This name is a synonym of Wendlandia tinctoria subsp. floribunda (Craib) Cowan.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 214429) with original publication details: Bull. Misc. Inform. Kew 1913: 200 1913.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:770448-1.
This name was in version 1 of The Plant List, record kew-214429, and has not been changed.