This name is a synonym of Symphyotrichum × batesii (Rydb.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 72657963-6D53-4E61-A496-3B305D9D6094) with original publication details: Trans. Kansas Acad. Sci. 42 138 1940.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23382-2.
This name was in version 1 of The Plant List, record gcc-31962.