The term oak is used to refer to a set of tree species, which belong to the Quercus genus, these are autochthonous to the northern region with respect to the equator, those belonging to the Fagacea genus and to the Nathofagus family autochthonous South America, they are also considered as oaks, some of the best known oak species are Quercus Faginea, Quercus Petraea and Quercus Robur, the latter is commonly known as common oak, and is characterized by being a tree that can exceed the 30 meters high.
The best known within the oak species is Quercus Robur (common oak), which is native to the European continent, it is known by different names depending on the region where it is located, since for example in the community of Galicia and in some regions of Portugal it is known as Carballo, while in Cantabria it is called Cajiga. The common oak of regions where moisture is abundant, its growth is slow compared to other trees, the wood it produces is very strong and resistant so it is widely used in areas such as carpentry. The main features that characterize it are its wide trunk, it usually grows upright and straight, the branches have a good thickness and its leaves are large.
It has both male and female flowering, both with well-defined characteristics, the male ones always usually appear in conjunction with several flowers forming clusters and have a yellowish color, on the other hand the female ones are grouped by 2 or 3 subject to a peduncle that appears in the leaves that are higher. The fruit that the oak produces is known as acorn, which inside contains an edible seed, in the case of Quercus Robur its taste is a bit bitter, while there are other species where the fruit has a slightly sweeter taste being these the source of Lima of great variety of speciesLike squirrels and mice, acorns were once an important food for primitive humans who were engaged in gathering and cultivation.
