Ylang-Ylang

C. odorata is a fast-growing tree of the custard-apple family Annonaceae. Its growth exceeds 5 m (15 ft) per year[citation needed] and attains an average height of 12 m (40 ft). It grows in full or partial sun, and prefers the acidic soils of its native rainforest habitat. The evergreen leaves are smooth and glossy, oval, pointed and with wavy margins, and 13–20 cm (5–8 in) long. The flower is drooping, long-stalked, with six narrow, greenish-yellow (rarely pink) petals, rather like a sea star in appearance, and yields a highly fragrant essential oil.