Asteraceae

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Asteraceae or Compositae (commonly referred to as the aster, daisy, or sunflower family) is an exceedingly large and widespread family of Flowering plants (Angiospermae). The group has more than 23,000 currently accepted species, spread across 1,620 genera (list) and 12 subfamilies. In terms of numbers of species, Asteraceae is rivaled only by Orchidaceae. (Which of the two families is actually larger is unclear, owing to uncertainty about exactly how many species exist in each family). The main feature of the family is the composite flower type in the form of capitula surrounded by involucral bracts. The name "Asteraceae" comes from Aster, the most prominent genus in the family, that derives from the Greek ἀστήρ meaning star, and is connected with its inflorescence star form. Source
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