Perennial herb, grayish due to a short straight hairs with numerous shoots 15-30 cm long flowering shoots upward, barren-recumbent. The leaves are 1-2 cm long and 3-8 mm wide, oblong-lanceolate or lanceolate-linear, with cuneate base, crenate at the edges, with short petioles. Flowers in dense racemes many-emerging from the axils of the upper two to four leaves. Bracts linear-lanceolate, slightly longer than the peduncles. Calyx divided into five linear-lanceolate unequal shares, two anterior lobe twice as long as three rear, of which the average is even shorter, usually less noticeable. Corolla pale blue or bluish-purple, with a diameter of 6-8 mm, with rotate chetyrehlopastnym limb; one blade rounded-ovate, two broadly ovate, acute, another (middle bottom) egg-shaped, blunt, shorter than others. Fruit-obovoid capsule, with the length (3-5 mm), exceeding the width, glabrous or shortly pubescent, apex with a shallow groove. Seeds are round, about 1 mm in diameter, yellowish. Blooms in May and July, the fruits ripen in June-August.
Range of the species is almost entirely located in Europe. In our country grows in the European and in the steppe and forest-steppe zone of Western Siberia. In Central Russia this plant is found in all areas.
Grows in steppes, dry meadows, forest edges, clearings in the pine forests, the embankments of railways.