弯曲赖草 wan qu lai cao

Culms erect, 60–100 cm tall, 2–3 mm in diam., 3–5-noded. Leaf sheath glabrous, or pubescent proximally; ligule ca. 1.5 mm, membranous; leaf blade usually rolled, 15–27 × 0.4–0.5 cm, abaxial surface glabrous, adaxial surface scabrous. Spike brownish, 15–25 × ca. 1 cm; rachis densely white puberulent; internodes 8–15 mm. Spikelets usually 3 per node, 1.3–1.7 cm, with 3–7 florets; rachilla internodes 0.5–1.5 mm. Glumes not covering base of first lemma, linear-lanceolate, subequal, 11–14 mm, 1- or 2-veined, margin membranous, ciliate, apex narrowedinto awn. Lemma lanceolate, 5-veined, pilose or glabrous;first lemma 9–10 mm; callus villous; awn 2–3 mm. Palea equaling lemma, ciliolate along keels distally. Anthers yellow, 3–4 mm. Fl. and fr. summer.

* Mountain slopes; ca. 3200 m. Gansu, Qinghai (Xinghai, Xining), Shanxi.

The new combination Leymus secalinus (Georgi) Tzvel. var. flexus (L. B. Cai) L. B. Cai & X. Su (Bull. Bot. Res., Harbin 27(6): 654. 2007) appeared after publication of the family treatment for the Flora of China.