopteris underwoodiana Broadh.
Lomariocycas insularis (C.V.Morton & Lellinger) Gasper & A.R.Sm.
Blechnum ekmanii Brause
Blechnum insularum C.V.Morton & Lellinger
Blechnum underwoodianum var. ekmanii (Brause) C.V.Morton & Lellinger
Lomariocycas underwoodiana (Broadh.) Gasper & A.R.Sm.