This document provides a description of the tree nut species Areca catechu. It describes the scientific classification of the species, the physical form and features of the tree including its height, canopy, leaves, flowers, and fruit. It notes that the fruit is an elongated ovoid shape called a betel nut. It also describes some traditional uses of parts of the areca nut tree in Java, including using the roots as poison, the midrib leaf-like tubes for packaging and food, and the trunk for climbing during celebrations.