daisy vs sunflower

daisy

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

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

  • A boot or other footwear. 

sunflower

noun
  • A bright yellow, like that of the flower petals. 

  • Any flat, radially symmetric organic compound such as coronene 

  • Any plant of the genus Helianthus, so called probably from the form and color of its floral head, having the form of a large disk surrounded by yellow ray flowers. 

  • The commonly cultivated species, Helianthus annuus, a native of America. 

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