This name is a synonym of Geropogon hybridus (L.) Sch.Bip..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 9E7FF747-F3FA-49DA-AB32-C171359F1596) with original publication details: "Hill, Hort. Kew. 1768." 41 1768.
This name was in version 1 of The Plant List, record gcc-117782.