This name is a synonym of Libanothamnus spectabilis (Cuatrec.) Cuatrec..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record 45562388-F4DE-4372-9656-82C70804923F) with original publication details: Phytologia 27 46 1973.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:97776-2.
This name was in version 1 of The Plant List, record gcc-89895, and has not been changed.