Description from Flora of China
Perennials, (15-)50-80 cm tall, entirely with white multicellular hairs. Stems erect or ascending, simple. Leaves sessile or short petiolate; leaf blade ovate to ovate-deltoid, 2-5 X 1-3 cm, margin coarsely dentate and mostly double dentate. Racemes 1 or 2, axillary from middle and upper leaves, lax, to 20 cm in fruit; bracts broadly linear to oblanceolate, ca. 5 mm. Pedicel much shorter than bract. Calyx 4-lobed; lobes linear-elliptic, subequal, ca. 4 mm at anthesis, 5-6 mm in fruit. Corolla purple to blue, rotate, 6-10 mm in diam.; tube less than 1.5 mm; throat hairy; lobes orbicular to rhomboid-ovate. Stamens almost as long as corolla. Capsule obcordate, strongly compressed, 4-6 X 5-6 mm, ciliate with multicellular hairs, base cuneate to rounded. Style 3-4 mm. Seeds 2-10 per locule, ovate, flattened, ca. 1 mm. Fl. Jun. 2n = 46.
Valleys, forest slopes; 1500-2500 m. SE Gansu, Guangxi, Guizhou, Hubei, Hunan, Shaanxi, Sichuan, Yunnan [India, Japan, Kashmir, Pakistan].