This name is a synonym of Prunella × bicolor Beck.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 165941) with original publication details: Bol. Soc. Ibér. Ci. Nat. 25: 83 1926.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:455107-1.
This name was in version 1 of The Plant List, record kew-165941.