Maireana sedifolia, also known as pearl bluebush, pearl saltbush, hoary bluebush, is a species of flowering plant in the family Amaranthaceae and is endemic to arid parts of inland Australia. It is a compact, widely branching shrub with fleshy, narrowly egg-shaped leaves, pairs of densely woolly bisexual flowers, and a firm, thin-walled fruiting perianth with a papery, horizontal wing.