The juice from one medium lemon is equivalent to 2 to 3 tablespoons of lemon juice. In some recipes, lime juice, vinegar or white wine can be substituted for lemon juice.
The lemon is known scientifically as Citrus limon or Citrus limonum. Lemons grow on bushes or small trees in cool, consistent climates, such as those found in certain regions of Italy and California. In orchards, a single lemon tree yields approximately 1,500 lemons per year. Lemon juice is popular in desserts, as a condiment for various meats and in beverages. Other components of lemons are used in cleaners and medicines.