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 D38C2B30-1C34-4296-82DB-6590B011355E) with original publication details: Encycl. (Lamarck) 1(1) 306 1783.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:272848-2.
This name was in version 1 of The Plant List, record gcc-76853.