长颖羊茅 chang ying yang mao

Plant loosely tufted or turf-forming; shoots extravaginal. Culms 40–65 cm tall, nodes 3–4. Leaf sheaths glabrous; auricles absent; leaf blades flat or involute, soft, (16–)20–35 cm × 2.5–3.5(–4) mm, smooth, veins 7–12; adaxial to abaxial sclerenchyma strands present, abaxial sclerenchyma in narrow discrete strands; ligule 0.2–0.4 mm, margin ciliate. Panicle loose, open, 10–22 cm, base enclosed by uppermost leaf sheath; branches ascending or spreading, 3–8(–10) cm, smooth, inserted singly, naked below middle. Spikelets 10–12 mm; florets 5–6; glumes glabrous, long acuminate; lower glume narrowly lanceolate, 5–6.5 mm; upper glume lanceolate, 8–9 mm; rachilla internodes 1.3–1.5 mm; lemmas 7–8.5(–10) mm, smooth; awns 7–10 mm; palea keels scabrid. Anthers 1.8–2 mm. Ovary apex glabrous. Fl. and fr. Aug.

* Mountain slopes, near forests; ca. 2900 m. Yunnan (Binchuan).