This name is a synonym of Ajuga shikotanensis Miyabe & Tatew..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 5359) with original publication details: Lingnan Sci. J. 13: 135 1934.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:444645-1.
This name was in version 1 of The Plant List, record kew-5359, and has not been changed.