Tree nuts from the plant classified under the genus Juglans L. spp., commonly known as Walnuts or Walnut Black or Walnut English or Walnut Persian. The part consumed/analysed is not specified. When relevant, information on the part consumed/analysed has to be reported with additional facet descriptors. In case of data collections related to legislations, the default part consumed/analysed is the one defined in the applicable legislation.