生活型

herb

形態特徵

• Culms tufted, branching and rooting at lower nodes, flowering culm 30-60 cm long.
• Blade linearlanceolate, 2-8 cm long; sheath shorter than internode, ciliate on margins; ligule a ring of hairs.
• Panicle open, with yellowish glandular bands on panicle branchlets. Spikelets sometimes purplish, ca. 2 mm long, glumes broadly elliptic, slightly shorter than spikelet, nerves obscure, glabrous or hispidulous toward obtuse apex; lower floret staminate, slightly larger and of a thinner texture than glabrous or pubescent upper floret; anther ca. 0.9 mm long.

分布

• 台灣 : common on plains, in rice fields and in shallow water. Acceptable to grazing animals and since it is common it is of considerable importance. Sometimes a troublesome weed in rice fields.
• 世界 : Widely distributed from southeastern Asia to Japan and Australia.

引證標本

TAIPEI: Yangmingshan, Hsu 939. ILAN: Chiaochi, Hsu 826. TAOYUAN: Taoyuan; Suzuki 4019. MIAOLI: Senghsin, Hsu 1360. TAICHUNG: Tungshih, Hsu 574. NANTOU: Chingshuikou, Huang s. n. 30 Oct 1958. TAINAN: Liuchia, Mori 687. PINGTUNG: Pingtung, Matuda s. n. 1 Nov 1917; Nanjenshan, Wang 12743*.

參考文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 448. 2000.  (Fl. Taiwan 2nd edit.)