Phylum: Magnoliophyta - Class: Equisetopsida - Order: Asterales - Family: Asteraceae
Blue Lettuce, Lactuca perennis, grows to a height of about 0.6m. This erect, branching hairless perennial plant has grey-green leaves and its violet-blue flowers are typically 3-4cm across
Blue Lettuce is found in many central and southern European countries as well as parts of North America. The specimens shown on this page were photographed in central France. In the UK Blue Lettuce is known only as a garden flower, and it is not likely to survive in the wild because it does not tolerate frosts.
This is a wildflower of dry calcareous rocky habitats and favours sunny locations; it is found in hills and mountains at altitudes up to about 2000m.
Blue Lettuce can usually be seen in flower between April and August.