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 88F75733-524D-4F57-A9E7-046A0EE4344B) with original publication details: Bull. Torrey Bot. Club 74 143 1947.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23277-2.
This name was in version 1 of The Plant List, record gcc-2419.