Fimbristylis macassarensis

Fimbristylis macassarensis is a sedge of the family Cyperaceae that is native to Australia.

The annual grass-like or herb sedge typically grows to a height of 0.06 to 0.4 m and has a tufted habit. It blooms between February and June and produces green-brown flowers.

In Western Australia it is found on along creeks and rivers and other damp places in the Kimberley region where it grows in red sandy-clay soils often over basalt.