This name is a synonym of Symphyotrichum eulae (Shinners) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 04C44264-55B3-4B29-8768-54D686740AC1) with original publication details: Field & Lab. 18 35 1950.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23409-2.
This name was in version 1 of The Plant List, record gcc-45752, and has not been changed.