Isolepis R.Br. >

Plants in tufts or with a filiform rhizome; nut without hypogynous disc at base Isolepis
Stamens mostly 1 or 2, rarely 3. Spikelets usually with a continuing bract
Spikelets usually more than 1 in each cluster; basal bract apparently continuing the culm, 2–3(5) mm long. Stamens 1 rarely 2. Nut yellowish or brownish, c. 1 mm long. Leaves linear, less than 1 mm wide; innermost leaf ensheathing each culm and usually reduced to a sheath alone or with a mucro. Erect herb with rhizome, often proliferating. Widespread. Wet places Isolepis inundata