Allocasuarina portuensis

About

Allocasuarina portuensis, commonly known as Nielsen Park she-oak, is a species of flowering plant in the family Casuarinaceae and is endemic to a restricted part of the Sydney region in eastern New South Wales. It is a slender, dioecious shrub with branchlets up to 270 mm (11 in) long, the leaves reduced to scales in whorls of seven or eight, the fruiting cones 12–15 mm (0.5–0.6 in) long containing winged seeds (samaras) 4–5 mm (0.16–0.20 in) long.

Summary from Wikipedia