If the lilac-colored, bilaterally symmetrical flowers arrayed in racemes remind you of the little dog-faced flowers of verbenas or lantanas, there's a good reason, for this is a member of the big Vervain Family to which those plants also belong. It's DURANTA REPENS, native from Mexico to Brazil. It's such a pretty plant that horticulturalists have developed any number of cultivars from it, some with variegated foliage, some with white flowers, etc. The plant goes by so many names -- such as Golden Dewdrop, Pigeon-Berry and Sky-Flower -- that many English speakers just refer to it by its genus name, Duranta.

You can see that nectar-seeking insects are attracted to Duranta's flowers, which even provide a nice landing pad for pollinators (the corolla's expanded lower lip), and directional lines running up the lip, leading to the hole holding the nectar (nectar guides).

This plant native to the Yucatan should be propagated much more than it already is.