短芒大麦(原亚种) duan mang da mai (yuan ya zhong)

Hordeum secalinum Schreber var. brevisubulatum Trinius, Sp. Gram. 1: pl. 4. 1828; Critesion brevisubulatum (Trinius) A. Löve; H. macilentum Steudel; H. secalinum subsp. brevisubulatum (Trinius) Krylov.

Culms glabrous throughout. Leaf blade abaxial epidermis with straight long cells, without silica cells. Lemma of central spikelet glabrous or subglabrous; awn less than 3 mm. Fl. and fr. summer. 2n = 14*, 28*.

Steppe valleys at timberline, saline meadows, stream banks; 1400–3000 m. Gansu, Nei Mongol, Ningxia, Qinghai, Shaanxi, Xinjiang, Xizang [Mongolia, Pakistan, Russia (SE Siberia); C Asia].