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 917D39A8-FFBE-480A-99E6-7E5A9119EFD9) with original publication details: 1903.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:182021-1.
This name was in version 1 of The Plant List, record gcc-87953.