生活型

herb

形態特徵

• Herbs to 50 cm tall, covered with septate hairs; stems erect, square, angles rounded, joints grooved, villous, densely so on younger parts.
• Leaves petiolate; petioles villous, 3–8 cm long; blades 2–6 cm long, 1–2 cm wide, elliptic to ovate, base cuneate, apex acute, margins serrate, both surfaces villous, lower surface glandular dotted, veinlets prominent beneath.
• Inflorescences of cymes forming dense cylindric terminal spikes, to 10 cm long; bracteoles ovate, puberulent along the margins. Flowers sessile; calyx campanulate, minutely hairy, glandular dotted, 5-toothed, teeth equal, triangular, puberulent on margins; corolla tubular, minutely hairy on upper parts, 4-lobed, lobes ovate; stamens 4, inserted in throat, anthers 1-celled, filaments puberulent; stigma tapering.
• Nutlets ovoid, 3-ribbed, acute at apex, smooth.

物候

Flowering time from July to November.

分布

• 世界 : southeastern Asia.

引證標本

TAIPEI: Yinhotung, Cheng 1583. ILAN: Lotung, Hiratuka s. n. 1910. TAOYUAN: Sasaki s. n. 1908. TAICHUNG: Nittan, Kudo & Sasaki s. n. 1929. NANTOU: Chekuanliau, Huang 3480*. PINGTUNG: Matuda s. n. 1915.

引用文獻

• HUANG, Tseng-Chieng, HSIEH, Tsung-Hsin and CHENG, Wu-Tsang, Flora of Taiwan, second edition 4: 508. 1998.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)