Caustis R.Br.

Leaves reduced to brown scales sheathing the culm Caustis
Ultimate branches straight, erect or pendulous. Culms often more than 1 m high. Spikelets in pairs, 12–16 mm long. Widespread. Sandy soils. Heath and DSF Caustis pentandra
Ultimate branches flexuose, curved into spirals. Culms up to 60 cm high