Osmanthus /ɒzˈmænθəs/ is a genus of about 30 species of flowering plants in the family Oleaceae. Most of the species are native to eastern Asia (China, Japan, Indochina, the Himalayas, etc.) with a few species from the Caucasus, New Caledonia, Sumatra, and North America (Mexico, Central America, southeastern United States).Osmanthus range in size from shrubs to small trees, 2–12 m (7–39 ft) tall.