Quercus includes trees or shrubs that can be either deciduous or evergreen. The leaves may be entire, lobed, or toothed. Flowers are not prominent, but they are succeeded by distinctive acorns. Some species may display notable autumn foliage.

Quercus coccifera subsp. rivasmartinezii

Quercus coccifera var. palaestina

Quercus cocciferoides is a semi-evergreen tree or substantial shrub that typically grows to about 15 meters in height, with branches extending close to the ground. The foliage is green on the upper side and initially appears pale and fuzzy, retaining this texture on the underside. The leaves feature serrated margins in the upper half and smooth edges at the base. When they drop, they turn yellow-brown before falling. The acorns produced by this species are small and largely encased by their cups.

Quercus cocciferoides

Quercus coccinea is a prominent deciduous tree that can reach heights of up to 24 meters. Its leaves, measuring between 7.5 and 15 centimeters, are characterized by a deep lobation, typically displaying 7 to sometimes 9 lobes, with coarse teeth along the edges. The upper leaf surface is a rich dark green, while the underside is lighter, both showcasing a glossy finish. In autumn, the foliage transforms to a vivid scarlet that endures for an extended period. In spring, the tree produces yellow-green catkins as flowers. If acorns are formed, they can grow up to 2.5 centimeters in length and nearly as wide, nestled within a deep, thin-cupped husk.

Quercus coccinea

Quercus coccinea 'Campanile'

Quercus coccinea 'Splendens' is a sizable deciduous tree characterized by a broad, rounded canopy. Its leaves are deeply lobed, reaching lengths of up to 18 cm, and exhibit a glossy dark green hue that transforms into vibrant shades of scarlet and crimson as autumn approaches. During the growing season, this variety produces yellow-green catkins in clusters.

Quercus coccinea 'Splendens'

Quercus corrugata

Quercus crassifolia is a medium to large tree that can reach heights of around 20 meters. In its natural habitat, it may be deciduous or semi-evergreen; however, in cultivated settings, it typically behaves as an evergreen. The foliage starts off with a reddish down, maturing to a dark, glossy green on the upper surface and a lighter shade underneath. When leaf drop occurs, the leaves turn yellow and fall just prior to the emergence of new growth.

Quercus crassifolia

Quercus crassifolia 'Flamingo'

Quercus crassipes

Quercus crispipilis

Quercus dalechampii

Quercus delgadoana

Quercus dentata is a medium-sized deciduous tree that typically reaches a height of approximately 15 meters. Its leaves are notably large, measuring around 30 centimeters or more in length. As autumn approaches, the foliage transitions to an orange hue before remaining on the tree as brown remnants throughout winter, resembling paper bags, until new leaves sprout in spring. The acorns feature distinctive cups adorned with long, curved, bushy scales.

Quercus dentata

Quercus dentata 'Adelaide'

Quercus dentata 'Carl Ferris Miller' is a compact tree or substantial shrub that reaches a height of up to 10 meters. Its growth begins with a narrow, column-like shape, eventually broadening to create a rounded canopy. The robust branches support exceptionally large, ovate leaves that are glossy and deep green, with mature specimens displaying leaves that can grow as long as 30 centimeters. In the fall, the foliage transitions to shades of red and orange before settling into a warm brown, with many leaves persisting through winter and dropping in spring. In the spring, greenish-yellow catkins appear, followed by clusters of brown acorns that measure around 2 centimeters in length.

Quercus dentata 'Carl Ferris Miller'

Quercus dentata 'Kogane Fuji'

Quercus dentata 'Pinnatifida' is a vertical, deciduous tree that typically reaches a height of approximately 10 meters. Its broad branches support thick stems adorned with dark green, obovate foliage, which is distinctly lobed with narrow, pointed segments. In spring, the new leaves are highlighted by a pink margin, transitioning to vibrant hues of orange and yellow as autumn approaches. The tree produces greenish-yellow catkins in the spring, which are succeeded by clusters of brown acorns measuring about 2 centimeters in length.

Quercus dentata 'Pinnatifida'

Quercus dentata 'Sir Harold Hillier' is a gradually maturing deciduous tree that reaches a height of up to 10 meters. It features robust branches and develops a rounded canopy as it ages. The leaves are notably large, with a glossy finish and shallow lobes, transitioning to rich shades of orange and pink during the autumn months. In spring, the tree produces small greenish-yellow catkins, which are succeeded by nearly spherical acorns.

Quercus dentata 'Sir Harold Hillier'

Quercus dentata subsp. yunnanensis

Quercus deserticola

Quercus dilatata ambig.

Quercus dolicholepis is a small to medium-sized evergreen tree or a large shrub, typically attaining a height of approximately 12 meters. The foliage features a green upper surface, with new leaves appearing pale and covered in fine hairs on their underside. Initially, the leaves are rounded with slightly serrated margins, transitioning to longer, smooth-edged forms as they develop. The acorns are characterized by their cups adorned with elongated, shaggy scales.

Quercus dolicholepis

Quercus douglasii

Quercus dumosa

Quercus durata

Quercus durifolia

Quercus eduardi

Quercus elliottii

Quercus ellipsoidalis is a sizable tree, reaching heights of up to 30 meters, characterized by its broad canopy. The upper branches grow upward, while the lower branches tend to droop toward the earth. Its leaves are deeply lobed and glossy green, measuring between 7 and 13 centimeters in length, transitioning to a rich crimson-purple hue during the fall. The tree produces small, yellowish-green flowers in the form of catkins, which give way to elliptic acorns that feature shallow, saucer-like cups.

Quercus ellipsoidalis

Quercus ellipsoidalis 'Hemelrijk' is a robust, large tree known for its vibrant red foliage in autumn. The leaves are glossy, bright green, and feature deep lobes that taper to a sharp point. As they age, the leaves transition to a pinkish-brown hue and persist on the tree during the winter months. The flowers appear as subtle green and yellow catkins, giving way to acorns that are brown with darker stripes, measuring up to 2 cm long and nestled in scaly cups.

Quercus ellipsoidalis 'Hemelrijk'

Quercus emoryi

Quercus engelmannii

Quercus engleriana is a compact evergreen tree, typically reaching about 8 meters in height. Its leaves are elongated, featuring a glossy dark green upper surface and a woolly brown underside, with serrated margins. In the autumn, it produces small acorns.

Quercus engleriana

Quercus fabrei

Quercus faginea

Quercus faginea aff. subsp. broteroi

Quercus faginea subsp. broteroi

Quercus falcata

Quercus floribunda is a sizable, rapidly growing tree that can reach heights of up to 30 meters. Its leaves are dark green, glossy, and feature serrated edges with tiny bristles. In the spring, it produces an abundance of elongated male catkins, which are more prominent than those of many other species. The bark displays a distinctive dark red-brown coloration.

Quercus floribunda

Quercus frainetto is a rapidly expanding deciduous tree that can attain a height of up to 30 meters. Its leaves, which can measure as much as 20 centimeters in length, are dark green with several rounded lobes and turn yellow-brown in the fall. The tree produces subtle greenish flowers in the form of catkins, which are followed by small clusters of acorns approximately 2 centimeters long, nestled in hairy cups.

Quercus frainetto

Quercus frainetto 'Düzce'

Quercus frainetto 'Hungarian Crown' is a robust, large deciduous tree characterized by its substantial, rounded canopy. The leaves are distinctly lobed, reaching lengths of up to 20 cm and providing notable fall color. The tree produces flowers that are subtle in appearance, typically greenish in hue.

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