This name is a synonym of Lamium bifidum Cirillo.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 107427) with original publication details: Fl. Sicul. Prodr. 2: 97 1828.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:448823-1.
This name was in version 1 of The Plant List, record kew-107427.