gunpowder tea vs manuka

gunpowder tea

noun
  • A form of Chinese green tea in which each leaf has been rolled into a small round pellet. 

manuka

noun
  • The wood of this plant. 

  • Leptospermum scoparium, a shrub or small tree native to New Zealand and southeast Australia. 

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