This name is a synonym of Isodon shikokianus (Makino) H.Hara.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 102981) with original publication details: Enum. Sperm. Jap. 1: 208 1949.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:448594-1.
This name was in version 1 of The Plant List, record kew-102981.