生活型

herb

形態特徵

• Annuals; culm glabrous, 20-80 cm long, decumbent, branched from basal nodes.
• Blade 6-15 cm long, 3-8 mm wide, margins scabrous; sheath slightly keeled, shorter than internode; ligule absent.
• Panicle 5-15 cm long, racemes distantly spaced on central axis, 1-2 cm long. Spikelets hispid, 2-3 mm long, awnless or minutely awned; glumes and lower lemma glabrous to scabrous-pubescent, veins scabroushispid; lower glume 1/3 to 1/2 as long as spikelet, 3-veind; upper glume subequal to lower lemma, mucronate to awn-pointed, 5-veined, flattened abaxially, enclosing a hyaline palea of equal length; upper lemma rounded abaxially, smooth and shining; anther ca. 0.8 mm long.

分布

• 台灣 : common in roadside, abonded fields and ochards.
• 世界 : Tropical Asia and Africa.

引證標本

TAIPEI: Taipei, Hsu 15. MIAOLI: Tapu, Hsu 482. TAICHUNG: Kukuan, Hsu 693. YUNLIN: Taishi, Hsu 694. CHIAYI: Chiayi, Shimada s. n. TAINAN: Tainan, Kao 288. KAOHSIUNG: Chiuchitang, Chuang 1534. PENGHU: Tungliang, Cheng s. n. PINGTUNG: Fangliao, Hsu 498. TAITUNG: Lutao Is., Sasaki s. n.

參考文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 474. 2000.  (Fl. Taiwan 2nd edit.)