生活型

herb

形態特徵

• Annuals; clum usually 20-100 cm high, geniculate.
• Blade 5-18 mm wide, thin, with nimutely tubercle-based hairs; sheath hairy or glabrous, margins ciciate; ligule a ring of hairs, ca. 1 mm long.
• Panicle contracted, cylindrical, 2-10 cm long, branches interrupted. Spikelets 1.8-2 mm long, subtended by 1-4 bristles, these 4-16 mm long, flattened in lower part, margins with barb like hairs directed downwards; lower glume ca. 1 mm long; upper glume as long as spikelet, 5-veined; lower lemma equaling spikelet, rarely with a minute lower palea; upper lemma finely and transversely rugose; anther ca.0.7 mm long.

分布

• 台灣 : common in open and waste places.
• 世界 : Tropical and temerate regions of the Old World.

引證標本

TAIPEI: Yehliu, Kuoh 2345. CHANGHUA: Lukang, Kuoh 1643. CHIAYI; Hantzyliau, Wang 20111. TAINAN: Chishan, Hsu 6472. PINGTUNG: Lioukuaitsuo, Hsu 9313. HUALIEN: Tienhsiang, Hsu 7013.

參考文獻

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