Alstonia Apr 2026

The genus Alstonia includes about 40 to 60 species of evergreen trees and shrubs within the dogbane family, Apocynaceae. Named after the Scottish botanist Charles Alston, these plants are famous for their milky latex and diverse medicinal properties. They are found across tropical regions in Africa, Asia, Australia, and Central America. Notable Species

(Blackboard Tree / Devil’s Tree): The most well-known species, native to South and Southeast Asia. It is widely used in Ayurvedic medicine to treat respiratory issues and malaria. alstonia

(God's Tree / Onyame Dua): A prominent West African medicinal herb used for treating fever and inflammation. The genus Alstonia includes about 40 to 60