Which tree’s berries are used to flavor gin and can be used in cookery?

The juniper. This evergreen tree is small and resembles a gorse bush with its spiky needles and fragrant grey bark. Juniper wood is used for small decorative carving and inlay, but it is the berries which make it useful. These are distilled into oil of juniper, which is then used in perfumery and exotic cookery. Another of its uses was in medicine, but nowadays its main function is to flavor gin.