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 1892432B-518D-491A-BE6E-B70A40250025) with original publication details: Bull. Torrey Bot. Club 37 136 1910.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23720-2.
This name was in version 1 of The Plant List, record gcc-113173.