This name is a synonym of Symphyotrichum novi-belgii var. elodes (Torr. & A.Gray) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 3A98A7F8-9E72-42CE-BF48-C5CE04E588D6) with original publication details: 190 1884.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23827-2.
This name was in version 1 of The Plant List, record gcc-65305, and has not been changed.