Appearance
''Lactuca perennis'' reaches on average 60 centimetres of height, with a minimum height of 20 centimetres This plant is glabrous, the stems is erect and branched, leaves are greyish-green, the lower ones with a small petioles, the upper ones partly amplexicaul. It is hermaphrodite and entomophilous. The flowers are violet-blue, with a size of 30–40 millimetres. The flowering period extends from April through August and the seeds ripen from July until September.Habitat
These plants prefer calcareous well-drained soils and they are common on sunny rocky soils, on dry meadows, on roadsides and on banks of rivers. They can be found on average at 500–2,000 metres above sea level.References:
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