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Quercus palustris, also called pin oak, [4] swamp oak, or Spanish oak, [5] is a tree in the red oak section (Quercus sect. Lobatae) of the genus Quercus. Pin oak is one of the most commonly used landscaping oaks in its native range due to its ease of transplant, relatively fast growth, and pollution tolerance.
The following terms are used to describe leaf morphology in the description and taxonomy of plants. Leaves may be simple (that is, the leaf blade or 'lamina' is undivided) or compound (that is, the leaf blade is divided into two or more leaflets). [1] The edge of the leaf may be regular or irregular, and may be smooth or have hair, bristles, or ...
The acorns tend to be ellipsoid (ellipse-shaped, from which its scientific name derives), though they tend to be highly variable and range to globose, 6–11 millimeters (1 ⁄ 4 – 7 ⁄ 16 in) long and 10–19 mm (13 ⁄ 32 – 3 ⁄ 4 in) broad, a third to a half covered in a deep cup, green maturing pale brown about 18 months after ...
Examples are oak artichoke gall, oak marble gall, oak apple gall, knopper gall, and spangle gall. These galls are the handiwork of tiny wasps from the Cynipidae . In a complex ecological relationship, these gall wasps become hosts to parasitoid wasps —primarily from the order Chalcidoidea —which lay their larvae inside the gall wasps ...
– 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
However, unlike the pointed teeth on the leaves of the chinquapin oak, chestnut oak leaves generally have rounded teeth. The two species have contrasting kinds of bark: chinquapin oak has a gray, flaky bark very similar to that of white oak ( Q. alba ) but with a more yellow-brown cast to it (hence the occasional name yellow oak for this ...
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]
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 ...