This name is a synonym of Symphyotrichum ontarionis (Wiegand) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 4A93A4B9-3B7A-4C63-9AF5-0B746AB1E9A7) with original publication details: J. Wash. Acad. Sci. 21 327 1931.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:289882-2.
This name was in version 1 of The Plant List, record gcc-6161.