生活型

herb

形態特徵

• Rhizome short creeping, loosely tufted, rather thick, sometimes with elongating stolons. Clums slender, 30-60 cm tall, 0.3-0.5 mm thick, scabrid above.
• Leaves several, 1.5-2.5 mm wide; basal sheaths brown to dark brown.
• Spikes 3 to 5, subsessile to long-peduncled; terminal spike staminate, or rarely bearing a few pistillate flowers at base, 2-3 cm long, ca. 2 mm wide; lateral spikes pistillate, narrowly cylincrical, 2.5-4.5 cm long, ca. 5 mm thick, sublaxly many-flowered. Bracts sheathing, 3-5 mm long; lower blades leafy, shorter than spike.
• Pistillate glumes oblong, more or less emarginate at cuspidate apex, brownish to yellowish brown, bearing scabrous awn at apex. Utricles slightly surpassing glume, erect, fusiform, 4.5-5 mm long, trigonous, gradually attenuated at both ends, short-stipitate at base, membranaceous, nearly nerveless except for two costas, densely hirsute except at very base, beak rather long, 2-toothed at obliquely truncate orifice. Achenes tightly enveloped, ovate-elliptic, compressed, trigonous, 2-2.5 mm long including a short stipe; style thickened at base; stigmas 3.

分布

• 台灣 : grasslands at high elevations.
• 世界 : The Ryukyus and New Guinea.

引證標本

ILAN: Nanhutashan, Lu 23392. HSINCHU: Tapachienshan, Kuoh 14443. NANTOU: Noko Pass, Ohwi 3283. CHIAYI: Paiyun, Chen 11241; Niitaka (Yushan), Ohwi 3677. KAOHSIUNG: Southern Cross-Island Highway, Kuoh 11874.

參考文獻

• KOYAMA, Tetsuo, KUOH, Chang-Sheng & LEONG, Wai-Chao, Flora of Taiwan, second edition 5: 202. 2000.  (Fl. Taiwan 2nd edit.)