This name is a synonym of Symphyotrichum cordifolium (L.) G.L.Nesom.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50096998) with original publication details: Bull. Torrey Bot. Club 20(6): 255 1893.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23662-2.
This name was in version 1 of The Plant List, record tro-50096998.