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 96E6AF15-56F6-42D7-B689-5141BE77F5E9) with original publication details: Sp. Pl. 875 1753.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:309934-2.
This name was in version 1 of The Plant List, record gcc-43855.