Leptochloa chinensis (L.) Nees, 1824

This species is locally very rich in waste fields and paddy fields.

Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hainan, Henan, Hubei,Hunan, Jiangsu, Jiangxi, Shaanxi, Shandong, Sichuan, Taiwan, Yunnan, Zhejiang [Bhutan, Cambodia, India, Indonesia, Japan, Malaysia, Myanmar, Philippines, Sri Lanka, Thailand, Vietnam; Africa].

Anual culm tufted, erect, the base geniculate or ascending, 3-6-noded; ligule membranous 1-2 mm long, fringed with cilia. Inflorescence a panicle , 10-20 cm long, spikelets racemosely arranged on one side of the primary branches. Spikelets (2-)3-7-flowered, about 2.5 mm long, often purplish; glumes membranous pointed, minute, subequal, 1-nerved; lower glume about 0.8 mm long; upper glume longer, about 1 mm long; lemmas keeled, obtuse, glabrous or somewhat pubescent, 3-nerved; the lowest lemma about 1.5 mm long; palea minute, membranous 2-keeled, apex blunt, about 0.8 mm long; anthers 3, about 0.2 mm long. Caryopsis globose, about 1 mm long.

"Culms tufted, erect or ascending, to 75 cm; nodes glabrous. Leafblades flat or involute, 8-24 x 0.2-0.6 cm, glabrous; ligule membranous, lacerate at apex, to 0.2 cm. Panicles to 30 cm; branches numerous, linear, erect or spreading, to 18 cm. Spikelets linear-oblong, to 0.3 cm, 3-7-flowered; pedicel to 0.1 cm, scaberulous. Glumes ovate-lanceolate, membranous, subequal, 1-veined; lower glume to 0.08 cm; upper glume to 0.12 cm; lemmas elliptic-lanceolate, keeled, 3-veined, sparsely pilose on marginal veins; lower lemma to 0.15 cm; palea ovate, to 0.08 cm, membranous, 2-keeld. Grain broadly obovoid, to 0.1 cm."