曲芒偃麦草 qu mang yan mai cao

Triticum gmelinii Trinius, Linnaea 12:467. 1838 ["gmelini"]; Agropyron aegilopoides Drobow; A. gmelinii (Trinius) P. Candargy (1901), not (Ledebour) Scribner & J. G. Smith (1897); A. strigosum (M. Bieberstein) Boissier subsp. aegilopoides (Drobow) Tzvelev; A. propinquum Nevski; Elymus aegilopoides (Drobow) Voroschilov; Elytrigia aegilopoides (Drobow) Peshkova; E. propinqua (Nevski) Nevski; E. strigosa (M. Bieberstein) Nevski subsp. aegilopoides (Drobow) Tzvelev; Pseudoroegneria strigosa (M. Bieberstein) A. Löve subsp. aegilopoides (Drobow) A. Löve.

Plants with short rhizomes. Culms usually densely tufted, geniculate at base, 35–65 cm tall, smooth, glabrous. Leaf sheath smooth, glabrous; ligule short; leaf blade glaucous, flat or margin involute, to 0.3 cm wide, abaxial surface smooth, glabrous, adaxial surface puberulent. Spike erect, secund, 7–11 cm; rachis margin scabrous. Spikelets glaucous or purplish, 13–18 mm excluding awns, with 5–7 florets. Glumes narrowly lanceolate, 5- or 6-veined, glabrous, apex acuminate or with awn to 4 mm; proximal glume 6–9 mm; distal glume 7–10 mm. Lemma narrowly lanceolate, 10–11 mm, hispid; awn curved, 15–23 mm. Fl. and fr. Jun–Aug. 2n = 14.

Forest grasslands; ca. 2000 m. Xinjiang [Mongolia, Russia (Siberia)].