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An acorn and a Valley Oak, California.
Kermes oak, Quercus coccifera, with acorns and leaves. This is the only oak species that grows as a bush
Acorns are the characteristic fruit of the holm oak, an emblematic tree of the Iberian Peninsula. These fruits play a crucial role in the diet of Iberian pigs, especially during the montanera, when they feed almost exclusively on them to develop the unique flavour of Iberian acorn-fed ham. Acorns ripen and fall from the tree in autumn, also being a food resource for other animals such as squirrels. In addition, acorns have been used by humans in food and in the production of flour and oils, standing out for their high nutritional value.
Small Acorns of Holm Oak (Quercus Ilex)
Portugal, Alentejo region. Recently harvested cork oak bark drying in the sunshine. under a cork Oak tree. (unprocessed cork) Natural, sustainable resource.
Natural Reserve Los Alcornocales in south of Spain
Horizontal closeup photo of a group of three ripe brown acorns hanging by the stem on an Oak tree with green leaves in late Summer. New England high country NSW.
Quercus ilex subs ballota still immature green acorns with green oak leaves with bluish tones on defocused green background flash lighting
Oaks in the country of Navahermosa. Toledo.
Oak tree acorn in Termessos National Park
Holm oak branch with evergreen leaves and fruit in the form of a dark acorn
Tiny acorns growing on an oak tree in a forest.
macro view of the acorns and the leaves of an evergreen oak (quercus ilex) illuminated by the sunlight.
Cork Oak (Quercus suber) tree. Luogosanto. Province of Sassari. Sardinia. Italy.
Ground of dehesa full of fallen acorns from  holm oak trees at sunset, Extremadura, Spain
Summer in the Johnsondale, California
Oak tree branches and acorn nuts on a blue sky background as beautiful autumn season background, California
Cork after being stripped from trees is waiting for processing in the  historic mountain town of Monchique Portugal, Faro district, Portugal
Close-up of a cork oak acorn with a few leaves on the tree
Giant holly oak in mediterranean mountains, Barcelona province.
Tree with a blue sky
Landscape with cork tree in a meadow with wildflowers,Alentejo,Portugal.
An engaging view of Iberian pigs being fed acorns at a farm in Sierra de Aracena. The pigs roam freely among oak trees, enjoying their natural diet. Sierra de Aracena, Spain.
A tiny acorn growing on an oak tree in a forest.
A lone acorn in a Spanish garden
Bark of cork oak (Quercus suber) tree. Luogosanto. Province of Sassari. Sardinia. Italy.
The acorn or oaknut on a branch of oak tree with green leaves. The acorn is the nut of the oaks and their close relatives genera Quercus and Lithocarpus
Single tree on a rock hill
Acorn on a leaf
Holm oaks in the countryside on a sunny winter day. Landscape in Campo Charro, Salamanca
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