''Papaver dubium'' is a species of

poppy A poppy is a flowering plant in the subfamily Papaveroideae of the family Papaveraceae. Poppies are herbaceous plants, often grown for their colourful flowers. One species of poppy, '' Papaver somniferum'', is the source of the narcotic drug ...

known by the common names long-headed poppy and blindeyes. It is an annual species which prefers sandy soils without lime. It is native to Europe, North Africa and south-western Asia and widespread as an introduction in America and elsewhere.

Description

''Papaver dubium'' is a variable annual, growing to about 60 cm in height. It generally flowers in late spring to mid-summer. The flower is large (30–70mm) and showy, with four petals that are lighter red than in the similar ''

Papaver rhoeas ''Papaver rhoeas'', with common names including common poppy, corn poppy, corn rose, field poppy, Flanders poppy, red poppy, and Odai, is an annual herbaceous species of flowering plant in the poppy family Papaveraceae. It is native to north Afr ...

'', and most commonly without a black spot at the base. The flower stem is usually covered with coarse hairs that are closely appressed to the surface, helping to distinguish it from ''P. rhoeas'' in which the hairs are more usually patent, held at right angles to the stem. The capsules are hairless, elongated to more than twice as tall as they are wide, tapering slightly at the tip, with a stigma generally less wide than the capsule. The plant exudes white to yellowish

latex Latex is an emulsion (stable dispersion) of polymer microparticles in water. Latices are found in nature, but synthetic latices are common as well. In nature, latex is found as a wikt:milky, milky fluid, which is present in 10% of all floweri ...

when the tissues are broken. The species can form a long-lived

soil seed bank The soil seed bank is the natural storage of seeds, often dormant, within the soil of most ecosystems. The study of soil seed banks started in 1859 when Charles Darwin observed the emergence of seedlings using soil samples from the bottom of a lak ...

that can germinate when the soil is disturbed. A nearly black-flowering hybrid, known as Evelina, was bred in Italy in the late 1990s, with ''

'', but does not appear to be available commercially.

Gallery

File:Дългоплоден мак.jpg, White-flower variety File:Bleke klaproos bloem Papaver dubium.jpg, Flower File:Papaver dubium1.jpg, Fruit File:Papaver dubium capsules.jpg, Capsules

References

External links

Mohn.tk (German)
dubium Plants described in 1753 Taxa named by Carl Linnaeus {{papaveraceae-stub