Short to medium height roughly hairy plant. It is stoloniferous with erect flowering stems. The basal leaves are rounded or heart shaped and long stalked. Although similar, the stem leaves are narrower and short stalked – half clasping the stem. Flowers are deep purple-blue, erect bells, 15 to 30 mm long in tight terminal clusters, sometimes with a few flowers below.

Grassy open habitats usually on calcareous soils. It also occurs as a garden escape on roadsides and waste ground.

Flowers June to August.

Perennial.

Local but widespread in much of Britain.

Very infrequent in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 6 of the 617 tetrads.