生活型

herb

形態特徵

• Annual herbs. Stems erect or ascending, thinly to densely simple pubescent.
• Leaves mostly in verticils of 3-5, simple pubescent to nearly glabrous; petiole 0.1-0.8 cm long; blade elliptic to oblong-obovate, obtuse to short mucronate, 0.5-4.0 cm long, 3-15 mm wide.
• Pedicel 3-15 mm long; sepals oblong, obtuse, 3-5 mm long, glabrous; stamens 3-4; styles 3-4.
• Capsules ellipsoid, 3 or 4-valved.

分布

• 台灣 : a common weed at low altitudes in the southern part of the island.
• 世界 : Tropical Asia, Hainan, tropical Africa and Australia.

引證標本

TAINAN: Chiayi farm, Huang & Huang 14175; Wushantou, Huang 2825. KAOHSIUNG: Tahu, Kao 10664. PINGTUNG: Likan, Kao 10098.

參考文獻

• LIU, HO-YIH, Flora of Taiwan, second edition 2: 326. 1996.  (Fl. Taiwan 2nd edit.)