This name is a synonym of Glandularia lilacina (Greene) Umber.
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym (record 212703) with original publication details: Ann. Missouri Bot. Gard. 20: 339 1933.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:263330-2.
This name was in version 1 of The Plant List, record kew-212703, and has not been changed.