legislative branch vs legislature

legislative branch

noun
  • The branch of government which is concerned with the making of laws 

legislature

noun
  • A governmental body with the power to make, amend and repeal laws. 

  • The legislative assembly of a province or territory, as opposed to the federal parliament. 

  • A legislative building. 

How often have the words legislative branch and legislature occurred in a corpus of books? (source: Google Ngram Viewer )