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 B3C77B26-18D6-4803-ABF5-952343C3A224) 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:23121-2.
This name was in version 1 of The Plant List, record gcc-59277.