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Quercus robur (from the Latin quercus, "oak" + robur derived from a word meaning robust, strong) was named by Carl Linnaeus in Species Plantarum (1753). [11] [12] It is the type species of the genus and classified in the white oak section (Quercus section Quercus). [13] It has numerous common names, including "common oak", "European oak" and ...
whole leaf: Diamond-shaped rounded: rotundifolius: leaf tip or base: Circular, no distinct point semiterete: 3-D shape: Rounded on one side and flat on the other sagittate: sagittatus: whole leaf: Arrowhead-shaped with the lower lobes folded, or curled downward spatulate: spathulatus: whole leaf: Spoon-shaped; having a broad flat end which ...
The Bigelow oak grows to a height of 12 metres (39 feet), with a diameter at breast height of 81 centimetres (32 inches) and gray flaking bark. [1] The leaves range from 3–8 cm (1 + 1 ⁄ 4 – 3 + 1 ⁄ 4 in) long by 2–4.5 cm wide, with shapes Duncan & Duncan describe as "narrowly obovate to oblanceolate or narrowly elliptic", with "broadly rounded and bristleless" tips. [1]
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 ...
Leaf Base Shape: Semiamplexicaul – the leaf base wraps around the stem, but not completely. Leaf Blade Apex: Acuminate – narrowing to a point (a term used for other structures, too). Acute – with a sharp, rather abrupt ending-point. Acutifolius – with acute leaves. Attenuate – tapering gradually to a narrow end. Leaf Blade Margins:
Leaves: Alternate, oblong or obovate, four to six inches long, one to two inches wide, wedge-shaped or rounded at base, acute or rounded at apex, sometimes entire or with undulated margins, sometimes more or less three-lobed. They come out of the bud involute, bright red, covered with rusty down above and white tomentum below.
Oaks for Small Spaces. Picture an oak and you immediately think of a large, spreading giant. This was a limiting factor at my last house, but I found a way to get an oak into the yard without ...
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 ...