This name is a synonym of Ixeridium laevigatum (Blume) Pak & Kawano.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 18275FB4-BBBE-4D07-9247-499D43EC0F26) with original publication details: 48 1992.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:972105-1.
This name was in version 1 of The Plant List, record gcc-39674.