This name is a synonym of Symphyotrichum campestre (Nutt.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 0E1936AE-1A25-4B3D-874A-C7734DEC31B6) with original publication details: 178 1884.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23166-2.
This name was in version 1 of The Plant List, record gcc-65526.