Allocasuarina paludosa, commonly known as swamp she-oak[2]orscrub sheoak,[3] is a species of flowering plant in the family Casuarinaceae and is endemic to south-eastern continental Australia. It is a monoeciousordioecious shrub that has branchlets up to 200 mm (7.9 in) long, the leaves reduced to scales in whorls of six to eight, the fruiting cones 10–18 mm (0.39–0.71 in) long containing winged seeds 3.5–5.0 mm (0.14–0.20 in) long.
Allocasuarina paludosa is a spreading, monoecious or dioecious shrub that typically grows to a height of 0.3–4 m (1 ft 0 in – 13 ft 1 in). Its branchlets are more or less erect, up to 200 mm (7.9 in) long, the leaves reduced to erect or spreading, scale-like teeth 0.5–0.9 mm (0.020–0.035 in) long, arranged in whorls of six to eight around the branchlets. The sections of branchlet between the leaf whorls are 5–14 mm (0.20–0.55 in) long and 0.7–1 mm (0.028–0.039 in) wide. Male flowers are arranged in spikes 10–25 mm (0.39–0.98 in) long, with 7 to 9 whorls per centimetre (per 0.39 in.), the anthers 0.7–1.1 mm (0.028–0.043 in) long. Female cones are sessile or on a peduncle up to 2 mm (0.079 in) long, the mature cones cylindrical to oval, 10–18 mm (0.39–0.71 in) long and 7–13 mm (0.28–0.51 in) in diameter, the winged seeds dark brown to black and 3.5–5.0 mm (0.14–0.20 in) long.[2][3][4][5]
Allocasuarina paludosa grows in heath and in poorly drained soils near swamps at the edge of woodland on the coast and nearby tablelands of New South Wales south from Broken Bay, through southern Victoria to the far south-east of South Australia.[2][3][4][5]
^ abcWilson, Karen L.; Johnson, Lawrence A.S. "Allocasuarina paludosa". Royal Botanic Garden Sydney. Retrieved 2 July 2023.
^ abcEntwisle, Timothy J.; Stajsic, Val. "Allocasuarina paludosa". Royal Botanic Gardens Victoria. Retrieved 2 July 2023.
^ ab"Allocasuarina paludosa". Australian Biological Resources Study, Department of Agriculture, Water and the Environment: Canberra. Retrieved 2 July 2023.
