Description
It is biennial, similar to prickly lettuce Lactuca serriola but taller - it can grow to 200 cm. It is also stouter, the stem and leaves are more purple flushed, the leaves are less divided, but more spreading.
The achene is purple black, without bristles at the tip. The pappus is the same as Lactuca serriola.
It flowers from July until September.
Read more about this topic: Lactuca Virosa
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