Similar to oranges, lemons and limes are citrus fruits you can find in the grocery store all year. Lemon and lime trees grow in warmer climates, such as California and Florida, and typical fruits to be about 2 in. in diameter for limes and 2 ½ in. to 3 in. in diameter for lemons.

Lemons are a very versatile fruit. They may be used as seasoning for other foods or used in lemonade and other fruit juices. According to herbs2000.com, eating lemons may ease the acidity in your stomach when eaten regularly.

A clementine is a type of mandarin orange that originated in Spain. These mini-oranges are small, sweet, easy to peel and practically seedless. Clementines are also a fat-free food.

Most people probably would not take the time to classify a fruit as citrus or non-citrus unless they have gastrointestinal problems and should avoid citric acid. Popular citrus fruits include oranges, grapefruit and lemons and are known for being loaded with vitamin-C and detoxifying agents.

Mandarin oranges fall into the citrus fruit category, along with other popular types, such as oranges and grapefruits. Each variety of mandarin offers a slightly different texture, flavor and appearance, reports Purdue University.

Limes provide many health benefits, some well known and others that are not as obvious. Originally grown in India, they are cousin to the lemon and became popular in Europe, moving to the United States as the population grew. They are grown in Florida, California and the Southwest regions of the United States.

If you've ever cut yourself and then accidentally exposed the wound to lemon or lime juice, you know how acidic these fruits are. In fact, of all citrus fruits, lemons and limes have the highest citric acid content -- about 1.4 grams per ounce, or about 8 percent of their dry weight.

Agent Orange is a type of herbicide. It was used throughout Vietnam during the Vietnam War between 1962 and 1971. The herbicide was used to kill vegetation that the enemy forces used for cover. After many military service people returned from war, they began to experience an array of health problems.

According to "Cosmetic Dermatology: Principles and Practice," the acidity in oranges coupled with their high vitamin C content makes them one of nature's perfect cures for acne. The orange peel as well as its juice can be used to treat your acne. According to "Braun-Falco's Dermatology,"

A clementine is often just thought of as a small orange, but they are a fruit like no other. According to the USDA they are a cross between a Chinese mandarin and an orange, and they are packed full of nutritional benefits.

Citrus peels are the skins of fruits such as lemons, oranges, limes or grapefruits. According to Medicinal Herbs & Spices, citrus peels have previously been known for their high levels of vitamin C and its associated health benefits.