Areca catechu is the areca palm or areca nut palm betel palm, (Filipino: bunga, Malay: pinang, Malayalam: അടക്ക adakka), a species of palm which grows in much of the tropical Pacific, Asia, and parts of east Africa. The palm is believed to have originated in either Malaysia or the Philippines. Areca is derived from a local name from the Malabar Coast of India and catechu is from another Malay name for this palm, caccu.
It is a medium-sized and graceful palm tree, growing straight to 20 m tall, with a trunk 10–15 cm in diameter. The leaves are 1.5–2 m long, pinnate, with numerous, crowded leaflets. It is also known as puga in Sanskrit and supari in Marathi and Gujarati.
Areca catechu is grown for its commercially important seed crop, the areca nut.
Penang Island, off the west coast of Peninsular Malaysia, Fua Mulaku in the Maldives, Guwahati in Assam, and coastal areas of Kerala and Karnataka in India, are some of the places named after a local name for areca nut.
Chemical composition 
The seed contains alkaloids such as arecaidine and arecoline, which, when chewed, are intoxicating and slightly addictive. Areca palms are grown in Bangladesh, India, Malaysia, Taiwan and many other Asian countries for their seeds.
The areca palm is also used as an interior landscaping species. It is often used in large indoor areas such as malls and hotels. It will not fruit or reach full size. Indoors, it is a slow growing, low water, high light plant that is sensitive to spider mites and occasionally mealybugs. The areca nut is also popular for chewing throughout some Asian countries, such as Taiwan, Vietnam, the Philippines, Malaysia, and India and the Pacific, notably Papua New Guinea, where it is very popular. Chewing areca nut is quite popular among working classes in Taiwan. The nut itself can be addictive and has direct link to oral cancers. Areca nuts in Taiwan will usually contain artificial additives such as limestone powder.
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- Marcello Spinella (2001). The psychopharmacology of herbal medicine: plant drugs that alter mind, brain, and behavior. MIT Press. pp. 233–. ISBN 978-0-262-69265-6. Retrieved 14 October 2011.
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