coffee berry vs mopane

coffee berry

noun
  • The red fruit of the coffee tree, which contains the bean. 

mopane

noun
  • A tree, Colophospermum mopane, native to southern Africa. 

  • The mopane worm or mopane moth Gonimbrasia belina 

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