This name is a synonym of Clinopodium serpyllifolium subsp. fruticosum (L.) Bräuchler.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 127220) with original publication details: Rep. Bot. Exch. Club Soc. Brit. Isles 3: 321 1913 publ. 1914.
This name was in version 1 of The Plant List, record kew-127220, and has not been changed.