尾稃草Urochloa reptaus (Linn.) Stapf
尾稃草Urochloa reptaus (Linn.) Stapf
5. 尾稃草（禾本科图说）
Urochloa reptans (L.) Stapf in Prain, Fl. Trop. Afr. 9: 601. 1920;广州植物志412. 1956: 中国主要植物图说 禾本科679. 图624. 1959. ——Panicum reptans L. Syst. Nat. ed 10, 870. 1759. ——Brachiaria reptans (L. ) Gard. et Hubb. in Hook. Icon. Pl. sub. tab. 3363. 1936; Bor, Grass. Burm. Ceyl. Ind. Pakist. 285. 1960; H. B. Gill. et al. Fl. Malaya 3:175. 1971; 中国高等植物图鉴5:165. 图7160. 1976;台湾的禾草487. 图138. 1975, 台湾植物志5: 532. Pl. 1423. 1978.
《Flora of China》 Vol. 22 (2006)
Urochloa reptans (Linnaeus) Stapf
尾稃草 wei fu cao
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.
Grassy places, fields. Guangdong, Guangxi, Guizhou, Hunan, Sichuan, Taiwan, Yunnan [tropics throughout the world].
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.
别名：sprawling signalgrass;伏地尾稃草;
科名：禾本科 Gramineae
属名：尾稃草属 Urochloa
5. 尾稃草（禾本科图说）
Urochloa reptans (L.) Stapf in Prain, Fl. Trop. Afr. 9: 601. 1920;广州植物志412. 1956: 中国主要植物图说 禾本科679. 图624. 1959. ——Panicum reptans L. Syst. Nat. ed 10, 870. 1759. ——Brachiaria reptans (L. ) Gard. et Hubb. in Hook. Icon. Pl. sub. tab. 3363. 1936; Bor, Grass. Burm. Ceyl. Ind. Pakist. 285. 1960; H. B. Gill. et al. Fl. Malaya 3:175. 1971; 中国高等植物图鉴5:165. 图7160. 1976;台湾的禾草487. 图138. 1975, 台湾植物志5: 532. Pl. 1423. 1978.
《Flora of China》 Vol. 22 (2006)
Urochloa reptans (Linnaeus) Stapf
尾稃草 wei fu cao
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.
Grassy places, fields. Guangdong, Guangxi, Guizhou, Hunan, Sichuan, Taiwan, Yunnan [tropics throughout the world].
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.