"species"=>"populus canadensis","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"canadese populier","start_date"=>"1930","circumference"=>"3,3","ref:boomnummer"=>"03.55.409.0020"
"species"=>"metasequoia glyptostroboides","leaf_type"=>"needleleaved","protected"=>"yes","species:nl"=>"chinese moerascipres","start_date"=>"1930","circumference"=>"3,77","ref:boomnummer"=>"03.55.340.0526"
"species"=>"fagus sylvatica 'atropurpurea'","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"bruine beuk","start_date"=>"1920","circumference"=>"3,83","ref:boomnummer"=>"03.55.340.0523"
"species"=>"gleditsia triacanthos","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"valse christusdoorn","start_date"=>"1940","circumference"=>"2,51","ref:boomnummer"=>"03.50.450.1390"
"species"=>"fagus sylvatica 'atropurpurea'","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"bruine beuk","start_date"=>"1930","circumference"=>"2,51","ref:boomnummer"=>"03.50.090.2815"
"species"=>"quercus robur","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"inlandse eik","start_date"=>"1930","circumference"=>"3,3","ref:boomnummer"=>"03.55.340.0548"
"species"=>"quercus robur","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"inlandse eik","start_date"=>"1930","circumference"=>"3,3","ref:boomnummer"=>"03.55.340.0547"
"species"=>"platanus hispanica","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"plataan","start_date"=>"1930","circumference"=>"4,14","ref:boomnummer"=>"03.50.450.1465"
"species"=>"fagus sylvatica 'atropurpurea'","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"bruine beuk","start_date"=>"1930","circumference"=>"2,83","ref:boomnummer"=>"03.50.090.2898"
"species"=>"fagus sylvatica 'atropurpurea'","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"bruine beuk","start_date"=>"1930","circumference"=>"2,51","ref:boomnummer"=>"03.50.090.2897"
"species"=>"fagus sylvatica 'atropurpurea'","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"bruine beuk","start_date"=>"1930","circumference"=>"2,83","ref:boomnummer"=>"03.50.090.2896"
"species"=>"fagus sylvatica 'atropurpurea'","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"bruine beuk","start_date"=>"1930","circumference"=>"2,2","ref:boomnummer"=>"03.50.090.2895"
"species"=>"fagus sylvatica 'atropurpurea'","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"bruine beuk","start_date"=>"1930","circumference"=>"1,88","ref:boomnummer"=>"03.50.090.2809"
"species"=>"quercus robur","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"inlandse eik","start_date"=>"1930","circumference"=>"2,83","ref:boomnummer"=>"03.50.290.0520"
"species"=>"fagus sylvatica 'atropurpurea'","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"bruine beuk","start_date"=>"1930","circumference"=>"2,51","ref:boomnummer"=>"03.50.090.2808"
"species"=>"fagus sylvatica 'atropurpurea'","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"bruine beuk","start_date"=>"1930","circumference"=>"2,51","ref:boomnummer"=>"03.50.090.2894"
"species"=>"fagus sylvatica 'atropurpurea'","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"bruine beuk","start_date"=>"1930","circumference"=>"2,83","ref:boomnummer"=>"03.50.090.2807"
"species"=>"fagus sylvatica 'atropurpurea'","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"bruine beuk","start_date"=>"1930","circumference"=>"2,51","ref:boomnummer"=>"03.50.090.2844"
"species"=>"fagus sylvatica 'atropurpurea'","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"bruine beuk","start_date"=>"1930","circumference"=>"2,51","ref:boomnummer"=>"03.50.090.2843"
"species"=>"quercus robur","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"inlandse eik","start_date"=>"1930","circumference"=>"2,2","ref:boomnummer"=>"03.50.090.2881"
"species"=>"quercus robur","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"inlandse eik","start_date"=>"1930","circumference"=>"3,14","ref:boomnummer"=>"03.55.340.0527"
"species"=>"fagus sylvatica 'atropurpurea'","leaf_type"=>"broadleaved","protected"=>"yes","species:nl"=>"bruine beuk","start_date"=>"1950","circumference"=>"2,51","ref:boomnummer"=>"03.50.090.2842"