This name is a synonym of Symphyotrichum peteroanum (Phil.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record A22BA3C8-A381-43E7-B036-7FDC099DE1B8) with original publication details: Anales Univ. Chile 87 406 1894.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23922-2.
This name was in version 1 of The Plant List, record gcc-88632.