This name is a synonym of Teucrium scordium subsp. serratum (Benth.) Rech.f..
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 454188) with original publication details: Notes Roy. Bot. Gard. Edinburgh 28: 146 1968.
This name record (from WCSP) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Teucrium scordium in version 1 of The Plant List.