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 240A20CC-4F20-4BC7-B3D0-A04E12858088) with original publication details: 1818.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:180887-1.
This name was in version 1 of The Plant List, record gcc-102985.