The acorn (fromthe arabic word árabe ballūta, oak), is a characteristic nut of the Quercus species (fam.Fagaceae).
There are many species of trees that produce acorns, the favourite nuts of squirrels and … pigs.
The oak trees of the Iberica Peninsular can be divided into 2 subspecies: (Quercus ilex subsp. ilex) and (Quercus ilexsubsp. ballota), which have slight morphological and physiological differences, which result in different nuts, the first being more elongated and bitter, the second rounder and sweeter.