This name is a synonym of Symphyotrichum georgianum (Alexander) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record FF41FA68-4192-422B-AD99-15964228EED5) with original publication details: Brittonia 29(2): 218 1977.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23902-2.
This name was in version 1 of The Plant List, record gcc-11574, and has not been changed.