This name is a synonym of Haplopappus cerberoanus (J.Rémy) Reiche.
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record B8EB3A78-62B9-4588-BE57-9AAA8260E37B) with original publication details: Revis. Gen. Pl. 1 317 1891.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:23191-2.
This name was in version 1 of The Plant List, record gcc-100454.