This name is a synonym of Aster paniculatus Muhl..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 9C46E1E6-22BE-4B1D-A5EC-A2CDC47C0F2C).
This name record (from TICA) was not included in version 1 of The Plant List. It is possible the same name was included from a different data source, to check this you can search for Aster paniculatus in version 1 of The Plant List.