An annual, biennial or short-lived perennial herb of dry grassy places and grassland-scrub mosaics, chiefly near the sea; its habitats include cliff-slopes and coombes, path and field margins, roadsides, railway banks and old quarries. It appears to favour warm, sheltered, S.-facing slopes and relatively infertile, drought-prone soils. Lowland.
L. bienne is much more frequent, or much more frequently recorded, than in the 1962 Atlas. The additional records are balanced by losses from some inland squares due to habitat destruction and intensification of grassland management.