This name is a synonym of Isodon shikokianus var. intermedius (Kudô) Murata.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 102969) with original publication details: Lab. Sino-Jap. Prodr. 140 1929.
This name was in version 1 of The Plant List, record kew-102969, and has not been changed.