Citron is a large, yellow citrus fruit that resembles a lemon but is much bigger and has a thick, bumpy rind. It is primarily grown in tropical and subtropical regions, particularly in India, China, and the Mediterranean. The fruit is known for its strong fragrance and is often used in religious ceremonies and traditional medicine. The pulp of the citron is not typically consumed due to its bitterness, but the zest and peel are valued for their aromatic properties. Citron is also used to make candied fruit and is an essential ingredient in some Jewish holiday traditions, particularly during Sukkot.