bugloss vs marigold

bugloss

noun
  • Any of several plants in the borage family, Boraginaceae. 

marigold

noun
  • Any of the New World plants, of the genus Tagetes, with orange, yellow or reddish flowers. 

  • Any of the Old World plants, of the genus Calendula, with orange, yellow or reddish flowers. 

adj
  • Having the color of marigolds, a bright yellowish-orange hue. 

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