This name is a synonym of Verbena bonariensis L..
The record derives from WCSP
(data supplied on 2012-03-26)
which reports it as a synonym (record 212381) with original publication details: Bull. Herb. Boissier II, 4: 1057 1904.
Full publication details for this name can be found in IPNI: http://ipni.org/urn:lsid:ipni.org:names:291102-2.
This name was in version 1 of The Plant List, record kew-212381.