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.
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.
Pulmonaria officinalis, a weedy perennial herb with hairy stems and white-spotted leaves. It is also called Pulmonaire, Spotted Dog, Bethlehem Sage and Soldiers and Sailors.