生活型

herb

形態特徵

• Herbs to 40 cm tall, covered with septate hairs; stems erect, square or octangonal, angles prominent, minutely and sparsely hairy.
• Leaves petiolate; petioles more or less flattened, minutely hairy; blades 5–7 cm long, 6–8 cm wide, broadly ovate, 3-lobed, base obtuse, apex acute, margins serrate or irregular incised, both surfaces minutely and sparsely hairy, densely so on veinlets, lobes 4–7 cm long, 3–4 cm wide.
• Flowers in verticillate cymes forming loose terminal racemes; bracteoles linear; calyx campanulate, bilabiate, divided 1/2–2/3 the length of the calyx, upper lip 3-toothed, teeth triangular, lower lip 2-toothed, teeth narrowly triangular, minutely hairy; corolla tubular, bilabiate, upper lip 2-lobed, lobes ovate or broadly ovate, lower lip 3-lobed, central lobes large, ovate, 2 lateral lobes obliquely ovate; stamens 4, lower pair longer.
• Nutlets obovoid, reticulate.

物候

Flowering time from July to August.

分布

• 世界 : mainland China and the Himalaya.

引證標本

TAICHUNG: Chukaoshan, Hosokawa 2227*. NANTOU: Nengkao to Tienchang, Suzuki 2570.

參考文獻

• HUANG, Tseng-Chieng, HSIEH, Tsung-Hsin and CHENG, Wu-Tsang, Flora of Taiwan, second edition 4: 514. 1998.  (Fl. Taiwan 2nd edit.)
• Huang and Cheng, Flora of Taiwan 4: 509. 1978.  (Fl. Taiwan)