生活型

herb

形態特徵

• Rhizome short, densely tufted, with long, slender stolons. Culms, slender to filiform, 5-40 cm tall, trigonous, smooth or scabrid above.
• Leaves rather many, shorter than culms; blades 1-5 mm wide; basal sheaths pale to brown.
• Spikes 2-6; terminal spike staminate, linear to oblong, 0.5-2 cm long, pale green; lateral spikes pistillate, ovoid to ellipsoid, erect to slightly patent, 0.5-2 cm long, 3-5 mm wide, densely to subdensely several- to many-flowered, sessile to short peduncle. Lower bracts leafy, short sheathing, lowest blade equalling to overtopping inflorescence.
• Pistillate glumes ovate to oblong or elliptic, acute, 2-3 mm long excluding awn, pale, green costa projecting beyond glume apex forming straight or recurved awn 1-3 mm long. Utricles slightly longer than glume, suberect to patent, obovoid, 2.5-3.5 mm long, trigonous, many-nerved, pubescent, attenuate below to a short stipitate base, beak short, orifice minutely bidentate. Achenes tightly enveloped, obovate, 1.5-2 mm long, trigonous, mitrate at apex; stigmas 3, short.

分布

• 台灣 : from seacoast to 3,800 m.
• 世界 : The Himalaya, China, Japan, Korea, southeastern Asia, Australia and New Zealand.

引證標本

TAIPEI: Yenliao, Leong 789. TAICHUNG: Wuling, Chang 10848. NANTOU: Sanchaufeng, Leong 1318. CHIAYI: Alishan, Kuoh 11020. KAOHSIUNG: Tienchi, Kuoh 12040.

參考文獻

• KOYAMA, Tetsuo, KUOH, Chang-Sheng & LEONG, Wai-Chao, Flora of Taiwan, second edition 5: 205. 2000.  (Fl. Taiwan 2nd edit.)