Lactuca serriola
Lactuca serriola, also known as prickly lettuce, milk thistle, or wild lettuce, is a biennial plant belonging to the Asteraceae family. It is native to Europe, Asia, and North Africa, but has naturalized in many other parts of the world.
Description[edit | edit source]
Lactuca serriola is characterized by its tall, erect stem that can reach heights of up to 200 cm. The leaves are oblong and have prickly edges, hence the common name "prickly lettuce". The plant produces yellow flowers in the summer, which turn into white, fluffy seeds that are dispersed by the wind.
Distribution and Habitat[edit | edit source]
Lactuca serriola is a highly adaptable plant that can grow in a variety of habitats, including roadsides, waste areas, and disturbed lands. It prefers sunny locations and well-drained soil. The plant is native to Europe, Asia, and North Africa, but has spread to North America, South America, Australia, and New Zealand.
Uses[edit | edit source]
Historically, Lactuca serriola has been used in traditional medicine for its sedative and analgesic properties. The plant contains a milky sap that is rich in lactucarium, a substance that has similar effects to opium but without the addictive properties. In modern times, the plant is mostly considered a weed, although it is still used in some herbal remedies.
Cultivation[edit | edit source]
Lactuca serriola is a hardy plant that can grow in a wide range of conditions. It prefers full sun and well-drained soil, but can tolerate partial shade and poor soil conditions. The plant is propagated by seeds, which can be sown directly in the ground in the spring or fall.
See Also[edit | edit source]
References[edit | edit source]
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Contributors: Prab R. Tumpati, MD