{"schemaVersion":"1.0","id":"what-london-plants","dataset":"tree-species","title":"What London plants","description":"Cherry, maple, lime, oak — in that order.","methodology":"The twenty commonest species among London's 1.14 million public realm trees, using the GLA's tidied common name. Counts every record in the file rather than a sample.","category":"environment","categoryLabel":"Environment","cadence":"annual","placeholder":false,"landingPage":"https://londongraph.com/g/what-london-plants","markdown":"https://londongraph.com/g/what-london-plants/index.html.md","source":{"name":"London Datastore","url":"https://data.london.gov.uk/dataset/local-authority-maintained-trees/","licence":"Open Government Licence v3.0","licenceUrl":"https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/"},"updatedAt":"2026-07-31T23:24:32.892Z","release":{"label":null,"publishedAt":null,"resourceUrl":null,"methodologyUrl":null,"sha256":null},"observations":[{"series":"","buckets":["Cherry","Maple","Lime","Oak","Plane","Ash","Birch","Sycamore","Hawthorn","Other","Hornbeam","Apple","Whitebeam","Horse Chestnut","Pear","Poplar","Cypress","Rowan","Willow","Holly"],"values":[153821,102779,94673,81471,76781,62083,59353,50705,40211,36970,33854,31881,31636,26305,25632,21106,19477,16526,14960,14846],"unit":"trees","metadata":[{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{},{}]}],"areaStatistics":null,"visualizations":[{"id":"species","label":"Most recorded species","description":"Rank the twenty commonest named public-realm tree records.","url":"https://londongraph.com/g/what-london-plants","renderer":"primary","default":true,"timeControl":"inherit","datasets":[],"transform":null,"controls":null,"metrics":[],"caveat":null},{"id":"treemap","label":"Species treemap","description":"Use area to compare the contribution of the commonest recorded species.","url":"https://londongraph.com/g/what-london-plants?view=treemap","renderer":"treemap","default":false,"timeControl":"inherit","datasets":[],"transform":null,"controls":null,"metrics":[],"caveat":null},{"id":"borough-matrix","label":"Borough × species","description":"Compare the thirty most recorded species across borough inventories.","url":"https://londongraph.com/g/what-london-plants?view=borough-matrix","renderer":"matrix","default":false,"timeControl":"inherit","datasets":["tree-borough-species"],"transform":null,"controls":null,"metrics":[],"caveat":null},{"id":"diversity","label":"Recorded diversity","description":"Compare borough effective-species diversity with exact named-record denominators.","url":"https://londongraph.com/g/what-london-plants?view=diversity","renderer":"distribution","default":false,"timeControl":"inherit","datasets":["tree-diversity-by-borough"],"transform":null,"controls":null,"metrics":[],"caveat":null}],"availability":"observations","note":"The release is complete for the measures represented on the graph page."}