This name is a synonym of Symphyotrichum lanceolatum (Willd.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 53D98E54-52AA-4E7D-B280-3B21CC145AE1) with original publication details: 240 1836.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23120-2.
This name was in version 1 of The Plant List, record gcc-31919.