Ellen D. Macklin

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Allocasuarina pusilla, commonly known as heath oak-bush or dwarf sheoak, is a species of flowering plant in the family Casuarinaceae and is endemic to south-eastern continental Australia. It is a spreading, dioecious shrub with branchlets up to 120 mm (4.7 in) long, the leaves reduced to scales in whorls of five to seven, the fruiting cones 10–15 mm (0.39–0.59 in) long containing winged seeds about 5 mm (0.20 in) long.

Allocasuarina striata, commonly known as the small bull oak, stalked oak-bush or the tall oak-bush, is a shrub of the genus Allocasuarina native to South Australia.

Allocasuarina robusta, commonly known as Mount Compass oak-bush, is a species of flowering plant in the family Casuarinaceae and is endemic to a restricted area of South Australia. It is a monoecious, rarely a dioecious shrub with erect branchlets up to 200 mm (7.9 in) long, the leaves reduced to scales in whorls of five to seven, the fruiting cones 12–20 mm (0.47–0.79 in) long containing winged seeds about 5.5–6.0 mm (0.22–0.24 in) long.

Allocasuarina paradoxa is a species of flowering plant in the family Casuarinaceae and is endemic to Victoria. It is a dioecious or monoecious shrub that has branchlets up to 150 mm (5.9 in) long, the leaves reduced to scales in whorls of seven to eleven, the fruiting cones 13–25 mm (0.51–0.98 in) long containing winged seeds 4–8 mm (0.16–0.31 in) long.