flowering tea vs gunpowder tea

flowering tea

noun
  • A type of tea originating in China consisting of a bundle of dried tea leaves wrapped around one or more dried flowers. 

gunpowder tea

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

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