Often called pandanus palms, these plants are not closely related to palm trees. The species vary in size from small shrubs less than 1 m (3.3 ft) tall, to medium-sized trees 20 m (66 ft) tall, typically with a broad canopy, heavy fruit, and moderate growth rate The trunk is stout, wide-branching, and ringed with many leaf scars. Mature plants can have branches. Depending on the species, the trunk can be smooth, rough, or warty. The roots forms a pyramidal tract to hold the trunk.