#salad_green__saladgreen__salad_greens  greens suitable for eating uncooked as in salads
  supertype:  greens__green__leafy_vegetable__leafyvegetable  any of various leafy plants or their leaves and stems eaten as vegetables
  subtype:  lettuce  leaves of any of various plants of Lactuca sativa
     subtype:  butterhead_lettuce  lettuce with relatively soft leaves in a loose head; easily broken or bruised
        subtype:  buttercrunch  lettuce with delicate and relatively crunchy leaves
        subtype:  Bibb_lettuce  lettuce with relatively crisp leaves
        subtype:  Boston_lettuce  lettuce with relatively soft leaves
     subtype:  crisphead_lettuce__crispheadlettuce__iceberg_lettuce__iceberglettuce  lettuce with crisp tightly packed light-green leaves in a firm head
     subtype:  cos__co__cos_lettuce__coslettuce__romaine__romaine_lettuce__romainelettuce  lettuce with long dark-green leaves in a loosely packed elongated head
     subtype:  loose-leaf_lettuce__leaf_lettuce  lettuce with loosely curled leaves that do not form a compact head
  subtype:  celtuce  leaves having celery-like stems eaten raw or cooked
  subtype:  curly_endive__curlyendive  crisp spiky leaves with somewhat bitter taste
     subtype:  radicchio  prized variety of chicory having globose heads of red leaves
  subtype:  chicory_escarole__chicoryescarole__escarole  variety of endive having leaves with irregular frilled edges
     subtype:  Belgian_endive__French_endive__witloof  young broad-leaved endive plant deprived of light to form a narrow whitish head
  subtype:  cress  pungent leaves of any of numerous cruciferous herbs
     subtype:  watercress.cress__watercres  cresses that grow in clear ponds and streams
     subtype:  garden_cress  cress cultivated for salads and garnishes
     subtype:  winter_cress  cress cultivated for winter salads
  subtype:  salad_burnet__saladburnet  leaves sometimes used for salad

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