This name is a synonym of Wrightia tinctoria subsp. rothii (G.Don) Ngan.
The record derives from WCSP
(data supplied on 2012-03-23)
which reports it as a synonym (record 214944) with original publication details: Gen. Hist. 4: 86 1837.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:82880-1.
This name was in version 1 of The Plant List, record kew-214944, and has not been changed.