Allocasuarina filidens

Allocasuarina filidens is a dioecious or monoecious shrub that typically grows to a height of 1.5–3 m (4 ft 11 in – 9 ft 10 in). Its branchlets are more or less erect, up to 200 mm (7.9 in) long, the leaves reduced to erect, scale-like teeth 1.5–2.0 mm (0.059–0.079 in) long, arranged in whorls of five or six around the branchlets. The sections of branchlet between the leaf whorls (the "articles") are 12–15 mm (0.47–0.59 in) long and 0.5–0.8 mm (0.020–0.031 in) wide. Female cones are cylindrical to barrel-shaped, on a peduncle 2–9 mm (0.079–0.354 in) long. Mature cones are 14–30 mm (0.55–1.18 in) long and 11–18 mm (0.43–0.71 in) in diameter, the samaras dark brown to black and 6.5–9 mm (0.26–0.35 in) long.

Mt Beerwah she-oak grows in rock crevices on the upper slopes and mountain tops of the Glass House Mountains in south-eastern Queensland.