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This is a list of the oldest-known trees, as reported in reliable sources. Definitions of what constitutes an individual tree vary. Definitions of what constitutes an individual tree vary. In addition, tree ages are derived from a variety of sources, including documented "tree-ring" ( dendrochronological ) count core samples, and from estimates.
Quercus alba, the white oak, is one of the preeminent hardwoods of eastern and central North America. It is a long-lived oak, native to eastern and central North America and found from Minnesota, Ontario, Quebec, and southern Maine south as far as northern Florida and eastern Texas. [3] Specimens have been documented to be over 450 years old. [4]
The Bland Oak in Sydney, Australia, is one of the oldest trees in the city and the largest oak tree in the country, planted in the 1840s by inventor and politician William Bland. The Airlie Oak in Wilmington, NC dates to about 1545. It is the largest Live Oak in North Carolina, with a circumference of over 6.4 m (21 ft).
Live oak was widely used in early American butt shipbuilding.Because of the trees' short height and low-hanging branches, lumber from live oaks was used in curved parts of the frame, such as knee braces (single-piece, L-shaped braces that spring inward from the side and support the deck), in which the grain runs perpendicular to structural stress, making for exceptional strength.
Angel Oak is an exceptionally large Southern live oak (Quercus virginiana) located in Angel Oak Park on Johns Island near Charleston, South Carolina. The tree is estimated to be 400–500 years old. [1] It stands 66.5 ft (20 m) tall, measures 28 ft (8.5 m) in circumference, and produces shade that covers 17,200 square feet (1600 m 2).
Quercus macrocarpa, the bur oak or burr oak, is a species of oak tree native to eastern North America. It is in the white oak section, Quercus sect. Quercus , and is also called mossycup oak , mossycup white oak , blue oak , or scrub oak .
Quercus rubra, the northern red oak, is an oak tree in the red oak group (Quercus section Lobatae). It is a native of North America, in the eastern and central United States and southeast and south-central Canada. It has been introduced to small areas in Western Europe, where it can frequently be seen cultivated in gardens and parks.
Quercus douglasii, known as blue oak, is a species of oak endemic to California, common in the Coast Ranges and the foothills of the Sierra Nevada. [4] It is California's most drought-tolerant deciduous oak, [5] and is a dominant species in the blue oak woodland ecosystem. It is occasionally known as mountain oak and iron oak. [6] [7]