Łódź, Stoki

The insect is probably sawfly. Native to Eurasia. Edible plant - the leaves are spicy enough to make wasabi but can also be mixed into salads and other dishes. Herbal plant - the leaves and the flowers are used in the treatment of scurvy and scrofula. Useful plant - this plant is allelopathic against other species growing around it, it produces chemicals that inhibit the germination of seeds of other species.