cobra lily vs cuckoopint

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 

cuckoopint

noun
  • The related plant Arum italicum. 

  • The flowering plant Arum maculatum that has arrow-shaped leaves and a cluster of scarlet berries. 

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