生活型

herb

形態特徵

• Rhizome short, densely tufted, without stolon. Culms lateral or rarely central, few to a tuft, 5-20 cm tall, smooth.
• Leaves many, much longer than culm; blades 5-15 mm wide; sheaths short, lightly yellowish brown.
• Spikes 2 or 3, subfastigiate, erect; terminal spike staminate, linear, 1.5-3 cm long; lateral spikes pistillate, oblong, 1.5-3 cm long, 7-8 mm wide, densely many-flowered, subsessile or short peduncled. Bracts leafy, surpassing inflorescence, short sheathing.
• Pistillate glumes ovate to oblong, ca. 3 mm long, pale, broad, green costa forming a cusp at glume apex. Utricles longer than glume, patent, fusiform, 7-9 mm long, olive green, finely many-veined, glabrous or sparsely pubescent; beak short, bidentate. Achenes tightly inclosed, obovate, 4-5 mm long, trigonous with angles usually minutely constricted at middle, apex distinctly long beaked, expanding into a discoid annulus; style enlarged toward base, stigmas 3, short.

分布

• 台灣 : forest floor, 300-1,600 m.
• 世界 : Vietnam.

引證標本

NANTOU: Fenghuangshan, Hayata s. n. 1916. PINGTUNG: Lilungshan, Leong 1792; Nanjenshan, Leong 1844.

引用文獻

• KOYAMA, Tetsuo, KUOH, Chang-Sheng & LEONG, Wai-Chao, Flora of Taiwan, second edition 5: 215. 2000.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)