Oak Tree Pictures
Welcome to our oak tree pictures category. On this tree photos page you will find lots of nice pictures of oak trees, different types of Oak Trees and below facts about oak trees.
You will also find a lot of wonderful information on oak trees, including information about the oak tree species, planting information, and much more.
This is valuable and useful information that can help you to learn more about the oak tree.
Oak Tree Images
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Enjoy these pictures of oak trees .
More tree picture categories are on the left arranged in alphabetical order and each tree category contains many beautiful pictures of that different tree type. Each tree photo can be clicked to bring you to a larger image of that tree.
Oak Tree Pictures
Oak Tree Pictures: More Images of Oaks
Oak Trees, Facts on Oak Tree Types and Oak Tree Species
Oak Tree Scientific Name: Quercus
- Bur Oak Tree
- Black Oak Tree
- Bluff Oak Tree
- California Oak Tree
- Chestnut Oak Tree
- Cork Oak Tree, evergreen oak tree harvested for its cork bark
- Eastern White Oak Tree
- English Oak Tree
- Florida Oak Tree
- Live Oak Tree
- Northern Red Oak Tree
- Nutall Oak Tree
- Overcup Oak Tree
- Pin Oak Tree
- Post Oak Tree
- Red Oak Tree
- Sawtooth Oak
- Scarlet Oak Tre
- Shumard Oak Tree
- Southern Red Oak
- Swamp Chestnut Oak Tree
- Texas Oak Tree
- White Oak Tree
Oak Tree Trivia
Oak Trees are most commonly struck by lightning!
The creation of a thousand forests is in one acorn. ~ Ralph Waldo Emerson
Oak Tree Facts
Here is some detailed information on oak trees.
An oak is a tree or shrub in the genus Quercus, of which about 600 species exist on earth. "Oak" may also appear in the names of species in related genera, notably Lithocarpus. The genus is native to the northern hemisphere, and includes deciduous and evergreen species extending from cold latitudes to tropical Asia and the Americas.
Oaks have spirally arranged leaves, with a lobed margin in many species; some have serrated leaves or entire leaves with a smooth margin. The flowers are catkins, produced in spring. The fruit is a nut called an acorn, borne in a cup-like structure known as a cupule; each acorn contains one seed (rarely two or three) and takes 6 to 18 months to mature, depending on species. The live oaks are distinguished for being evergreen, but are not actually a distinct group and instead are dispersed across the genus.
Oak wood has a density of about 0.75 g/cm cubed, great strength and hardness, and is very resistant to insect and fungal attack because of its high tannin content. It also has very attractive grain markings, particularly when quartersawn. Wide, quarter-sawn boards of oak have been prized since the Middle Ages for use in interior paneling of prestigious buildings such as the debating chamber of the House of Commons in London, England, and in the construction of fine furniture. Oak wood, from Quercus robur and Quercus petraea, was used in Europe for the construction of ships, especially naval men of war, until the 19th century, and was the principal timber used in the construction of European timber-framed buildings.
Today oak wood is still commonly used for furniture making and flooring, timber frame buildings, and for veneer production. Barrels in which red wines, sherry, brandy and spirits such as Scotch whisky and Bourbon whiskey are aged are made from European and American oak. The use of oak in wine can add many different dimensions to wine based on the type and style of the oak. Oak barrels, which may be charred before use, contribute to the colour, taste, and aroma of the contents, imparting a desirable oaky vanillin flavour to these drinks. The great dilemma for wine producers is to choose between French and American oakwoods. French oaks (Quercus robur, Q. petraea) give the wine greater refinement and are chosen for best wines since they increase the price compared to those aged in American oak wood. American oak contributes greater texture and resistance to ageing, but produces more violent wine bouquets. Oak wood chips are used for smoking fish, meat, cheeses and other foods.
The leaves and acorns of the oak tree are poisonous to cattle, horses, sheep, and goats in large amounts due to the toxin tannic acid, and cause kidney damage and gastroenteritis. Additionally, once livestock have a taste for the leaves and acorns, they may seek them out. Symptoms of poisoning include lack of appetite, depression, constipation, diarrhea (which may contain blood), blood in urine, and colic.
The oak is a common symbol of strength and endurance and has been chosen as the national tree of many countries. Already an ancient Germanic symbol (in the form of the Donar Oak, for instance), certainly since the early nineteenth century, it stands for the nation of Germany. In 2004 the Arbor Day Foundation, held a vote for the official National Tree of the United States of America. In November 2004, Congress passed legislation designating the oak as America's National Tree.
Oak Tree References
Additonal Oak tree photos, images, pics and facts on different types of oak trees can be found at the Oak Tree Pictures category page at Tree-Pictures.com
More pictures, and photos of oak trees can be viewed at Oak Tree Pics
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