Boldo is an evergreen tree or shrub growing up to six metres in height. It belongs to the monimiaceae family, which are closely related to the laurel family. It is dioecious.
Boldo's light grey-green leathery leaves are elliptical-oval, entire, and have light-coloured tubercles on the surface. They have a characteristic odour and a burning-spicy, slightly bitter taste. The intensely fragrant radial flowers are white or yellowish and arranged in an inflorescence. The oval, aromatic pitted fruits are edible.
Boldo flowers throughout the year.