Arundinella flavida Keng

This is a lowland species with distinctive, smooth, leathery leaf blades and a rather dense panicle of setose, awned spikelets.

Perennial, with stout scaly rhizomes. Culms erect, stiff, 50–120 cm, 2–3 mm in diam., branching at lower nodes forming leafy fascicles, nodes glabrous or pubescent. Leaf sheaths glabrous or shortly tuberculate-hispid, margins ciliate; leaf blades erect or stiffly divaricate, flat, leathery, (6–)15–30 cm × 5–10 mm, glabrous except for basal fringe and spaced bristles on lower margins, lacking an obvious midvein, apex acuminate; ligule ca. 0.2 mm. Panicle narrowly elliptic-oblong in outline, fairly dense, 9–15(–27) cm; central axis scabrid; branches 1.5–7 cm, narrowly ascending, lower often with branchlets; pedicels slender, finely scaberulous.Spikelets 4–5 mm, yellowish brown; glumes 3(–5)-veined, setose from large tubercles along the raised veins, apex narrowly acuminate; lower glume 3.1–3.7 mm; upper glume 3.8–4.1 mm; lower floret equal to lower glume or slightly longer; upper floret 2–2.5 mm, lemma apex entire, awned; awn geniculate with brown twisted column, 2.2–3 mm; callus hairs 1/4 length of lemma. Fl. and fr. Sep–Nov.

Guangxi, Guizhou [Vietnam].

Dry slopes; ca. 500 m.