单穗赖草 dan sui lai cao

Triticum ramosum Trinius in Ledebour, Fl. Altaic. 1: 114. 1829, not Weigel (1782); Agropyron ramosum K. Richter; Aneurolepidium ramosum Nevski; Elymus trinii Melderis.

Culms 30–50 cm tall, smooth, glabrous. Leaf sheath glabrous or puberulent proximally; ligule very short; leaf blade glaucous, flat, 0.2–0.6 cm wide, abaxial surface glabrous, adaxial surface and margin scabrous or puberulent. Spike erect, 4–8 × 0.6–1 cm; rachis margin hispid. Spikelets 1 at each node, glaucous or purplish glaucous, 1.1–1.7 cm, with 4–7 florets. Glumes linear-lanceolate, 5–9 mm, stiff, veinless or midvein obscure. Lemma broadly lanceolate, 6–8 mm, 5–9-veined, smooth, glabrous, awnless or with awn ca. 2 mm. Fl. and fr. Jun–Aug.

Valley grasslands. Xinjiang [Mongolia, Russia (W Siberia); Europe].