This name is a synonym of Verbena canescens Kunth.
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym (record 212663) with original publication details: Linnaea 21: 755 1849.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:865435-1.
This name was in version 1 of The Plant List, record kew-212663, and has not been changed.