This name is a synonym of Ajuga chamaepitys subsp. suffrutescens (Willk.) Pott.-Alap. ex Greuter & Brudet.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 5215) with original publication details: Oesterr. Bot. Z. 41: 53 1891.
This name was in version 1 of The Plant List, record kew-5215, and has not been changed.