spiceberry vs white alder

spiceberry

noun
  • Its fruit, a glossy, bright red drupe. 

  • A compact flowering plant, Ardisia crenata, native to East Asia. 

white alder

noun
  • American winterberry (Ilex verticillata). 

  • Grey alder (Alnus incana) 

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