This name is a synonym of Stachys arvensis (L.) L..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 209212) with original publication details: Fl. Portug. 1: 102 1809.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:461872-1.
This name was in version 1 of The Plant List, record kew-209212, and has not been changed.