西藏早熟禾(原变种) xi zang zao shu he (yuan bian zhong)

Poa ciliatiflora Roshevitz; P. stenostachya S. L. Lu & X. F. Lu (2001), not R. Brown (1810); P. stenostachya var. koko-norica S. L. Lu & X. F. Lu.

Culms erect or obliquely ascending, 20–60 cm tall. Leaf blade 4–7 cm, of tillers 12–18 cm; ligule membranous, 1–2 (–3.5) mm, apex rounded. Panicle contracted to spikelike, 5–10 cm. Spikelets ovate to elliptical, 5–5.5 mm, florets 3–5; lower glume 2.5–3.5 mm, narrow, upper glume 3.5–5 mm; lemmas 4–4.5 mm, a little thinner and subacute. Anthers ca. 2 mm. Fl. and fr. Jul–Sep. 2n = 42.

Marshy meadows, riversides, lake banks, grassy places, ditch banks, saline meadows, saline moist places; 3000–4500 m. Gansu, Nei Mongol, Qinghai, Xinjiang, W Xizang [NW India, Kazakhstan, Kyrgyzstan, Mongolia, Nepal, Pakistan, Russia (Siberia), Tajikistan; SW Asia (Iran)].

Poa stenostachya seems to differ from P. tibetica var. tibetica only in its longer ligules, 3–3.5 mm.