This name is a synonym of Symphyotrichum undulatum (L.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 423B9DAA-E7D1-4DCF-A49D-AA6165E8C556) with original publication details: 1903.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:181775-1.
This name was in version 1 of The Plant List, record gcc-107580.