This name is a synonym of Libanothamnus liscanoanus (Cuatrec.) Cuatrec..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 617727BF-52A6-4BEE-95A9-1BEA0026AE41) with original publication details: Phytologia 27 41 1973.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:97710-2.
This name was in version 1 of The Plant List, record gcc-15079, and has not been changed.