Itching in the village
The nuts of the rosehip, fruit of the dog rose (Rosa canina), are covered with fine, barbed hairs that cause itching on contact with the skin. Therefore, the nuts should not be eaten or processed. Children in particular occasionally use them to make itching powder, which hurts and itches when touched and can cause an allergy.
Wild roses are valuable nutritive and protective shrubs for many animal species. Rose hips, for example, as well as the fruits of yew, buckthorn and rowan, provide easy-to-find, vitamin-rich food for many resident birds.
Source: Wikipedia