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 F9387D8B-B3B7-48B7-9DC0-15A2EC6C6D01) with original publication details: 16 1818.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:182080-1.
This name was in version 1 of The Plant List, record gcc-11604.