Invasive species in the UK

Japanese knotweed and other invasive species records, at the resolution the records allow. Figures come from NBN Atlas, GB Non-Native Species Secretariat, and every area on this layer states its source and retrieval date.

What this layer shows

Japanese knotweed and other invasive species records, at the resolution the records allow.

The scale runs from No records to Dense records. Areas with no published reading stay neutral and are labelled unknown.

Sources and confidence

Built from NBN Atlas, GB Non-Native Species Secretariat. Each value records its source, the date it was retrieved and whether it is a verified reading, a derived statistic or a model output, following Property Data Trust Framework conventions.

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