Glyceria chinensis Keng ex Z. L. Wu

Perennial. Culms soft, decumbent at base, rooting at lower nodes, 30–60 cm tall, 1.5–2 mm in diam. Leaf sheaths smooth, longer or lower shorter than internodes; leaf blades flat or folded, flaccid, 5–12 cm × 2–3 mm, smooth or adaxial surface scabrid, apex acute; ligule 5–6 mm. Panicle narrow, 15–19 cm, base included in uppermost leaf sheath or shortly exserted; branches 2 at lower nodes, suberect, bearing 1–3 spikelets, panicle racemelike toward apex. Spikelets linear-oblong, 1–1.6 cm, florets 5–9, green; glumes oblong-ovate, membranous, 1-veined, lower glume 1.7–2 mm, apex acute, upper glume 2.7–3 mm, apex obtuse; lemmas lanceolate-oblong, 4–4.5 mm, herbaceous, smooth or scaberulous, 7-veined, veins scaberulous, apex membranous, obtuse; palea as long as or slightly longer than lemma, keels narrowly winged, apex emarginate. Stamens 3, anthers 0.7–1 mm.

* Damp places. SW Guizhou (Xingyi), E Yunnan.