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How many plant species did the first edition of Species Plantarum describe?

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In the first edition of Species Plantarum, published in 1753, the Swedish botanist Carolus Linnaeus described approximately 6,000 plant species.1

This landmark two-volume work was significant for establishing a precise, workable binomial nomenclature system, which serves as the foundation for modern plant taxonomy. By assigning each plant a genus and species name, Linnaeus replaced the cumbersome polynomial descriptions that were previously in use.1