生活型

herb

形態特徵

• Annuals; culm weak, base decumbent, branching, 50-100 cm tall.
• Blade linear, 8-20 cm long, 50-12 mm wide; sheath more or less pilose; ligule membranaceous, 1-3 mm long, truncate.
• Inflorescence in subcontracted 3-8 digitate racemes, recemes 5-15 cm long; rachis 0.6-1 mm wide, margins serrate. Spikelets suppressed on one side of rachis, ca. 3 mm long, greenish or purplish; pedicels unequal, triangular, serrate; lower glume minute but distinct, ca. 2 mm long, triangular; upper glume lanceolate, 1/2-3/5 as long as spikelet, narrow, margins ciliate, 3-veined; lower lemma broadly lanceolate, strongly 5-7 veined, membranaceous, lateral intervein spaces appressedly pubescent, hairs sometimes spreading at maturity but connected at apex; upper lemma lanceolate, coriaceous, pale green to yellowish brown, as long as lower lemma; anther ca. 0.9 mm long.

分布

• 台灣 : in wayside and open ground, also cultivated as a fodder grass.
• 世界 : The tropical and warm temperate regions of the world.

引證標本

ILAN: Chiaochi, Hsu 832; Tali, Hsu 810. TAIPEI: Kankou, Hsu 642. TAOYUAN: Neili, Hsu 1220. MIAOLI: Chunan, Hsu 736; Tapu, Hsu 603. TAICHUNG: Pashienshan, Hsu 419. CHIAYI: Alishan, Huang 1774. TAINAN: Hsinhua, Hsu 718. KAOHSIUNG: Fengshan, Suzuki 4287. PINGTUNG: Fengkang, Hsu 1184. TAITUNG: Chihpen, Hsu 315; Lutao Is., Kudo & Mori 199. HUALIEN: Milun, Yamamoto 3251.

引用文獻

• HSU, Chien-Chang, Flora of Taiwan, second edition 5: 466. 2000.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)