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

Stamens mostly 3. Spikelets solitary without a continuing bract or only with short ones. Culms weak, floating or creeping