This name is a synonym of Symphyotrichum eatonii (A.Gray) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 5D521433-20F4-42C8-9B25-DD3207164E6B) with original publication details: 194 1884.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23443-2.
This name was in version 1 of The Plant List, record gcc-68221, and has not been changed.