Angiosperms (Flowering Plants) • Earth.com

Papaver oreophilum

(Papaver oreophilum)

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Description

Papaver oreophilum is a poppy species described by Franz Josef Ivanovich Ruprecht. Papaver oreophilum belongs to the genus of poppies, and the family of poppy plants. No subspecies are listed in the Catalog of Life. Papaver is a genus of 70–100 species of frost-tolerant annuals, biennials, and perennials native to temperate and cold regions of Eurasia, Africa and North America. It is the type genus of the poppy family, Papaveraceae. The flowers have two sepals that fall off as the bud opens, and four (or up to six) petals in red, pink, orange, yellow, or lilac. There are many stamens in several whorls around a compound pistil, which results from the fusion of carpels. The stigmas are visible on top of the capsule, and the number of stigmas corresponds to the number of fused carpels. The ovary later develops into a dehiscing capsule, capped by the dried stigmas. The opened capsule scatters its numerous, tiny seeds as air movement shakes it, due to the long stem. The typical Papaver gynoecium is superior (the flower is hypogynous) with a globular ovary. The style is characteristically absent for the type species opium poppy, and several others, although those with a style do exist. The sessile plate-like stigmata lies on top of the ovary. Pollen-receptive surfaces. The characteristic fruit type of Papaver is the unilocular capsule. The stigmatic disc rests on top of the capsule, and beneath it are dehiscent pores or valves. Papaver sect. Argemonidium includes four annual, half-rosette species, P. argemone, P. pavonium, P. apulum, and P. hybridum (Kadereit 1986a). Papaver apulum, P. argemone and P. pavonium occur allopatrically from the Adriatic Sea to the Himalayan range. P. hybridum is distributed widely from the Himalayas to Macaronesian Islands. These species are easily distinguished in petal and capsule characters, but are clearly closely related according to molecular analysis. Argemonidium is a sister group to all other Papaver sections, with characteristic indels. Morphological characters also support this distinction, including the presence of an apical plug in the capsules, long internodes above the basal leaf rosette, bristly capsules and polyporate pollen grains. Carolan et al. (2006) supported Kadereit et al. (1997)’s suggestions that Argemonidium and Roemeria are in fact sister taxa.

Taxonomic tree:

Domain:
Kingdom: Plantae
Phylum:
Class: Magnoliopsida
Order:Ranunculales
Family:Papaveraceae
Genus:Papaver
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