Key Lime is known C. aurantifolia is a perennial evergreen tree that can grow to a height of 3–5 m [Figure 1]. Stem: irregularly slender branched and possesses short and stiff sharp spines or thorns 1 cm or less. Leaves: alternate, elliptical to oval, 4.5–6.5 cm long, and 2.5–4.5 cm wide with small rounded teeth around the edge.
 
Limes are high in vitamin C, antioxidants, and other nutrients. They may help boost immunity, reduce the chance of heart disease, prevent kidney stones, aid iron absorption, and promote healthy skin. 
Limes are sour, round, and bright green citrus fruits.
In the United States, Persian limes are the most commonly available type.
 
This article provides an overview of the nutritional benefits of limes, as well as their uses and potential side effects.