Betel Nuts Plants known as Areca catechu is a tropical fruit-bearing palm tree that belongs to the Arecaceae family. It is native to South Asia and is widely cultivated in many tropical and subtropical regions around the world for its seeds, which are commonly chewed in some cultures for their stimulant effects. Betel Nuts Plants are also known by other common names such as areca nut, paan, and supari. The leaves of Betel nut trees are large, pinnately compound, and typically have numerous leaflets.