Caustis R.Br.

Leaves reduced to brown scales sheathing the culm Caustis

Ultimate branches flexuose, curved into spirals. Culms up to 60 cm high

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Stamens 3. Spikelets functionally bisexual. Flower-bearing branches usually all flexuose. Widespread. Ss. Heath and DSF Caustis flexuosa

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Stamens 5–6. Spikelets functionally unisexual with males and females on separate culms. Branches bearing male spikelets considerably less flexuose than those bearing female spikelets