Glabrous perennial. Stem erect, 40-70 cm, simple, ± striate. Basal leaves lanceolate to oblong-obovate, crenulate-dentate, obtuse or acute, attenuate into 7-12 cm petiole; cauline linear-lanceolate, acuminate, 7-10 x 0·3-0·6 cm, sessile. Inflorescence of few axillary or terminal, shortly pedicellate, slightly drooping flowers. Ovary obconical, 4-5 mm, glabrous or rarely setulose. Calyx lobes lanceolate, acute, 10 x 3-4 mm, spreading-erect, persistent, erect in fruit, glabrous. Corolla broadly campanulate, 4-5 cm, 5 cm diam., divided to 1/2 into short broadly triangular lobes; glabrous, blue, rarely white. Style as long as corolla. Stigmas 3, 1/2 as long as style. Capsule erect, ovoid-obconical, 7 x 4 mm, glabrous or rarely setulose, opening by 3 ± apical pores. Seeds ovoid, 1 x 0·5 mm, brown, shiny. FI. 6-8. Meadows, forest clearings and margins, 10-2000 m.
Most of Europe, C. & S. Russia. Euro-Sib. element.