Casuarina cunninghamiana aka Beefwood

Casuarina cunninghamiana, also known as river oak, river sheoak or creek oak, is a flowering plant that belongs to the Casuarinaceae family and is native to Australia and New Guinea. This tree has fissured and scaly bark, and sometimes drooping branchlets. Its leaves are reduced to scales in whorls of 6 to 10, and its fruit measures 7-14mm in length, containing winged seeds (samaras) 3-4mm long. River Sheoak is commonly found across much of Eastern Australia, along freshwater rivers and streams, from southern New South Wales to northern Queensland and inland for up to 400km. This species has a moderate to deep root system that develops a thick mat, making it excellent for erosion control. It is dioecious, with male and female flowers on separate plants. River Sheoak is also a great option for screening and can be easily pruned or coppiced. Under cultivation, it can tolerate drought, seasonal waterlogging, and slight to moderate salinity. As a houseplant, River Sheoak is rare and needs regular watering to thrive. It prefers abundant sunlight and should be placed less than 3 feet from a window.