Casuarina trees, also known as she-oaks or Australian pines, are a group of evergreen trees and shrubs native to Australia and Southeast Asia. They are known for their adaptability, fast growth, and various uses, including windbreaks, erosion control, and firewood. 
Key characteristics and uses of Casuarina trees:
Adaptability: They thrive in diverse environments, including sandy, saline, and drought-prone areas. 
Windbreaks: Their dense, needle-like foliage provides excellent wind protection for agricultural lands and other areas. 
Erosion Control: The extensive root system helps stabilize soil and prevent erosion. 
Firewood: The wood is dense and burns well, making it a good source of fuel. 
Other Uses: Casuarina wood is also used for timber, charcoal production, and in some regions, for making boats. 
Ecological Roles: They can play a role in rehabilitating degraded sites, stabilizing dunes, and providing habitat. 
Casuarina species can form symbiotic relationships with nitrogen-fixing bacteria, which can improve soil fertility.