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 6AFD0050-AF43-4125-B7BF-ED3B91195237) with original publication details: 238 1836.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23828-2.
This name was in version 1 of The Plant List, record gcc-70326.