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 and as an illegitimate name (record 802A8EFF-D4AA-461E-8949-7F6A0FC838F1) with original publication details: 1803.
This name was in version 1 of The Plant List, record gcc-88437.