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 50232616) with original publication details: Fl. N.W. Coast 147 1915.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:60428352-2.
This name was in version 1 of The Plant List, record tro-50232616, and has not been changed.