This name is a synonym of Nepeta supina subsp. buschii (Sosn. & Manden.) Menitsky.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 134521) with original publication details: Bot. Zhurn. S.S.S.R. 34: 287 1949.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:452345-1.
This name was in version 1 of The Plant List, record kew-134521, and has not been changed.