This name is a synonym of Symphyotrichum ciliolatum (Lindl.) Á.Löve & D.Löve.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 38355BC2-A202-42D2-8425-383695ACA8C7) with original publication details: Rhodora 17 16 1915.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23448-2.
This name was in version 1 of The Plant List, record gcc-30385.