Verbena brasiliensis
 Brazilian Verbena and Brazilian Vervain redirect here. See also below for a common misapplication of those names.Brazilian Verbena or Brazilian Vervain Verbena brasiliensis is a flowering plant species from the vervain family (Verbenaceae). It is native to parts of South America namely Brazil but has spread its range in recent times and has occasionally become an invasive weed.In the past several botanists have mistakenly applied the scientific name of the Purpletop Vervain V.