Bromus sterilis

Weakly tufted annual, culms erect, to 1 m high. Leaves with soft, spreading hairs; blade flat, to 20 cm long and 6 mm wide; ligule glabrous or with a few fine hairs, toothed, 1–3 mm long. Inflorescence a loose, open panicle, to 20 cm long (excluding awns), branches widely speading, longer than the spikelets. Spikelets 4–10-flowered, oblong, 20–35 mm long (excluding awns); lower glume 1-nerved, 6–14 mm long, upper glume 3–5-nerved, 10–20 mm long; lemma 14–20 mm long, excluding awn, dorsally rounded, smooth to moderately scabrous, with 2 membranous apical lobes 1–2 mm long; awn 15–30 mm long. Flowers Nov.–Feb.