生活型

herb

形態特徵

• Herbs or suffruticose plants, to 1 m tall, covered with septate hairs; stems stout, square, angles obtuse, villous and glandular-hairy.
• Leaves petiolate; petioles 1–2 cm long, villous and glandular-hairy; blades 2–8 cm long, 2–6 cm wide, ovate to broadly ovate, base subcordate or cordate, apex obtuse, margins serrulate, both surfaces puberulent and glandular dotted.
• Inflorescences of verticillate cymes, peduncles to 1 cm long, puberulent. Flowers subsessile; calyx campanulate, 5-toothed, puberulent, densely so at base and on throat, glandular hairy and dotted, 2–4 mm long, teeth equal, spine-like; corolla tubular, limb bilabiate, puberulent, 5–7 mm long, upper lip obcordate, lower lip 3-lobed, central lobe very broadly ovate, cymbiform, lateral lobes ovate; stamens 4, included, filaments minutely hairy, anthers 2-celled; stigma short, bifid.
• Nutlets compressed, broadly obovoid, truncate and emarginate at apex, mucronate, 3–4 mm long, 2–3 mm wide.

分布

• 世界 : tropical regions worldwide.

引證標本

TAIPEI: Botanical Garden, Ku s. n. 1935. MIAOLI: Sanyi, Huang 4825. TAICHUNG: Tachiwnshi, Sasaki s. n. 1932*. NANTOU: Chekwankiao, Huang 3483. TAINAN: Houpi, Simada 54240. KAOHSIUNG: Liukuei, Hosokawa 1830. PINGTUNG: Hsiaoliuchiu Is., Cheng 1136. TAITUNG: Tawu, Cheng & Kao 627.

參考文獻

• HUANG, Tseng-Chieng, HSIEH, Tsung-Hsin and CHENG, Wu-Tsang, Flora of Taiwan, second edition 4: 466. 1998.  (Fl. Taiwan 2nd edit.)