生活型

herb

形態特徵

• Annuals; culm slender, usually decumbent and and branching below, 10-35 cm tall, nodes more or less pubescent.
• Blades ovate-lanceolate, subcordate, 3-5 cm long, 3-10 mm wide, densely pubescent on both surfaces, one of margins undulate, other side pectinate-scabrous.
• Inflorescence of racemose racemes, racemes 4-8, 4-6 cm long; rachis more or less villose, scabrous on ridges; pedicels pubescent and bearing stiff hairs as much as 0.5 mm long. Spikelets tomentose, light green but turning light yellow when mature, 2.2-2.5 mm long.
• lower glume 3-veined, ca. 1/2 as long as spikelet, triangular, acute to obtuse; upper glume and lower lemma equal, acute, 5-7-veined; lower lemma 5-veined, mucronate, enclosing a well developed palea; upper lemma pale, elliptic, mucronate, longitudinally striate and minutely papillose-rugose; anther ca. 1.1 mm long.

分布

• 台灣 : open waste places and on hill.
• 世界 : The tropics of southeastern Asia and China.

引證標本

ILAN: Nanshen, Kuoh s. n. TAIPEI: Shimen, Chuang 3389. HSINCHU: Shinchu, Utida , s. n. TAICHUNG: Wushe, Sasaki 380233. PINGTUNG: Oluanpi, Yamamoto s. n. TAITUNG : Peinan, Sasaki s. n.; Lanyu Is., Kawakami et al. 2345.

參考文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 460. 2000.  (Fl. Taiwan 2nd edit.)