Brachiaria reptans

尾桴草

Brachiaria reptans (L.) C. A. Gardner & C. E. Hubb.

名彙資訊

特徵描述

典藏標本

數位照片

分布位置

相關資訊

名彙資訊

學名發表文獻

C. A. Gardner & C. E. Hubb., Hooker's Icones Plantarum 34(3): . pl. 3363. fig. 3. 1938. (Icon. Pl. (Hooker))

台灣首次記錄發表文獻

Ohwi, Acta phytotaxonomica et geobotanica eng 11: 43. 1942. (Acta Phytotax. Geobot.)

異名

Panicum procumbens auct. non Nees

Henry, A List of Plants from Formosa 106. 1896. (List Pl. Formos.)
Panicum reptans L.

Hayata, Icones Plantarum Formosanarum 7: 60. 1918. (Icon. Pl. Formos.)
Panicum barbipedum Hayata

Hayata, Icones Plantarum Formosanarum 7: 62. 1918. (Icon. Pl. Formos.)

各語言俗名

中

臂形草.
英

Creeping armgrass.
日

けはいきび. ひめびえ.

參考文獻

Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

herb

形態特徵

Annuals; culm ascending, 10-30 cm above creeping base, nodes hairy, 1.2-2.5 mm in diam.
Blades hispid, 1-9 cm long, 4-12 mm wide, cordate and ciliate on undulate margins at base; sheaths ciliate on margins, shorter than internode; ligule ca. 1 mm long.
Inflorescence of racemose racemes, racemes 3-15, usually alternate on main axis, 0.5-3 cm long; rachis usually scabrid and pilose; pedicel with a few weak long hairs. Spikelets paired, ovate, pale, crowded on one side of rachis, turgid, ca. 2 mm long, 1 mm wide, glabrous; lower glume minute, 1/4-1/5 as long as spikelet, membranaceous, truncate or rounded, veinless or obscurely 1-veined; upper glume ovate, acute, 5-7-veined; lower lemma 5-veined, paleate, palea oblong, acute, nearly as long as spikelet; upper lemma obovate, apiculate, minutely rugose; anther ca. 0.8 mm long.

分布

台灣 : weedy in cultivated fields and waste places.
世界 : Tropic regions.

引證標本

NANTOU: Chiali, Mori 243. YUNLIN: Taiow, Ashikaga 2536. CHIAYI: Suantou, Yasukaw s. n. TAINAN: Tainan, Hsu 6467. PINGTUNG: Hengchun, Hsu 504; Oluanpi, Hsu s. n. TAITUNG: Lutao Is., Hsu 301.