American pokeweed vs woolly nightshade

American pokeweed

noun
  • Phytolacca americana, pokeweed. 

woolly nightshade

noun
  • Solanum mauritianum, a pest plant native to South America. 

  • Solanum villosum, a plant native to the Mediterranean. 

How often have the words American pokeweed and woolly nightshade occurred in a corpus of books? (source: Google Ngram Viewer )