syringa vs white cedar

syringa

noun
  • Any of several flowering plants, of the genus Syringa, such as the lilacs. 

  • Hence any of several flowering plants of the genus Philadelphus, such as now in the Western United States Philadelphus lewisii. 

white cedar

noun
  • An evergreen coniferous tree of the family Cupressaceae, native to the northeastern US and southeastern Canada, Thuja occidentalis. 

  • The Atlantic white cypress, Chamaecyparis thyoides. 

  • The Mexican white cedar, Cupressus lusitanica 

  • The chinaberry, Melia azedarach. 

  • Tabebuia heterophylla, of the Caribbean and South America. 

How often have the words syringa and white cedar occurred in a corpus of books? (source: Google Ngram Viewer )