This name is a synonym of Olearia ledifolia (DC.) Benth..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record C476282B-553C-47E2-AB65-B885757D1110).
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 ledifolius in version 1 of The Plant List.