A plant, a species of the genus Citrus (Citrus) of the subtribe Citrus (Citrinae) of the family Rutaceae.
The fruit (hesperidium) of this plant is also called lemon.
Lemon is a small evergreen fruit tree up to 5–8 m high with a spreading or pyramidal crown. Trees aged 45 years are found.
The homeland of lemon is India, China and the tropical Pacific islands. It is widely cultivated in many countries with a subtropical climate.
