昌都羊茅 chang du yang mao

Culms 60–100 cm tall, nodes 3–4. Leaf sheaths glabrous; auricles absent; leaf blades flat, 10–20 cm × 3–5 mm, both surfaces scabrid; ligule 3–5 mm. Panicle very loose, open, 18–22 cm; branches horizontal, 9–11 cm, 3–4 per node. Spikelets 6–7 mm; florets 3–5; glumes with trichomes; lower glume narrowly lanceolate, 2.8–3.2 mm, scabrid along keel; upper glume narrowly oblong, 3.8–4.2 mm, scabrid; rachilla internodes 0.9–1.1 mm, scabrid; lemmas 4.8–5.2 mm, puncti-scabrid or pubescent, apex acute; awns absent; palea keels scabrid toward apex. Anthers 1.5–2 mm. Ovary apex glabrous.

* Grassy mountain slopes; 3200–3800 m. Sichuan, Xizang.

This species has a unique combination of flat leaf blades, awnless lemmas, and a glabrous ovary.