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In page Asteraceae:

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The family includes over 32,000 currently accepted species, in over 1,900 genera (list) in 13 subfamilies.[6] The number of species in the family Asteraceae is rivaled only by Orchidaceae.[5][7] Which is the larger family is unclear, because of the uncertainty about how many extant species each family includes.[citation needed] The four subfamilies Asteroideae, Cichorioideae, Carduoideae and Mutisioideae contain 99% of the species diversity of the whole family (approximately 70%, 14%, 11% and 3% respectively).[citation needed]