This name is a synonym of Evolvulus pohlii Meisn..
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 50163727) with original publication details: Fl. Bras. 7: 349 1869.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:102675-2.
This name was in version 1 of The Plant List, record tro-50163727, and has not been changed.