This name is a synonym of Symphyotrichum praealtum (Poir.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 2F76C117-CBA5-4C75-A97F-02EB1C4915E9) with original publication details: 468 1894.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:24066-2.
This name was in version 1 of The Plant List, record gcc-72792.