Festuca alatavica (St.-Yves) Roshev.

3700-5300m.

Plant densely tufted, shortly rhizomatous. Culms 30–80 cm tall. Leaf sheaths smooth or scabrid; leaf blades flat or involute, stem blades 2–4 cm, basal blades up to 20 cm, adaxial surface scaberulous; ligule 0.1–0.3 mm, ciliolate. Panicle broadly ovate in outline, very loose, 7–16 cm; branches 3–6 cm, widely spreading, scabrid, few-spiculate, 2 at lowest node. Spikelets 10–12 mm; florets 4–6; glumes smooth, almost entirely hyaline, thickened around veins; lower glume narrowly lanceolate, 4–4.5 mm; upper glume broadly lanceolate, 5–5.5 mm; lemmas narrowly oblong, (5–)6–6.5 mm, smooth or scabrid upward, apex acuminate or with awn-point; awns 1–1.5 mm; palea keels scabrid. Anthers 2.5–4 mm. Ovary apex sparsely hairy. Fl. and fr. Aug–Sep.

Densely tufted perennial with short thick rhizomes; culms 30-85cm high, erect or ascending from a curved base, slender to moderately stout. Leaf-blades folded, prominently ribbed above, up to 25cm long, 1.5-2.5mm wide, mostly basal, smooth on the lower (outer) surface; ligule c.0.75mm long. Panicle broadly ovate, 7-16cm long, very lax, few-spiculate, the branches smooth or scaberulous, widely spreading, bare for most of their length and with only 1-3(-4) spikelets each. Spikelets 4-6(-8)-flowered, 10-13mm long; glumes almost entirely hyaline, thicker only along the nerves, the lower 3-4(-4.5)mm long, 1-nerved, the upper 4-5(-5.5)mm long, 3-nerved; lemmas narrowly oblong in side-view, (5-)6.5-8mm long, glabrous and smooth, narrowly hyaline along the margins, with a short awn-point 0.3-1.5mm long; palea scabrid along the keels; anthers 2.5-4mm long; ovary thinly hairy at the tip.

Xinjiang [Kashmir, E Kazakhstan, Kyrgyzstan, N Pakistan, Tajikistan].

Distribution: Pakistan (N.W.F.P., Gilgit & Kashmir); Central Asia.

Fl. & Fr. Per.: July-August.

Stony slopes, wet places; 2600–4000 m.

Festuca rubra Linnaeus subsp. alatavica Hackel ex St.-Yves, Candollea 3: 393. 1928; F. tianschanica Roshevitz.

Festuca alatavica is a species in the grass family Poaceae. It was first described in 1934 by Alfred (Marie Augustine) Saint-Yves. It is native to Central Asia and West Himalaya. It is perennial and grows in temperate biomes.

Festuca alatavica là một loài thực vật có hoa trong họ Hòa thảo. Loài này được (St.-Yves) Roshev. mô tả khoa học đầu tiên năm 1934.

阿拉套羊茅（学名：Festuca alatavica），为禾本科羊茅属下的一个植物种。