生活型

herb

形態特徵

• Rhizome long creeping, slender. Culms solitary or several and loosely tufted, 10-40 cm tall, 0.25-0.5 mm wide, trigonous, smooth.
• Leaves shorter than or overtopping culm, few; blades narrowly linear, 1.5-3 mm wide; sheath pale yellow to yellowish brown.
• Spikes (2-)3-5, spaced except uppermost two are often contiguous, erect; terminal spike staminate, linear-cylindrical, 1-3 cm long, 1.2-1.5 mm wide pale brown; lateral spikes pistillate, narrowly cylindrical, 0.7-3 cm long, 2-2.5 m wide, loosely serveralmany flowered. Bracts sheathing, 0.6-l.5 cm long; lowest bract with leafy blade, surpassing subtending spike, shorter than inflorescence; upper blades setaceous.
• Pistillate glumes ovate to somewhat elongated, apex obtuse or subacute, pale or yellowish brown, green costa often ending in mucro at glume apex. Utricles erect, obovoid, trigonous, 2.8-3.5 mm long, finely several-nerved, glabrous; beak scabrous on margins, minutely 2-toothed at orifice. Achenes tightly inclosed, obovoid, mitrate at apex, ca. 2 mm long, trigonous; stigmas 3.

分布

• 台灣 : grassy places at mid elevations.
• 世界 : Japan.

引證標本

KAOHSIUNG: Southern Cross-Island Highway, Kuoh 11655.

引用文獻

• KOYAMA, Tetsuo, KUOH, Chang-Sheng & LEONG, Wai-Chao, Flora of Taiwan, second edition 5: 199. 2000.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)