Leaves from the plant classified under the species Lactuca sativa L. var. capitata L. Butterhead group, commonly known as Head lettuces or Cabbage lettuces or Lettuce red. 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.