This name is a synonym of Symphyotrichum subspicatum (Nees) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record E3F596E6-CF93-47EC-B45E-003F8B63CA6E) with original publication details: 11 1834.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:272821-2.
This name was in version 1 of The Plant List, record gcc-126.