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 A748EA1A-867A-43A3-94F4-74A866C9B117) with original publication details: 87 1832.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23585-2.
This name was in version 1 of The Plant List, record gcc-55262.