生活型

herb

形態特徵

• Annuals; clum glabrous, geniculate, 40-80 cm tall.
• Blade broadly linear, 5-20 cm long, 2-18 mm wide; sheath ciliate on margins; ligule a ring of hairs, ca. 1.5 mm long.
• Panicle contracted, spike-like, cylindrical, 3-6 cm long; axils pubescent; sterile branches forming bristles subtending spikelet. Spikelets 2-2.5 mm long, 0.8-1 mm wide; elliptic, usually obtuse; lower glume 3-veined, ovate, ca. 1/3 as long as spikelet; upper glume 5-veined, equaling spikelet or shorter; lower lemma 5-veined, enclosing a small, narrow, lower palea; upper lemma oblong, obtuse, obscurely rugose, finely punctate.
• Anthers ca.0.7 mm long.

分布

• 台灣 : in sandy seahsores.
• 世界 : Widely distributed in the Old World.

引證標本

ILAN: Lotung, Kuoh 1716. TAIPEI: Jungiianyan, Hsu 50; Tamsui, Hsu 194. TAICHUNG: Tatushan, Hsu 10767. CHANGHU: Wanggong, Guo et al. 31. PENGHU: Shiyai, Hsu & Kuoh 1403. PINGTUNG: Nanjenshan, Huang 9516. TAITUNG: Lanyu Is., Keng 438; Lutao Is., Kawakami & Nakahara 3426.

參考文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 515. 2000.  (Fl. Taiwan 2nd edit.)