Pomegranates are round, reddish-brown fruits with a hard, smooth exterior. They grow on shrub-like trees and are typically similar in size to a navel orange. The interior of a pomegranate consists of a white, pulpy mesocarp surrounding small seeds. The seeds, also known as arils, are about the size of corn kernels and contain bright red juice. They are the only edible part of the fruit, with each pomegranate containing hundreds of seeds.