Description from Flora of China
Calamintha clipeata Vaniot; Mosla fordii Maximowicz; Orthodon chinensis (Maximowicz) Kudo; O. fordii (Maximowicz) Handel-Mazzetti.
Herbs erect. Stems 9-40 cm tall, much branched from base or unbranched, white pilose. Petiole 3-5 mm, sparsely pubescent; leaf blade linear-oblong to linear-lanceolate, 1.3-2.8(-3.3) cm × 2-4(-7) mm, sparsely pubescent, impressed brown glandular, adaxially olive green, abaxially greenish, base attenuate to cuneate, margin remotely shallow serrate, apex acuminate to acute. Racemes terminal, capitate, 1-3 cm; bracts overlapping, rarely lax, circular-obovate, 4-7 × 3.5 mm, pilose, abaxially impressed glandular, ciliate, palmately 5-veined from base, margin entire, apex caudate. Pedicel sparsely pubescent. Calyx ca. 3 × 1.6 mm, white lanate, glandular, white lanate beyond throat inside, glabrous below throat; teeth 5, subulate, ca. 2/3 as long as calyx. Corolla purple-red, reddish, to white, ca. 5 mm, slightly longer than bracts, puberulent outside, sparsely puberulent on tube below lower lip inside, otherwise glabrous. Stamens included. Pistil included. Nutlets gray-brown, globose, ca. 1.2 mm in diam., glabrous, pitted with small depressions. Fl. Jun-Sep, fr. Jul-Nov.
Grassy slopes, forests; 0-1400 m. Anhui, Fujian, Guangdong, Guangxi, Guizhou, Hubei, Hunan, Jiangsu, Jiangxi, Shandong, Sichuan, Taiwan, Zhejiang [Vietnam]