This name is a synonym of Stachys arenariiformis Rouy.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 195523) with original publication details: Fl. Bulgar. ed. 3: 967 1948.
This name was in version 1 of The Plant List, record kew-195523, and has not been changed.