生活型

herb

形態特徵

• Annual glabrous herbs, stems ascending, to 20 cm tall, branches pubescent.
• Leaves petiolate, ovate-oblong to ovate, 6–20 mm long, 4–15 mm wide, pinnately nerved, apex obtuse, base rounded to subcordate, margins serrate, glabrous except pubescent on midrib and along margin; petiole 1–8 mm long.
• Flowers solitary, axillary; pedicel longer than subtending leaves, 8–30 mm long. Calyx tubular, 5-dentate, 3–6 mm long, pubescent along veins. Corolla purple, 7–12 mm long. Stamens 4, all fertile; anterior filaments each with a linear spur near base.
• Capsule ellipsoid, enclosed within the persistent calyx, 3–5 mm long.

分布

• 台灣 : in fields and roadsides at low elevations.
• 世界 : Nepal, India, Sri Lanka, Indochina, China, Japan, Malesia, Micronesia, Papua New Guinea, Polynesia, and Australia.

引證標本

TAIPEI: Kueishan to Huoshawchang, Hsu & Hsu 3466; Taipei, Chen 111. TAOYUAN: Taoyuan, Huang et al. 8655. MIAOLI: Tahu, Chen 24; Tongshiau, Kao 5685. TAICHUNG: Tachia, Kao 9705; Wufeng, Peng 931. CHIAYI: Chiayi, Kao 10583. TAINAN: Tawan, Kao 10498. PINGTUNG: Sehmen, Kao 7122. TAITUNG: Chihpen, Koyama et al. 6730; Lanyu, Huang & Kao 5356. HUALIEN: Sanmin, Kao 9593.

引用文獻

• LIU, Ho-Yih, Flora of Taiwan, second edition 4: 605. 1998.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)