生活型

herb

形態特徵

• Annuals; culm weak, rooting from basal node, 15-50 cm tall.
• Blade glabrous, ovate to ovate-lanceolate, 3-8 cm long, 1-2.5 cm wide; sheath slightly shorter than internode, villous on margins; ligule membranaceous, ciliate at apex, ca.1 mm long.
• Panicle terminal or axillary, to 15 cm long; axils pubescent. Spikelets 3.5-5 mm long, slightly laterally compressed; glumes unequal, strongly 3-5-veined, acuminate; lower glume 2/3 as long as spikelet, with a distinct internode between it and upper glume; upper glume and lower lemma equal; lower lemma 5-veined, enclosing a palea and sometimes a staminate flower; upper lemma chartaceous-indurate, 2-2.5 mm long, obtuse, stipitate and bearing 2 scars ca. base; anther ca. 1.6 mm long.

分布

• 台灣 : very common in shady areas, especially in grassland and disturbed places.
• 世界 : India, Malesia, Indochina, China and Polynesia.

引證標本

ILAN: Bonbon, Kao 5957. TAIPEI: Chuchuhu, Hsu 221; Yangmingshan, Hsu 904. MIAOLI: Nanchuang, Hsu 12677; Taan, Hsu 680. TAICHUNG: Pahsienshan, Suzuki s. n. NANTOU: Kuantachi, Kuoh 4319; Sun Moon Lake, Hsu 1348. TAINAN: Tainan, Sasaki 380202. KAOHSIUNG: Sanping, Kuoh 4013. PINGTUNG: Nanjenshan, Hsu 7826; Shihchongchi, Hsu 13191. TAITUNG: Chihpenwenchienhoushan, Hsu 4055; Lanyu Is., Hsu 9345. HUALIEN: Hualien, Sasaki 380168.

引用文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 480. 2000.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)