What is "tectona"

Tectona is a genus of tropical hardwood trees in the mint family, Lamiaceae. The three species, often collectively called teak, are native to south and southeast Asia, mainly India, Pakistan, Bangladesh, Burma, Indonesia and Thailand, and are commonly found as a component of monsoon forest vegetation. They are large trees, growing to 30–40 m (90–120 ft.) tall, deciduous in the dry season. Tectona grandis is an economically important species which is the source of most commercial teak wood products.