Lettuce (or garden salad) - nameplants of the family Asteraceae (or Compositae) . His birthplace is unknown lettuce, and its origin is from wild lettuce salad, occurring in Europe, Africa, Asia, Central and North America . Lettuce is widely used in cooking . Most often it is used in food in its raw form, adding vegetable salads, sauces, soups,snacks, dishes of vegetables, meat, poultry or fish . salad is often used to decorate the table. Also sometimes salad stewed or fried, but you must keep in mind that during the heat treatment lost a significant portion of vitamins and hence its useful properties . leaf and iceberg lettuce grown in the open field and greenhouse as seals andindependent culture .