coachwhip vs ocotillo

coachwhip

noun
  • Fouquieria splendens (ocotillo). 

  • A long whip used by the driver of a horse-drawn coach. 

  • Masticophis flagellum, a colubrid snake of North America. 

ocotillo

noun
  • Any of various succulent plants, not closely related to the cactus, in genus Fouquieria, especially Fouquieria splendens, living in Central America or the southwest United States. 

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