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 CBCEDA64-9073-4A47-8156-BB72D1347951) with original publication details: 158 1818.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:181764-1.
This name was in version 1 of The Plant List, record gcc-115141.