This name is a synonym of Centaurea acaulis L..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record D3D8DB09-5185-49E3-AF7E-8528B755228D).
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 Centaurea acaulis in version 1 of The Plant List.