Description from Flora of China
Perennial. Culms rigid, tufted, erect or geniculate at base, 20–50 cm tall, 2–4 mm in diam., 5–6-noded. Leaf sheaths long pilose throughout; ligules a line of hairs; leaf blades linear, usually involute, 4–11 × 0.3–0.4 cm, pubescent in both surfaces. Panicle contracted and spikelike, 10–15 × 1–2 cm, 1- to several-branched; branches ascending, tightly appressed glabrous or with short hairs in axils, lower branches 1.5–2.5 cm. Spikelets yellow or purplish, oblong or linear-oblong, 4–8 × 2–3 mm, 4–14 florets. Glumes lanceolate, 1-veined, lower glume ca. 1.5 mm, the upper ca. 2 mm. Lemmas ovate, apex acute, lower lemma ca. 2.5 mm. Palea persistent, apex toothed, along keels winged, along wings ciliolate. Stamens 3; anthers ca. 0.5 mm. Caryopsis brown, oblong, ca. 1 mm. Fl. and fr. Apr–Oct.
* Mountain slopes, waste places. Fujian, Hainan, Shanghai, Taiwan.