This name is a synonym of Nepeta laevigata (D.Don) Hand.-Mazz..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 134573) with original publication details: Hooker's J. Bot. Kew Gard. Misc. 3: 378 1833.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:452391-1.
This name was in version 1 of The Plant List, record kew-134573.