Verbena litoralis is a species of verbena known by the common names seashore vervain and Brazilian vervain, and in Hawaiian, ōwī. It is native to the Americas from Mexico south through Central and South America to Argentina and Chile. It is present throughout the world as an introduced species and in some areas a noxious weed. It is naturalized in the contiguous United States, Puerto Rico, Hawaii, Italy, Spain, South Africa, Mauritius, the Galápagos Islands, Australia, Easter Island, French Polynesia, Japan, New Zealand, and other places. It grows in many types of habitat, including disturbed and cultivated areas.