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Quercus ilicifolia is a deciduous tree or shrub growing occasionally reaching a height of 6 meters (20 feet) but usually much smaller. [4] [5] It is gangly and can form a dense thicket. The plant grows from a large taproot, which reach 20 centimeters (8 inches) in thickness. The taproot lives a long time, producing several generations of above ...
Quercus × morehus, [3] Abram's oak in Kellogg's original description [4] (later called oracle oak by Jepson [5]), is a named hybrid between the red oaks Quercus kelloggii (California black oak) and Quercus wislizeni (interior live oak). [6]
– Chinkapin oak – eastern, central, and southwestern US (West Texas and New Mexico), northern Mexico; Quercus ningqiangensis S.Z.Qu & W.H.Zhang – southeastern China; Quercus oblongifolia Torr. – Arizona blue oak, Southwestern blue oak, or Mexican blue oak – # southwestern U.S., northwestern Mexico; Quercus obtusata Bonpl. – Mexico
All oak trees may display foliage marcescence, even species that are known to fully drop leaves when the tree is mature. [7] Marcescent leaves of pin oak (Quercus palustris) complete development of their abscission layer in the spring. [8] The base of the petiole remains alive over the winter. Many other trees may have marcescent leaves in ...
Quercus stellata, the post oak or iron oak, is a North American species of oak in the white oak section. It is a slow-growing oak that lives in dry areas on the edges of fields, tops of ridges, and also grows in poor soils, and is resistant to rot, fire, and drought. Interbreeding occurs among white oaks, thus many hybrid species combinations ...
Quercus margarettae is a deciduous shrub or small tree growing up to 12 meters (40 feet) tall. [5] The bark is gray and scaly. The leaves are up to 135 millimetres (5 + 1 ⁄ 4 inches) long, and bipinnately lobed with rounded lobes. The plant grows in sandy or gravelly soil. [6] [4]
The leaves are alternate, simple and tardily deciduous, remaining on the tree until mid-winter; they are 3–12 centimeters (1 + 1 ⁄ 4 – 4 + 3 ⁄ 4 inches) long and 2–6 cm (3 ⁄ 4 – 2 + 1 ⁄ 4 in) broad, variable in shape, most commonly shaped like a spatula being broad and rounded at the top and narrow and wedged at the base. The ...
Quercus aliena, the galcham oak [2] or oriental white oak, [2] is a species of oak in the family Fagaceae, in the white oak section Quercus. [ 3 ] [ 4 ] Description