https://www.diggingdog.com/plant.php/P-1856
Pulmonaria angustifolia ‘Blaues Meer’ at Digging Dog Nursery
Lance-shaped dark green leaves create a handsome solid-colored bed for nodding clusters of vivid cobalt blue funnel-shaped flowers atop short stalks
pulmonaria angustifoliadiggingdognursery
https://herbar.nhg-nuernberg.de/biodiv/index.php?action=viewSchede&bogennr=9458
NHG-Herbar - Pulmonaria angustifolia
pulmonaria angustifolianhgherbar