Pulmonaria, Pulmonaria, Pulmonaria
- Newspaper article by Tony Avent on the use of lungworts in the garden, with notes on the relative merits of various species, hybrids, and cultivars.
- http://www.plantdelights.com/Tony/pulmonaria.html

Pulmonaria
- Provides general information on botany, propagation, and cultivation, descriptions of various species, and a list of cultivars in the trade.
- http://hardyplants.com/Pulmonar.htm