This name is a synonym of Stachys byzantina K.Koch.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym and as an illegitimate name (record 195243) with original publication details: Icon. Pl. Rar. 1: 11, t. 107 1787.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:459675-1.
This name was in version 1 of The Plant List, record kew-195243.