This name is a synonym of Pseudolysimachion linariifolium (Pall. ex Link) Holub.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 29207824) with original publication details: Jahrb. Gewächsk. 3: 35 1820.
This name was in version 1 of The Plant List, record tro-29207824.