This name is a synonym of Aster ovatus var. ripensis (Makino) Mot.Ito & Soejima.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record BD9EC4F1-2798-4E1E-979F-6C4718D61B23) with original publication details: 87 1953.
This name was in version 1 of The Plant List, record gcc-54208, and has not been changed.