Scientific name: citrus limon
The lemon is the fruit of the lemon tree. Lemon trees are thorny and can grow to 10 metres high. Lemons are yellow and very sour because they contain a lot of citric acid. When you make lemonade from lemon juice you need to add a lot of sugar or it will not taste good. You can make marmalade from lemons.
Scientific name: citrus latifolia
Limes are a citrus fruit like oranges and lemons. They are most similar to lemons but are smaller, sourer and greener. Like lemons, limes are not good to eat on their own and are used to flavor drinks and foods. A lot of Asian cooking uses limes as flavoring.