Diplachne P.Beauv.

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Lemma 3.5 mm or more long. Upper glume more than 3 mm long. Spikelets usually dark coloured, usually with more than 6 florets, in a dense branched panicle up to 50 cm long. Erect, tussocky herb up to 1.2 m high. Widespread. Usually in or near water. Fl. after flooding. Brown Beetle Grass Diplachne fusca

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Lemma up to 2.5 mm long. Upper glume less than 2 mm long. Spikelets usually with 6 florets or fewer, in a panicle up to 30 cm long. Tufted herb up to 70 cm high. Homebush Bay. Ditches and drains. Introd. from America. Fl. summer Diplachne uninervia