Elymus alpinus L. B. Cai

Culms erect, 25–35 cm tall, usually 5-noded. Leaf sheath usually longer than internode, glabrous; ligule ca. 0.3 mm, apex usually truncate; leaf blade flat or slightly involute, 6–10 × 0.3–0.5 cm, both surfaces glabrous, margin ciliate. Spike erect or slightly flexuose, 4–6 × ca. 0.9 cm; rachis glabrous, but margin ciliolate; internodes 2–3 mm. Spikelets (1 or)2 per node, green, 10–12 mm, with 3 or 4 florets; rachilla densely puberulent. Glumes narrowly lanceolate, subequal, 3–4 mm, 1–3-veined, scabrous along midvein, apex acuminate. Lemma lanceolate, abaxially pubescent; first lemma 7–8 mm; awn slender, 3–7 mm. Palea slightly longer than lemma, ciliolate along keels distally, puberulent between keels. Anthers blackish, ca. 1.5 mm. Ovary pubescent at apex. Fl. Jul.

Qinghai (Gonghe, Ulan).

* Meadows; ca. 3200 m.