Allocasuarina fibrosa, commonly known as the Woolly sheoak, is a shrub of the genus Allocasuarina native to a small area in the central Wheatbelt region of Western Australia.. The dioecious intricate shrub typically grows to a height of 0.5 to 1.5 metres (2 to 5 ft). It produces red-brown flowers from July to August and cones with long tangled coarse hairs. A. fibrosa is found in sandy and lateritic soils.