This name is a synonym of Osteospermum acanthospermum (DC.) Norl..
The record derives from TICA
(data supplied on 2012-02-11)
which reports it as a synonym (record B4A26366-035E-4A60-A69B-65ECAD4DAF1C) with original publication details: Prodr. (DC.) 5: 509 509 1836.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:260951-1.
This name was in version 1 of The Plant List, record gcc-77025, and has not been changed.