This name is a synonym of Symphyotrichum novi-belgii (L.) G.L.Nesom.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record F7A13F72-D208-4141-BE68-401EC563CDE7) with original publication details: Fl. Bor.-Amer. 2: 10 (1834) 10 1834.
This name was in version 1 of The Plant List, record gcc-34588.