Pecan is the common name of this large deciduous tree, capable of exceeding 50 meters tall, fairly common in North America. Specifically it is native to southern US area and northern Mexico. This vast territory, along with Florida, was explored by the Spanish during the first half of the sixteenth century in different expeditions led by Hernando de Soto and Cabeza de Vaca. Both explorers account for a fruit consumed by the natives, who they tried themselves and helped them survive in the toughest moments of their trip. For its resemblance to what they knew in Europe they called respectively the fruit ‘nut’ and the tree ‘walnut’. So, we can say that there was a nut in pre-Columbian America, only that it was another type. Hence the name of pecan. For its size these trees become effective support for biodiversity, harboring other organisms such as plants, birds or bats. A garden inside the garden.