This name is a synonym of Minuartia biflora (L.) Schinz & Thell..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 6302766) with original publication details: Bot. Not. 128(4): 510 1975.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:139984-2.
This name was in version 1 of The Plant List, record tro-6302766, and has not been changed.