This name is a synonym of Isodon megathyrsus (Diels) H.Hara.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 102984) with original publication details: J. Arnold Arbor. 69: 375 1988.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:954727-1.
This name was in version 1 of The Plant List, record kew-102984.