Lungwort, also known as lungwort leaf or Pulmonaria officinalis, is a natural plant that has been used around the world for a variety of respiratory ailments, including coughs, colds, bronchial detoxification and catarrhal problems.36
In the early 1600s, a theory known as the “Doctrine of Signatures” was widely accepted. Essentially the foundation of this practice was that plants resembling certain human physical attributes were believed to be beneficial to the part of the body they resembled. It was during this time that lungwort–which resembles the tissue inside the lungs–was discovered to be an effective remedy for respiratory ailments.36
Over time, the medical accuracy of many “Doctrine of Signatures” based remedies was discredited. However, modern research suggests lungwort has certain traits, specifically as an antioxidant and secretolytic that may be beneficial to lung health.