This name is a synonym of Symphyotrichum oolentangiense (Riddell) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record DB01D1F1-7D1A-49B8-8367-3D0475C79A1C) with original publication details: 1215 1903.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23109-2.
This name was in version 1 of The Plant List, record gcc-32903.