Culms densely tufted, erect, 35–50 cm tall, ca. 1.5 mm in diam., 2-or 3-noded, pubescent just below spike. Leaf sheath glabrous, rarely pubescent on lowermost leaves; ligule ca. 0.5 mm, scarious-membranous, apex truncate; leaf blade narrowly lanceolate, flat or slightly involute, 8.5–9 × ca. 0.3 cm, abaxial surface glabrous, adaxial surface densely white hairy, hairs ca. 1 mm. Spike erect, ovate, 3–3.5 × ca. 0.5 cm; rachis densely white pilose; internodes 1.5–2 mm. Spikelets greenish purple, oblong-ovate, ca. 7 mm excluding awns, with 5–7 florets; rachilla densely hirsutulous; internodes 1–1.2 mm. Glumes broadly lanceolate, unequal, 1(–3)-veined, densely white hirsute, margin herbaceous-membranous, apex acuminate or mucronate; proximal glume 3–5 mm; distal glume 4–7 mm. Lemma ovate, 7–9 mm excluding awn, densely white hairy, hairs ca. 1 mm; first lemma ca. 7 mm; callus with hairs ca. 0.8 mm; awn 1.5–4 mm. Palea equaling lemma, ciliolate along keels, densely hirsute between keels, apex emarginate. Lodicules triangular. Anthers yellow, ca. 3 mm. Caryopsis brown, ca. 5 mm. Fl. and fr. autumn.
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