形態特徵

• Perennial herb; stems erect or decumbent, 20–45 cm long.
• Basal leaves oblanceolate or spatulate, 2–8 cm long, 3–8 mm wide, sessile; cauline leaves linear or narrowly elliptic, smaller, sessile.
• Flowers solitary, terminal or axillary; calyx lobes 5, narrowly triangular, 3–4 mm long, entire; corolla 5-lobed, infundibular, 5–10 mm long, blue or rarely white; ovary 3-celled; stigma 3-lobed.
• Capsules obovate, 6–8 mm long.
• Chromosome number n = 18, 27, 36, 45.

分布

• 台灣 : in grasslands and other open areas; sea level to 3,500 m.
• 世界 : Widely distributed in eastern Asia, from India and Sri Lanka to Japan, the Philippines and Indonesia.

引證標本

TAIPEI: Nankang, Lammers 8583. ILAN: Toucheng, Peng et al. 13832. TAOYUAN: Fushin, Chuang & Kao 3135. HSINCHU: Wufeng, Peng et al. 14894. MIAOLI: Yungsing, Peng 15044. TAICHUNG: Wuling, Peng & Hsu 11078. NANTOU: Yushan, Peng & Chen 11464. CHIAYI: Paiyunshanchuang, Peng 8978. PINGTUNG: Wutoushan, Wang et al. 924. TAITUNG: Hsiangyang, Peng et al. 11828. HUALIEN: Kuanyuan, Lammers 8474.

參考文獻

• LAMMERS, Thomas G., Flora of Taiwan, second edition 4: 798. 1998.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)