Papaver (weeds)

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Papaver dubium (click on image to enlarge it)
Author(s): Carl Axel Magnus Lindman (1856–1928)
Source: Wikimedia Commons

Papaver (weeds) Linnaeus

The genus is found in temperate regions and altogether contains around 50 species. This includes several weedy poppy species which are mainly a problem in European cereal fields. Other species are grown as crops (see Papaver somniferum) or as ornamentals.

The stems are hairy and the leaves are usually lobed or dissected. Stems and leaves contain a milky latex. The flowers are red, orange or yellow with many stamens and usually on long stems. The seeds are produced in capsules which dry on the plant and scatter the many tiny seeds when they sway in the wind. The seeds survive for up to 5 years and go through a dormancy before germinating.

Currently, the following species have been entered into the system: