This name is a synonym of Symphyotrichum lateriflorum (L.) Á.Löve & D.Löve.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 08586EFE-F96D-402E-8BD1-C0F2B54E3FAB) with original publication details: Rhodora 10 94 1908.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23634-2.
This name was in version 1 of The Plant List, record gcc-64757.