The nine-pounder lemon (Citrus limon cv. Nine Pounder) belongs to Rutaceae (the Citrus family). It is a small evergreen tree that is discovered in 1977 by the Florida Citrus Arboretum. The fruits are roundish, with thick rind and seeds. Their main use is ornamental, due to their large size, but they are nonetheless juicy enough to be used for cooking. Despite its huge fruit, the tree is not particularly large. The lemons can weigh up to 9 pounds (about 4 kg).