毛穗旱麦草 mao sui han mai cao

Agropyron distans K. Koch, Linnaea 21: 426. 1848; A. lasianthum Boissier; A. orientale (Linnaeus) Roemer & Schultes subsp. distans (K. Koch) Maire; A. orientale var. lasianthum (Boissier) Boissier; Eremopyrum orientale (Linnaeus) Jaubert & Spach var. lasianthum (Boissier) Maire; Triticum lasianthum (Boissier) Steudel.

Culms usually geniculate at base, 14–20 cm tall, hairy below spike. Leaf sheath slightly dilated but not inflated on uppermost leaf; leaf blade green, flat, 3–5 × 0.2–0.3 cm, scabrous, abaxial surface pubescent, adaxial surface shortly pilose. Spike oblong lobed or oblong-ovoid, 2–5.5 × 1.5–2.5 cm. Spikelets green or slightly purple tinged, 13–17 mm, with 3–5 florets, villous. Glumes linear, laterally strongly compressed, slightly contorted, equaling spikelet including awn, keeled, apex gradually tapering to slender, scabrous awn 6–8 mm. Lemma long villous, apex gradually tapering to slender, scabrous awn 5–7 mm. Palea apex acuminate; keels prolonged into 2 awned teeth 0.5–1.5 mm. Anthers yellow, ca. 1.5 mm. Fl. and fr. May–Jun. 2n = 14.

Wooded steppes, arid areas; ca. 800 m. Xinjiang [Afghanistan, Kazakhstan, Kyrgyzstan, Pakistan, Russia, Turkmenistan, Uzbekistan; Europe].