Isolepis R.Br.

Plants in tufts or with a filiform rhizome; nut without hypogynous disc at base Isolepis

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Inflorescence apparently terminal. Stamens usually 3. Spikelets often numerous, only very rarely reduced to 1. Nut acutely 3-angular, smooth or minutely granular. Leaves reduced to a sheath with a very short lamina. Plants up to 40 cm high, weak, rhizomatous. Widespread. Wet places. Introd. from S. Africa Isolepis prolifera

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Inflorescence apparently lateral with basal bract apparently continuing the culm. Stamen 1, rarely 2 Isolepis inundata