Conifer vs Poplar

Conifer

name
  • An unincorporated community in Jefferson County, Pennsylvania, United States. 

  • An unincorporated community in Jefferson County, Colorado, United States. 

  • A surname. 

Poplar

name
  • An unincorporated community in Mitchell County, North Carolina, United States. 

  • A village in Douglas County, Wisconsin, United States. 

  • An unincorporated community in Cass County, Minnesota, United States. 

  • A city in Roosevelt County, Montana, United States. 

  • An unincorporated community in Audubon County, Iowa, United States. 

  • A surname. 

  • A suburban area in East London, Greater London, England (OS grid ref TQ3780). 

  • An unincorporated community in Caroline County, Virginia, United States. 

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