This name is a synonym of Isodon umbrosus (Maxim.) H.Hara.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 103057) with original publication details: J. Jap. Bot. 47: 63 1972.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:883883-1.
This name was in version 1 of The Plant List, record kew-103057, and has not been changed.