This name is a synonym of Symphyotrichum cordifolium (L.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 7326B139-FD94-4B16-B43B-15A9F0D9D4F0) with original publication details: Brittonia 32 249 1980.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23267-2.
This name was in version 1 of The Plant List, record gcc-11619.