Context: The extreme and stressful climatic conditions give way to the growth of plant species with secondary metabolites important for medicinal purposes. Origanum vulgare, Prunella vulgaris, Solanum nigrum and Urtica dioica are some of the more useful medicinal species found in the Alps.

Question: What gives way to the growth of plant species with secondary metabolites important for medicinal purposes?
Answer: extreme and stressful climatic conditions

Question: Origanum Vulgare has what useful properties?
Answer: medicinal

Question: Where are Urtica dioica found?
Answer: the Alps