Elymus shouliangiae (L. B. Cai) S. L. Chen & G. H. Zhu

Culms erect, 60–70 cm tall, 2–3 mm in diam., ca. 4-noded. Leaf sheath glabrous; ligule ca. 0.3 mm, apex truncate; leaf blade flat, 9–17 × 0.3–0.6 cm, rigid, both surfaces glabrous or adaxial surface scabrous. Spike lax, 16–19 cm; rachis glabrous, but margin scabrous; internodes 15–23 mm. Spikelets 1 per node, 2.6–3.2 cm excluding awns, with 8–10 florets; rachilla internodes puberulent. Glumes lanceolate, glabrous; proximal glume 7–8 mm, 3- or 4-veined, apex acuminate; distal glume 8–9 mm, 5–7-veined, apex with awn 2–5 mm. Lemma lanceolate, smooth, glabrous; first lemma 11–12 mm; awn recurved, robust, 3.5–4 cm. Palea subequaling lemma, scabrous or spinescent along keels, glabrous between keels, apex truncate. Anthers brown, 4–5 mm. Ovary obovate, apex pubescent. Fl. and fr. Jul.

Xizang (Gyirong)

* River banks; ca. 2800 m.

Roegneria shouliangiae L. B. Cai, Acta Phytotax. Sin. 35: 161. 1997.