Lungwort

n.

1.

(Bot.) An herb of the genus Pulmonaria (Pulmonaria officinalis), of Europe; - so called because the spotted appearance of the leaves resembles that of a diseased lung. Cow's lungwort mullein. Sea lungwort Mertensia maritima, found on the seacoast of Northern Europe and America. Tree lungwort a lichen (Sticta pulmonacea) growing on trees and rocks. The thallus is lacunose, and in appearance somewhat resembles the lungs, for diseases of which it was once thought a remedy.