The lemon (Citrus x limon) is a small evergreen tree in the flowering plant family Rutaceae. It is native to Asia, primarily Northeast India (Assam), Northern Myanmar, and China.

The tree’s ellipsoidal yellow fruit is used for culinary and non-culinary purposes worldwide, primarily for its juice, which has both culinary and cleaning uses. The pulp and rind are also used in cooking and baking.

The juice from a lemon contains about 5-6% citric acid, which gives it that sour taste. This distinctive taste makes lemons a wonderful key ingredient in drinks and food such as lemonade and lemon meringue pie.

Source: Wikipedia
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