Annona is a genus of flowering plants in the family Annonaceae, which includes approximately 166 species of trees and shrubs. The genus is native to tropical regions of the Americas and includes a number of important fruit trees, such as the cherimoya (Annona cherimola), the sugar apple (Annona squamosa), and the soursop (Annona muricata).
Annona plants are characterized by their large, simple, alternate leaves and their typically solitary flowers, which are often large and showy. The fruits of Annona plants are generally fleshy and contain many seeds, and are often edible and highly valued for their flavor and nutritional content.
Several species of Annona are used in traditional medicine for their various therapeutic properties. For example, the bark of the Annona senegalensis tree is used in traditional African medicine to treat malaria, while the seeds of the Annona coriacea tree are used in South America as a natural insecticide.
Overall, the Annona genus is an important group of plants with many potential uses, both for food and medicine.