'Tree lungwort' definitions:

Definition of 'Tree lungwort'

From: GCIDE
  • Lungwort \Lung"wort`\, n. (Bot.) (a) 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. (b) Any plant of the genus Mertensia (esp. {Mertensia Virginica} and Mertensia Sibirica), plants nearly related to Pulmonaria. The American lungwort is Mertensia Virginica, Virginia cowslip. --Gray. [1913 Webster]
  • 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. [1913 Webster]