This name is a synonym of Symphyotrichum ascendens (Lindl.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record FE2A9DEC-EDEB-4025-9EFB-2E34390A12FC) with original publication details: Pittonia 4 214 1900.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23090-2.
This name was in version 1 of The Plant List, record gcc-25012.