生活型

herb

形態特徵

• Perennials; culms compressed, stoloniferous; flowering culms slender, glabrous, forming dense mats when growing in poor soils or when closely grazed by cattle.
• Leaf blade linear-oblong-obtuse, 10-18 cm long, 3-5 mm wide, folded along midrib; sheaths compressed and strongly keeled; ligule a minutely fimbriate membrane.
• Racemes 2-4, 3-8 cm long, ascending. Spikelets oblong-elliptic, subacute, margins silky pilose, ca. 2 mm long; lower glume absent; upper glume as long as spikelet, slightly mucronate, 4-veined, midvein absent; lower lemma nearly as long as upper glume, margins silky pilose, 2-veined; upper floret ovate-obtuse, coriaceous, slightly shorter than spikelet; stigma purple; caryopsis elliptic-oblong, compressed, dark-colored.

分布

• 台灣 : northern Taiwan, forming wide meadows.
• 世界 : Native to tropical America.

引證標本

TAIPEI: Chyngtiangang, Liou 16799. TAINAN: Hsinhua, Hsu 1534.

引用文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 456. 2000.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)