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There are about 382,000 accepted species of plants, [15] of which the great majority, some 283,000, produce seeds. [16] The table below shows some species count estimates of different green plant (Viridiplantae) divisions. About 85–90% of all plants are flowering plants.
In many cases, the values given for "Described" species are an estimate only (sometimes a mean of reported figures in the literature) since for many of the larger groups in particular, comprehensive lists of valid species names do not currently exist. For fossil species, exact or even approximate numbers are harder to find; Raup, 1986 [15 ...
Plants of the World: An Illustrated Encyclopedia of Vascular Plants. Chicago, Illinois: Kew Publishing and The University of Chicago Press. pp. 18– 637. ISBN 978-0-226-52292-0. Coombes, Allen (2012). The A to Z of Plant Names: A Quick Reference Guide to 4000 Garden Plants. Portland, Oregon: Timber Press. ISBN 978-1-60469-196-2.
[2] [3] Likewise, plants which shared common medicinal properties, such as the many species of Euphorbia, were united into a single genus, while plants of diverse uses, such as the grasses, were split into many genera. [2] Where there were many classical names for groups of plants, such as in Apiaceae / Umbelliferae or Brassicaceae / Cruciferae ...
More than 99 percent of all species, amounting to over five billion species, [7] that ever lived on Earth are estimated to be extinct. [8] [9] Estimates on the number of Earth's current species range from 10 million to 14 million, [10] of which about 1.2 million have been documented and over 86 percent have not yet been described. [11]
In his introduction, Linnaeus estimated that there were fewer than 10,000 plant species in existence; [12] there are now thought to be around 400,000 species of flowering plants alone. [13] The species were arranged in around a thousand genera, which were grouped into 24 classes, according to Linnaeus' sexual system of classification. [14]
The list currently includes 1352 species. Conservation status [8] Least-concern species: ... Caribbean copper plant Euphorbiaceae (spurge family) Euphorbia ingens:
The number of species of flowering plants is estimated to be in the range of 250,000 to 400,000. [26] [27] [28] This compares to around 12,000 species of moss [29] and 11,000 species of pteridophytes. [30] The APG system seeks to determine the number of families, mostly by molecular phylogenetics. In the 2009 APG III there were 415 families. [31]