Stems more than 35 cm tall, unbranched, pilose. Basal leaves early deciduous; petiole of stem leaves 1-9 cm; stem leaf blades hastate-ovate, 4.5-11 × 5.3-11 cm, appressed pilose, base cordate, margin irregularly crenate, apex rounded. Verticillasters 1 (or 2), many flowered; floral leaves sessile, ovate, 4-7 × 2.2-7 cm, base rounded, apex acute; bracts few, linear-subulate, 6-12 mm, densely ciliate. Calyx tubular-campanulate, 1.1-1.2 cm × 6-7 mm, puberulent, veins sparsely minutely hispid outside; teeth double toothed at margin, puberulent, apex emarginate, with spines ca. 0.7 mm. Corolla red, ca. 1.8 cm; tube ca. 1.1 cm, glabrous except for puberulent back outside, pilose annulate inside; upper lip ca. 9 mm, densely appressed pubescent outside, margin denticulate, bearded inside, lower lip ca. 8.5 × 7 mm, puberulent outside; middle lobe obovate, ca. 5 × 4 mm, margin denticulate; lateral lobes ovate, ca. 3 × 2.5 mm. Stamens included; posterior filaments with a slender basal appendage. Nutlets glabrous. Fl. Aug, fr. Sep.

* Hills; ca. 4000 m. Yunnan.