This name is a synonym of Symphyotrichum pilosum (Willd.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record FBC7D974-5478-4B9C-BB10-BA7FEC9843B2) with original publication details: 124 1841.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23392-2.
This name was in version 1 of The Plant List, record gcc-63911.