Heilpflanzen. Signatur und Botschaft

How did people come to realise that medicinal plants help treat diseases? The basis is laid by what is known as the “doctrine of signatures” – through their form, colour, fragrance and site, the plants tell us what kind of medicinal effects they have. The sunny yellow St John’s wort, for example, brings light into the soul – and indeed, it has been shown to be effective in treating depression. In ...