Elymus intramongolicus

Description

Culms laxly tufted,erect,100–160 cm tall,ca.5 mm in diam.,4- or 5-noded,smooth,glabrous.Leaf sheath glabrous;ligule lacerate,apex obtuse;leaf blade flat,15–25 × 0.5–1 cm,abaxial surface hirsutulous along veins,adaxial surface pubescent.Spike erect,9–15 cm;rachis margin shortly ciliate;internodes 5–10 mm.Spikelets 1 per node,green or purplish green,11–13.5(–18.5) mm,with 3–5 florets.Glumes linear-lanceolate,5–7-veined,densely hirsutulous abaxially,margin submembranous,apex acuminate or with awn 1–1.5 mm;proximal glume 9–10 mm;distal glume 10–11 mm.Lemma lanceolate,puberulent abaxially,apex unequally 1-toothed on each side;first lemma 11–12.5 mm;awn 1–2.5 mm.Palea shorter than lemma,puberulent abaxially,ciliolate along keels.Fl.and fr.Jul–Aug.