This name is a synonym of Stellaria borealis subsp. sitchana (Steud.) Piper & Beattie.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50232612) with original publication details: Fl. S. Calif. 133 1923.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:1173949-2.
This name was in version 1 of The Plant List, record tro-50232612, and has not been changed.