生活型

herb

形態特徵

• Herbs erect, upto 3 m tall, with short rhizome, culms 1-3 cm in diameter, nodes exposed, internode glabrous.
• leaf sheath glabrous, margin open, shorter than internode; ligule membranous, margin ciliate, ca. 1.5 mm long, blade linear, glabrous, upto 80 cm long, 5-6 cm wide, blade base coated with cilia, cilia ca. 2 mm long.
• Panicles of 1-several subdigitate to racemose rames, terminal and/or axillary, rame with proximal pistillate spikelets and distal staminate spikelets. Pistillate spikelet solitary, embedded in the indurate rame axes, axes 7-9 mm long, ca. 5 mm wide; lower glumes broadly ovate, apex acute, 13-nerved, coriaceous, 6.5-7 mm long; upper glume broadly ovate, apex acuminate, coriaceous, margin membranous, 6.5-7 mm long; lower lemma broadly ovate, apex acuminate, 5.5-6 mm long, lower palea ovate, apex acuminate, 2-nerved, 4.5-5 mm long, upper lemma ovate, apex acute, 4.5-5 mm long, upper palea ovate, apex acute, 2-nerved, 4.5-5 mm long. Staminate spikelets in sessile-pedicellate pairs, rachis ca. 5 mm long, pedicel ca. 2 mm long; lower glume ellipse, apex round, coriaceous, 19-nerved, ca.7.5 mm long, 2-keeled, keels hispidulate; upper glume ovate, apex acute to truncate, membranous, ca.7.5 mm long; lower glume ovate, apex truncate, membranous, 3-nerved, ca. 7.5 mm long, lower palea lanceo-ovate, apex truncate, membranous, 2-nerved, ca. 7.5 mm long; upper lemma ovate, apex truncate, membranous, 1-nerved, ca. 7 mm long, upper palea lanceolate, apex truncate, membranous, 2-nerved, ca. 7 mm long; anthers 3, 4.5-5 mm long.

引證標本

Nantou Co., Yuchih Town, Peacock Garden, 12 Dec. 2007, M.-J. Jung 2041 (TAIF), at the same loc., 17 Mar. 2008, M.-J. Jung 2458 (TAIF); Shueishe, 5 Mar. 2008, M.-J. Jung 2419 (TAIF), at the same loc., 17 Mar. 2008, M.-J. Jung 2455 (TAIF).

參考文獻

• Ming-Jer Jung, Chien-Wen Chen, Shih-Wen Chung and Chang-Sheng Kuoh. Taiwania 54(1): 69-75.