noonflower vs sour fig

noonflower

noun
  • Flowers of the family Aizoaceae, especially those of the genus Carpobrotus. 

  • Flowers of the genus Bauhinia. 

  • Tragopogon, a type of aster that closes at midday. 

sour fig

noun
  • Carpobrotus edulis, a creeping plant of South Africa with edible fruit. 

How often have the words noonflower and sour fig occurred in a corpus of books? (source: Google Ngram Viewer )