The table below shows some species count estimates of different green plant (Viridiplantae) divisions. It suggests there are about 300,000 species of living Viridiplantae, of which 85-90% are flowering plants. (Note: as these are from different sources and different dates, they are not necessarily comparable, and like all species counts, are subject to a degree of uncertainty in some cases.)
|Informal group||Division name||Common name||No. of living species||Approximate No. in informal group|
|Green algae||Chlorophyta||green algae (chlorophytes)||3,800 – 4,300||8,500
(6,600 - 10,300)
|Charophyta||green algae (e.g. desmids & stoneworts)||2,800; 4,000-6,000|
(18,100 - 20,200)
|Pteridophyta||ferns, whisk ferns & horsetails||11,000|
The naming of plants is governed by the International Code of Botanical Nomenclature and International Code of Nomenclature for Cultivated Plants (see cultivated plant taxonomy).
Read more about this topic: Plant
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