This name is a synonym of Aster harrowianus Diels.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record AECCFDCB-DC4F-4171-9A27-FDA5B9440EBF).
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 harrowianus in version 1 of The Plant List.