This name is a synonym of Symphyotrichum squamatum (Spreng.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym and as an illegitimate name (record 189D84BC-5149-4436-A224-55E7504D2206) with original publication details: 178 1879.
This name was in version 1 of The Plant List, record gcc-46350.