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The flowering plants (angiosperms), also known as Angiospermae[4][5] or Magnoliophyta,[6] are the most diverse group of land plants, with 416 families, approx. 13,164 known genera and a total of c. 295,383 known species.[7] Like gymnosperms, angiosperms are seed-producing plants; they are distinguished from gymnosperms by characteristics including flowers, endosperm within the seeds, and the production of fruits that contain the seeds. Etymologically, angiosperm means a plant that produces seeds within an enclosure, in other words, a fruiting plant. The term "angiosperm" comes from the Greek composite word (angeion, "case" or "casing", and sperma, "seed") meaning "enclosed seeds", after the enclosed condition of the seeds.

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