Definition
The *genus Alstonia* comprises evergreen trees and shrubs found in tropical and subtropical areas of Asia, Africa, and Australia. These plants are characterized by their whorled leaves and fragrant flowers. They are often used in traditional medicine and as ornamentals. Think of them as the botanical backbone of tropical forests, providing valuable resources and beauty. They are like the quiet achievers, making a significant impact without much fanfare. *Alstonia* species are diverse and adaptable.