Genus Casuarina is a type of tree known for its long, slender leaves and pine-like appearance. It is also commonly referred to as the she-oak or ironwood tree. Other synonyms for Genus Casuarina include Australian pine, beefwood, horsetail tree, and whistling tree. These names are derived from the tree's unique characteristics such as its origin in Australia, its hardiness against harsh conditions like salt and drought, and its sound-producing branches. Genus Casuarina is a popular choice for landscaping and is frequently used as a windbreak, for erosion control, and as a source of firewood. Despite its various aliases, Genus Casuarina remains a distinguished and well-respected tree species.