Pittosporum crassifolium is a species of evergreen tree or shrub that can grow up to 10 meters (33 feet) tall. It has dark green, glossy, leathery leaves that are about 5-10 cm (2-4 inches) long and 2-5 cm (0.8-2 inches) wide. The flowers are small, creamy-white, and have a pleasant fragrance. The fruit is a woody capsule that contains numerous seeds.