This name is a synonym of Verbena halei Small.
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym (record 339785) with original publication details: Nature Leafl. Lower Rio Grande Valley Nat. Club 2: 4 1945.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:263073-2.
This name was in version 1 of The Plant List, record kew-339785.