Allocasuarina gymnanthera is a species of flowering plant in the family Casuarinaceae and is endemic to eastern New South Wales. It is a dioecious shrub or tree that has more or less erect branchlets up to long, the leaves reduced to scales in whorls of six to eight, the fruiting cones long containing winged seeds (samaras) long.
Allocasuarina gymnanthera is a dioecious shrub or tree 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 six to eight around the branchlets. The sections of branchlet between the leaf whorls (the "articles") are long and wide. Male flowers are arranged like a string of beads, in spikes long, with three to five whorls per centimetre (per 0.39 in.), the anthers long. Female cones are cylindrical, on a peduncle long, the mature cones long and in diameter, the samaras dark brown to black and long.[1] [2] [3]
Allocasuarina gymnanthera was first described in 1989 by Lawrie Johnson in Flora of Australia.[4] The specific epithet, (gymnanthera) means "naked flowers".
This she-oak grows in open woodland on sandy soil on sandstone ridges between the Pilliga Scrub, Ulan, Baerami, Singleton and Glen Davis in eastern New South Wales.