Description from Flora of China
Herbs perennial. Rhizomes enlarged, succulent. Stems erect, 40-50 cm, angles and nodes sparsely retrorse pilose-hispid. Petiole of stem leaves 1-4.5 cm; blade oblong-ovate, 4.5-8 × 2.5-3 cm, sparsely pilose-hispid, densely so on abaxial veins, base shallowly cordate or rounded, margin coarsely crenate-serrate, apex obtuse. Spikes 5-18 cm; verticillasters 4-6-flowered, widely spaced; bracteoles few, less than 0.5 mm, early deciduous. Pedicel ca. 1 mm. Calyx obconical, ca. 5.5 mm, densely puberulent, glandular, conspicuously 10-veined; tube ca. 4 mm; teeth deltate to lanceolate-triangular, equal, 1.5-3 mm, margin glandular puberulent. Corolla ca. 1.1 cm; tube ca. 7 mm, cylindric, apex puberulent; upper lip straight, oblong-ovate, ca. 4 × 2.5 mm; lower lip horizontally spreading, ovate, ca. 5 × 4 mm; middle lobe narrowly ovate, ca. 1.5 mm wide, sparsely puberulent; lateral lobes ovate, ca. 1.5 mm wide. Stamens included; filaments puberulent below middle. Ovary black-brown, glabrous. Fl. Apr-May.
* Broad-leaved forests, waste areas, wet grasslands; 200-700 m. Fujian, Guangdong, Guangxi, Hubei, Hunan, Jiangxi, Zhejiang.