Large-growing plant to 30 cm or more tall. Leaves to 8 cm long. Flowers relatively large, soft lavender blue on medium-length stems; spring to summer.

W Asia, C & E Europe

Grows naturally in marshy areas.

Source: McLeod, J. (1997). Violaceae. In: Spencer, R.. Horticultural Flora of South-eastern Australia. Volume 2. Flowering plants. Dicotyledons. Part 1. The identification of garden and cultivated plants. University of New South Wales Press.