This name is a synonym of Sisyrinchium patagonicum Phil. ex Baker.
The record derives from iPlants
(data supplied on 2012-03-23)
which reports it as a synonym (record 326897) with original publication details: Revis. Gen. Pl. 2: 700 1891.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:31659-2.
This name was in version 1 of The Plant List, record kew-326897, and has not been changed.