This name is a synonym of Symphyotrichum laeve (L.) Á.Löve & D.Löve.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 949AFB86-32C0-4989-B1F1-82DD57042872) with original publication details: Syn. Fl. N. Amer. 1(2) 183 1884.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23609-2.
This name was in version 1 of The Plant List, record gcc-57006.