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 CCA9EBB9-2022-4BF8-9424-74BE02346AF6) with original publication details: 2050 1803.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:181557-1.
This name was in version 1 of The Plant List, record gcc-83643.