This name is a synonym of Pseudolysimachion linariifolium subsp. dilatatum (Nakai & Kitag.) D.Y. Hong.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 29207826) with original publication details: Rep. First Sci. Exped. Manchoukuo 4: 45, 93 1936.
This name was in version 1 of The Plant List, record tro-29207826, and has not been changed.