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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.
Quercus virginiana, also known as the southern live oak, is an evergreen oak tree endemic to the Southeastern United States. [5] Though many other species are loosely called live oak , the southern live oak is particularly iconic of the Old South .
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]
Quercus fusiformis is an evergreen tree in the southern live oaks section of the genus Quercus (section Virentes). [6] It is distinguished from Quercus virginiana (southern live oak) most easily by the acorns , which are slightly larger and with a more pointed apex.
Quercus turbinella Greene — turbinella oak, Arizona Blue Shrub oak, Shrub live oak or scrub live oak — # southwestern North America; Quercus vaseyana Buckley — Vasey oak — # southwestern North America; Quercus verde C.H.Mull. — Mexico; Quercus vicentensis Trel. — El Salvador, Guatemala, and southern Mexico; Quercus vulcanica Boiss.
The interior live oak is a red oak (section Lobatae) in the California Floristic Province (series Agrifoliae). Q. wislizeni hybridizes with California black oak (Q. kelloggii) (= Quercus × morehus, Abram's oak). All California red oaks show evidence of introgression and/or hybridization with one another.
Quercus chrysolepis, commonly termed canyon live oak, canyon oak, golden cup oak or maul oak, is a North American species of evergreen oak.Its leaves are a glossy dark green on the upper surface with prominent spines; a further identification arises from the leaves of canyon live oak being geometrically flat.
An oak is a hardwood tree or shrub in the genus Quercus of the beech family. They have spirally arranged leaves, often with lobed edges, and a nut called an acorn, borne within a cup. The genus is widely distributed in the Northern Hemisphere; it includes some 500 species, both deciduous and evergreen. Fossil oaks date back to the Middle Eocene.