This name is a synonym of Nepeta italica subsp. cadmea (Boiss.) A.L.Budantsev.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 134489) with original publication details: Diagn. Pl. Orient. 5: 21 1844.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:452313-1.
This name was in version 1 of The Plant List, record kew-134489, and has not been changed.