This name is a synonym of Aster acris S.G.Gmel..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 36264908-6529-4831-949C-E518F6B8CFCD).
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 acris in version 1 of The Plant List.