This name is a synonym of Phagnalon rupestre subsp. graecum Batt..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 0376FBC9-3A53-4C15-BE12-DAC535C519A7) with original publication details: 16 1855.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:197383-1.
This name was in version 1 of The Plant List, record gcc-128772.