The lemon, Citrus limon (L.) Osbeck, is a species of small evergreen tree in the flowering plant family Rutaceae, native to Asia. The tree's ellipsoidal yellow fruit is used for culinary and non-culinary . Lemon juice, rind, and zest are used in a wide variety of foods and drinks. Lemon juice is used to make lemonade, soft drinks, History · Varieties · Culinary uses · Other uses. Nutrition information for lemons and tips on how to select, store and prepare them. Fruit & Vegetable How-To Video Center: Storage, Selection, Preparation. Calamondin is a fruit produced from a cross between a sour Mandarin and the One of the most familiar citrus fruits of all is the lemon. Lemons.