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 21828702-FCEA-4EE4-A80F-A6CF54CB7E8A) with original publication details: Encycl. (Lamarck) 1(1) 307 1783.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:272838-2.
This name was in version 1 of The Plant List, record gcc-105995.