生活型

herb

形態特徵

• Rhizome short, loosely tufted, with elongated slender stolons. Culms slender, erect, 8-24 cm tall, acute, 3-angled, smooth.
• Leaves several, basal or subbasal; blades 6-17 cm long, 2-3 mm wide; basal sheaths yellow-brownish.
• Spikes 3 to 5, spaced or upper 3 contiguous, subsessile to peduncled; terminal spike staminate, linear, 2-4 cm long, erect; lateral spikes pistillate, cylindrical to oblong, 1-4 cm long, 6-7 mm thick. Bracts leafy, sheathless, lowest blade much surpassing inflorescence.
• Pistillate glumes ovate to oblong, 3-4 mm long, membranaceous, pale, acute or acuminate at apex, green costa forming a mucro or a scabrid cusp at apex. Utricles erect-patent, oblong, ovate, 4-5 mm long, 0.8-1 mm wide, some what inflated, obscurely trigonous, glabrous, olive-green, several-veined, obtuse at base, beak long, truncate to minutely bidentate. Achenes elliptic, triquetrous, 1.5-1.7 mm long; stigmas 3, ca. 1.5 mm long.

分布

• 台灣 : forest margin and open place, 2,000-2,800 m.

引證標本

HSINCHU: Tapachienshan, Kuoh 14434. TAICHUNG: Tahsueshan, Kuoh 10550. NANTOU: Yuanfeng, Leong 1369; Hohuanshan, Peng 8309. CHIAYI: Yushan, Chuang & Kao 4056. KAOHSIUNG: Southern Cross-Island Highway, Kuoh 10469.

參考文獻

• KOYAMA, Tetsuo, KUOH, Chang-Sheng & LEONG, Wai-Chao. 2000. Flora of Taiwan, second edition 5: 218. (Fl. Taiwan 2nd edit.)