Bog violet/ dwarf marsh violet, Viola palustris

This little plant prefers a cool moist well-drained humus-rich soil in partial or dappled shade and protection from scorching winds. 

The young leaves and flower buds are edible raw or cooked.

When added to soup they thicken it in much the same way as okra.

The flowers are edible raw.

A tea can be made from the leaves.

The dried root has been used as an incense