This name is a synonym of Hypochaeris glabra L..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record DB0D0798-F454-4029-AA3C-02715F0ABE47).
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 Hypochaeris glabra in version 1 of The Plant List.