生活型

herb

形態特徵

• Annual herbs to 50 cm tall; stems erect, much branched, branches ascending, farinose when young.
• Leaves with petiole 5-30 mm long, broadly linear to narrowly ovate, 1-5 cm long, 5-25 mm wide, obtuse to acute at apex, cuneate at base, sinuate to dentate with lowest pair of teeth lobelike, leaf margins parallel above the basal lobes at least to next pair of teeth, farinose beneath.
• Inflorescence a terminal leafy panicle of spikes, 4-12 cm long; tepals 5, obovate, ca. 1 mm long, with a broad central green band.
• Utricles depressed-globose, smooth; seeds oriented horizontally, lustrous, black,

分布

• 台灣 : a common weed at low and middle elevations.
• 世界 : A cosmopolitan weed.

引證標本

MIAOLI: Yuenli, Hsu 5280. TAICHUNG: Lishan, Kuo 7503. NANTOU: Chingshuikou, Huang 717. YUNLIN: Hsutsoliao, Tang 705; Taihsi, Tang 237. CHIAYI: Fengchihu, Huang & Huang 13997. TAINAN: Hsuchchia, Kao 10396. PENGHU: Chimetao, Huang s. n. PINGTUNG: Fongkang, Yang 1274; Hsiaoliuchiu, Lin 631.

引用文獻

• LIU, HO-YIH, Flora of Taiwan, second edition 2: 385. 1996.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)