Genus Annona is a group of flowering plants that belong to the custard apple family. These plants are native to tropical regions of South America and are characterized by their edible fruit. Some of the synonyms for the genus Annona include the Cherimoya, Sugar Apple, and Soursop. The Cherimoya is a small, green fruit with a creamy, custard-like flesh that is sweet and fragrant. The Sugar Apple, also known as the Sweetsop, has a hard, green skin and a soft, white pulp with a sweet taste. The Soursop is a tropical fruit with spiky, green skin and a creamy white pulp that is used in many tropical beverages and desserts. These fruits are not only delicious but also have many health benefits.