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The bark is dark gray and deeply furrowed. The leaves are 8–20 centimetres (3 + 1 ⁄ 4 – 7 + 3 ⁄ 4 inches) long and 3–6 cm (1 + 1 ⁄ 4 – 2 + 1 ⁄ 4 in) wide, with 14–20 small saw-tooth-like triangular lobes on each side, with teeth of very regular shape. [3] The flowers are wind-pollinated catkins.
Leaves: Are alternate, evergreen, simple, and narrowly oblong to lanceolate. They are usually 5–10 centimetres (2 to 4 inches) long, with edges revolute. Occasionally there are a few shallow teeth, a narrow pointed tip, and a leathery texture. They are usually a shiny yellow-green on top and white or silvery on the bottom. [8]
Although called a white oak, it is very unusual to find an individual specimen with white bark; the usual colour is a light gray. The name comes from the colour of the finished wood. In the forest it can reach a magnificent height and in the open it develops into a massive broad-topped tree with large branches striking out at wide angles. [5]
Quercus ajoensis C.H.Mull. – Ajo Mountain shrub oak, Blue shrub oak – Arizona, New Mexico, Baja California; Quercus alba L. – white oak – eastern and central North America; Quercus aliena Blume – Oriental white oak – eastern Asia; Quercus alpescens Trel. – Mexico; Quercus ariifolia Trel. – Mexico; Quercus arizonica Sarg.
Quercus polymorpha, the Mexican white oak, Monterrey oak or netleaf white oak, is a North American species of oak.It is widespread in Mexico, Guatemala, and Honduras, and known from a single population in the United States (about 30 kilometres or 19 miles north of the Río Grande in Val Verde County, Texas) but widely planted as an ornamental.
It is in the white oak section, Quercus sect. Quercus, and is also called mossycup oak, mossycup white oak, blue oak, or scrub oak. The acorns are the largest of any North American oak (thus the species name macrocarpa , from Ancient Greek μακρός makrós "large" and καρπός karpós "fruit"), and are important food for wildlife.
Quercus gambelii, with the common name Gambel oak, is a deciduous small tree or large shrub that is widespread in the foothills and lower mountains of western North America. It is also regionally called scrub oak , oak brush , and white oak .
Quercus austrina, the bastard white oak [3] or bluff oak, is an oak species that is endemic to the southeastern United States from Mississippi to the Carolinas, with a few isolated populations in Arkansas. [4] [5] Quercus austrina can grow to a height of 45 to 60 feet (13.5–18 meters) with a spread of 35 to 50 feet (10.5–15 m). Leaves are ...