Herbs perennial, 30--70 cm tall, not drying black. Roots fascicled, fibrous. Stems often single, erect, many branched apically, sparsely pubescent or subglabrous. Stem leaves numerous, petiolate or uppermost sometimes sessile; petiole (0--)2--12 mm, glabrous or pubescent; leaf blade ovate to oblong-lanceolate, 2.5--5.5 X 1--2 cm, membranous to papery, glabrous or sparsely pubescent, base broadly cuneate to rounded, margin crenate or serrate, apex acuminate. Flowers axillary. Pedicel short or absent. Calyx 6--9 mm, glabrescent; lobes 2, broad, entire. Corolla pink to purple or yellowish, 2--2.5 cm; tube straight, 1.2--1.5 cm; galea falcate; beak conical, ca. 3 mm; lower lip slightly longer than galea, ciliate. 2 filaments pubescent, 2 glabrous. Capsule obliquely oblong-lanceolate, 1.1--1.6 cm, slightly longer than calyx. Fl. Jun--Aug, fr. Jul--Sep. 2n = 16, 32.

Grassy slopes, open forests; 300--2000 m. Anhui, Gansu, Guangxi, Guizhou, Hebei, Heilongjiang, Hubei, Jilin, Liaoning, Nei Mongol, Shaanxi, Shandong, Shanxi, Sichuan, Zhejiang [Japan, Kazakhstan, Korea, Mongolia, Russia]