Description from Flora of China
Herbs perennial. Stems ascending, 25-35 cm tall, lanate-villous, with hairs 1-1.5 mm, branched from base. Leaves subsessile basally, sessile apically; leaf blade obovate to oblong, 1.2-3 × 0.4-1.2 cm, adaxially appressed villous, abaxially spreading villous mainly along veins and glandular, base rounded to broadly cuneate, margin remotely 3-6-crenate to coarsely 3-6-serrate, apex obtuse. Verticillasters 2-6-flowered, inserted on all but basal nodes. Pedicel 4-5 mm. Calyx tubular-campanulate, ca. 2.8 mm, very swollen in front at base, villous and glandular villous outside; teeth triangular, ca. 1/2 as long as calyx, with anterior 2 slightly narrower. Corolla purple, ca. 6 mm, pubescent outside; limb with a tuft of hairs inside, middle lobe oblong, undulate, lateral lobes obliquely ovate-triangular. Ovary white barbate. Nutlets ovoid, ca. 1 mm, slightly netted. Fl. Jul-Aug, fr. Sep.
Used to treat wounds and as an antihydroptic.
Moist areas; ca. 1000 m. Gansu, Xinjiang [Russia; Europe]