生活型

herb

形態特徵

• Annual, 18–50 cm tall. Stems branched or unbranched, glabrous or sparsely puberulous.
• Petiole 0.5–1.5 cm long; leaf blade oblique, narrowly ovate, 3–13.7 cm long, 1.3–6 cm wide, adaxially glabrous, or sparsely puberulous near marginss, abaxially glabrous, base subcuneate on one side, subauriculate on other, margins entire to undulate, apex acuminate; lateral veins 5–11 on one side, 8–15 on other.
• Cymes pseudoterminal or axillary, 6–35-flowered; apically appressed puberulous; peduncle 2–8 cm long, glabrous; bracts linear, 1.5–2 mm long. Pedicel 1–3 mm long, appressed puberulous or glabrous. Calyx often tinged blue, 4–5.5 mm long, subglabrous, lobes 1.5–2.5 mm long. Corolla pale blue, glabrous outside, puberulous near mouth inside, tube cylindrical, 5–6 cm long, mouth 1.5–2 mm in diam., upper lip 1.5–2 mm long, lower lip undivided, 3.5–5 mm long. Disc ca. 1 mm tall. Stamens 2, glabrous; filaments linear, ca. 2 mm long; anthers 0.7–1 mm long, thecae nearly parallel; staminodes 2, ca. 0.8 mm long. Gynoecium ca. 6.5 mm long, glabrous; style 4–5 mm long.
• Capsule 3–4 mm long. Seeds widely fusiform, ca. 0.3 mm long.

物候

Flowering July to October, fruiting August to November.

分布

• 台灣 : in forest marginss, caves, shaded cliffs at low and middle elevations.
• 世界 : Endemic to China (western Guangxi, southwestern Guizhou, southwestern Sichuan and Yunnan).

引證標本

ILAN: Chilanshan, Ying s. n. 1992. HSINCHU: Wufeng, Peng 8393. MIAOLI: Tahu, Kawakami & Hayata 6. TAICHUNG: Pahsienshan, Suzuki s. n. 1929; Anmashan, Liu et al. 132; Kukuan, Huang 3172; Shihchiaoshan, Kawakami & Mori 1227. NANTOU: Chushan (Rinkiho), Inaba s. n. 1911; Kueitzutou, Nakahara s. n. 1905; Luantashan, Kawakami, Hayata & Mori 7098; Puli, Kawakami, s. n. 1916; Wushe, Suzuki 2785; Chitou, Kao 7730; Kuangtaochi, Hsieh & Wu 1492; Meiyuanshan, Sasaki s. n. 1935. CHIAYI: Fenchifu, Feung & Kao 4942; Alishan, Sasaki s. n. 1928; Chishinliao, Yeng & Kao 10732; Sukou, Yen 1535. TAINAN: Tongshan, Yen 1823; Tsengwendam, Huang & Yang 4414. KAOHSIUNG: Shoushan, Yang 189; Maolin, Tsou s. n. 1976; Tengchih, Huang et al. 14401. PINGTUNG: Wangchingtsun (Bankinsing), Henry 1085; Chinshuiying, Yang 23989.

參考文獻

• LI, Zhen-Yu and KAO, Muh-Tsuen, Flora of Taiwan, second edition 4: 704. 1998.  (Fl. Taiwan 2nd edit.)