Allocasuarina zephyrea is a species of flowering plant in the family Casuarinaceae and is endemic to Tasmania. It is a dioecious shrub that has branchlets up to long, the leaves reduced to scales in whorls of seven to nine or ten, the fruiting cones long containing winged seeds long.
Allocasuarina zephyrea is a dioecious shrub that typically grows to a height of . Its branchlets are up to long, the leaves reduced to scale-like teeth long, arranged in whorls of seven to nine or ten around the branchlets. The sections of branchlet between the leaf whorls are long, wide. Male flowers are arranged in spikes long, with 5 to 7 whorls per centimetre (per 0.39 in.), the anthers long. Female cones are on a peduncle long, and mature cones long and in diameter, containing black, winged seeds long. This allocasuarina is similar to A. grampiana.[1]
Allocasuarina zephyrea was first formally described in 1989 by the botanist Lawrence Alexander Sidney Johnson in the Flora of Australia at Ocean Beach near Strahan in 1949.[2] [3] The specific epithet (zephyrea) means "west wind", referring to the species' occurrence on the western side of Tasmania.
Allocasuarina zephyrea is endemic to Tasmania, growing in woodland, heath, sedgeland and on rocky outcrops from the western lowlands to central and south-eastern highlands, as well as on King Island.[4]