生活型

herb

形態特徵

• Perennials; culm tufted, glabrous, stout, mostly 50-150 cm tall; rhizome short.
• Blade glabrous; ligule 2-4 mm long, truncate, membranaceous, glabrous.
• Racemes usually 5-10, 6-8 cm long, axils of racemes pilose. Spikelets ovate-pointed, 3-3.5 mm long, green or purplish, in pairs, one subsessile and other shortly pedicelate; lower glume absent; upper glume and lower lemma membranaceous, 5-9-veined, margins fringed with long silky hairs, sparsely covered with silky hairs all over; upper lemma orbicular, ca. 2 mm long, rounded, coriaceous; anther ca. 1 mm long.

分布

• 台灣 : common on waste grounds in northern Taiwan.
• 世界 : Orinally from South America, naturalized elsewhere.

引證標本

TAIPEI: Shimen, Kao 3581. TAICHUNG: Kukuan, Hsu 668. PINGTUNG: Kenting, Hsu 521.

引用文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 497. 2000.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)