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 E63624EC-D628-4213-9130-8830B9DEA49A) with original publication details: 190 1884.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23838-2.
This name was in version 1 of The Plant List, record gcc-57667.