生活型

herb

形態特徵

• Herbs, to 50 cm tall, covered with septate hairs; stem square, branched, puberulent.
• Leaves sessile or petiolate; petioles minutely hairy, 1–3 mm long; blades 3–7 cm long, 0.7–1.5 cm wide, narrowly ovate or oblong, base truncate or subcordate, apex obtuse.
• Inflorescences of verticillate cymes forming terminal or axillary racemes, 8–12 cm long; foliaceous bracts 2–3 cm long on lower part of stem, 2–5 mm long on upper part of stem. Flowers pedicellate; pedicels ca. 1 mm long; calyx campanulate, puberulent, 5-toothed, 6–7 mm long, teeth equal, triangular, aristate; corolla tubular, bilabiate, minutely hairy on limb, glabrous or minutely hairy on outside of tube, with a ring of hairs inside, 5–6 mm long, upper lip obovate or oblong, lower lip 3-lobed, central lobe broadly ovate, 2 lateral lobes ovate or oblong; stamens 4, filaments minutely hairy.
• Nutlets ovoid, truncate at apex.
• in northeast India, Japan, Korea and mainland China.

物候

Flowering in April.

引證標本

HSINCHU: Sinko, Kawakami 23007. MIAOLI: Poren, Huang 5275. PINGTUNG: Katokyaku, Kawakami s. n. 1906*.

引用文獻

• HUANG, Tseng-Chieng, HSIEH, Tsung-Hsin and CHENG, Wu-Tsang, Flora of Taiwan, second edition 4: 432. 1998.  (Fl. Taiwan 2nd edit., 台灣植物誌第二版)
• Huang and Cheng, Flora of Taiwan 4: 526. 1978.  (Fl. Taiwan, 台灣植物誌)