Avicennia marina, commonly known as grey mangrove, is a species of mangrove tree found in coastal intertidal zones. It thrives in saline environments and is characterized by its distinctive prop roots, which help stabilize the shoreline and provide habitat for various marine organisms. The tree can grow up to 10 meters tall and has thick, leathery leaves that are adapted to conserve water. This species plays a crucial role in coastal ecosystems by preventing erosion and providing shelter for wildlife. Avicennia marina also contributes to carbon sequestration, helping to mitigate climate change. Its ability to filter pollutants makes it vital for maintaining water quality in coastal areas.