gray sheoak

Casuarina glauca, commonly called gray sheoak, is a species of flowering plant in the Casuarinaceae family. It is native to eastern Australia and is known for its dioecious nature, with separate male and female trees. The tree often forms root suckers and has distinctive fissured and scaly bark. Its branchlets are either spreading or drooping, and the leaves are reduced to scales in whorls of 12 to 20. The fruit is 9–18 mm long and contains winged seeds (samaras) measuring 3.5–5.0 mm in length. It was first described in 1826 by Spreng.