Poa sieberiana

Tufted (rarely shortly rhizomatous or stoloniferous), perennial, culms erect, mostly to c. 80 cm high. Leaves fine, often curled, lightly to strongly scabrous, rarely virtually smooth in some high-altitude forms; sheath usually pale, very rarely purplish; blade inrolled, terete or angular, mostly c. 10–30(–c. 60) cm long, 0.2–0.7 mm diam; ligule truncate, firmly membranous c. 0.5 mm long. Inflorescence at maturity an open pyramidal panicle to c. 20 cm long and 12 cm wide. Spikelets 2–7-flowered, 2–5 mm long, green or purplish; glumes 3-nerved, or the lower 1-nerved, usually relatively broad, subequal, 1–2.5 mm long; lemma prominently 5-nerved, 1.8–3 mm long, usually shortly and evenly hairy the lower half (sometimes only very near the base), often with longer hairs along the keel and lateral nerves; web usually weakly developed or absent.