This name is a synonym of Stellaria obtusa Engelm..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 6300820) with original publication details: Bot. Gaz. 25(3): 166–167 1898.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:159532-1.
This name was in version 1 of The Plant List, record tro-6300820.