Bulbostylis barbata is a flowering plant in the sedge family, Cyperaceae, that is native to Western Australia.
The annual grass-like plant has a tufted habit and typically grows to a height of 2to. It blooms between February and September, producing brown flowers.
It is rarely solitary and is found in rock crevices and along creek and rivers and on low-lying flats throughout a large area of the Kimberley, Pilbara, Mid West and Goldfields-Esperance regions, where it grows in sandy-loamy alluvium over sandstone and granite.