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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.
The avenue of live oaks at Oak Alley Plantation in Vacherie, Louisiana, planted in the early 18th century. Live oak wood is hard, heavy, and difficult to work with, but very strong. In the days of wooden ships, live oaks were the preferred source of the framework timbers of the ship, using the natural trunk and branch angles for their strength.
Quercus agrifolia, the California live oak, [3] or coast live oak, is an evergreen [4] live oak native to the California Floristic Province.Live oaks are so-called because they keep living leaves on the tree all year, adding young leaves and shedding dead leaves simultaneously rather than dropping dead leaves en masse in the autumn like a true deciduous tree. [5]
The tree's stems live no more than 600 years, but its root system's age [75] [76] was established using carbon dating and genetic matching. [77] Elsewhere in the Fulu mountains, 20 spruces have been found older than 8,000 years. [78] Old Rasmus: 9,500: Norway spruce Picea abies: Sonfjället, Härjedalen: Sweden [79] Mongarlowe mallee: 3,000 ...
They live in association with many kinds of fungi including truffles. Oaks support more than 950 species of caterpillar , many kinds of gall wasp which form distinctive galls , roundish woody lumps such as the oak apple , and a large number of pests and diseases.
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).
The ring-cupped oaks (synonym genus Cyclobalanopsis), native to eastern and southeastern tropical Asia. They have corns with distinctive cups bearing concrescent rings of scales. [2] They commonly also have densely clustered acorns, though this does not apply to all of the species. [citation needed] About 90 species. [2] Species
The Big Oak dates back to circa 1680, which makes it one of the oldest live oaks in the country. The Thomasville live oak has been recognized several times for its long lifespan by various societies, including the International Society for Agriculture in 1987. [3]