aster vs daisy

aster

noun
  • Any of several plants of the genus Aster; one of its flowers. 

  • A star-shaped structure formed during the mitosis of a cell. 

daisy

noun
  • Many other flowering plants of various species, mostly among the asterids. 

  • A boot or other footwear. 

  • A wild flowering plant Bellis perennis of the Asteraceae family, with a yellow head and white petals 

How often have the words aster and daisy occurred in a corpus of books? (source: Google Ngram Viewer )