生活型

herb

形態特徵

• Perennial. Rhizome rather thick, short creeping, woody. Culms robust, erect to scrambling on bushes, 60-250 cm tall, 5-15 mm thick, pubescent, scabrous on angles.
• Leaves 10-25 mm wide, herbaceous to slightly coriaceous, puberulent, scabrous on margins and alone costas, acutish at apex; sheaths trigonous, usually broadly winged, scabrous on angles; contraligule reddish brown to purplish brown, round to somewhat depressed, pubescent.
• Inflorescence consisting of 3-5 compound panicles, 15-50 cm long; panicles single or binate, peduncles ascending, puberulent, scabrous, long-exserted ; lowest bracts slightly surpassing inflorescence. Spikelets unisexual or gynodioecious, greenish to olivaceous brown, single or binate.
• Achene bearing spikelets broadly ovoid. Staminate spikes lanceolate, 3-4 mm long; Stamens 3. Achene globose to ovate, 2.5-3 mm long, terete to obtusely trigonous, white to grayish, shining, smooth; hypogynium shallowly 3-lobed, lobes appressed to achene, deltoid, obtuse at apex.

分布

• 台灣 : in lowland forest and thickets in south.
• 世界 : Southern and southwestern China.

引證標本

Nantou: Liyutan, Wang & H. M. Lin 3374; Pingtung: Nanjenshan, Leong 1838, Kaoshifo, Leong 1628.

引用文獻

• KOYAMA, Tetsuo, KUOH, Chang-Sheng & LEONG, Wai-Chao, Flora of Taiwan, second edition 5: 311. 2000.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)