Tall reed-like perennial. Rhizome woody, prostrate, covered with scales. Culms erect. Blades narrowly lanceolate, tessellate-nerved, petiolate; ligule subcoriaceous, truncate, lightly brownish, sheath glabrous, smooth. Panicle large, open, outline elliptic, 30-50 cm long,very dense with many branches and numerous spikelets. Spikelets 1.5-2 mm long, 2-flowered, cylindrical, the margins ciliate-hispid; glumes chartaceous, 0.3-0.5 mm long, margins siliceous; lower glume apex sinus; upper glume apex rounded. Lower floret reduced to only a lemma; lower lemma acute at the apex, 1-nerved, chartaceous, 1.5 mm long. Upper floret 1 mm long; lemma subcoriaceous, ovate-deltoid, apex cuspidate, the margins with long glandular hairs, 3-nerved, 0.6-1 mm long. Caryopsis 0.5 mm long, elliptical.

TAIPEI: Hsintien, Hsu 267; Wulai, Suzuki 6833. MIAOLI: Tahu, Chen 17. NANTOU: Puli, Hsu & Kuoh 11288. KAOHSIUNG: Liukuei, Hsu 3198. TAITUNG: Chihpen, Kao 7138.

Distributed in southern China, Indo-China, India, and the Philippines.

Widely spread in Taiwan.

leaf surface 表面: (sha)upper surface with shallow notch
between the veins

sclerenchyma 厚壁組織: (boscl)(bostr)on both sides of veins as
strand or girder

chlorenchyma 葉綠組織: (armed)compact armed cells

bundle sheath 維管束鞘: (nke)bundle sheaths without chloroplast

buliform cells well developed 泡狀細胞發達: mainly appear in adaxial side

with small vein under buliform cells泡狀細胞下有小脈: (fansh)bulliform set shell-shaped or fan -shaped

chlorenchyma cell number between two adjacent veins: 8

chloroplast form in bundle sheath 束鞘細胞內之葉綠體型式: (not)no chloroplast

mestome sheath 內束鞘細胞: (Xyms+)metaxylem pole adjacent with
mestome sheath

distance between two adjancent vein 脈間距: 198 micrometer

length/weidth ratio of bundle sheath in LS 束鞘細胞縱面長寬比: 2

chlorenchyma cell shape in LS 葉綠細胞縱面形狀: lobed