The Lungwort formerly held a place in almost every garden, under the name of 'Jerusalem Cowslip'; and it was held in great esteem for its reputed medicinal qualities in diseases of the lungs.

Lungwort 

(Pulmonaria officinalis)

Perennial 1 foot to 15 inches. Succeeds in any garden
soil and is best in part or full shade. Propagate by
division of roots in autumn. Plant out a foot apart.
The plants increase rapidly and should be lifted and
divided every two years.

The leaves of this plant, which are the part that has been used in medicine, have no peculiar smell, but when fresh have a slight astringent and mucilaginous taste, hence they have been supposed to be demulcent and pectoral, and have been used in coughs and lung catarrhs in the form of an infusion.

Its popular and Latin names seem to have been derived from the speckled appearance of the leaves resembling that of the lungs, and their use in former days was partly founded on the doctrine of signatures.