This name is a synonym of Verbena × deamii Moldenke.
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym (record 212254) with original publication details: Naturaliste Canad. 93: 437 1966.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:291104-2.
This name was in version 1 of The Plant List, record kew-212254, and has not been changed.