*Diplachne uninervia (J.Presl) Parodi
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