Herbs erect, 10-50 cm tall. Stems pyramidally branched from base; branches at 45°, white floccose. Petiole 2-8 mm, white floccose; leaf blade lanceolate, 0.3-2(-4) cm × 2-4(-13) mm, adaxially sometimes tinged purplish red, puberulent, abaxially villous, yellowish glandular, base attenuate, margin serrate, apex acuminate. Spikes 1.2-4 cm; verticillasters many flowered; bracts subcircular, ca. 4.5 × 4 mm, white villous abaxially, glabrous adaxially, purplish veined, margin ciliate, apex mucronate. Calyx tubular, ca. 2.5 mm, white villous, glandular outside; anterior teeth longer, apex spinescent, margin ciliate. Corolla purple, ca. 6 mm, white villous, glandular outside; upper lip emarginate, margin densely villous; lower lip slightly spreading, middle lobe circular, margin entire, apex mucronate; lateral lobes arcuate, margin sparsely ciliate. Anthers dark purple. Nutlets dark brown, oblong, ca. 1.2 mm. Fl. and fr. Sep-Nov.

Used medicinally.

* Hills, grassy areas; 2800-3300 m. Sichuan, Yunnan