This name is a synonym of Symphyotrichum novi-belgii (L.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 61E99E98-6A44-4641-B448-8585E0286C1F) with original publication details: 239 1836.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:180775-1.
This name was in version 1 of The Plant List, record gcc-91082.