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 A6C4D87A-3F46-4BE0-A55B-0FB1875B7603) with original publication details: 347 1830.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:181672-1.
This name was in version 1 of The Plant List, record gcc-8426.