This name is a synonym of Aster curvescens E.S.Burgess.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 63697060-F7E4-496E-8265-AF32C6A340BC) with original publication details: 1898.
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 curvescens in version 1 of The Plant List.