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The leaf is usually the primary site of photosynthesis in plants.

Plants are the eukaryotes that form the kingdom Plantae; they are predominantly photosynthetic. This means that they obtain their energy from sunlight, using chloroplasts derived from endosymbiosis with cyanobacteria to produce sugars from carbon dioxide and water, using the green pigment chlorophyll. Exceptions are parasitic plants that have lost the genes for chlorophyll and photosynthesis, and obtain their energy from other plants or fungi.

There are about 380,000 known species of plants, of which the majority, some 260,000, produce seeds. They range in size from single cells to the tallest trees. Green plants provide a substantial proportion of the world's molecular oxygen; the sugars they create supply the energy for most of Earth's ecosystems and other organisms, including animals, either consume plants directly or rely on organisms which do so. (Full article...)

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Opium poppy
Opium poppy
Opium poppy, Papaver somniferum, is the species of plant from which opium and poppy seeds are extracted. Opium is the source of many opiates, including morphine, thebaine, codeine, papaverine, and noscapine. The Latin botanical name means, loosely, the "sleep-bringing poppy", referring to the sedative properties of some of these opiates.

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  1. Describe all families, genera and species of the kingdom Plantae.
  2. For species, describe botanical properties, distribution, multiplication, usage (medicine, food, etc.), botanical history, cultivation information.
  3. Develop and implement a robust method of naming plant article for the ease of navigation and searching for Wikipedia users.
  4. Maintain Category:Plants and its subcategories.

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