Cyperus ixiocarpus

Cyperus ixiocarpus is a sedge of the family Cyperaceae that is native to Australia.
The robust perennial sedge typically grows to a height of and has a viscid tufted habit. The plant blooms between February and July producing yellow-green-brown flowers.
In Western Australia it is found along sandy creek and river beds in the Gascoyne and Pilbara regions where it grows in red sandy-loamy soils.