# What London plants

> Cherry, maple, lime, oak — in that order.

- Category: Environment
- Cadence: annual
- Status: Published on a annual cadence.
- Dataset key: `tree-species`
- Source: [London Datastore](https://data.london.gov.uk/dataset/local-authority-maintained-trees/)
- Licence: Open Government Licence v3.0 — [terms](https://www.nationalarchives.gov.uk/doc/open-government-licence/version/3/)
- Canonical page: [https://londongraph.com/g/what-london-plants](https://londongraph.com/g/what-london-plants)
- Machine-readable record: [https://londongraph.com/data/what-london-plants](https://londongraph.com/data/what-london-plants)

## 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.

## Visualisations

- [Most recorded species](https://londongraph.com/g/what-london-plants): Rank the twenty commonest named public-realm tree records.
- [Species treemap](https://londongraph.com/g/what-london-plants?view=treemap): Use area to compare the contribution of the commonest recorded species.
- [Borough × species](https://londongraph.com/g/what-london-plants?view=borough-matrix): Compare the thirty most recorded species across borough inventories.
- [Recorded diversity](https://londongraph.com/g/what-london-plants?view=diversity): Compare borough effective-species diversity with exact named-record denominators.

## Citation guidance

Attribute the original publisher named above and identify LondonGraph as the visualisation and methodology layer. Do not describe live values as a historical census, and do not present placeholder values as observations.