This name is a synonym of Nepeta nepetella subsp. murcica (Guirão ex Willk.) Aedo.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 134412) with original publication details: Acta Bot. Malac. 16: 353 1991.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:967186-1.
This name was in version 1 of The Plant List, record kew-134412.