Cyperus viscidulus
Cyperus viscidulus is a sedge of the family Cyperaceae that is native to north western Australia (found in Western Australia and the Northern Territory). The rhizomatous perennial herb to grass-like sedge typically grows to a height of and has a tufted habit. It blooms between February and August producing yellow-brown flowers. The species was first formally described by the botanist Karen Louise Wilson in 1980 as part of the work "Notes on some Australian species of Cyperaceae" as published in the journal "Telopea". The only synonym is "Cyperus sporobolus" var. "sexflorus" but the species is often  incorrectly identified as "Cyperus carinatus" or "Cyperus sporobolus". In Western Australia it is found along streams and creeks and surrounding water holes in the Kimberley region where it grows in sandy alluvial soils often around sandstone. It is also found in western parts of the top end of the Northern Territory.