This name is a synonym of Hieracium levicaule subsp. vulgatiforme (Dahlst.) Zahn.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 9B3811FA-2489-41F3-B608-EF4C5BE73087) with original publication details: 81 1894.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:50941075-1.
This name was in version 1 of The Plant List, record gcc-70603.