This name is a synonym of Symphyotrichum falcatum (Lindl. ex Lindl.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 29515BF3-8195-4FF3-A5AE-D84FE74E5E5E) with original publication details: 1023 1980.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:135660-2.
This name was in version 1 of The Plant List, record gcc-127702.