"denotation"=>"natural_monument","genus"=>"Platanus","leaf_cycle"=>"deciduous","leaf_type"=>"broadleaved","ref:lwdtrees"=>"1801:80","source:date"=>"2015-08-26","species"=>"Platanus orientalis","start_date"=>"1900"
"genus"=>"Acer","leaf_cycle"=>"deciduous","leaf_type"=>"broadleaved","ref:lwdtrees"=>"346:150","source:date"=>"2015-08-26","species"=>"Acer pseudoplatanus","start_date"=>"1949"
"denotation"=>"natural_monument","genus"=>"Tilia","leaf_cycle"=>"deciduous","leaf_type"=>"broadleaved","ref:lwdtrees"=>"1168:570","source:date"=>"2015-08-26","species"=>"Tilia x europaea","start_date"=>"1914"