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Allocasuarina rigida is a species of flowering plant in the family Casuarinaceae and is endemic to eastern Australia. It is a dioecious shrub that has branchlets up to 330 mm (13 in) long, the leaves reduced to scales in whorls of seven to ten, and the fruiting cones 8–27 mm (0.31–1.06 in) long containing winged seeds 3.0–7.5 mm (0.12–0.30 in) long.
Allocasuarina rigida grows in sandy soil on volcanic outcrops in exposed situations from the McPherson Range in south-eastern Queensland to the Gibraltar Range National Park and Ebor in north-eastern New South Wales and in disjunct populations on Mount Cooroora in south-eastern Queensland and Big Nellie Mountain near Taree in north eastern New South Wales. Subspecies exsul only occurs on Mount Cooroora and subsp. rigida occurs throughout the remainder of the range.
Allocasuarina acuaria · Allocasuarina acutivalvis · Allocasuarina anfractuosa · Allocasuarina brachystachya · Allocasuarina campestris · Allocasuarina corniculata · Allocasuarina crassa · Desert oak · Karri Oak · Dwarf Heath Casuarina · Allocasuarina dielsiana · Allocasuarina diminuta
Text excerpted from the Wikipedia article Allocasuarina rigida by its contributors, under CC BY-SA 4.0; the excerpts are shared under the same licence.
Life form, climate and native range: World Checklist of Vascular Plants, Royal Botanic Gardens, Kew (CC BY 3.0), reformatted; see Plants of the World Online.
