Poa fax

Slender, erect annual, culms scabrous, to 40 cm high. Leaves glabrous, occasionally scabrous; sheath loose; blade flat, rather thin and weak, to c. 10 cm long and 2.5 mm wide; ligule obtuse, thinly membranous, 1–4 mm long. Inflorescence a narrow, interrupted or almost spike-like panicle, with short appressed branches, to 15 cm long. Spikelets strongly compressed, mostly 5–10-flowered, 5–13 mm long; glumes subequal or the upper slightly longer, mostly 3–5-nerved, 2–3 mm long; lemma very obtuse, 3.5–4.5 mm long, 9–11-nerved with prominent grooves between the nerves, densely silky-hairy on the margins and most of the nerves in the lower half; web absent or weakly developed. Flowers Sep.–Oct.