They vary in size from small shrubs less than 1 m, to medium-sized trees 20 m.
Male and female flowers grow on different trees.
The fruit is 10-20 cm in diameter and has many prism-like sections, resembling the fruit of the pineapple. Typically, the fruit changes from green to bright orange or red as it matures.
Seeds are mainly distributed through water. But pandanus fruits are also eaten by many animals contributing to the spread of seeds.