This name is a synonym of Symphyotrichum falcatum (Lindl. ex Lindl.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 9FF150F2-0666-449B-895E-3F5018482C5B) with original publication details: 649 1981.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:909823-1.
This name was in version 1 of The Plant List, record gcc-34160.