This name is a synonym of Lamium garganicum subsp. striatum (Sm.) Hayek.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 107470) with original publication details: Bot. J. Linn. Soc. 65: 350 1972.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:883889-1.
This name was in version 1 of The Plant List, record kew-107470, and has not been changed.