South American mock vervain

Glandularia aristigera (syns. Verbena aristigera and Verbena tenuisecta), variously called the moss verbena, desert verbena, fine leafed verbena, wild verbena, tuber vervain, South American mock vervain, Mayne's curse and Mayne's pest, is a species of flowering plant in the family Verbenaceae. It is native to Bolivia, southern Brazil, northern Argentina, Paraguay and Uruguay. It has been widely introduced to the rest of the world's drier tropics and subtropics, including California, Guatemala, Honduras, Nicaragua, Venezuela, Greece, Nigeria, eastern and southern Africa, India, and all of Australia except Tasmania.