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 62B02C2F-06C2-4D93-B003-9EF57E64DE72) with original publication details: 202 1789.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:181236-1.
This name was in version 1 of The Plant List, record gcc-102371.