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Dendrology (Ancient Greek: δένδρον, dendron, "tree"; and Ancient Greek: -λογία, -logia, science of or study of) or xylology (Ancient Greek: ξύλον, ksulon, "wood") is the science and study of woody plants (trees, shrubs, and lianas), specifically, their taxonomic classifications. [1]
As the tree grows the bark becomes darker and cracks into slightly raised long plates. [7] The largest known living red maple is located near Armada, Michigan, at a height of 38.1 m (125 ft) and a bole circumference, at breast height, of 4.95 m (16 ft 3 in). [8] Leaves on a branchlet from a specimen in northern Florida
Leaves of most plants include a flat structure called the blade or lamina supported by a network of veins, a petiole and a leaf base; [1] but not all leaves are flat, some are cylindrical. [ citation needed ] Leaves may be simple, with a single leaf blade, or compound, with several leaflets .
Quercus georgiana leaves Brown winter leaves on Georgia oak. The shiny green leaves are 4–13 centimeters (1 + 1 ⁄ 2 –5 inches) long and 2–9 cm (1– 3 + 1 ⁄ 2 in) wide, with a 0.6–2.3 cm (1 ⁄ 4 –1 in) petiole, and five irregular, pointed, bristle-tipped lobes; they are glabrous (hairless), except for small but conspicuous tufts of hairs in the vein axils on the underside.
The leaf width is approximately one half its length. Each leaf is matte green with an underneath pale green appearance; moreover, the leaf is covered with abundant soft fuzz, yielding an almost velvety feeling. When a fresh leaf is rubbed or broken, an aromatic scent is exuded, evoking a forest odor. The wood is a dull brown approaching yellow.
Quercus marilandica is a small deciduous tree growing to 15 meters (49 feet) tall, with bark cracked into rectangular black plates with narrow orange fissures. The leaves are 7–20 centimeters (3–8 inches) long and broad, and typically flare from a tapered base to a broad three-lobed bell shape with only shallow indentations.
The leaves are needle-like, flattened, 3–6 cm (1 + 1 ⁄ 8 – 2 + 3 ⁄ 8 in) long and 2 millimetres (3 ⁄ 32 in) wide by 0.5 mm thick, glossy dark green above, [4] with two green-white bands of stomata below, and slightly notched at the tip. The leaf arrangement is spiral on the shoot, but with each leaf variably twisted at the base so ...
Populus grandidentata is a medium-sized deciduous tree native to North America, found mostly in the northeastern United States and southeastern Canada. Leaves are similar to Populus tremuloides, but slightly larger and having larger teeth. [3] The leaves tremble in the wind as those of P. tremuloides do. Bark of younger trees is olive-green ...