Hordeum bogdanii Wilensky

1700-4000m.

Tufted perennial; culms (15-) 30-80 (-100) cm high, erect or geniculately ascending. Leaf-blades up to 18 cm long, 2-6.5 mm wide, scabrid. Spike slender, (2-)3.5-9(-9.5) cm long, glaucous or greenish-violet to dark violet; rhachis slightly scabrid on the margins, tough below but fragile above at maturity. Central spikelets sessile; glumes setaceous, (4-)5.5-10(-11) mm long, scabrid; lemma lanceolate, (4.3-) 5-7.5 mm long, scabrid to appressed puberulous; awn (4-) 5.3-11(-13) mm long anthers 1.4-2.4 mm long. Lateral spikelets usually well developed, rarely rudimentary, male or bisexual, pedicellate; glumes setaceous, (4-) 6-10(-11) mm long, scabrid; lemma (-4)5-7 mm long.

Plants perennial, tufted. Culms 40–80(–100) cm tall, ca. 2 mm in diam., (2 or)3–5(or 6)-noded, densely appressed hairy at nodes. Leaf sheath membranous or fibrous, smooth, but those of lower leaves sometimes hairy; ligule 0.2–0.6 mm, membranous; auricles usually absent; leaf blade glaucous green, flat, 6–15 × 0.3–0.8(–1) cm, stiff, both surfaces scabrous or adaxial surface pilose. Spike pale whitish glaucous or greenish violet to somewhat dark violet, 4–10 × (0.3–)0.5–0.7 cm; rachis usually tough except apically, margin scabrous hairy. Lateral spikelets:pedicellate, male or perfect and setting seeds; glumes setaceous, rarely somewhat flattened at base, equal or proximal one slightly shorter (6–10 mm); lemma 5–7 mm, pubescent, awn 4–9 mm; palea usually equaling lemma. Central spikelet: sessile, lanceolate; glumes setaceous, 5–10 mm; lemma 5–7 mm, densely shortly hairy, awn 5–10 mm; palea subequaling lemma, apex truncate or acute. Anthers usually yellow, 1.1–2 mm. Fl. and fr. Jun–Sep. 2n = 14.

Distribution: Pakistan (Baluchistan, Gilgit & Kashmir); Southeast Europe eastwards through southern USSR to Mongolia and northern China.

Gansu, Qinghai, Xinjiang [Afghanistan, Kazakhstan, Kyrgyzstan, Mongolia, Russia (W Siberia), Turkmenistan, Uzbekistan].

Fl. & Fr. Per.: July-September.

Alkaline or saline moist meadows, riverside sands, pebbles; 1000–3800 m.

Critesion bogdanii (Wilensky) A. Löve.

Hordeum bogdanii là một loài thực vật có hoa trong họ Hòa thảo. Loài này được Wilensky mô tả khoa học đầu tiên năm 1918.

布顿大麦草（学名：Hordeum bogdanii Wilensky）是一种禾本科植物。这种植物分布于中国青海、新疆；此外，苏联、蒙古也有分布。