Calamintha confinis Hance, J. Bot. 6: 331. 1868; Calamintha argyi H. Léveillé; Clinopodium confine (Hance) Kuntze var. globosum C. Y. Wu & Hsuan ex H. W. Li; Satureja confine (Bentham) Kudo.

Herbs diffuse. Stems glabrous or sparsely puberulent. Leaves ovate to subcircular, 0.8-2.2(-3) × 0.5-1.7(-2.5) cm, papery, glabrous, base rounded to broadly cuneate, margin 5-7-crenate-serrate, apex obtuse. Verticillasters many flowered, globose or subglobose, 1-1.5(-1.8) cm in diam., widely spaced; floral leaves reduced; bracts minute. Pedicel 1-2 mm, puberulent. Calyx subcylindric, narrower at base, ca. 4 mm in flower, slightly dilated in fruit, glabrous or sparsely hairy along veins, throat finely pilose; teeth ciliate, upper 3 triangular, lower 2 narrowly triangular. Corolla rose to purple-red, slightly exserted, ca. 5 mm, puberulent, throat slightly hairy or subglabrous, tube ca. 1.2 mm wide at throat; lips ca. 0.6 mm, middle lobe of lower lip emarginate. Posterior stamens rudimentary. Nutlets ovoid, ca. 0.8 mm, smooth. Fl. Apr-Jun, fr. Jul-Aug.

Hillsides, grasslands, field margins; 0-500 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Henan, Hunan, Jiangsu, Jiangxi, Sichuan, Zhejiang [Japan].