Allocasuarina filidens, commonly known as the Mt Beerwah she-oak,[1] is a species of flowering plant in the family Casuarinaceae and is endemic to a restricted area of Queensland. It is a dioecious shrub that has more or less erect branchlets up to long, the leaves reduced to scales in whorls of five or six, the fruiting cones long containing winged seeds (samaras) long.
Allocasuarina filidens is a dioecious or monoecious shrub that typically grows to a height of . Its branchlets are more or less erect, up to long, the leaves reduced to erect, scale-like teeth long, arranged in whorls of five or six around the branchlets. The sections of branchlet between the leaf whorls (the "articles") are long and wide. Female cones are cylindrical to barrel-shaped, on a peduncle long. Mature cones are long and in diameter, the samaras dark brown to black and long.[2]
Allocasuarina filidens was first formally described in 1989 by Lawrie Johnson in the Flora of Australia from specimens collected by Stanley Blake on Mount Beerwah in 1966.[3] [4] The specific epithet, (filidens) means "thread-tooth", referring the long, slender "teeth".
Mt Beerwah she-oak grows in rock crevices on the upper slopes and mountain tops of the Glass House Mountains in south-eastern Queensland.
Casuarina filidens is listed as "vulnerable" under the Queensland Government Nature Conservation Act 1992.