ligneous vs timbered

ligneous

adj
  • Of, or resembling wood; woody. 

  • Containing lignin or xylem. 

timbered

adj
  • Wooded; bearing timber; forested. 

  • Made from timber, especially large or coarsely finished timber. 

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