Alstonia scholaris

Alstonia scholaris, commonly known as the Blackboard Tree or Devil’s Tree, is a tall evergreen tree native to South and Southeast Asia. It belongs to the Apocynaceae family and can reach heights of 30–40 meters. The tree is widely recognized for its straight trunk, whorled leaves, and fragrant white flowers, making it a prominent feature in tropical forests and urban landscapes.

Medicinal Uses:
The bark, leaves, and latex of Alstonia scholaris are highly valued in traditional medicine. Its bark is used to treat respiratory ailments, fever, malaria, and digestive disorders. Extracts from the tree possess anti-inflammatory, antimicrobial, and antimalarial properties, making it an important component of Ayurveda, Siddha, and other traditional healing systems.

Ecological Importance:
Alstonia scholaris plays a crucial ecological role. Its dense foliage provides shade and habitat for birds and insects. The flowers attract pollinators, while the tree contributes to soil stabilization and biodiversity in tropical ecosystems.

Cultural Significance:
In addition to its medicinal and ecological value, the Blackboard Tree holds cultural significance in several regions. It is often planted near schools and temples, symbolizing knowledge and protection. Its robust growth and majestic appearance make it a landmark in many communities.

Alstonia scholaris is part of the catalog of ayurvedic medicinal plants of Sri Lanka.