生活型

herb

形態特徵

• Suffrutescent herbs to 1 m tall, glabrous, much branched, branches often zigzag, winged.
• Leaves variable in size and shape, those on ordinary branches long-petiolate, oblong-ovate, up to 18 cm long, 5 cm wide, tapering points, margins serrate, leaves on flowering branches much smaller, sessile or subsessile, ovate to transversally subrotund to kidney-shaped, base usually cordate.
• Flowers crowded in spikes; bracts small, obtuse; bracteoles linear, usually glandular-pilose; calyx to 1 cm long, segments linear; corolla bluish purple, ca. 4 cm long, glabrous outside, hirsute within on posterior side, limb 5-lobed, lobes orbicular, outside, emarginate; stamens didynamous, longer filaments ca. 7 mm long, retrorsely hirsute, filaments ca. 2 mm long, glabrous; ovary obovoid; style up to 3 cm long, pubescent with short glandular hairs.
• Capsule linear-cylindric, ca. 2 cm long; seeds oblong-ovate, compressed, appressed pilose.

分布

• 台灣 : Widely distributed in the center and south from 800 to 2000 m. Also on Lanyu Island.

引證標本

HSINCHU: Huang 2085. NANTOU: Chitou, Hsieh 812; Chingshuikou, Huang 953. KAOHSIUNG: Tienchih, Kao 7539; Meishan, Hsieh 200. PINGTUNG: Wutai, Hosokawa 5423. TAITUNG: Lanyu Is., Sasaki s. n. in 1926, Chang 6154. HUALIEN: Mukuashan, Nakamura 4441.

參考文獻

• HSIEH, Chang-Fu and HUANG, Tseng-Chieng, Flora of Taiwan, second edition 4: 680. 1998.  (Fl. Taiwan 2nd edit.)