holm oak vs live oak

holm oak

noun
  • An evergreen tree, Quercus ilex, native to the Mediterranean region. 

live oak

noun
  • Any of several other species of oak with evergreen, usually holly-like, leaves. 

  • An evergreen species of oak characteristic of the US South, southern live oak (Quercus virginiana). 

How often have the words holm oak and live oak occurred in a corpus of books? (source: Google Ngram Viewer )