Pulmonaria longifolia, (Narrow-leaved Lungwort) is a semi-evergreen clump-forming herbaceous perennial plant, native to western Europe, including Britain, France, Spain, Portugal. It grows in semi-shaded habitats, such as woodland and scrub, often on rather heavy clay soils, to 2000 m above sea level. The flowers are funnel-shaped, carried in short hairy cymes in spring. The corolla is 8–12 mm long, pink turning blue or violet. The fruit is a nutlet to 4 mm long and 3 mm broad. Chromosomes 2n=14. Three subspecies have been described, but are not accepted as distinct by the Flora Europaea.