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 BC4DFC53-8930-4C03-8FA5-AB4BF42ECC2D) with original publication details: 1381 1933.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:181291-1.
This name was in version 1 of The Plant List, record gcc-107972, and has not been changed.