This name is a synonym of Verbena officinalis var. africana (R.Fern. & Verdc.) Munir.
The record derives from Tropicos
(data supplied on 2012-04-18)
which reports it as a synonym (record 100273249) with original publication details: Telopea 7: 295 1997.
This name was in version 1 of The Plant List, record tro-100273249.