This plant produces upright racemes of two-lipped flowers with spreading, rounded lobes in a number of different colours. Leaves linear to elliptical, untoothed, the lower leaves crowded.

A common garden plant that can escape and may persist and become naturalised in walls, waste places and quarries.

Flowers from early summer through autumn.

Perennial.

Widespread especially in southern Britain.

Occasion in Leicestershire and Rutland. In the 1979 Flora survey of Leicestershire it was found in 48 of the 617 tetrads