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Quercus robur, the pedunculate oak or English oak, [3] [4] is a species of flowering plant in the beech and oak family, Fagaceae. It is a large tree, native to most of Europe and western Asia , and is widely cultivated in other temperate regions.
Its foliage is remarkable for its size, among the largest of all oaks, consisting of a short hairy petiole, 1–1.5 centimetres (3 ⁄ 8 – 5 ⁄ 8 inch) long, and a blade 10–40 cm (4– 15 + 1 ⁄ 2 in) long and 15–30 cm (6–12 in) broad, with a shallowly lobed margin; the form is reminiscent of an enormous pedunculate oak leaf. The ...
Quercus durata, commonly known as leather oak, is a species of oak in the white oak group (subgenus Quercus, section Quercus). The common name "leather oak" is derived from the leathery texture on the lop of its leaves. It is endemic to California, common in the Coast Ranges and the foothills of the Sierra Nevada.
Quercus laurifolia is a tree growing to 20–24 meters (65–80 feet) (rarely to 40 m or 130 ft) tall, with a large, circular crown. The leaves are broad lanceolate, 2.5–12.7 centimeters (1–5 inches) long and 1.3–4.4 cm (1 ⁄ 2 – 1 + 3 ⁄ 4 in) broad, and unlobed (very rarely three-lobed) with an entire margin and a bristle tip; they typically fall just as the new leaves start to ...
This is a list of plants organized by their common names. However, the common names of plants often vary from region to region, which is why most plant encyclopedias refer to plants using their scientific names, in other words using binomials or "Latin" names.
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]
Quercus rugosa is an evergreen shrub or tree. [3] The bark is brown and scaly. The leaves are thick and leathery, rarely flat, usually cupped, up to 15 centimetres (6 inches) long, dark green on the top but covered with a thick of reddish-brown hairs on the underside.
Conversely, oak groves in wetter areas that historically had closed canopies of large trees are becoming crowded with young oaks that grow thin and spindly, due to lack of fires that would clear out seedlings. [15] Chionodes petalumensis caterpillars feed on oak leaves, including those of Quercus garryana [20] and valley oak (Q. lobata). [21]