Pronephrium penangianum (Hook.) Holttum is a synonym of Polypodium penangianum Hook.

This name is a synonym of Polypodium penangianum Hook..

The record derives from Tropicos which reports it as a synonym (record 26600291) with original publication details: Blumea 20(1): 110 110 1972.

Full publication details for this name can be found in IPNI: urn:lsid:ipni.org:names:1019680-2.