Culms 1–1.5 m, 5–6 mm in diam.; internodes terete, 13.5–18.5 cm, glabrous; nodes with sheath scars weakly prominent. Culm sheaths deciduous, abaxially shortly setose and spotted; auricles and oral setae absent; ligule short; blade lanceolate, ca. 5 mm. Leaves 4 or 5 per ultimate branch; sheath glabrous; auricles and oral setae usually absent; ligule ca. 1.5 mm, apex recurved; blade 12–18 × 1.8–2.5 cm, glabrous, secondary veins 6-paired, base narrow, margins serrulate, apex caudiform. Inflorescence incompletely known. Spikelets 5.5–6.5 × 0.6–0.7 cm; florets ca. 6; pedicel 1.5–2 cm. Glumes ca. 4, lemma-shaped, 1.1–1.7 cm, glabrous; rachilla 6–7 mm, glabrous; lemma 1.8–2.1 × ca. 0.8 cm, glabrous, 21–24-veined, slightly tessellate, apex acuminate; palea 1.4–1.6 cm, narrow, glabrous; lodicules lanceolate, margins ciliolate. Anthers ca. 8 mm. Style short; stigmas plumose.
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