Megathyrsus maximus var. maximum

大黍

naturalized

Megathyrsus maximus (Jacq.) B.K.Simon & S.W.L.Jacobs var. maximum

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

B.K. Simon & S.W.L. Jacobs, Austrobaileya 6(3): 572. 2003.

台灣首次記錄發表文獻

Jung, Quarterly Journal of Forest Research 45(2): 179. fig. 3. 2023. (Quart. J. Forest. Res.)

異名

Panicum maximum Jacq.

Ohwi, Acta phytotaxonomica et geobotanica eng 11: 46. 1942. (Acta Phytotax. Geobot.)
Urochloa maxima (Jacq.) R. D. Webster

Chen, Naturalized plants of eastern Taiwan 338. 2008. (Nat. Pl. East. Taiwan)

各語言俗名

中

畿尼亞草.
英

Guinea grass.
日

ぎねあきび.

參考文獻

Wu, Yang, Teng, Chang, Yang and Hsieh, Taiwania 55(2): 157. 2010.
Yang, A list of plants in Taiwan . 1982. (List Pl. Taiwan)

特徵描述

生活型

herb

形態特徵

Perennials; rhizome stout, culm erect, node densely hirsute.
Blade 30-75 cm long, to 35 mm wide; sheath papillate-hirsute to glabrous; ligule 4-6 mm long.
Panicle open, 20-35 cm long, axils pilose, lower branches whorled. Spikelets 3-3.5 mm lng, obtuse, usually glabrous, faintly veined, mostly purplish red or flushed with purple; glumes unequal; lower glume ca. 1/3 length of spikelet, 1-3-veined or veinless; upper glume 5-veined; lower lemma usually staminate, rarely empty, 5-7-veined; upper lemma distinctly transversely rugose, stramineous, coriaceous.

分布

台灣 : in grassland, roadsides, riverbanks, plantations and disturbed places.
世界 : Originally from tropical Africa, introduced elsewhere.

引證標本

TAIPEI: Taipei, Hsu 393. MIAOLI: Shenghsing, Hsu 1369. TAICHUNG: Shinchuang, Yamamoto & Mori 8253. NANTOU: Puli, Hsu 1389. TAINAN: Hsinmatou, Mori 239.