Lachnagrostis filiformis
Pedicel of spikelets usually close to the rhachis, less than 5 mm long. Spikelets 2–4 mm long, usually light green or straw-coloured sometimes tinged with purple. Lemma 2 mm long or less. Erect annual up to 70 cm high. Culms 4-noded. Leaf blades 8–25 cm long, usually c. 2 mm wide. Panicle spreading. Widespread. Usually in damp places. Fl. summer. Blown Grass