Lycopus formosanus (Hayata) Sasaki; L. lucidus var. formosanus Hayata.

Stems hirtellous along angles, densely hirsute on nodes. Leaf blade lanceolate, dark green, densely minutely hispid-hirsute adaxially and mainly on veins abaxially, base attenuate, margin serrate, ciliate, apex attenuate.

Marshy areas; 300-2400 m. Anhui, Fujian, Gansu, Guangdong, Guangxi, Guizhou, Hebei, Heilongjiang, Hubei, Hunan, Jiangsu, Jiangxi, Jilin, Liaoning, Nei Mongol, Shaanxi, Shandong, Shanxi, Sichuan, Taiwan, Yunnan, Zhejiang [Japan, Russia].