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 C85D248E-A17E-45CB-B7F9-BF3B8B856E25) with original publication details: Prodr. 5: 234 (1836) 234 1836.
This name was in version 1 of The Plant List, record gcc-116789.