生活型

herb

形態特徵

• Annuals to biennials; rhizome absent; clums branched and geniculate at lower nodes, sometimes ascending, 20-50 cm high.
• Blade slightly infolded, ca. 10-20 cm long, 4-8 mm wide; ligule a ring of hairs; sheath slightly compressed.
• Inflorescence a contracted cylindrical panicle, 4-15 cm long. Spikelets 2-3 mm long, subtended by brownish or purplish brown colored bristles, bristles 2-3-times as long as spikelet; lower glume ca. 1/3 as long as spikelet, 3-veined; upper glume ca. 1/2 as long as spikeket, 5-veined, lower lemma and upper glume subequal, 5-veined, enclosing a narrow lower palea; upper lemma coriaceous, ovate-elliptic, rugose.

分布

• 台灣 : very common in grasslands, yards and along roadsides.
• 世界 : Tropics of Old World.

引證標本

ILAN: Tali, Yang 2742. TAIPEI: Yangmingshan, Hsu 905. TAOYUAN: Jenmei, Kuo 6611. HSINCHU: Chidien, Huang 1073. TAICHUNG: Houli, Hsu 9016; Tatushan, Hsu 4656. NANTOU: Kuantaochi, Kuoh 4233. PINGTUNG: Santimen, Liu 39. TAITUNG: Lanyu Is., Hsu 9372.

參考文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 512. 2000.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)