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Dinghushan | Family List | Poaceae | Urochloa

Urochloa reptans (L.) Stapf

尾稃草

Description from Flora of China

Annual. Culms slender, creeping, rooting at lower nodes, ascending to 10–50 cm tall. Leaf sheaths glabrous, one margin densely ciliate; leaf blades lanceolate, 2–6 × 0.3–1.2 cm, glabrous or loosely hispidulous, base subcordate, margins scabrous, pectinate-ciliate at base; ligule ca. 1 mm, ciliate. Inflorescence pyramidal, axis 1–8 cm; racemes 3–6(–12), 0.5–4 cm, spreading; rachis triquetrous, scabrous; spikelets paired, crowded, pedicels setose. Spikelets ovate or ovate-elliptic, 2–2.5 mm, usually glabrous, acute; lower glume cufflike, 1/8–1/4 spikelet length, thinly membranous, veinless or obscurely 3-veined, truncate or rounded; upper glume (5–)7–9-veined; lower lemma 5-veined, palea well developed; upper lemma broadly elliptic, 1.8–2 mm, finely rugose, apiculate. Fl. and fr. summer–autumn. 2n = 14, 18.

This weedy species is widely distributed in the Old World and introduced in America. It is a borderline species in the genus: the small, plump spikelets are reminiscent of Brachiaria, where it is placed by some authors.

Grassy places, fields. Guangdong, Guangxi, Guizhou, Hunan, Sichuan, Taiwan, Yunnan [tropics throughout the world].

生活型: 草本

栽培植物: 野生

特征: 一年生草本;

花期: 夏秋

果期: 夏秋

生境: 生于路旁、旷地

用途: 可作牲畜饲料;谷粒可提取淀粉

门中名: 种子植物门

亚门中名: 被子植物亚门

纲中名: 单子叶植物纲


 

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