About Allocasuarina pusilla (Macklin) L.A.S.Johnson
Allocasuarina pusilla is a spreading, dioecious shrub that typically reaches 0.2 to 2 meters (7.9 inches to 6 feet 6.7 inches) in height, and has smooth bark. Its branchlets grow erect to spreading, reaching up to 120 mm (4.7 in) long. Its leaves are reduced to overlapping, scale-like teeth 0.3–0.5 mm (0.012–0.020 in) long, arranged in whorls of five to seven around the branchlets. The sections of branchlet between the leaf whorls measure 3–9 mm (0.12–0.35 in) long and 0.4–1 mm (0.016–0.039 in) wide. Male flowers are arranged in spikes 3–20 mm (0.12–0.79 in) long, with around 8 to 11 whorls per centimeter (0.39 in), and anthers 0.6–1 mm (0.024–0.039 in) long. Female cones are sessile; mature cones are shortly cylindrical to roughly spherical, 10–15 mm (0.39–0.59 in) long and 8–11 mm (0.31–0.43 in) in diameter. The winged seeds are dark brown to black, and about 5 mm (0.20 in) long. This species grows in heath on sandy soils, ranging from the Yorke Peninsula in southeastern South Australia to the Big and Little Deserts of western Victoria, in the southeast of continental Australia.
