cobra lily vs monarch

cobra lily

noun
  • The plant Chasmanthe aethiopica. 

  • Any plant in the genus Arisaema spread in eastern Asia, eastern Africa and eastern North America 

  • A carnivorous plant native to northern California and southern Oregon, Darlingtonia californica 

monarch

noun
  • Any bird of the family Monarchidae. 

  • The ruler of an absolute monarchy or the head of state of a constitutional monarchy. 

  • The monarch butterfly, Danaus plexippus, and others of genus Danaus, found primarily in North America, so called because of the designs on its wings. 

  • A stag which has sixteen or more points or tines on its antlers. 

  • The chief or best thing of its kind. 

  • A police officer. 

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