This name is a synonym of Stellaria umbellata Turcz..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 6301094) with original publication details: Svensk Bot. Tidskr. 50: 114 1956.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:244300-2.
This name was in version 1 of The Plant List, record tro-6301094, and has not been changed.