Eragrostis cylindrica (Roxb.) Arn.

Culm tufted. Blade 9-10 cm long, linear, 1-1.5 mm wide; sheath-mouth and margins covered with long silky hairs; ligule of a ring of hairs about 0.3 mm long. Inflorescence a contracted panicle, cylindrical, pilose at the axils of branches. Spikelets 6-7-flowered, about 4 mm long; glumes chartaceous, broadly lanceolate,1-nerved, pointed; the lower glume slightly shorter, about 1.8 mm long; lemma chartaceous, ovate-deltoid, mucronate; palea elliptical, chartaceous, 2-keeled, cilate along keels, margins inrolled and ciliate. Caryopsis about 0.5 mm long, ovate; embryo 1/2 the length of the caryopsis.

Perennial. Culms 30–90 cm tall, 1–2.5 mm in diam., tufted, rigid, 3–4-noded. Leaf sheaths shorter than internodes, pilose and long-pilose near summit; ligules a line of hairs; leaf blades 3–15 cm × 2–5 mm, linear, usually involute, pilose. Panicle 2–8 × 1–2.5 cm, contracted, cylindrical in outline; branches ascending, long pilose in axils, lower branches 0.5–1.5 cm. Spikelets yellowish brown or purplish, oblong, subsessile or with very short pedicels, ca. 7 × 2.5–3 mm, 4–17-flowered. Glumes 1-veined, apex acute, lower glume ca. 1.5 mm, upper glume ca. 2 mm. Lemmas chartaceous, ovate-oblong, apex mucronate, lowest lemma ca. 2 mm. Palea persistent, elliptical, chartaceous, ca. 1.8 mm, apex acute, along keels without wing only ciliate, margins unrolled and ciliate. Stamens 3; anthers yellowish, ca. 0.4 mm. Caryopsis yellow, elliptical, ca. 0.5 mm. Fl. and fr. Apr–Oct.

Nepal, Indo-China, S. China, Taiwan.

Distributed in Vietnam, South China and Taiwan.

1200 m

* Mountain slopes. Anhui, Fujian, Guangdong, Guangxi, Hainan, Jiangsu, Taiwan.

Poa cylindrica Roxb., Fl. Ind. 1 : 335. 1820.
Eragrostis geniculata Nees & Ney in Nov. Act. Acad. Caes. Leop. Carol 19: Supp. 1: 71. 1841; Honda, Monogr. Poac. Jap. 109. 1930.

Poa cylindrica Roxburgh, Fl. Ind. 1: 335. 1820; Eragrostis geniculata Nees & Meyen.