Cyperus conicus

Cyperus conicus is a sedge of the family Cyperaceae that is native to Western Australia.
The perennial, rhizomatous and leafy sedge typically grows to a height of in height and has a tufted habit. It blooms between March and July producing brown flowers.
It is found in the Kimberley, Pilbara and northern Goldfields regions of Western Australia where it grows in sandy-clay and lateritic loamy soils.